Pricing and availability

We compare 600+ stores and found this item at 5 stores. Prices updated .

Sweetwater
4.5 (19)
$1,899.99
Guitar Center
4.5 (9)
$1,899.99
Reverb
4.0 (7)
$700.00 11 available Used
zZounds
5.0 (7)
$1,899.99
Thomann
4.9 (57)
$1,444.00 $1,433.00 $11.00 · All time low

Average Price: $1,567

High-end/Boutique

$200

$801+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 4 merchants for "Ampeg V-4B". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

With a rich history dating back to 1971, the Ampeg V-4B is a timeless all-tube bass amplifier head that has stood the test of time, offering 100 watts of pure tube-driven power. This reissue stays true to its vintage roots while integrating modern features that ensure it remains a favorite among bassists today. Designed to deliver classic Ampeg tone, the V-4B is equipped with a robust preamp section featuring 2 x 12AX7 tubes and a power section loaded with 4 x 6L6GCs, ensuring your sound is both bold and detailed.

The intuitive front panel provides a no-nonsense approach with Gain, Bass, Midrange, and Treble EQ controls, complemented by ultra-low and ultra-high boost switches for enhanced tonal flexibility. Its versatile connectivity options include a built-in DI output with a ground lift for seamless integration into any setup, whether you're in the studio or on stage. The V-4B's compatibility with various speaker configurations, thanks to its 2-, 4-, and 8-ohm outputs, offers immense flexibility, allowing you to expand your rig effortlessly.

This iconic amplifier head not only exudes vintage charm with its classic styling and chassis suspension system but also meets the demands of modern-day musicians with its FX loop and slave output features. Whether you're aiming for a clean, punchy tone or a gritty, overdriven sound, the Ampeg V-4B delivers with precision and power.

Key Features:

  • 100-watt all-tube bass amplifier head
  • 2 x 12AX7 preamp tubes, 1 x 12AX7 and 1 x 12AU7 driver tubes, 4 x 6L6GC power amp tubes
  • 3-band EQ with switchable mid frequencies
  • Ultra-low and ultra-high boost controls
  • Built-in DI output with ground lift
  • Configurable speaker outputs: 2-, 4-, 8-ohm
  • Preamp Out and Power Amp In jacks for FX loop
  • Classic Ampeg design with modern enhancements

Owner's manual

Ampeg V-4B User Manual

Product specs

Type Tube
Number of Channels 1
Total Power 100W
EQ 3-band, Lo/Hi Boost Switches
Preamp Tubes 2 x 12AX7
Power Tubes 4 x 6L6GC
Inputs 2 x 1/4"
Outputs 5 x 1/4" (speakers), 1 x XLR, 1 x 1/4" (slave)
Effects Loop Yes
Power Source Standard IEC AC cable
Height 11"
Width 24"
Depth 11"
Weight 41 lbs.

FAQs

What kind of tone can I expect from the Ampeg V-4B Bass Head?

The Ampeg V-4B Bass Head delivers classic Ampeg tones with a warm, rich, and punchy sound, perfect for rock, blues, and jazz. Its all-tube design provides a vintage character with powerful low-end response and clear mids.

Is the Ampeg V-4B suitable for live performances?

Yes, the Ampeg V-4B's 100-watt power output and robust tube design make it ideal for live performances, offering enough volume and presence to cut through a mix on stage.

Does the Ampeg V-4B Bass Head work well with effects pedals?

The Ampeg V-4B includes an effects loop, allowing seamless integration with effects pedals. Its all-tube circuitry ensures that the core tone remains warm and dynamic even with pedals engaged.

How does the Ampeg V-4B handle different speaker cabinets?

The Ampeg V-4B offers multiple speaker outputs, including 5 x 1/4" jacks, making it compatible with various cabinet configurations. It can drive multiple cabinets for a versatile setup.

What is the weight and size of the Ampeg V-4B Bass Head?

The Ampeg V-4B measures 24" in width, 11" in height, and 11" in depth, weighing 41 pounds. Its compact size makes it relatively portable for a tube amp head.

N Stuff Music

N Stuff Music

Ampeg V-4B 100W All-Tube Bass Head

Video thumbnail for Ampeg V-4B 100W All-Tube Bass Head by N Stuff Music

Ampeg V-4B 100W All-Tube Bass Head

N Stuff Music

N Stuff Music

Video thumbnail for Ampeg V-4B All Tube 100 watt Classic Bass Amp Head by Guitar Center

Ampeg V-4B All Tube 100 watt Classic Bass Amp Head

Guitar Center

Guitar Center

Video thumbnail for Ampeg V-4B 100W All-Tube Bass Head - Sound Clips by Ampeg

Ampeg V-4B 100W All-Tube Bass Head - Sound Clips

Ampeg

Ampeg

Video thumbnail for Ampeg V-4B and SVT-810AV - Sound Clips by Ampeg

Ampeg V-4B and SVT-810AV - Sound Clips

Ampeg

Ampeg

Video thumbnail for Ampeg V-4B Teaser by Plugin Alliance

Ampeg V-4B Teaser

Plugin Alliance

Plugin Alliance

Video thumbnail for Avatar B410 + Ampeg V-4B Review by redonKiLaus

Avatar B410 + Ampeg V-4B Review

redonKiLaus

redonKiLaus

Video thumbnail for Ampeg V-4B Reissue First Look and Overview by redonKiLaus

Ampeg V-4B Reissue First Look and Overview

redonKiLaus

redonKiLaus

Video thumbnail for Ampeg V-4B 100W All-Tube Bass Head by POLAR - Music & Pro Audio

Ampeg V-4B 100W All-Tube Bass Head

POLAR - Music & Pro Audio

POLAR - Music & Pro Audio

Video thumbnail for Ampeg: V-4B 100-Watt Tube Bass Head Amplifier by Noisegate

Ampeg: V-4B 100-Watt Tube Bass Head Amplifier

Noisegate

Noisegate

Reviews

PROS

  • Classic Ampeg tube sound, warm and rich harmonics

  • Versatile for both bass and guitar, handles pedals well

  • Powerful output suitable for medium to large gigs

  • Wide sonic bandwidth with deep lows and smooth highs

  • Portable at around 40 pounds, easier to move than larger models

  • Works amazingly with synthesizers for diverse musicians

  • Effective with a variety of basses and guitars, enhancing their tone

  • Impressive volume control, loud without losing quality

  • Positive impact on recorded bass tone quality

  • Durable and reliable for continuous use

CONS

  • Requires regular maintenance due to tube design

  • Can run hot, potentially needing additional cooling solutions

  • Some quality control issues, like improperly mounted tubes

  • Heavy and potentially cumbersome for frequent transport

  • Loudness can be overwhelming in small spaces

  • Some reports of build quality concerns, affecting long-term reliability

  • Generates a lot of heat, which could be a concern in tight spaces

  • Presence of fan noise mentioned, though not universally problematic

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Ampeg V-4B.

Build quality

  • The reissue is 20lbs lighter than the vintage model and fits modern cabs better due to its narrower design.

    Source

User experience

  • Owners report that the 100-watt V-4B reissue is loud enough for most gigs unless playing large stadiums.

    Source
  • Some users found a 2x12 cab insufficient with the V-4B, opting for models like the SVT4PRO with a 410HLF for more power.

    Source
  • Owners often find the 100-watt output sufficient with larger cabs like an 8x10, but potentially lacking when paired with a 4x10 for very loud bands.

    Source

Use cases and applications

  • Users playing with a 6x10 Ampeg cab find the V-4B sufficiently loud for stoner and grunge music styles.

    Source
  • The V-4B serves as an excellent pedal platform for guitar, offering versatile dialing options for various tones.

    Source
  • For guitar use, matching cabinet impedance is crucial; the V-4B supports a maximum of 8 ohms, limiting single 16-ohm 4x12 cab use.

    Source
  • Guitarists find the V-4B maintains a stiff, less spongy sound, with cleans offering a piano-like harmonic bloom.

    Source
  • For live performances, it's noted that engineers often prioritize DI over miking the V-4B, suggesting a preamp/cab sim pedal might be more practical for stage use.

    Source

Comparisons

  • Previous vintage owners note the reissue maintains vintage tone but resolves previous issues like obsolete tubes and excessive weight.

    Source
  • The Ampeg V-4B has a distinct gritty tone, exemplified in Queens of the Stone Age's "Songs for the Deaf."

    Source
  • The V-4B differs from the V4 with a low boost instead of high boost and reverb, making it more bass-focused.

    Source
  • The 90s V4BH is noted to have a rounder, more SVT-like preamp compared to the current reissue, which closely mirrors vintage tones.

    Source

Features and functionality

  • The V-4B has a serial effects loop, effective for time-based effects when the volume is sufficiently high.

    Source
  • The master volume shines when cranked but is less effective at low levels, typical for tube amps.

    Source

Critic Reviews

Ampeg V-4B Review - Premier Guitar

premierguitar.com

Ampeg's V-4B reissue is a modern nod to a classic, delivering vintage vibes with updated features. While it manages to capture the iconic all-tube tone, its lighter design and versatile outputs make it more user-friendly. The amp pairs beautifully with the SVT-212AV cabinet, offering a range of tones from gritty to clean. However, the V-4B's price point might deter some potential buyers. Overall, it brings a versatile sound palette to bassists who appreciate Ampeg's legacy but crave a touch of modernity.

positive

Ampeg V-4B review | Guitar World

guitarworld.com

The Ampeg V-4B reissue delivers a nostalgic, tube-driven experience that appeals to bassists seeking a dynamic and vintage sound. The amp excels with its rich, warm tones and impressive overdrive, making it a joy to play. While it lacks the extensive clean headroom of its SVT counterpart, this 100-watt powerhouse compensates with its portability and versatility. However, its sensitivity at higher volumes requires a bit of a learning curve. Overall, this reissue is a fitting tribute to the original, perfect for those who crave an authentic Ampeg experience without the heft of larger models.

positive
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5.0 out of 5

Based on 2 Reviews and 19 Ratings

5 star
4 star
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1 star
connormclean

I own a modified 1971 V4B, modded to accept KT66 power tubes

I have owned a modified 1971 V4B that has been retubed with KT66 power tubes. The simple, yet versatile control layout and great innate tone make this one of the greatest bass amps of owned to date. The two channels are great for running a wet and dry effect signal as well. The amp is paired with two custom LDS cabs, each fitted 1x15 and 2x6 custom hemp cone speakers made by PMR. Every bass player can find something to love about this amp!

jimmarchi1

commanding

this was the loudest amp I've ever owned... like a louder VT40 without reverb. Not voiced specifically for bass, at least my70s version wasn't. Good bass amp, great guitar amp if you wanted a loud clean sound. A clean sound so commanding it eats a twin for lunch. Only a Hiwatt or Sunn 2000s squeezes more out of 4 power tubes. Slightly different preamp tube compliment than a vt40 so easier to retube as I recall. But pulling 2 power tubes its still louder and cleaner than a vt40 or v2. A beast. I would owner another one.

Artist usage

Add artist
See how Abel Guier uses Ampeg V-4B

Abel Guier

Bassist

Gandhi

...
Verified via YouTube

His gear with his band Gandhi

T

Tim John

Bassist

The Vines

...
Verified via Photo

The amp can be seen behind Tim in this live performance

See how Frode Jacobsen uses Ampeg V-4B

Frode Jacobsen

Bassist, Music Producer

Madrugada

...
Verified via Photo

In a user-uploaded photo, Frode Jacobsen is seen with an Ampeg V-4B bass amplifier head in the background.

See how Alex Bulli uses Ampeg V-4B

Alex Bulli

Bassist

Frankie and The Witch Fingers

...
Verified via reddit

Alex Bulli uses the Ampeg V-4B bass amplifier head, as indicated in multiple Reddit discussions. In a 2019 post on r/guitarpedals, Bulli describes the V-4B as integral to their setup, enhancing the sound alongside a Mr. Black Bass OD pedal. Further comments on r/ToobAmps and r/Bass over the years highlight Bulli's preference for the V-4B, emphasizing its sound quality even in various performance settings ranging from small clubs to large amphitheaters.

See how Thibault Christiaensen uses Ampeg V-4B

Thibault Christiaensen

Singer, Guitarist

Equal Idiots

...
Verified via YouTube

In the video "Equal Idiots - Put My Head In The Ground (live session)" by SABAMofficial, Thibault Christiaensen is seen using the Ampeg V-4B amplifier at the 0:11 mark.

See how Jer Coons uses Ampeg V-4B

Jer Coons

Singer, Guitarist

Madaila

...
Verified via Photo

Featured in this Instagram post by Coons.

@musicofmadaila bass rig upgrade. Thanks @paddydukes for the calzone case. Vintage ampeg v-4b & svt 2x12.

See how Matt Malley uses Ampeg V-4B

Matt Malley

Bassist, Composer

Counting Crows

...
Verified via Ampeg

Listed on Malley's official Ampeg artist page.

Used With

Based on how musicians on Equipboard use Ampeg V-4B, it is most commonly used with the following gear.

1 alternative for Ampeg V-4B, curated by the Equipboard community.

Fender Bassman 100T Amp

$1,564.34

Vintage or Discontinued cheaper alternative

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