Peerless BC25TG15-04 (Vifa HT 250 F/4 Fabric Dome)

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BC25TG15-04

The BC family of tweeters features a damped fabric dome for smooth frequency response performance and ferrofluid in the gap of the ferrite magnet motor,providing enhanced cooling of the voice coil. BC tweeters come with a compact faceplate with recessed mounting holes,complete with sealing gasket which helps reduce vibration between baffle and driver.

Short data

Usage as Tweeter
Power Handling 50 Watt
Impedance 4 Ohm
 
Frequency from 2500 Hz
Max. Frequency 20 kHz
Sound pressure 89.8 dB

Chassis-data

Overall dimensions 104 mm
Baffle cutout 75 mm
Depth (Total) 31 mm
Membrane Material Textile
 
Voice coil Ø 25.4 mm
Voice coil material Aluminium
Air gap height 4 mm
Air gap filling Ferrofluid

Thiele-Small-Parameter

Resonance fs fs: 1128.01 Hz
Mechanical Q Qms: 2.54
Electrical Q Qes: 1.26
Total Q Qts: 0.84
Equivalent Air-Volumen Vas: 0.01 Liter
DC-Resistance Re: 2.99 Ohm
Coil Inductance Le: 0.02 mH
 
Mech. Compliance Cms: 0.0645 mm/N
Moving Mass Mms: 0.3 g
mech. Resistance Rms: 0.671 kg/s-¹
Max. Excursion +/- Xmax: 0.6 mm
BL Product Bl: 2.28 N/A
Membrane Ø Md: 25
Membrane Area Sd: 6.2 cm²
Sound pressure dB: 89.8 SPL

Frequency & Impedance

Technical Dimensions

PDF-Product information

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