Ampeg B-15 Musical Instrument Amplifier User Manual


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Heritage B-15 Bass Amplifier
Heritage B-15 Bass Amplifier Heritage B-15 Bass Amplifier
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HERITAGE B-15 TECHNICAL SPECIFICATIONS
Preamp Tube 3 x 6SL7 (N.O.S. JAN Philips ECG 6188)
Power Amp Tube 2 x 6L6GC
RectifierTube 1x5AR4/GZ34Soruseroptional1x5U4G
Two channels
1964 channel is based upon the 1964 B-15NC Preamp Circuit
Twoinputs Input1is0dB,Input2is–15dB
EQ BaxandallBass+/–10dB@40Hz
 BaxandallTreble+/–18dB@5kHz
1966 channel is based upon the 1966 B-15NF Preamp Circuit
Twoinputs Input1is0dB,Input2is–15dB
EQ BaxandallBass+/–11dB@40Hz
 BaxandallTreble+18/–30dB@5kHz
Power Tube Bias
1964 Cathode per 1964 era B-15NC
1966 Fixed per 1966 era B-15NF
Output Power Rating (8 or 4
)
1964Bias 25wattsrms@5%THD
1966Bias 30wattsrms@5%THD
ExtAmpI/OBus 1.25Vrms(+4dBu)@amplifieroutputclip,
unbalanced bus connection, post volume controls
Speaker Outputs 1 x 8
(Heritage B-15 cabinet)
2 x 4
(One 4 cabinet or two 8
cabinets; i.e. Heritage B-15 cabinet plus 8
extension cabinet)
Speaker Specs Custom-designed 15” Eminence driver
Die-cast aluminum frame
109 oz ceramic magnet
4”VoiceCoil
Aluminum dust cover
400W power rating
Made in the U.S.A.
Cabinet Construction Highest quality Baltic Birch, solid Poplar and
featuring dovetail box joint construction
Size (H x W x D) with dolly 27 in/686 mm x 21 in/533 mm x 14 in/356 mm
Weight with dolly 96 lb/43.5 kg (approximately)
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