How to Choose the Right IEC 60601-1-8 Speaker

How to Choose the Right IEC 60601-1-8 Speaker

With the increased use of medical electronics in medicine today, the International Electrotechnical Commission (IEC) developed the IEC 60601-1-8 standard to regulate alarm signals to prevent confusion, when several instruments are sounding at the same time in the same room.

While the IEC 60601-1-8 standard covers every aspect on the alarm signals, and should be referred to as the ultimate reference with regards to the specific tones to use in your device, there are three main requirements that pertain to speaker selection:

  1. A pulsed frequency between 150 Hz and 1 kHz
  2. At minimum of four harmonics of the pulsed frequency between 300 Hz and 4 kHz
  3. The sound pressure level (SPL) of the harmonics must be within ±15 dB of the pulsed frequency

Additional pulse requirements—such as pulse duration, rise time, and fall time—are also part of this standard, but pertain more to the input signal sent to the speaker.

Below is an example of the type of waveform characteristics* that may be used to meet the IEC 60601-1-8 criteria. The flat portion of the waveform is used to create the harmonics from the fundamental pulsed frequency.

*For informational purposes only

PUI Audio has taken the performance criteria called out by IEC 60601-1-8 and performed studies on speakers to gauge which specifications stand out as most important when selecting speakers to meet the criteria.

Each test below was performed with the speaker mounted to a test baffle, and a B&K measurement microphone connected to a Listen, Inc. SoundCheck test system set to spectral analyzer mode.

AS06608PS-R with 1W, 520 Hz square wave
Microphone spaced at 10cm from test baffle
AS04508MR-3-R with 1W, 325 Hz square wave
Microphone spaced at 10cm from test baffle

AS04004PO-R with 1W, 325 Hz square wave
Microphone spaced at 10cm from test baffle

AS02808MR-R with 1W, 325 Hz square wave
Microphone spaced at 10cm from test baffle




From our testing, we can deduce the characteristics of a speaker that makes it an ideal candidate to use within a Medical Device that needs to meet the criteria set forth by IEC 60601-1-8.

Steps to selecting the ideal speaker for your application:

1. Reference IEC 60601-1-8 to ensure correct tone selection for your product. Below is an example of tonal requirements* for different product applications.

Cause Medium Priority High Priority Mnemonic Notes Examples of type of Alarm System
General C C C C C C – C C Fixed Pitch Other Alarm Systems that do not readily fall into one of the following categories, including but not limited to electrical or non-oxygen gas supply systems, EEG monitors, intracranial pressure monitors, laparoscopic gas insufflation systems, calf compressor systems, etc.  Optionally this sound is permitted for the Alarm System of any kind of equipment.
Cardiac c e g c e g – g C Trumpet call; Call to arms; Major chord Anesthesia workstations that include cardiac monitors, multi-parameter monitors which include cardiac monitors, heart rate monitors, invasive or non-invasive blodd pressure monitors, cardiac output monitors, peripheral perfusion monitors (plethysmographs), transesophageal echo, fetal heart rate monitors.
Ventilation c a f c a f – a f Inverted major chord; Rise and fall of the lungs Anesthesia workstations which include ventilators (but which do not include cardiac monitors); lung ventilators, spirometers, CO2 monitors, ventilator disconnect (airway pressure) monitors, etc.
Oxygen C b a C b a – g f Slowly falling pitches; Top of a major scale; Falling pitch of an oximeter Pulse oximeters, transcutaneous / tissue oxygen monitors, oxygen analyzers, oxygen concentrators, oxygen gas supply lines.
Drug or Fluid Delivery C d g C d g – C d Jazz chord (inverted 9th); Drops of an infusion falling and “splashing” back up Volumetric infusion pumps, syringe drivers, anesthetic agent delivery systems or analyzers.
Equipment or Supply Failure C c c C c c – C c Falling or dropping down Any device when it experiences loss of power or other major failure of the device.

2. Convert the tones into their respective frequency. Use this musical note to frequency conversion chart to assist you.

3. Based upon the lowest musical note’s frequency (where C4, or middle C, would be ~261 Hz), you would start filtering for speakers with a resonant frequency of 261 Hz or lower.

4. If you need to meet a target SPL—70 dB at 1 meter is a good rule-of-thumb—you would then additionally filter for speakers that can achieve that SPL while observing the speaker’s power rating.

Speaker Integration Best Practices

  • If possible, mount the speaker to the inside face of the outer housing. This maximizes the speaker’s measured output. Leave a keep-out area of at least 3mm between the speaker’s diaphragm and the surface in front of it.
  • Ensure that the speaker is mounted in such a way to create a seal along the outer edges of the speaker’s frame. This reduces cancelation that occurs if the front of the speaker’s diaphragm/cone can interact with the back of the diaphragm/cone. Cancelation can cause a reduction in output below 1 kHz.
  • As the signal to the speaker is a trapezoidal waveform, or a square wave, power handling needs to be calculated using the formula below. Do not exceed the rated power (not the maximum instantaneous power, which is meant for use with voice or music) of the speaker.
    Power = (Volts peak)2 / Impedance
    Exceeding the speaker’s rated power will cause damage over time. Typically the type of damage will be broken voice coil tinsel leads or a burned voice coil that causes open load resistance, or a deformed voice coil former which locks the voice coil in the magnetic motor.
  • Mounting the speaker within an enclosure will improve performance at and below the resonant frequency of a speaker. Please contact PUI Audio for more information regarding the correct enclosure volume for your application.
  •  If your application will be chemically cleaned in a hospital environment, choose a speaker that has been treated (our WR series speakers) or a speaker with a Mylar or aluminum diaphragm.

Recommended Speakers

PUI Audio is the go-to speaker source for medical applications. Decades of experience in assisting the world’s leading Medical Device manufacturers allows us to recommend the following speakers for IEC 60601-1-8 devices:

Hi Fidelity & Superior Frequency Response:

Part Number Dimensions (in mm) Resonant Frequency SPL @ 10cm at Rated Power SPL @ 1m at Rated Power
AS02704MS-N50-LW100-R 27L x 27W x 6.6H 350 Hz 96 dB 76 dB
AS03204MS-3-R (4 ohm)

AS03208MS-3-R (8 ohm)

32.7L x 31.7W x 16.5H 200 Hz 101 dB 81 dB
AS03604MR-N50-R 36D x 18H 200 Hz 103 dB 83 dB
AS06004PS-R (4 ohm)

AS06008PS-R (8 ohm)

66.8L x 66.8W x 26.5H 160 Hz 109 dB 89 dB
AS09208AR-R 92D x 44.6H 90 Hz 112 dB 92 dB
AS03608AS-R 36L x 36W x 16.8H 250 Hz 98 dB 78 dB
AS05308AS-R 53L x 53W x 34H 230 Hz 108 dB 88 dB
AS06504PS-X-R 65.0L x 65.0W x 36.7H 130 Hz 111 dB 91 dB

Lead-Wired and/or Enclosed for Ease of Use:

Part Number Dimensions (in mm) Resonant Frequency SPL @ 10cm at Rated Power SPL @ 1m at Rated Power
AS02008MR-LW152-R 20D x 3H 500 Hz 93 dB 73 dB
AS02808MR-LW152-R 28D x 5.2H 500 Hz 95 dB 75 dB
AS03608MR-LW100-R 36D x 4.6H 500 Hz 101 dB 81 dB
AS04004PO-2-LW152-WR-R 40L x 28.5W x 11.7H 420 Hz 100 dB 80 dB
ASE04508MR-LW150-WP-R 45L x 36W x 20H* 420 Hz 98 dB 78 dB
AS06608MR-LW152-R 66L x 66W x 12.5H 380 Hz 101 dB 81 dB
AS07104PO-LW152-R (4 ohm)

AS07108PO-LW152-R (8 ohm)

71L x 41W x 25H 250 Hz 104 dB 84 dB
ASE06008MR-LW150-R 60L x 30W x 10.3H* 300 Hz 101 dB 81 dB

*Denotes speaker with enclosure

Rugged and Durable for Element Resistance:

Part Number Dimensions (in mm) Resonant Frequency SPL @ 10cm at Rated Power SPL @ 1m at Rated Power
AS04004MR-N50-WP-R 40D x 21.5H 160 Hz 105 dB 85 dB
AS04504PS-X-R 45.4L x 43.3W x 29.2H 170 Hz 110 dB 90 dB
AS05804PS-X-R 58.3L x 55.3W x 33.8H 140 Hz 109 dB 89 dB
AS04004PO-2-WR-R 40L x 28.5W x 11.7H 420 Hz 106 dB 86 dB
AS04004PR-WR-R 40L x 40W x 17.5H 180 Hz 104 dB 84 dB
AS04008PS-4W-WR-R 40L x 28.3W x 11.5H 380 Hz 101 dB 81 dB
AS06608PS-WR-R 66.3L x 66.3W x 29H 230 Hz 115 dB 95 dB
AS07104PO-LW152-WR-R (4 ohm)

AS07108PO-LW152-WR-R (8 ohm)

71L x 41W x 25H 250 Hz 104 dB 84 dB

Custom Audio Solutions for Your Unique Applications

Custom Audio Solutions for Your Unique Applications

Every project is different, and when a standard off-the-shelf solution doesn’t quite give the results you are after, PUI Audio is here to help create a solution that fits your exact need. Form, Fit, and Function can be custom-tailored on most of our components to meet your specific needs.

Our Audio Engineers are available to consult on your project to help you make the best decisions, optimize your product design for superior results, and rapid prototype a design in as little as 24 hours using one of our 3D printers and measurement systems.

From simple value-added services such as adding lead wires and connectors to components, to full-scale audio product design and consulting, PUI Audio has 50+ years of audio expertise to solve your easiest and your most complex challenges.

How we help our customers:

  • Custom tuned-port, and acoustic suspension enclosure designs
  • Bespoke speaker design
  • Audio component integration
  • Equalization settings and sound file editing
  • Helmholtz chamber designs for piezo benders
  • Complete audio system analysis
  • Piezo-ceramic design
  • Final product testing

Wide-Band MEMS Microphones Application Guide

Wide-Band MEMS Microphones Application Guide

Microphone Placement within a Product

When designing a PUI Audio MEMS microphone into your product, careful PCB placement and sound hole position need to be considered to minimize noise. The microphone should be placed to avoid antennae, amplifiers, motors, power supplies, or any other devices that may create noise interference.

Additionally, microphones should not be placed on the same PCB as spring contact or surface mount speakers, as the vibration from the speaker is often transmitted to the microphone through the PCB, creating noise, echo, or feedback.

Microphone External Sound Hole Placement on a Product’s Housing

The external sound hole on a product should be limited in distance from, and larger in diameter than, the sound hole on the microphone.

A direct path from the microphone’s sound hole (also referred to as the Acoustic Port) to the exterior of a product’s housing is required for optimum frequency response and to minimize unwanted noise from entering the microphone.

Placing the external sound hole on a flat surface simplifies the design of a gasket between the housing and the microphone sound hole.

Microphone Sound Channel Design

When designing the sound channel that connects the external sound hole to the microphone’s sound hole, first ensure that there is no leak by gasketing the area between the external sound hole and the microphone sound hole.

Many echo and feedback problems are caused by a leaky gasket between the sound hole between a top-firing microphone and the housing or between the bottom-firing microphone’s PCB and the housing. Please ensure the gasket is fully compressed to eliminate potential problems and/or a degradation in performance.

The sound channel should be kept as short as possible and larger in diameter than the microphone sound hole for top-firing microphones or be greater than or equal to the diameter of the PCB sound hole for bottom-firing microphones.

The diameter of gasket should be as close to the same size as the external sound hole to prevent creating a Helmholtz resonating chamber.

A long, thin or short, wide sound channel can “tune” the microphone, creating a peak in response between 10 kHz to 15 kHz, followed by a steep roll-off in frequency response thereafter.

Top-Firing Microphones: The diameter of the external sound hole and channel created by the gasket should be at least 0.1mm larger in diameter than the microphone’s sound hole.

Bottom-Firing Microphones: The diameter of the sound hole on the PCB should be at least 0.5mm to prevent solder paste from melting and entering the sound hole. Additionally, the interior of the PCB sound hole should not be plated to prevent solder paste from flowing into it.

Analog MEMS Microphone Circuit Design

Slight variances in power supply voltage do not affect the sensitivity of PUI Audio’s analog MEMS microphones (designated by AMM in the PUI Audio part number). As such, a circuit designer only needs to ensure that the voltage output of the power supply is within the voltage range called out in the MEMS microphone specifications.

Unlike traditional ECM microphones, MEMS microphones do not require the use of a bias resistor between the power supply and the microphone. MEMS microphones have an independent output that is separate of the voltage input. It is recommended to decouple the noise of the power supply from the MEMS microphone by using a 0.1µF capacitor at C1 in the diagram below.

A DC-blocking/high-pass filter capacitor should be placed between the MEMS output pin and the CODEC/ADC/pre-amplifier’s input pin, C2 in the diagram below. Values between 1µF and 3µF are often used, where the larger the capacitor value, the higher the frequency at which the high-pass filter’s corner frequency is placed.

In the event of electro-magnetic interference, place a resistor that matches the microphone’s impedance between the amplifier’s unused differential input and the microphone’s ground.

Digital MEMS Microphones

PUI Audio offers digital output MEMS microphones (designated by DMM in the PUI Audio part number) with PDM and I2S data formats. Both feature a Left/Right channel select pin for stereo audio capture and data transfer over a single data input line on a DAC or CODEC.  The I2S digital MEMS (DMM-4026-B-I2S-R) microphone also offers the ability to set up microphone arrays by changing the WCLK Hold Time.

PUI Audio’s digital MEMS microphones offer a Full Power mode, a reduced sensitivity Low Power mode, and a Sleep mode for reduced current draw and battery powersavings when the microphone isn’t needed.

Modes are activated by changing the input clock frequency to the microphone.

Solder Pad and Stencil Design

Each MEMS microphone is built for reflow soldering, where the solder joints serve as the means for electrical and mechanical connection to the PCB. On bottom-firing microphones, a solder joint also acts as the acoustic seal between the microphone sound hole and the PCB.

The recommended solder pad design and stencil layout is listed within the specifications for each microphone. The PCB solder pad to microphone pad ratio is 1:1

Solder Paste

A Type 4 no-clean solder paste is recommended to be used with PUI Audio’s MEMS microphones. The stencil thickness should be between 0.1mm to 0.12mm, with the ratio of the size of the stencil to pad being between 0.8:1 to 0.9:1 to minimize tin bead content.

For bottom-firing microphones, solder pastes with low flux content (such as Indium 8.9 HF SAC305) are recommended to prevent excessive flux from entering the microphone sound hole, causing damage.

Pick-and-Place Operations

Special attention needs to be observed when programming an SMD pick-and-place machine (also known as P&Ps) to place top-firing MEMS microphones (designated with a –T within PUI Audio’s part number) due to the placement of the sound hole (referred to as the Acoustic Port or AP in the specifications) on the same surface that vacuum is applied to.

The specifications call out the recommended pickup location, and the location of the sound hole.  To avoid damaging top-firing microphones, do not allow the SMD pickup nozzle to pass over the sound hole. The inside diameter of the nozzle must only move directly to the recommended pickup location, which is pink in the PUI Audio specifications.

Programming the SMD pick-and-place machine to place bottom-firing microphones is easier as the sound hole is placed on the bottom of the part.

Reflow Soldering

PUI Audio’s MEMS microphones feature gold-plated pads for lead-free reflow soldering. Please follow the reflow process below and do not exceed a total of three cycles.  If multiple reflow cycles are required, the microphone must be allowed to return to room temperature before the start of the next reflow cycle.
Allow the microphone to rest at room temperature for a minimum of three hours before functionally testing it.

MEMS Microphone PCB Cleaning Considerations

On PCBs that contain a PUI Audio MEMS microphone, please follow these precautions to minimize potential damage to the microphone.

  • Do not wash or clean PCBs after the reflow process.
  • Do not expose the PCB to ultrasonic processing or cleaning.
  • Do not pull a vacuum over the microphone sound hole (on both top-firing and bottom-firing microphones).
  • Do not apply more than 0.3mPa of air pressure into the microphone sound hole.
  • If a dust removal system is used, please ensure that the air gun nozzle diameter is greater than or equal to 2mm, less than 0.3mPa of air pressure is used, the distance between the tip of the air gun nozzle and the PCB is greater than 50mm, and that the total cycle duration is less than five seconds.
  • To eliminate the chance of dust entering the microphone’s sound hole, it is recommended that the sound hole be covered during the dust removal process, if possible.

Choosing the Right Microphone

Choosing the Right Microphone

Dynamic Microphone

A dynamic microphone operates on the same basic electrical principles as a speaker, but in reverse. Sound waves strike the diaphragm, causing the attached voice coil to move through a magnetic gap creating current flow as the magnetic lines are broken.

Dynamic microphones are typically more resilient than other common microphones (such as condenser microphones), due to their more rugged diaphragms and are most commonly used in high SPL environments such as in concert venues for sound reinforcement applications.

While more robust than condenser microphones, dynamic microphones are often much less sensitive

(producing less signal, or voltage with a given sound input) than condenser microphones, their low frequency performance is highly dependent on spacing from the acoustic source, and their inductance (due to the use of a high impedance coil) often reduces frequency response above 10 kHz.

Any speaker can be used as a dynamic microphone, with many commercial drive-thru call boxes using a speaker as both the audio output and audio . Typically, the most sensitive speakers (more SPL output with a given input) will make for the most sensitive dynamic microphone and the larger the diaphragm, the narrower the polar pattern.

Sample Frequency Response of a Dynamic Microphone

A Call Box Uses a Speaker as both
a Microphone and a Speaker

Electret Condenser Microphone

Electret condenser microphones (ECMs) operate on the principle that the diaphragm and backplate interact with each other when sound enters the microphone.

Either the diaphragm or backplate is electrically charged/polarized to create a magnetic field, the interaction within the field causes a change in capacitance, corresponding to the change in distance between the diaphragm and backplate.

A JFET within the microphone capsule acts as a pre-amplifier and changes the varying capacitance to varying voltage for use with another preamplifier or amplifier to boost the signal to a usable output.

The thin, lightweight diaphragm makes modern ECMs very sensitive when compared to dynamic microphones, with high-resolution capabilities and an ultra-wide frequency response. Most ECMs feature a housing design that is very small, making them easy to place within many different products.

Since the size of the internal diaphragm is quite small and thin, an ECM will typically have a lower Acoustic Overload Point (AOP) where the amount of input signal causes excessive distortion, when compared to a dynamic microphone. 

ECMs can be made with many different types of polar patterns, to include omni-directional, uni-directional/cardioid, noise-canceling/bi-directional, and different variants of the cardioid type.

Frequency Response of the POM-2730L-HD-R ECM
(with 3VDC input and 94 dB acoustic source at 50cm)

Typical ECM Drive Circuit
(GSM buzz-blocking capacitors inside ECM)

Magnified View of 
MEMS Microphone 
DiaphragmMEMS Microphone

Most MEMS microphones work off the same principles as ECM microphones, but the working parts are scaled-down in size using Micro Electrical-Mechanical System (MEMS) processes to etch a diaphragm out of a silicon wafer, which is then combined on a PCBA with an ASIC (Application Specific Integrated Circuit).

The moveable diaphragm works in unison with a fixed and electrically charged backplate. A change in distance between these two devices, when varying air pressure (or sound) enters through the acoustic port, creates a change in capacitance. This change in capacitance is turned into a varying voltage and is then pre-amplified by the ASIC before the signal is sent on its way to the output.

MEMS microphones typically have an omni-directional polar pattern, are built with either analog or digital ASICs, and are offered in top-firing as well as down-firing configurations. Current draw is typically low—200µA or less at full voltage for an analog version, and 800µA or less at full voltage for a digital version—with most digital MEMS microphones able to be powered-down into a Low Power Mode or Sleep Mode.

Digital MEMS microphones are sometimes used in arrays—multiple microphones splayed out in a specific pattern—for beam-forming applications. Beam-forming allows for a device to figure out which direction a sound came from due to the delay seen (from microphone to microphone) when monitoring all microphones at once, in the time domain, such as is used on the Amazon Echo™ devices.

Benefits of using a MEMS microphone include reduced power consumption, reduced size, reduced manufacturing costs with reflow soldering, as well as pick-and-place operations, and lower susceptibility to noise due to mechanical shock. 

MEMS Array Diagram of a Down-Firing MEMS Microphone

Microphone Sensitivity

Sensitivity is a measure of how much voltage a microphone will output, at 1 kHz, when placed at a specific distance from a 94 dB (1 pascal) acoustic source and when referencing that 0 dB is equal to 1VRMS of output, or 1VRMS/Pa.

If a microphone, spaced at 50cm from a speaker generating 94 dB of output, generates roughly 500mVRMS output, it would have a sensitivity of -6 dB. Most microphones have much lower output—between 3mVRMS and 100mVRMS—and a sensitivity between -20 dB and -50 dB.

Microphone Signal-to-Noise Ratio and Dynamic Range

Microphones have a small amount of inherent noise that is self-generated, known as the Noise Floor.

Microphones also have a maximum input SPL at which a certain amount of distortion occurs in the microphone output, known as the Acoustic Overload Point (or AOP) The difference between the rated sensitivity and the noise floor is the Signal-to-Noise ratio.

PUI Audio’s AOM-5024L-HD-R has a sensitivity of -24 dB with 3VDC input.  The signal-to-noise ratio is 80 dB, making the noise level -104 dB and the noise floor 14 dB. The diagram on the right illustrates this.

To put that in perspective, if the total amount of output, for this microphone, is 63 mV/Pa, then the amount of noise in the signal is 0.0063 mV/Pa,  or 0.01% of the total signal. The AOP is listed at 110 dB, making the total dynamic range 94 dB, at the rated voltage, and using the recommended bias resistor.

Increasing drive voltage, or selecting a bias resistor with higher resistance, increases sensitivity (as shown below) at the expense of raising the noise floor by the same amount and decreasing dynamic range.

Microphone Polar Patterns


Omni-directional microphones capture sound equally well from all directions. Choose an omni-directional microphone if you intend to record all sounds within an environment, do not know from which direction the acoustic source will occur, or if a clean bass response is desired.

Omni-directional microphones do not exhibit a proximity effect. Low frequency is captured equally well from any distance and does not dominate other frequencies.



Uni-directional (cardioid) microphones are built with sound holes on the front and on the rear of the capsule.

Inside the capsule, sound from the front takes precedence over sound captured from the rear. Sound from the rear is partially canceled-out, creating a response tailored for one direction.  This microphone works well in automotive applications and in headsets.

Noise Canceling

Noise-canceling (figure-8 or bipolar) microphones feature sound holes in the front and rear of the microphone capsule that capture sound in two directions while rejecting sound to the side of the microphone. 

This type of microphone may be used to reject lower frequencies at a distance (such as wind noise) or to capture two different audio sources at once, such as for stereo recordings.

Making the Right Choice

With all the different types of microphones available, choosing the right one (disregarding size constraints) might seem like a daunting task. Below are things to consider before selecting a microphone.

Ambient Environment

Consider where the microphone is going to be used. Test ambient noise using an SPL meter or SPL phone application.  Even a cheap meter, or free app, is better than not knowing the design environment.

A microphone with high sensitivity isn’t always the best microphone to use. In a quiet setting, where you intend to capture an above-average sound, choose a microphone that is less sensitive to avoid capturing background noise.

If your environment has both loud and quiet acoustic sources, select a microphone with the most sensitivity and highest signal-to-noise ratio.

Distance Between Acoustic Source and Microphone

Sound pressure drops 6 dB for each doubling of distance between the acoustic source and the initial reference point. 

Most PUI Audio microphone specifications are listed with a reference distance of 50cm between a reference speaker and the microphone. 

Use the table to the right to convert the SPL at distance, between your acoustic source and the microphone, to ensure you are not overloading the diaphragm with sound pressure according to the microphone’s AOP.

Meet the Team – Jake

Meet the Team – Jake

Jake Cox is PUI Audio’s Inside Sales Representative for the East! Jake’s favorite part of working at PUI is helping customers find the perfect audio solution to fit their needs, every time.  Not only has Jake had a big year with PUI, but he has just recently become a Dad in 2020! The best advice that Jake uses every day is to “learn something about everything, and everything about something”. Outside of work, Jake loves traveling to new places, BBQ’, riding motorcycles, and playing with his kid.

Meet The Team – Paul

Meet The Team – Paul

Paul Spain is PUI Audio’s CEO. When Paul was asked what he likes best about being on the PUI Audio team, he said, “the passion the team has for success. Everyone puts the goals of the company above their individual to-do list and offers to help their teammates when resources are taxed.” Paul works hard to keep the team motivated with a positive attitude and has a genuine interest in seeing all his employees succeed. Paul is particularly proud of how the leadership team has embraced the business operating system he introduced when he first arrived at PUI Audio in September 2019, and how disciplined the company was throughout the company is utilizing this tool to achieve transparency, accountability, and problem-solving. Outside of work Paul enjoys learning about different cultures and trying new food, reading, coaching soccer, and trying to improve his golf swing.

FLOC Dayton – First Community Support Program for PUI Audio

FLOC Dayton – First Community Support Program for PUI Audio

The team at PUI Audio has started a new Community Support program, focused on nonprofits in the Dayton region. Each quarter, we will support a new nonprofit and share communications about the organization and how we can help support their mission.

The first recipient of our Community Support Program is For Love of Children (FLOC). For Love of Children, Inc. (FLOC) is a 100% volunteer agency, with the mission to serve over 6,000 children in the greater Dayton area who are neglected, abused, in foster care or who need community resource.

Between now and June 30, we will be collecting monetary donations for FLOC as well as the items listed below. If you are interested in supporting in any way, then please contact us.

In addition, FLOC is a partner with the Dayton Mall Non-Profit Co-op.  Items can be dropped off Monday-Saturday from 11am to 6pm to the right of the DSW facing SR 725 at the Dayton Mall. Spot the “LOOK FOR DONATIONS” sign.




Canned Veggies

Canned Fruit

Peanut Butter & Jelly

Pasta & Pasta sauce

Pancake Mix & Syrup

Canned ravioli and spaghetti

Canned Chili

Mac & Cheese

Snack items such as chips, crackers and cookies, raisins, fruit snacks

Pudding and Jell-O cups

Cold Cereal & Oatmeal

Canned protein such as tuna, chicken and beef

Juice, canned milk, bottled water

Baby items (formula, diapers, wipes)

School Supplies

Personal items (shampoo, tooth brushes and toothpaste, soap, deodorant)

Paper supplies (toilet paper, paper plates, and paper towels)

Books & games


Meet the Team – Betty Quinn

Meet the Team – Betty Quinn

Betty Quinn is the Sales Manager at PUI Audio. Betty loves her job because everyone shares the same vision and is dedicated to making sure that as a team, we take care of our customers by offering the best customer service, quality products and innovative solutions. As far as the achievements that she is most proud of, Betty has shared that it is her longevity with the company. This has given her the opportunity to work with all Departments and learn the business from all directions.  She has made lifelong friendships along the way.

The best advice that Betty has learned is to Work Smarter, Not Harder. 

When she is not working, Betty enjoys spending time with her family, especially now that she is a new Grandma.

Community Spotlight: Dayton Kroc Center SC and A Winning Season

Community Spotlight: Dayton Kroc Center SC and A Winning Season

The mission of the Dayton Kroc Center SC has been shared with the PUI Audio team through our CEO, Paul Spain. The cornerstone of Dayton Kroc Center SC is a sponsor-subsidized fee structure to enable any child the opportunity to play club level soccer, which is often cost prohibitive for many families. This allows children from all income levels to experience their full potential through focused coaching, training, mentoring and competitive club soccer games. The geographical focus for the program is Dayton’s urban core.

After relocating to Dayton in September 2019, Paul, a soccer player and coach, made connections in the local soccer community, including the Dayton Kroc Center SC. After being a back-up coach in 2020, Paul took on the role of head coach for the newly formed U12 boys’ team in the spring of 2021.

The first season was very successful with the team winning their division in the Miami Valley Youth Soccer Association. This truly was a great accomplishment for the entire team, and the team at PUI Audio looks forward to supporting the Dayton Kroc Center SC in the future.


PUI Audio Simulator Receives Copyright

PUI Audio Simulator Receives Copyright




PUI Audio Simulator receives copyright


Dayton, Oh — The PUI Audio Simulator has received an official copyright notice from the U.S. Department of Copyright, giving PUI customers and distributors exclusive access to one-of-a-kind technology that cannot be duplicated.


The copyright award is an acknowledgement of the uniqueness of the simulator tool, as well as its unmatched and innovative place in the market.


“When we set out to give our customers access to a tool that made their jobs easier and removed barriers to having their products heard, we wanted to do something that had never been done before,” said PUI CEO Paul Spain. “The copyright award from the U.S. Copyright Office is an acknowledgement that we met that goal, and it inspires us to keep delivering new and exciting ways for our customers to continue to be heard in the marketplace.”


The PUI Audio Simulator was officially unveiled company-wide to the PUI sales team and manufacturing representative sales network on February 18 during the national sales kickoff, which took place virtually this year.


The simulation tool is the first in the industry and is a web-based application with the ability to digitally replicate actual frequencies and varying types of sound waves. The tool allows users to log in, explore, select and test audio components before identifying what parts and components they need to implement the exact solution they need.


Users of the simulator are able to experiment with sound variations to identify the exact output they need. Users can then identify the components necessary to achieve the desired goals and reach out to the sales team for quotes and solutions. Users unsure of what types of components they might need, can take the tool a step further and utilize the product wizard, answering a few simple questions to identify the right mix.


PUI first designed the tool to replicate the benefits of an in-person meeting with a PUI representative during the COVID-19 pandemic. As the company embarked on the project, Spain said the team realized the benefits of the project would have far reaching benefits beyond the temporary need for a virtual solution.


Spain said PUI is currently developing additional ways to enhance the tool, and plans to roll out continuous upgrades to the application throughout the coming years.


“Our goal will forever be to provide our customers access to expertise that empower them to be heard,” he said. “We are making a concentrated investment to continue to innovate ways to enhance audio components with expertise and give our customers the peace of mind they need to get their products right, the first time.” The simulator is currently available to PUI’s existing customer base, as well as through the company’s website and other channels, so that anyone can use it, following registration on the application.


PUI Audio, Inc. is a Dayton-based audio component manufacturer. Founded in 1972, the company has built a strong reputation for its creative solutions and engineering expertise, helping clients in medical, industrial, security and consumer markets to, “Be heard!” no matter what the need.


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