PEERLESS DA25BG08-04 User Manual [ru]

Tweeter

This D family tweeter features an 4 ohm 1 inch voice coil, a treated Al dome, large rear chamber for low resonant
frequency, and a ferrofluid-cooled ferrite motor. The large motor and rear chamber allow for robust power handling
capacity. The tweeter comes with a faceplate with recessed mounting holes, for easy installation into the desired
application.

MECHANICAL 2D DRAWING

Revision:1.0 | Date: 2015-6-11

DA25BG08-04

SPECIFICATIONS

DC Resistance Revc Ω 3.1 ±5.0% Moving Mass Mms g 0.3
Minimum Impedance Zmin Ω 4.16 ±7.5% Suspension Compliance Cms um/N 137.5
Voice Coil Inductance Le mH 0.01 – Effective Cone Diameter D cm 2.91
Resonant Frequency fs Hz 770.18 15% Effective Piston Area Sd cm2 6.7
Mechanical Q Factor Qms – 1.88 – Equivalent Volume Vas L 0.01
Electrical Q Factor Qes – 0.82 – Motor Force Factor BL T•m 2.38
Total Q Factor Qts – 0.57 – Motor Efficiency Factor β (T•m2)/Ω 1.8
Ratio fs/Qts – 1348.83 – Voice Coil Former Material VCfm – ASV
Half Space Sensitivity dB@2.83V/1m dB 94.71 ±1.01 Voice Coil Inner Diameter VCd mm 25.4
Sensitivity 1W/1m dB 91.9 ±1.01 Gap Height Gh mm 3
Rated Noise Power (IEC 268-5 18.1) P W 100 – Maximum Linear Excursion Xmax mm 0.7
Test Spectrum Bandwidth 12 dB/Oct 2K-20K – Ferrofluid Type FF – APG027n
Energy Bandwidth Product EBP (1/Qes)•fs – Transducer Size – – 1 in

    – Transducer Mass – Kg 0.68

FREQUENCY & IMPEDANCE RESPONSE

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