Ampeg V-4B Bass Amplifier Head (100 Watts)

Half the weight of an SVT head, this reissue of the legendary Ampeg V-4B bass head cranks 100 watts of all-tube power with all the rich tone of the original.

$1,599.99

  • 18 x  
  • 12 x  
    $133.33
  • 8 x  
    $200.00
Overall User Ratings (based on 7 ratings)
  • Overall:
    5 out of 5 stars
  • Sound:
    5 out of 5 stars
  • Features:
    4.5 out of 5 stars
  • Ease of Use:
    5 out of 5 stars
  • Quality:
    4.5 out of 5 stars
  • Value:
    4.5 out of 5 stars
  • Manufacturer Support:
    4.5 out of 5 stars
  • The Wow Factor:
    4.5 out of 5 stars
Overall: 5 out of 5 stars
(7) (see rating details)
Submitted October 16, 2017 by Shevin Mycon in Mukilteo, WA

"Doom guitarist should rejoice"

Overall: 5 out of 5 stars
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Verified Customer zZounds has verified that this reviewer made a purchase from us.
Ive had this amp for a few months with the intention of running guitar it easily does it. Clean is loud but not overbearing like most high gain guitar amps. Amp takes pedals like a dream. This amp is super loud wether bass or guitar the tone is there at loud volume however if you intend to record quiter it needs a little dial in here and there but not much at all. Im running it through a 4x12 8 ohm cab with celestion g12t-70s pretty good combo with any celestion but so far i have the tone ive been searching for forever. Anyone looking for a powerfull clean amp and running low tuned guitars (B or lower) should definitely try this amp.

Musical Background:

4 years on guitar 8 years as a musician. In a doom metal band

Musical Style:

Metal Doom Stoner sludge
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Submitted December 31, 2019 by John Davis in Memphis, TN

"Nothing like TUBES!"

Overall: 5 out of 5 stars
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Verified Customer zZounds has verified that this reviewer made a purchase from us.
I got this to go with my Ampeg 810E Classic and/or my Ampeg 410 HLF Heritage Cabs. I've used it on three gigs so far and it blows me away! On 12/28 my band opened for Every Mother's Nightmare and I got to open her up a bit and it killed! Don't let 100 Watts fool you, it's plenty loud and growls like a pissed off bear! TUBES!!!! My other amps are, Ampeg SVT-7Pro, SVT-350H and MESA Subway D800. I'll probably save the V4B for gigs with original bands and such.....

Musical Background:

Pro Bass player, started playing bass in 1978

Musical Style:

I'm a Rock bassist that can be swayed by cash!
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Submitted April 1, 2014 by phil n in canastota, NY

"great amp"

Overall: 4.5 out of 5 stars
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this tube amp sounds just like an ampeg should.It's a loud 100 watts.I've gigged it 3 times now and it seems to be improving each time.I went from 575 watts ss to this and was worried it couldn't keep up but it does in spades.I play a 5 string Am standard p bass with 2 TL 606 15 cabinets loaded with eminence drivers.

Musical Background:

playing in bands 35 yrs

Musical Style:

modern/dance/classic rock
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Submitted November 4, 2013 by Scott C in Roseville, CA

"V4-B!!"

Overall: 5 out of 5 stars
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Verified Customer zZounds has verified that this reviewer made a purchase from us.
I was really excited to see Ampeg come out with a re-issue of this great head, so of course I had to jump at the chance to get one. After playing through it over the last month I can say that it is everything I was hoping for. Great SVT tube tone, but with half the weight of my full size SVT Classic head. And even though it is less powerful than my SVT classic (100w compared to 300w) it can get plenty loud.
Sound
The sound is SVT quality all the way. For those who love SVT tube tone, this has it in spades. And even though it is 1/3 the wattage of the 300w SVT, it can get plently loud, believe me. However, because of the lower wattage, and the updated controls (the new V4-B has a gain control), I can get that awesome cranked SVT grind at much lower volume levels.
Features
The V4-B is about half the weight of my SVT Classic (which makes it much easier to move around), and is rated at 100 watts, about a third of the SVT Classic. Although cosmetically, it is more of a match for the SVT AV cab, or the newly available 112 and 212 cabs, it still looks great sitting on my SVT 610 HLF Cab. I would like to see a V4-B in the Classic black cosmetics to match better, but it's close enough, and still looks great. Ampeg has updated the control panel features a bit, which is a good thing in my opinion. Instead of the original identical dual inputs, there is one regular, and one -15 dB for active basses. Also, instead of dual volume controls, there is gain and volume, which enables the player to get that SVT- like grind without having to max out the volume, a good thing, definitely. The rest is about the same; ultra-hi, ultra-lo, and 3-freqency mid selector rocker switches above a three-band eq. which gives an ample amount of tone control. The back of the amp now has a balanced line out with ground lift which the original didn't have, and it has the usual pre-amp, and slaves outs, and power amp in. There is also 5 speaker outs for any speaker configuration you may have. I wish it had a speak-on connector, though, which is my preference over that 1/4" jack connections. However, the lack of a speak-on is probably because it's a 100w amp, rather than 300w or above, when it's more usual to see speak-ons. Another thing to note is that this amp also lacks a cooling fan, which means it is dead quiet when turned on, which can be great in a recording environment. The chassis of the amp can also get quite hot after a few minutes of operation, though; this doesn't seem to be a problem, but it's something to be aware of. There are no extra's like overdrive, etc. but the tone of the amp really makes up for any lack of features, in my opinion. You can use pedals for any other features you may want.
Ease of Use
The controls are pretty straight-forward and simple (which I like), similar to an SVT Classic; you can get your preferred tone very quickly.
Quality
Unlike the original V4-B, although designed in the USA, this new one is manufactured in China. I know this poses a problem for some who think only American made Ampegs are any good. Although, I would love to see Ampeg go American in their manufacturing again, I think they are doing an overall good job in maintaining the quality control with the Chinese made products. All the Ampeg products I now own (I own quite a few) were made in either Korea or China, and the quality level and control is very good, and they've performed flawlessy for me. It's amusing to me to hear people blasting Ampeg for it's Chinese manufacturing, and yet go out and get the latest Chinese made Apple product without batting an eye! Granted, not everything made in China is great, just like not everything made in America is great. So far, though, I've been pleased with the Ampegs made there. The V4-B appears to be a quality, well-made product, and has performed flawlessly for me in the short time I've had it. And based on what I've experienced with other Ampeg products, I expect it will continue to be great for a long time to come.
Value
I think this Ampeg is a good value for what it is: an all tube tone box, a veritable little brother to the SVT VR or Classic. It appears to be high quality. Some may feel it's priced too high for a Chinese-made product, but I think if it were made in America, it would be priced a lot higher. So as long as the quality control is there, I feel the product is good value.
Manufacturer Support
I've called Ampeg tech support for different questions about their products, and I've always found them to be very responsive and helpful.
The Wow Factor
Great Ampeg vintage sound and vibe...wow!!

Musical Background:

Playing bass for 5 years, mostly jam at home.

Musical Style:

Mostly rock, some blues
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Submitted March 6, 2022 by Gregory S in Elgin, IL

"Fantastic Amplifier"

Overall: 5 out of 5 stars
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Verified Customer zZounds has verified that this reviewer made a purchase from us.
I am extremely happy with this purchase. The amp has a wide sonic bandwidth. It goes deep & the highs are smooth. The mids grind like you would expect from an Ampeg tube amp. The head only weighs about 40 pounds so its easy to move. On top of my old Ampeg SVT410HLN cab, this thing thumps. I play a Rickenbacker 4003s, Fender Jazz Bass, Gibson NR Thunderbird & Gibson EB5 through this amp & they all sound great. I always get compliments on my tone at gigs from other musicians. Thanks zZounds for hooking me up with a fantastic bass amplifier. It's a little pricey but we'll worth every dollar! Never needed manufacturer support hence the neutral rating there.

Musical Background:

40 years semi pro

Musical Style:

Several genres from folk to metal
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Submitted September 4, 2014 by MG Brown in Dallas, TX

"Ampeg V4B with 212AV cab"

Overall: 5 out of 5 stars
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This amp is nothing but awesome. The amp/cab match is perfect and sound amazing. Best bass amp purchase I've ever made...ever!

Musical Background:

40+ yrs bass player. semi Pro

Musical Style:

Americana
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Submitted May 27, 2015 by Michael Kozemchak in Alexandria, VA

"Lackluster Tone, Lacking Clarity & Punch."

Overall: 3.5 out of 5 stars
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Verified Customer zZounds has verified that this reviewer made a purchase from us.
I'll start by saying that I've tried three of these amps to date. I know I'll be bucking the trend here, but they really leave a lot to be desired in terms of tone. I've gotten better tone out of a $400 Class "D" amp, to be honest. I'm guessing Ampeg figured they could sell these on nostalgia and retro styling alone. Let me clear, I WANTED to like this amp so badly. I had already purchased an SVT-212AV cabinet and really liked the idea of having a tube head to match it. Unfortunately, the V-4B reissue really lacks in the tone department. I've played an American Precision and Precision Bass Deluxe (P/J pickups) and the sound coming out of this amp was just disappointing. Sure, it got loud enough to compete with a drummer and two hard rock guitarists, but I always found myself tweaking the tone in search of definition and clarity. I like a bit of overdrive in my tone, but the grit coming out of the V-4B just sounded farty and generic. The same can be said for the clean tones, as well. Maybe I'm being too picky, but I drove myself crazy trying to dial in a pleasing tone. Bottom line: If retro looks and volume are your thing, then the V-4B might be for you. I would wait, however, until you can find a deal. Do not pay full price for this amp, because it will not hold its resale value. If, on the other, hand, you are looking for more pleasing tones and smoother overdrive, go for a Fender Bassman 100T.

Musical Background:

Semi-Pro

Musical Style:

Rock, Country, Pop, Blues, Reggae, Punk.
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