Ampeg B4R Rackmount Bass Amplifier Head (1000 Watts)

No longer available at zZounds
Input pad. Peak LED input indicator. Defeatable optocoupler limiter.
Straight-ahead power and tone that let you rock like a world class act -- even before the royalty checks roll in. When you're ready to be a player, crank out the powerful textured sound that gets you there. The 4-rack space B-4R is the most powerful in its class at 1000 watts. Introduced in 1999, this powerhouse head gives you everything you need for today's music.

Input Pad

Peak LED Input Indicator

Defeatable Optocoupler Limiter

Pre/Post EQ XLR Line Out

Line Out Level Select

Variable Speed Fan
Dimensions: 19 x 5.6 x 15 in.

Weight: 43 lbs.

Balanced Line Out: Yes

Driver Tubes: n/a

Effects Loop: Yes

Graphic EQ: 9-band

Mid Tone Control: Ultra Mid

Power Amp (Tube or MOSFET): MF

Preamp (Tube or Solid State): SS

RMS Power Output (2 ohms): 2 x 500 Watts
RMS Power Output (4 ohms): 2 x 350 Watts
RMS Power Output (8 ohms): 2 x 200 Watts
RMS Power Output (4 ohms mono-bridged): 1000 Watts
RMS Power Output (8 ohms mono-bridged): 680 Watts

Tone Controls: 3-band

Ultra Low/High Boosts: No
If you have additional warranty questions, please contact the manufacturer at 818-575-3600
(8 ratings)
Submitted November 25, 2008 by a customer from
"More Bang For Your Buck!!!"
I love it. Would not trade for anything elce even a SVT 4 Pro. Oh by the way I used someone's SVT 4 pro last week at a big outside gig. And I could not tell the difference in sound between the B4R and 4 pro. In fact I liked mine a little better to tell you the truth. Do yourself a favor and save the extra cash and go with the B4R. The tube preamp on the 4 pro did not make any difference in tone when cranked up at a gig.
Ampeg tone to the max when paired with SVT 810E.
Everything a gigging musician would need.
Ease of Use
A no brainer for sure.
Very denpendable. I have used it for 2 yrs and over 100 gigs with no problems.
Where elce could you get 1350 max watts @ 4 ohms bridged.
Manufacturer Support
Never needed it.
The Wow Factor
Looks very professional.
Musical Background:
Gigging Musician for 32 years now!!!
Musical Style:
New Rock/Alt., Classic Rock, Jazz, and Blues
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No longer available at zZounds

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