Ampeg B-15 Manual

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Heritage B-15 Bass Amplifier

Heritage B-15 Bass Amplifier Heritage B-15 Bass Amplifier

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)