Get Legendary Tone, With Modern Refinements - The Ampeg V-4B 100W All-Tube Bass Amplifier Head

The Ampeg V-4B 100W All-Tube Bass Head is a remarkable reissue of the legendary 1971 original, delivering the pure tube tone and unmistakable grind that earned the classic a place in bass history. And with a careful selection of modern features, the V-4B provides Ampeg all-tube tone in a portable design perfect for today's players.

An All-Tube Legend

Vintage tone, rocker switches and chassis suspension system

The Beauty of 100 Tube Watts

Pure Ampeg tube tone at half the weight of an SVT head

The Right Choice of Modern Features

Integrated DI, multiple speaker outs and more

SPECIFICATIONS

• Preamp: Tube (2 x 12AX7) 
  
• Driver Tubes: (1 x 12AX7, 1 x 12AU7) 
• Power Amp: (4 x 6L6GC) 
• RMS Power Handling: 100 Watts RMS
• Speaker Outputs: 1 x 8 ohm, 2 x 4 ohm, 2 x 2 ohm
• Tone Controls: 3-band 
• Mid Tone Control: 3-position rocker switch
• Ultra Hi/Lo: Yes 
• -15 dB Input: Yes
• Balanced Line Out: Yes
• Preamp Out / Power Amp In: Yes 
• Slave Output: Yes 

Manufacturer: Ampeg
Model: V4B
SKU: I384589-N-2-WHXE
UPC: 614252309196

We are Chuck Levin's Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.