Kurt used this throughout the European tour in 1989. This is not his amp and it was owned by Gary Thorstensen from the band Tad. (notice in the image how there is no guitar plugged into the Fender Twin Reverb)

A vintage three-switch V-4B was used for Songs for the Deaf, as mentioned by Eric Valentine in this September 14, 2019 "Making Records with Eric Valentine" video at 30:45. The amp is shown in an October 29, 2001 photo (pictured) at 31:38.

So then, there's the main guitar and this was sort of an interesting moment in the guitar recording on the project because we had been using a bunch of crazy stuff, you know? Josh was primarily into using bass amps for his guitars and so we used these Ampeg V-4Bs that he brought in. That's what was used when we were tracking the band, tracking the basics with the band. And then we took this trip to Black Market Music and we got a bunch of just crazy, shitty old transistor Peavey amps. So they're like these Peavey Musician amps and stuff like that. I have some pictures that I can show you of the amps that illustrate that. [shows October 29, 2001 photo] So this is one of the miking setups, this was after... There was a moment when we had to leave Barefoot and go to another studio called The Site (...) So, these pictures are from that part of the session. This miking setup was probably used for the overdub guitar that you're gonna hear on this song ["No One Knows"]. But this right here, this is the V-4B. This is another Ampeg amp, this is a VT-40... and you can see it peekin' through, this is one o' these shitty Peavey transistor amps that we bought.

In an interview conducted by Rick Beato titled "In the Room with Aerosmith's Joe Perry & Brad Whitford," Joe Perry discusses using Ampeg V-4B amplifiers in the studio because the Rolling Stones were using them. This conversation occurs around the 14:00 mark.

In this live photo from Peter Hook and the Light’s official Instagram account from a gig at Scarborough Spa on May 10, 2025, Peter is playing through an Ampeg V-4B

Used with Kyuss and Queens of The Stone Age

Juan used the V4B on the MONO Live Jam with Isaiah Mitchel.

Clay Parton is associated with the Ampeg V-4B bass amplifier head, as seen on the album cover for "What You’re Doing To Me," although the amplifier depicted is actually an Ampeg V-9.

In an interview with Rick Beato, Brad Whitford mentioned around the 14-minute mark that they had to use Ampeg V-4B amplifiers in the studio because "the Stones were using them."

In this video we can see tha Ampeg Stacks Basses model Ampeg V-4B Bass Head Bundle.

"Checking out the new @ampeg V-4B. Creamy tube goodness!"

Conor Deegan III is confirmed to use the Ampeg V-4B Reissue bass head, as it can be clearly identified in live performance footage from the Romance era, including clips from Reading and Leeds 2024 and Glastonbury 2024, as provided by BBC Music. The reissue model is distinguishable by its smaller form factor and updated look compared to the original, as well as specific features such as two inputs, one channel, three rocker switches, five knobs, and a green indicator LED positioned between the standby and power switches.

"The studio had an Ampeg V4B and I used it for the bass. We also used one of those old Fender amps [Pro Reverb] with a 15" speaker. We turned the bass all the way up and the treble all the way down, and it wasn’t on very loud."