The Ampeg V4-B Head is an Ampeg amplifier, currently around $1535.60. Close alternatives include the Bergantino Forte-HP Ultra and the Traynor YBA100 Tube Bass Head. It pairs well with the Ashdown Geezer Butler Signature and the Marshall Guv'nor.
Ampeg V4-B Head
Ampeg · amplifier
The Ampeg V4-B is a 100-watt all-tube bass amplifier head using four 6L6 power tubes, originally introduced in 1971 as a lower-wattage alternative to the 300-watt SVT. It shares the SVT preamp circuit in a lighter package, delivering Ampeg's characteristic warm deep low-end, slightly scooped mids, and SVT harmonic richness at volumes more manageable than its larger sibling. At 100 watts it enters power-tube saturation earlier, producing natural tube compression and creamy overdrive when pushed. It suits rock, blues, and studio players who want full SVT character without the weight and maintenance demands of a six-tube power section.
What stands out
“At 100 watts it enters power-tube saturation earlier, producing natural tube compression and creamy overdrive when pushed”
— from the listing
“The V4-B is widely praised as the SVT in a lighter body: the same preamp character and Ampeg tonal DNA at 100 watts , significantly easier to transport and maintain”
— from the community notes
“It enters natural power-tube saturation at lower volumes than the SVT-CL, which suits players who want organic tube breakup at realistic stage levels”
— from the community notes
“It suits rock, blues, and studio players who want full SVT character”
— from the listing
“The four-tube power section still requires biasing and maintenance, though it is simpler than the full SVT”
— from the community notes
- tube
- power tube saturation
- full
- natural
- harmonic richness
- low end
- studio
Good for
- Live
- Studio
Price updated Oct 22, 2026
Genres the Ampeg V4-B Head is commonly used in
- Soul
- Blues
- Alternative Rock
- Rock
- Classic Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Country
cited
Inferred from shared tonal signals, not a stated genre tag.
Pedals that stack with the Ampeg V4-B Head
Ashdown Geezer Butler Signature
Ashdown
26% matchclean platform takes the driveA clean, high-headroom stage takes on dirt it can't generate by itself. (transparent → low gain)
Run Ashdown Geezer Butler Signature into that transparent platform and it finally leans toward low gain
Goes in front of the amp
Marshall Guv'nor
Marshall
25% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (scooped → mid-forward)
Marshall Guv'nor's own voicing points at a clean amp's front end, and Ampeg V4-B Head delivers it
Goes in front of the amp
Colorsound Overdriver
pedal
23% matchclean platform takes the driveA clean, high-headroom stage takes on dirt it can't generate by itself. (transparent → fuzzy)
The Overdriver's transparent, treble-boosted British drive cuts through the V4-B's creamy warmth instead of muddying it.
Goes in front of the amp
TC Electronic Mimiq Doubler
TC Electronic
15% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
TC Electronic Mimiq Doubler's mid-forward voice goes after Ampeg V4-B Head in the signal chain — it's not there to compete with Ampeg V4-B Head's own full character
Goes in front of the amp
Xotic SP Compressor
Xotic
11% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (scooped → mid-forward)
Xotic SP Compressor's own smooth character is the real reason this is worth trying
Goes in front of the amp
Boss RV-5 Digital Reverb
pedal
8% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Put Boss RV-5 Digital Reverb in Ampeg V4-B Head's effects loop, clear of Ampeg V4-B Head's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Sits in the amp's effects loop
Neunaber Wet Mono Reverb Pedal
pedal
7% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Run Neunaber Wet Mono Reverb Pedal in Ampeg V4-B Head's effects loop, clear of Ampeg V4-B Head's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Sits in the amp's effects loop
J. Rockett The Dude V2
J Rockett
tonal matchGoes in front of the amp
Ampeg V4-B Head leans into a clean amp's front end, precisely the platform J. Rockett The Dude V2 wants
Cheaper alternatives
Boutique & premium upgrades
Similar character
See all alternatives to the Ampeg V4-B Head (cheaper + boutique) →
Questions people ask
What are good alternatives to the Ampeg V4-B Head?+
The closest matches in character are the Bergantino Forte-HP Ultra, the Traynor YBA100 Tube Bass Head, the Traynor YBA-200-2. Budget picks: Traynor YBA100 Tube Bass Head, Traynor YBA-200-2. Boutique upgrades: Ampeg SVT-CL, Ampeg All-tube SVT.
What pairs well with the Ampeg V4-B Head?+
Strong matches from rig and tone-complementarity evidence: Ashdown Geezer Butler Signature, Marshall Guv'nor, Colorsound Overdriver — Run Ashdown Geezer Butler Signature into that transparent platform and it finally leans toward low gain.
How much does the Ampeg V4-B Head cost?+
Around $1535.60 (live listing price, updated Oct 22, 2026).