Projections Unlimited, Inc
PUI | Global Corporate HQ
15311 Barranca Parkway
Irvine , CA , 92618
United States
Phone:(714) 544-2700
Email: sales@gopui.com
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Introducing the N50 Mini Speaker Series from PUI Audio™. High-grade neodymium magnetic motors are employed in each N50 Series speaker to create the highest output possible, in the smallest form factor.

N50 Series Mini Speakers (AS01808PR-N50-R)
Unit of Measure
Items N50 Series Mini Speakers (AS01808PR-N50-R)
AS01808PR-N50-R
N50 Series 18 Millimeter (mm) Diameter and 500 Hertz (Hz) Resonant Frequency Mini Speaker
List Price {QUOTE}
 N50 Series Mini Speakers (AS02204MR-N50-R)
AS02204MR-N50-R
N50 Series 22 Millimeter (mm) Diameter and 300 Hertz (Hz) Resonant Frequency Mini Speaker
List Price {QUOTE}
 N50 Series Mini Speakers (AS02504PR-N50-R)
AS02504PR-N50-R
N50 Series 25 Millimeter (mm) Diameter and 280 Hertz (Hz) Resonant Frequency Mini Speaker
List Price {QUOTE}
 N50 Series Mini Speakers (AS02704MS-N50-LW100-R)
AS02704MS-N50-LW100-R
N50 Series 19.5 Millimeter (mm) Diameter and 350 Hertz (Hz) Resonant Frequency Mini Speaker
List Price {QUOTE}
 N50 Series Mini Speakers (AS02804PR-N50-R)
AS02804PR-N50-R
N50 Series 28 Millimeter (mm) Diameter and 350 Hertz (Hz) Resonant Frequency Mini Speaker
List Price {QUOTE}
Description N/A The 18 mm diameter AS01808PR-N50-R features a paper cone and inverted foam surround for warm, classic tone and high power handling. Add high fidelity sound to your product without sacrificing space! N/A The 22 mm diameter AS02204MR-N50-R features a unique cone and tangential surround design to minimize resonances for flat frequency response from 300 Hz out to 20 kHz. Integrated 32 AWG lead wires allow for easy installation. N/A The 25 mm diameter AS02504PR-N50-R features a paper cone for warm, natural sound when reproducing music or voice. A rubber surround provides excellent damping while remaining resilient over time. 25 mm long 30 AWG lead wires offer quick installation. N/A The 27 mm square frame AS02704MS-N50-LW100-R features a polymer cone, rubber surround, and a Poron gasket for an IP67 ingress protection rating. Add high fidelity sound to your product without sacrificing space with this big-sounding speaker that measures only 6.6 mm thick! N/A The 28 mm diameter AS02804PR-N50-R features a paper cone and foam surround for classic HiFi sound quality. Four openings on the back plate create forced-air cooling to dissipate heat from the voice coil.
Manufacturer Stock N/A {0} N/A {0} N/A {0} N/A {0} N/A {0}
Brands N/A PUI Audio™
Manufacturer N/A PUI Audio�, Inc.
Excursion N/A 1.2 mm N/A 1.5 mm N/A 1.5 mm N/A 1.5 mm N/A 2 mm
Thickness N/A 5.2 mm N/A 6.7 mm N/A 7.5 mm N/A 6.6 mm N/A 7.5 mm
Diameter N/A 18 mm N/A 22 mm N/A 25 mm N/A 19.5 mm N/A 28 mm
Tolerance (±) N/A 0.5 mm
Angle Tolerance (±) N/A 3 º
Rated Input Power N/A 2 W N/A 2 W N/A 2 W N/A 2 W N/A 3 W
Maximum Input Power N/A 2.8 W N/A 2.5 W N/A 2.5 W N/A 3 W N/A 4 W
Impedance N/A 8 Ω N/A 4 Ω N/A 4 Ω N/A 4 Ω N/A 4 Ω
Impedance Tolerance (±) N/A 15 %
Sensitivity N/A 78 dB N/A 79 dB N/A 79 dB N/A 79 dB N/A 76.5 dB
Sensitivity Tolerance (±) N/A 3 dB
Testing Condition for Sensitivity N/A (Sound Pressure Level (SPL) at 1 W/50 cm) (800, 1000, 1200, and 1500 Hz) N/A (Sound Pressure Level (SPL) at 1 W/50 cm) (800, 1000, 1200, and 1500 Hz) N/A (Sound Pressure Level (SPL) at 1 W/50 cm) (800, 1000, 1200, and 1500 Hz) N/A (Sound Pressure Level (SPL) at 1 W/50 cm) (800, 1000, 1200, and 1500 Hz) N/A (Sound Pressure Level (SPL) at 3 W/1 m) (800, 1000, 1200, and 1500 Hz)
Maximum Distortion N/A <5 % N/A <5 % N/A <5 % N/A N/A <5 %
Testing Condition for Maximum Distortion N/A 2 W, 1 kHz N/A 2 W, 1 kHz N/A 1 W, 1 kHz N/A N/A 1 W, 1 kHz
Resonant Frequency N/A 500 Hz N/A 300 Hz N/A 280 Hz N/A 350 Hz N/A 350 Hz
Resonant Frequency Tolerance (±) N/A 20 %
Frequency Range N/A 300 ~ 20000 Hz N/A 200 ~ 20000 Hz N/A 250 ~ 20000 Hz N/A 300 ~ 20000 Hz N/A 250 ~ 20000 Hz
Housing Material N/A Acrylonitrile Butadiene Styrene (ABS) N/A Acrylonitrile Butadiene Styrene (ABS) N/A Acrylonitrile Butadiene Styrene (ABS) N/A Polybutylene Terephthalate (PBT) N/A Acrylonitrile Butadiene Styrene (ABS)
Magnet Material N/A Neodymium (NdFeB)
Weight N/A 4.8 g N/A 5.5 g N/A 6.7 g N/A 9 g N/A 10.8 g
Environmental Protection N/A N/A N/A N/A Ingress Protection (IP67) N/A
Buzz, Rattle, etc. N/A Should not be Audible with 4 Vpk Sine Wave from 500 Hz to 10 kH N/A Should not be Audible with 2.83 Vpk Sine Wave from 300 Hz to 10 kHz N/A Should not be Audible with 2.83 Vpk Sine Wave from 280 Hz to 10 kHz N/A Should not be Audible with 4 Vpk Sine Wave from 500 Hz to 10 kHz N/A Should not be Audible with 3.46 Vpk Sine Wave from 280 Hz to 10 kHz
Polarity N/A When Positive Voltage is Applied to the Positive Terminal, the Diaphragm will Move Outward
Acceptable Soldering Methods N/A
Ingress Protection Rating N/A
Operating Temperature N/A -20 ~ +60 ºC
Storage Temperature N/A -30 ~ +70 ºC N/A -30 ~ +70 ºC N/A -30 ~ +70 ºC N/A -25 ~ +60 ºC N/A -30 ~ +70 ºC
Industry Standards N/A Restriction of Hazardous Substances (RoHS) 2011/65/EU
High Temperature Test N/A 96 hours at +70ºC ± 3ºC followed by six hours in normal room temperature N/A 96 hours at +70ºC ± 3ºC followed by six hours in normal room temperature N/A 96 hours at +70ºC ± 3ºC followed by six hours in normal room temperature N/A 96 hours at +70ºC ± 3ºC followed by six hours in normal room temperature N/A 96 hours at +85ºC ± 3ºC followed by six hours in normal room temperature
Low Temperature Test N/A 96 hours at -30 ºC ± 3 ºC followed by six hours in normal room temperature N/A 96 hours at -30 ºC ± 3 ºC followed by six hours in normal room temperature N/A 96 hours at -30 ºC ± 3 ºC followed by six hours in normal room temperature N/A 96 hours at -30 ºC ± 3 ºC followed by six hours in normal room temperature N/A 96 hours at -40 ºC ± 3 ºC followed by six hours in normal room temperature
Humidity Test N/A 96 hours at +30 ºC ± 3 ºC with relative humidity at 92% to 95% followed by 3 hours in normal room temperature N/A 96 hours at +30 ºC ± 3 ºC with relative humidity at 92% to 95% followed by 3 hours in normal room temperature N/A 96 hours at +30 ºC ± 3 ºC with relative humidity at 92% to 95% followed by 3 hours in normal room temperature N/A 96 hours at +30 ºC ± 3 ºC with relative humidity at 92% to 95% followed by 3 hours in normal room temperature N/A 96 hours at +40 ºC ± 3 ºC with relative humidity at 92% to 95% followed by 3 hours in normal room temperature
Vibration Test N/A 10-55 to 10 Hz cycles, 15 minutes per cycle.
2 hours in each axis X, Y, and Z.
Drop Test N/A Drop the speakers onto a 40 mm thick board 10 times from a height of 75 cm.
Load Test N/A Pink noise is applied at the speakers rated power for 96 hours at room temperature N/A Pink noise is applied at the speakers rated power for 24 hours at room temperature N/A Pink noise is applied at the speakers rated power for 24 hours at room temperature N/A Pink noise is applied at the speakers rated power for 96 hours at room temperature N/A Pink noise is applied at the speakers rated power for 96 hours at room temperature
Note for Reliability Testing N/A After each test, the speaker's SPL shall be ±3 dB of the original SPL
Features N/A
  • Paper cone with inverted foam surround
  • High 78 dB output at 1 W/50 cm
  • N50 neodymium motor
 		N/A
  • Unique design for flat frequency response
  • High 79 dB output at 1 W/50 cm
  • N50 neodymium motor
 		N/A
  • Paper cone and rubber surround
  • High 79 dB output at 1 W/50 cm
  • N50 neodymium motor
 		N/A
  • Polymer cone with rubber surround with Poron gasket for IP67 rating
  • High 79 dB output at 1 W/50 cm with full range sound
  • N50 neodymium motor and 100 mm lead wires
 		N/A
  • Paper cone and foam surround
  • High 76 dB output at 3 W/1 m
  • N50 neodymium motor
Note N/A Specifications subject to change or withdrawal without notice.