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.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
J. Payne
November 27, 2023
Fabulous spongy bass tones
Tube amps give a certain sag and bounciness to bass that's hard to replicate, but this amp sim DOES IT. I'm a big P-bass + flats kinda guy, and for that sound, this amp just kills. I like...
Read MoreJ. Sutherland
November 18, 2023
Fat Bass Tone
Really love the way this sounds. Nice bass tone that sits great in the mix.
Read MoreT. Poe
August 9, 2023
THE Bass Amp for Studio Sessions
Fender Precision Bass + Flatwounds + this plug-in gives you all the Motown mojo. Absolutely clinical application for studio sessions. I have a p bass with rounds, a p bass with flats, and...
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
J. Payne
Fabulous spongy bass tones
Tube amps give a certain sag and bounciness to bass that's hard to replicate, but this amp sim DOES IT. I'm a big P-bass + flats kinda guy, and for that sound, this amp just kills. I like the VR for bigger modern tones, but the B15N is something special.
As with all the UAD amp sims, make sure it's on a unison preamp spot, it actually makes the sim feel real.J. Sutherland
Fat Bass Tone
Really love the way this sounds. Nice bass tone that sits great in the mix.
M. Kozlowsky
Good plugin
T. Poe
THE Bass Amp for Studio Sessions
Fender Precision Bass + Flatwounds + this plug-in gives you all the Motown mojo. Absolutely clinical application for studio sessions. I have a p bass with rounds, a p bass with flats, and all you need is this + your favorite pedals for grit. Outstanding.
B. Straburzynski
super
its grate !!!
A. Rosario
Good ole tube sound!
Good tube bass saturation!
s. mcaulay
bread and butter bass FTW
I pretty much turn this thing on this setting and track with it as is. Perfectly sits in the mix
H. Fivelsdal
The sound I was looking for.
The Ampeg B-15N helps me to get that characteristic growl from my P bass. It's very easy to get good sounds from this plug-in.
M. Ross
Fabulous
Sounds just like the real thing!!
U. Audio Account
Great emulation.
I got this amp and the UA version sounds great.
s. Faubert
The best bass amp plug in
Great discover always a great sound
C. Lee
Best of all the Bass Amp Plugins!
The B-15 is the best bass amp plug-in I’ve found yet and I own all UA’s bass sims and this one is by far the best.
S. Berry
killer classic tone
Tried all the bass plugins before purchasing and this one's the best. It's versatile, realistic, and I can get multiple classic bass tones whereas other plugins are more limited. Sounds great with some dirt on it too!
T. Kaas
The best bass amp plugin there is
I demoed all the bass amp plugins that UAD is offering and this is by far the best one. It's also easy and fast to dial in the perfect tone. It really knocks everything else out of the water!
b. village
The best
I’ve spent a lot of time on bass tone, I’ve played with probably every plugin there is and this one just has “that sound”. It works great with distortion, it can also be super clean, it works great for slapping and it works great for simple walking lines. I haven’t found anything that beats this amp yet. I want to get a real one because of this plugin.
S. Patterelli
The quintessential bass recording amp
I've owned a few B-15 amps over the years and this really is a great recording tool! Sounds great and has many tonal variation options. It always was a classic recording setup to have a DI on the bass and a miked amp.You certainly can do this with this plugin. An added bonus is you can get some interesting overdriven sounds out of a guitar as well. Just like the original amp. Highly recommended....
C. Bremus
Great Sound, totally with it
The B-15N does not disappoint, it is surprisingly flexible because of the cabinet and signal chain options . And it even sounds really great on guitars, you can easily create lo fi and garage sounds with a certain charme to it.
A. Donoghue
Perfect combination with my Pbass
I was surprised how much of a difference using this plugin made to my bass sound. Perfect for achieving that authentic 60s sound.
T. Jux
Go to plug-in
for great low end highly recommended by Marc Daniel Nelson
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.
