Ampeg HERITAGE B-15 - Manual (Page 11)

Heritage B-15 Bass Amplifier Heritage B-15 Bass Amplifier
11
HERITAGE B-15 TECHNICAL SPECIFICATIONS
Preamp Tube 3 x 6SL7
Power Amp Tube 2 x 6L6GC
Rectifier Tube 1 x 5AR4
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.