This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission of PUI Audio Inc. is prohibited. 2019, PUI Audio Inc. Data Sheet APR050SO-R PUI Audios eXtreme Series speakers are purpose-built for superior performance. When combined with the APR050SO-R passive radiator, a speakers low frequency performance can be extended almost a full octave lower, for exceptional bass response without adding space for a tuned vent. Features: Replaces a tuned port in vented enclosures, saving space Enhances bass response in many speakers from 25mm to 70mm in diameter Built with peel-and-stick 3M double-sided tape for quick, easy mounting Stamped steel diaphragm Specifications (Parameters derived from Golden Sample, up to 20% variance is acceptable except for Fs) Parameters Values Units Resonant Frequency (Fs) 7810% Hz Mechanical Q-Factor (Qms) 2.53 - Moving Mass (Mms) 4.06 Grams Mechanical Compliance (Cms) 0.928 mm/N Mechanical Stiffness (Kms) 1.09 N/mm Mechanical Resistance (Rms) 0.81 Kg/s 2 Diaphragm Surface Area (Sd) 8.7 cm Frame Material Stamped Steel - Diaphragm Material Stamped Steel - Surround Material TPE - Weight 5.67 Grams Ingress Protection Rating IP65 - RoHS 2015/863/EU, - Environmental Compliances REACH 197 Operating Temperature -20 ~ +60 C Two APR050SO-Rs used with AS04504PS-X-R in 0.4 Liter Enclosure (in Blue) AS04504PS-X-R in 0.4 Liter Sealed Enclosure (in Red) PUI Audio, Inc., 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925 This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission of PUI Audio Inc. is prohibited. 2019, PUI Audio Inc. Example Applications Speaker Enclosure Volume* of APR050SO-Rs f3 (-3 dB frequency) f10 (-10 dB frequency) 0.40 Liters Two 250 Hz 105 Hz AS04504PS-X-R 0.20 Liters Two 218 Hz 112 Hz 0.10 Liters Two 192 Hz 128 Hz 0.50 Liters Two 174 Hz 95 Hz AS05804PS-X-R 0.25 Liters Two 150 Hz 100 Hz 0.10 Liters Two 159 Hz 120 Hz 0.40 Liters Two 260 Hz 103 Hz AS06504PS-X-R 0.20 Liters Two 217 Hz 110 Hz 0.10 Liters Two 193 Hz 133 Hz *Enclosure volume does not include volume displaced by speaker and passive radiator Reliability Testing Type of Test Test Specifications 96 hours at +60C 2C followed by 0.5 hours in High Temperature Test normal room temperature 96 hours at -20C 3C followed by 0.5 hours in Low Temperature Test normal room temperature 96 hours at +40C 2C with relative humidity at 80% followed by 12 hours in normal room Humidity Test temperature Dimensions PUI Audio, Inc., 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925