Ampeg® B-15N Bass Amplifier
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The iconic bass amp sound of the ’60s and ’70s, exclusively for UAD-2 and Apollo.
The Ampeg B-15 bass amp defined the sound of recorded electric bass. From Motown sides with James Jamerson to classic Stax records with Donald “Duck” Dunn, this 30-watt, 1x15, all-tube brute oozes character — delivering a warm and fat fundamental note that laid the foundation for ’60s and ’70s rock, funk, and soul.
Developed by Brainworx, the Ampeg B-15N Bass Amplifier plug-in perfectly emulates the circuitry, tone stack, and iconic thump of Ampeg’s limited-edition Heritage B-15N bass amp — exclusively for UAD-2 hardware and
Apollo interfaces.Now You Can:
Track and reamp with legendary all-tube, B-15 tone — from jazzy clean to warm overdrive to heavy distortion
Harness two flavors of the iconic B-15 circuit — 1964 and 1966 — each with switchable bias controls for further tweaking
Hone your tone with the robust and meticulously emulated two-band Baxandall EQ
Audition 42 separate high-end recording chains, featuring four different cabinets and multiple classic microphones
Take A Listen
The Sound of Giants
The Ampeg B-15N Bass Amplifier plug-in flawlessly captures the original hardware’s dual 6L6-powered circuit as well as its simple, ultra-musical two-band Baxandall EQ. Simply use the Volume control to dial in rich, smoky tones, perfect for jazz and soul, or inch the Volume up for a fat guttural growl that teams with harmonics and character.
Two Channels, Tons of Tones
An evolution of the classic B-15 recipe, the B-15N sports two channels — 1964 and 1966 — each offering two flavors of iconic tones. The 1964 side gives you a 25-watt cathode biased circuit, whereas the 1966 input features a 30-watt, fixed bias circuit. Sonically, the 1964 side is spongier and breaks up earlier, while the 1966 input gives you a tad more headroom and midrange beef. Additionally, you can toggle between selectable bias modes, yielding even more tones and textures.
B-15N FX Rack
The B-15N plug-in provides additional control over your sound through the inclusion of the Brainworx FX Rack. It features a Noise Gate to control low-end buzz, switchable high-pass and low-pass filters to provide even more tonal options, and a Power Soak circuit that allows you to dial in as much overdrive as you want, without having to crank the output gain.
Unison™ Technology for Apollo Interfaces
Harnessing UA’s groundbreaking Unison technology, the Ampeg B-15N plug-in gives you the impedance, gain staging, and circuit behaviors that have contributed to making this iconic bass combo one of the most recorded bass amps in history.
Customer Reviews
S. Collins
January 17, 2022
Classic Ampeg Portaflex tone
My brother had a B-12 back in the 70's that had great tone. This B-15N plugin is a faithful reproduction. For me it's an alternative to the GK800RB when I'm looking for a deeper, more...
Read MoreE. Koch
January 13, 2022
64' high, 66' bias
if i could just get a little more gain, a phase plug for the 15" alnico, and a little lower noise floor; it would be absolutely perfect.....
Read MoreE. Koch
January 13, 2022
Why Doesn't Anyone Make A 15" Guitar Speaker With A Phase Plug ?
the cab and Cone Modes on the 15" alnico are killer .... and the power amp on this is stellar when driven hard ... makes me want to try to find one of these things, hot rod pre-amp,...
Read MoreE. Koch
January 13, 2022
i keep going back to this amp ..
it's a staple in my studio, and i play synth bass.. i use this for rhythm guitar work, *But I Wish The Noise Floor Was Lower* ... time to get hotter pickups i guess ..... i absolutely love...
Read MoreS. Harris
December 29, 2021
Hefty!
got this to reamp some direct bass recordings and use on some sampled bass instruments after comparing it to another software bass amp i've been using for years. the B-15 totally knicked...
Read MoreM. Brando
December 21, 2021
Great Amp Sim!
I think is one of the better bass Amp Sim on the market! In the beginning you have to try and try but after a while start to emerge...
Read More -
Key Features
The classic tone of the studio staple Ampeg B-15N bass amp used on countless hit recordings
2 distinct preamp circuits (1964 and 1966) producing two flavors of vintage Ampeg bass sound
Unison™ technology for the tone, touch, and feel of the classic B-15N preamp section
Tone Controls: Baxandall style Bass and Treble (per channel)
42 Recording Chains with multiple speaker cabinets recorded in a state of the art room with stellar gear
Feels like a real amp when played through Apollo's Realtime UAD Processing
Physical input impedance and hands-on control of Gain staging with Unison technology
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Customer Reviews
Ampeg B-15N Bass Amplifier
S. Collins
Classic Ampeg Portaflex tone
My brother had a B-12 back in the 70's that had great tone. This B-15N plugin is a faithful reproduction. For me it's an alternative to the GK800RB when I'm looking for a deeper, more well-rounded classic bass sound for my Jazz bass, which has flat-wound strings.
E. Koch
64' high, 66' bias
if i could just get a little more gain,
a phase plug for the 15" alnico,
and a little lower noise floor; it would be absolutely perfect..E. Koch
Why Doesn't Anyone Make A 15" Guitar Speaker With A Phase Plug ?
the cab and Cone Modes on the 15" alnico are killer .... and the power amp on this is stellar when driven hard ... makes me want to try to find one of these things, hot rod pre-amp, and try to fit a phase plug..
E. Koch
i keep going back to this amp ..
it's a staple in my studio, and i play synth bass..
i use this for rhythm guitar work, *But I Wish The Noise Floor Was Lower* ... time to get hotter pickups i guess ..... i absolutely love the 5U4GB sag on the B-15N
i use the 55' Deluxe for leads, but it's too ratty for backing tracks...that, and the 5Y3GT sag on the Deluxe is almost too mushy for anything else...S. Harris
Hefty!
got this to reamp some direct bass recordings and use on some sampled bass instruments after comparing it to another software bass amp i've been using for years. the B-15 totally knicked that amp out of the park. super sustain, massive bottom end loves to be driven hard!
M. Brando
Great Amp Sim!
I think is one of the better bass Amp Sim on the market! In the beginning you have to try and try but after a while start to emerge really beautiful bass tones out of it Very cool Amp Sim
R. Westlake
Great sound
Great sound. Love it
c. maskell
Great
Wish I could use it more!
c. maskell
Great resource
I use this quite a bit. Either w extra mixing or writing.
I. Selutin
Great amp sim
Love this amp sim. I'm not a professional bass player, I'm a guitar player. But I need a bass guitar in my studio for different projects. So, this amp makes my bass guitar sounds much better, and it makes me play better.
L. Bates
awesome plugin
been looking at it for yrs and finally it makes tracking a bit easier in the cans)))) great value
B. Sweeney
Solid
Sounds great and very much like the real thing. Totally solid and totally worth it. Sounds awesome with guitar as well.
D. Garrido
Amazing!
Really solid!
C. Mayr
Pure Growl
This is the Plugin with this really growl for my Preci and Jazz Bass. Go for it !
C. Bruce
Great
I’m not much for plugin amps but this one I use regularly. I’ve found I’m not the only one who likes it. My teacher at Berklee prefers it himself too.
R. Walsh
Yes, yes, yes
Best bass amp emulator I have ever used. I own a bunch including the Softube Amp Room and the UAD SVT. This is it.
J. Harrison
As good as the real deal
I have an Ampeg B18n at home with an extra extension cab. It’s upstairs with my Fender Rhodes but my UA stuff lives with most of the guitar amps downstairs. I’ve tracked both with my J bass and 60s Gibson EB2D. My B18 is a little noisier but tone is the same without messing with mics
S. Shaw
Versatility wins. Don't forget to try it on Guitar!
Great modern sounding and presets are quick dial-in.
h. lelieveld
Sooo good for my precision.
I was actually quite happy with the unison DI input of the neve 1073. But then I tried this one out. Soooo good. I'm really really happy with my old precision with flatwounds into this amp. I can great get disco, funk and rocksounds. It's quite dirty, but in a good way and it works really well in a mix. So that's it, I have found my sound. Thomastik flatwounds and the UAD B 15.
L. Pauselli
Huge sound
It is another sound respect Ampeg SVTR , so you can choose beetween them, nice the treble knob!
