All systems go !
All systems go !
DRIVE UNITS BY MANUFACTURER:
BC20SC15-04
DISCONTINUED. Possible alternative (slightly larger) : Peerless BC25SC06-04.
From the BC range, this tweeter features a damped fabric dome for smooth frequency response performance and ferrofluid in the gap of the NdFeB motor, providing enhanced cooling of the voice coil. Compact horn loaded faceplate with recessed mounting holes. Supplied complete with a sealing gasket which helps reduce vibration between baffle and driver.
A full datasheet can be downloaded from the bottom of this page.
Resonant frequency (fs) | 1579 Hz | Nominal impedance (Zn) | 4 Ω |
Effective diaphragm diameter | 19 mm | DC resistance (Re) | 3.11 Ω |
Ferrofluid ? Y/N | Yes | RMS power handling | 80 W |
Recommended crossover | 2.5 kHz 18dB | Faceplate diameter | 66.3 mm |
Sensitivity (2.83V/1m) | 86.7 dB | Cutout hole diameter | 38.8 mm |
Peerless by Tymphany
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Wow, just had my Mission 753 upgrades of crossover and also tweeters. What a difference it’s made! The high frequencies are more refined and OMG, the separation and richness of mud and bass if awesome…..much thanks to Willy’s for giving my 753’s a new life 😀😀
Excellent advice from will as usual and exactly what I wanted. These have improved the sound of my current speakers and taken them to another level. Sounds superb I can hear tonal difference's between things that I never heard before. Superb bass drivers dig so deep.
As usual will has been outstanding.
Brilliant to deal with always helpful and gives great service.
What a brilliant capacitor, from first listen exceptional clarity and depth. Bargain will be buying more.
Swapped out the 30 yr old AlCap capacitors for the Audyn Q4 on Wills recommendation (along with a ferrofluid change). What a difference, added so much more definition and clarity. Very impressed. Audyns are a fair bit bigger size wise but fitted easily enough on the board and the access aperture on the TDL Studio 1's.
Good quality, fast postage, perfect! Thanks