Balanced Armature Driver RAB-32257-000 Product Data Sheet Single Full-range Product Features: • • • • Warm Bass Excellent bandwidth for small driver Low cost RoHS compliant Outline Drawing mm (inches) Demonstrator Earphone Model Number (standard sample in BOLD) Straight Cable Ordering Information: Model Number: RAB-32257-000 knowles.com Phone: (630) 250-5100 Fax: (630) 250-0575 [email protected] without MIC with MIC TC-32211-B92 TC-32282-B92 Knowles 1151 Maplewood Drive Itasca, Illinois 60143 Balanced Armature Driver RAB-32257-000 Single Full-range Frequency Response and THD Impedance and Saturation SPL Testing Conditions Typical Performance at 1kHz using 100mV rms drive signal Impedance 46Ohms —— IEC60318-4 (711) coupler with DB2012 adapter Sensitivity to 100mV 103 ••••• G.R.A.S. 43BA-2 (0.4cc) with baffle adapter Sensitivity to 1mW 110 dB SPL —— THD Max SPLa 118 dB SPL THD at 94dB SPL 0.3 % THD at 100dB SPL 0.5 % dB SPL Footnotes: a SPL at 10% THD Note: • Ask about custom assembly options (lead wires, customer-specified materials, etc.) • To prevent heat damage, follow soldering guidelines in application note AN13 (knowles.com) • Measurement data for reference only. Refer to model specification for full dimensions and performance. Ordering Information: Model Number: RAB-32257-000 knowles.com Phone: (630) 250-5100 Fax: (630) 250-0575 [email protected] Knowles 1151 Maplewood Drive Itasca, Illinois 60143