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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

Take A Listen
The Sound of Giants

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

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

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

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.

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

レビュー

Ampeg B-15N Bass Amplifier

C. Lee

2022年10月17日

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

2022年10月13日

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

2022年7月1日

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

2022年6月30日

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

2022年6月9日

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

2022年5月18日

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

2022年4月25日

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

2022年2月3日

Go to plug-in

for great low end highly recommended by Marc Daniel Nelson

S. Collins

2022年1月17日

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

2022年1月13日

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

2022年1月13日

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

2022年1月13日

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

2021年12月29日

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

2021年12月21日

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

2021年12月18日

Great sound

Great sound. Love it

c. maskell

2021年12月10日

Great

Wish I could use it more!

c. maskell

2021年12月10日

Great resource

I use this quite a bit. Either w extra mixing or writing.

I. Selutin

2021年11月30日

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

2021年11月4日

awesome plugin

been looking at it for yrs and finally it makes tracking a bit easier in the cans)))) great value

B. Sweeney

2021年8月21日

Solid

Sounds great and very much like the real thing. Totally solid and totally worth it. Sounds awesome with guitar as well.