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Product 481700

Ampeg B-4R Solid State Amp Head

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The Ampeg B-4R Solid State Amp Head is the most powerful amp in its class and it's loaded with the features you need to make today's music. Here's th...Click To Read More About This Product

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OVERVIEW

It's the poor man's version of the SVT-4 Pro and a very impressive amp in its own right.

The Ampeg B-4R Solid State Amp Head is the most powerful amp in its class and it's loaded with the features you need to make today's music. Here's the long list: dependable solid-state circuitry, MOSFET power section, 3 bands of tone with Ultra Mids, 5-position style selector, 9-band graphic, texture tube emulation circuitry, series/parallel effects with blend control, defeatable optocoupler limiters, push button biamp/full range capability, stereo/mono bridge switch, internal 24dB/8va crossover with 100Hz to 1kHz variable point, high/low balance control, mute function, 15 amp circuit breaker, and power to spare.


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Review Snapshot

by PowerReviews
AmpegB-4R Solid State Amp Head
 
4.7

(based on 22 reviews)

Ratings Distribution

  • 5 Stars

     

    (19)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

Most Liked Positive Review

 

Amazing Quality and Sound

I've had my B4 for quite some time now and i have not even looked to find something to replace. I have no reason to. Its powerful sound and tone is ireplaceable and will...Read complete review

I've had my B4 for quite some time now and i have not even looked to find something to replace. I have no reason to. Its powerful sound and tone is ireplaceable and will destroy almost any competition it has. I believe that most of its competetion may come from other heads of the ampeg family. I think it battles strongly with the tubed svt 4 pro. Even though the b4 is not tubed its clarity and house-rumbling sound is just like a tubed amp and can blow you away. I am playing it with an 8x10 ampeg cab with a C-304 Esp bass.. (soon looking to expand to fender deluxe p) Head weighs a good 45lbs and i strongly recommend putting it in a rack-mount case with a korg rackmount tuner. It is worth every penny and deserves all the care it can get. You wanna rumble everything around you... this is the head to do it.

VS

Most Liked Negative Review

 

Big power, weak sound

REALLY flat tone. Thought I'd have some flexability with the 9-band EQ, but sound was without warmth or texture. Played with Fender Jazz and a 15" cabinet.

REALLY flat tone. Thought I'd have some flexability with the 9-band EQ, but sound was without warmth or texture. Played with Fender Jazz and a 15" cabinet.

Reviewed by 22 customers

Displaying reviews 1-20

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(1 of 1 customers found this review helpful)

 
5.0

Excellent amp

By tdphattbass

from okc, ok

About Me Professional Musician

See all my reviews

Pros

  • Best at everything
  • Easy To Use
  • Excellent Sound
  • Good Warmth
  • Portable
  • Powerful

Cons

  • None

Best Uses

  • Events
  • Professional Recording

Comments about Ampeg B-4R Solid State Amp Head:

Best amp ampeg ever built. I have now owned mine for about 12 or 13 years. It is a 1999 model and it just keeps going. No tubes to buy. Have had it cleaned to get some of the dust out from the fan. no problems all the years later and hundreds of shows and hours on both of the b4's that i own.

(1 of 1 customers found this review helpful)

 
5.0

Freakin cool!

By DefectedOKC

from Oklahoma City, Ok

Comments about Ampeg B-4R Solid State Amp Head:

Let me just say, "Wow!" This amp is amazing. I've had mine for over a year now and i've had no problem. I use mine with the Ampeg BXT 410HL and BXT 115HL and it sounds great! I wouldn't play any of my Warwicks through anything else. Ampeg is the only way to go if you want to turn heads when people hear you thump and groove.

(1 of 1 customers found this review helpful)

 
5.0

Work Horse

By Kelam Eillap

from Los Angeles, CA

Comments about Ampeg B-4R Solid State Amp Head:

This head is absolutely amazing. I run it through an SVT-410HLF cab, and have yet to play any venue where it did not have enough volume, or where I wasn't able to adjust the sound to fit the room's accoustics. It is able to take a great deal of abuse, too. Most times I play a show where the sound company brings their own bass rig, I regret not taking at least my own head, if not my full rig.

(1 of 1 customers found this review helpful)

 
5.0

One of the finest Ampeg products avaible.

By Royal187

from Palmyra, Pa

Comments about Ampeg B-4R Solid State Amp Head:

I currenty own the B4R head and I am more than pleased with the product. The graphic EQ always me to control my sound while still delivering a powerful 1000 watt "punch in the face." I would strongly recommend this amp head to any bassist.

(1 of 1 customers found this review helpful)

 
5.0

Best for less

By cismiller

from Phoenix AZ

Comments about Ampeg B-4R Solid State Amp Head:

This amp is the best amp I have ever owned. I hooked this up to my Eden 410xlt 8-ohm cab and it cranks out the most cleanest low-B I have ever heard. Equalizer is the best part about this amp. Pretty much can get the sound and loudness I want either with more bass or treble. I won't say anything less about this amp. I like the way Ampeg designed a button called limit defeat. Won't let you blow your speakers as a safe precaution. Will recommened this amp to the intermediate to pro levels of bassplayers. This amp has it all, power, clean, full-tone control, and multiple hook-ups for speakers. This is the amp to own, besides the Svt-4 pro. A must have. Thanks!

(1 of 1 customers found this review helpful)

 
5.0

Everything you need for todays music and more.

By The Amazing Mr. Brownstar

from Hell

See all my reviews

Comments about Ampeg B-4R Solid State Amp Head:

Calling the B4R "the poor mans version of the SVT 4 Pro" is an insult. The B4R is able to handle whatever music situation you can throw at it. If you are not a fan of tubes and there slow response than the B4R is the last amp you will ever need to buy.

(1 of 1 customers found this review helpful)

 
5.0

Sick

By Xthischarminmanx

from Carmel, NY

See all my reviews

Comments about Ampeg B-4R Solid State Amp Head:

Amazing bass head, I believe it's better than the svt-4 pro.

 
5.0

Review

By mikeb9287

from PA

See all my reviews

Comments about Ampeg B-4R Solid State Amp Head:

Very powerful... nice tones... and a decent amount of things you can play around with for your own personal bass sound. i like the tuner output, i thought it was necessary because your bass should always be in tune for this amp. and since its 45lbs, maybe putting the head in a rack isn't a bad idea... and in the future i hope to add a rackmount tuner and other things to fill up a rack... thanks

 
5.0

ampeg still the best

By Erik-8sEQb

from Wichita Falls, TX

See all my reviews

Comments about Ampeg B-4R Solid State Amp Head:

Ampeg has always been the best when it comes to bass amps but this monster here can really make you sound like a professional. Not only do you get a huge amount of power to use the EQ on it is probably one of the most sensitive I have touched, a tiny adjustment makes a huge change. The price is perfect for this amp and you?ll understand why once you have played on it, Ampeg is still the best without a doubt

 
4.0

a cool piece

By Anonymous

from Undisclosed

Comments about Ampeg B-4R Solid State Amp Head:

This also is a good brick to play off of. Solid and loud. Great when paired with an active bass! Power is its strong point. Listen for yourself & decide, I like it and use it to gig more than my SVT 3 pro.

 
5.0

Great Head

By Fatman50

from Columbus, Ohio

Comments about Ampeg B-4R Solid State Amp Head:

I have been a bassist for about 5 years now and decided to go amp shopping after we jammed out one night, and my small Peavy 115 couldn't hold up to my buddy's JCM 2000 Half Stack. I found the B-4R and decided that it was the right one for me. It has great range, power, and tone, which I was looking for in an amp. I play it through Ampeg's Classic 6x10 ( I didnt have enough fot the 8x10) and I am very pleased with my selection.

 
5.0

Killer

By Requiem88

from Atlanta, GA

Comments about Ampeg B-4R Solid State Amp Head:

I've played through this Amp for a year now. It was a gift from my uncle, who played it previously for four years. In all my time as a bassist, the only competition I've found for this amp is the SVT 4, and even then it's neck and neck. The right amount of power, thump, and all out roar you can get from this amp is absolutely amazing. I strongly reccomend this to any bassist out there looking to stun the crowd with power.

 
5.0

Nothing Better!

By Carcass530

from Sacramento, CA

Comments about Ampeg B-4R Solid State Amp Head:

I've been playing this rig for over a year and it hasn't let me down. Previously I was playing a GK head,which decided to eat itself. After spending the cash for the B4R I haven't looked back. So much versatility, so much power, so much sound. I'm not looking for another amp any time soon. If you have the cash, you best be buying this.

 
5.0

SOLID VERSATILE POWERFUL

By Brills_000

from Windsor N.C.

Comments about Ampeg B-4R Solid State Amp Head:

I've had my B4-R for over a year now and it has never disappointed me. The 9-band EQ allows a lot of versatility. It has plenty of power for most venues, and the sound clarity is great. I recommend using 4 ohm cabinents, though. If you don't, you won't get the full effect from this amp.

 
5.0

Fantastic Amp

By Dave.

from Midwest

See all my reviews

Comments about Ampeg B-4R Solid State Amp Head:

I have had this amp for over 5 years, and have never even looked for another! I have previously owned Peavey, Fender, SWR, and Hartke, This amp blows all of them away!! Plenty of power,great tone control, HUGE bottom end. I play this amp through a custom made JBL and Eminence loaded cab( 15" JBL & 2-10" Eminence). My Fender P-bass never sounded better. I can very strongly recomend this amp to ANYONE.

 
5.0

Never Fails.

By Flo.

from Louisville, KY

Comments about Ampeg B-4R Solid State Amp Head:

It's a good substitute for the SVT-4 PRO and can give you a lot of mileage without hurting your pocket too much. I haven't had any problems with mine since I purchased it 3 years ago new. You can make some thick tones come out of the right cabinet. I have an Ampeg 6 x 10 and an Ampeg 1 x 18 for the low end. You can make any venue rumble with the wattage and it's especially loud with active bass guitars. Good luck.

(0 of 2 customers found this review helpful)

 
1.0

Big power, weak sound

By eric-XweeC

from Eugene, OR

Comments about Ampeg B-4R Solid State Amp Head:

REALLY flat tone. Thought I'd have some flexability with the 9-band EQ, but sound was without warmth or texture. Played with Fender Jazz and a 15" cabinet.

 
5.0

Not to shabby

By Panda =p

from Riverbank, Ca

Comments about Ampeg B-4R Solid State Amp Head:

I've had this machine for months now and its surprised me alot! The 5 different settings and EQ deal a great factor to my sound I'm looking for and has expanded me sound just a bit more. The only thing to this bad boy is it would be best to be pushed through a 610 or 810. The B4R is the top head in the B-series for Ampeg so if your looking to invest on an amzing amp gets this puppy. Its worth it!

 
5.0

Amazing Quality and Sound

By mikeb9287

from PA

See all my reviews

Comments about Ampeg B-4R Solid State Amp Head:

I've had my B4 for quite some time now and i have not even looked to find something to replace. I have no reason to. Its powerful sound and tone is ireplaceable and will destroy almost any competition it has. I believe that most of its competetion may come from other heads of the ampeg family. I think it battles strongly with the tubed svt 4 pro. Even though the b4 is not tubed its clarity and house-rumbling sound is just like a tubed amp and can blow you away. I am playing it with an 8x10 ampeg cab with a C-304 Esp bass.. (soon looking to expand to fender deluxe p) Head weighs a good 45lbs and i strongly recommend putting it in a rack-mount case with a korg rackmount tuner. It is worth every penny and deserves all the care it can get. You wanna rumble everything around you... this is the head to do it.

 
4.0

Glorious

By tmmwt2

from Central Florida

See all my reviews

Comments about Ampeg B-4R Solid State Amp Head:

I have had this head for 6 years and have put it through more than any piece of equipment deserves and it is still running and sounding great. The sounds one can draw from this amp can fit any situation needed. The lone draw back is that the B4R doesn't have quite the warm sound of a tubed amp. Don't let that stop you though especially if you are in a rock or metal band, it generates a glorious deep end roar. If you have the money, I would go with SVT-4 Pro, but the B4R isn't a bad amp at all. It will blow away the competition from almost any other company.

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See All Ampeg Solid State Bass Amplifier Heads
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