JazzAmp 312


Out of stock

Rated 5.00 out of 5 based on 17 customer ratings
(17 customer reviews)

Play Jazz Guitar? Play a Jazz Guitar Amplifier!

The JazzAmp 312 provides clear, rich jazz tone with a deep, resonant presence for guitar or bass, either electric or acoustic. The 312’s cabinet was originally tuned for upright bass, but also quickly became a favorite choice for guitar players with greater volume demands and a wider frequency needs, as with 7-string guitars or solo/duet fingerstyle playing involving heavy walking bass lines.

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About the JazzAmp 312

When we were first developing the JazzAmp for guitar, we also wanted a bass model that was every bit as good for jazz bassists. So we built a prototype and sent it for evaluation to the greatest experts we could think of on the topic of upright bass for jazz – the David Gage shop in NYC. After many conversations and a focus group with everyone there as well as our own R&D, the 12″ bass model of the JazzAmp was born. Now with all the upgrades and features of the 3rd generation JazzAmp, the 312 is an incredibly expressive amp for bass, either electric or upright, and has the frequency spectrum coverage to make it a great amplifier solution for anything from stage piano to electric violin.

Features and Specifications

The JazzAmp 312 features an Eminence Beta speaker and a defeat-able Eminence tweeter for an even, full range response in a cabinet designed to handle the low end of an upright bass yet maintain high end complexities necessary for guitar or other instruments.  The Beta speaker gives you a warm, dark and mellow tone and the tweeter creates a high frequency dimension that sparkles and really brings out acoustic qualities of your guitar, and will add an acoustic quality to your solid body guitars or EUB’s.

The feature set on the 312 includes an input gain control along with the 1/4″/XLR phantom powered combo jack to accommodate almost any pickup system. The 5-band EQ offers the ability to adjust the amplifier to the room without messing with the original tone of the instrument. There is also an extension speaker output, FX loop, tweeter defeat switch, balanced XLR line out and a headphone jack.

Tech specs:

• 120 watts
• Input Gain Control
• Bright switch
• 5 band graphic EQ
• Reverb
• 48v phantom powered XLR/1/4″ combo input
• Balanced XLR line out (post EQ and reverb)
• Eminence Beta 12 speaker with ASD1001 tweeter
• TRS send/return FX loop
• Ext. Speaker out
• Headphone Jack

Additional information

Weight 40 lbs
Dimensions 17 x 18 x 19 in

Video Demos

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User Manual

JazzAmp Owners Manual

17 reviews for JazzAmp 312

  1. Rated 5 out of 5

    Gary Granger

    I purchased my Henriksen 112 JazzAmp around 4 years ago. It has the 10K control and I think the newer models have refined this area of the tone stack. I have used this amp routinely playing in a jazz and blues trio at a restaurant and in a classic western swing group using a Collings Eastside LC Deluxe archtop. Getting a pure jazz tone is as simple as turning the amp on and plugging in. Adjusting EQ for the stage volume and room size takes seconds. I also have used my pedals and dialed in killer blues, fusion, funk and rock tones with this amp. The low end stays tight and the tweeter lets you hear the nice upper partials of round wound strings easily if want them in your sound. I still love my Fender Bassman but this amp really can cover a lot of ground!

  2. Rated 5 out of 5


    I’ve had this amp for about three weeks and I can unconditionally say that it is the cleanest jazz amp I have ever played. It’s definitely that most versatile amp that I own, with the 5 level equalizer, you can dial-in your sound with whatever guitar you’re playing. I’ve played my Telecaster, my jazz archtop, a thin hollowbody, and a couple other hardbodies through it and with a bit of tweaking got the sound I like. My playing experience extends over 50 years, and I have a few amps (predominately Fender tube), and while I’m not getting rid of my ’65 Deluxe Reverb, my Henriksen 312 is now my favorite.

  3. Rated 5 out of 5


    Mam Henriksena już ładnych parę lat. Wzmacniacz sprawuje się bardzo dobrze. Nie miałem żadnych awarii. Dorobiłem do niego kolumnę na głośniku 12 calowym i przy większym pomieszczeniu bardzo się przydaje. Być może kiedyś zakupię jeszcze JazzAmp 312. Przypomina mi Polytona. bardzo ciekaw jestem, czy brzmienie podobne. Dzięki wielkie za fajny jazzowy sprzęt. pozdrawiam z Polski.

  4. Rated 5 out of 5

    Paul DeWeese

    These jazz guitar amps are wonderful. There is a reason for all the high reviews! As a picky guitarist, not just any amp will do. This satisfies the audiophile in me, for sure. This produces buttery smooth tones. I simply love playing with this amp!

  5. Rated 5 out of 5

    Your Name

    I’m pretty persnickety about my tone, so I fully expected to spend at least 30 minutes tweaking the EQ on these jazz guitar amps before I was satisfied. But I was impressed with the JazzAmp’s sound as soon as I plucked those first few notes. It’s warm, full, but clearly defined. I had to do a little meddling, but not nearly as much as I expected.

  6. Rated 5 out of 5


    I like this jazz guitar amp over its smaller cousin because it gives you a bit better response on the low end. The tone is rich and warm throughout, but especially with the bass. It can also get a bit louder than the smaller version, so it’s good for bigger bands.

  7. Rated 5 out of 5

    Chris Hesketh

    Firstly, congratulations to the creators of this amp. Henriksen have done something special here. I have had, (and still own), many jazz guitar/bass amps, (Polytone, Roland, AER etc etc). All good, but none really do the jazz job perfectly. A year ago I began to hunt for an upgrade, and began researching/trying the current offerings from all recognised purveyors of amps recommended for jazz guitar.

    After repeated disappointments with both well-known and specialist brands, I tried the Henriksen Jazzamps. They are beyond fantastic, and in my humble opinion, there is nothing out there today that comes even close to this for a jazz guitarist. They do not sound quite like anything else I tried – at last, something made for us jazzers that meets all expectations…. I recommend the amp without reservation or hesitation. (I settled on the Henriksen 112 for the extra woof it gives. It weighs a little more than the 110, but is still very gig-portable).

    To all fellow jazzers – don’t think twice, just buy the amp immediately – you will not regret it! The fat, clear sound simply blows away all competitors. (Just watch out for your double bass player who will want to steal it from you).

    Thanks Henriksen. Great job.

  8. Rated 5 out of 5


    This is a nice and versatile jazz guitar amp that works equally well with my upright bass. A lot of bass amps give uprights kind of a tinny tone, but the JazzAmp is warm and full, even on notes below 30hz. I also like the jazz amp’s EQ, as it makes it really easy to customize my bass’s tone.

  9. Rated 5 out of 5

    Eric Peter

    I play a seven string Benedetto Bucky Pizzarelli and use a lot of walking bass. The bottom is rich and full and the top is even better. No twang or muffled high end! Very cool.

  10. Rated 5 out of 5

    Gerry Beaudoin

    Henriksen jazz amps are simply the best. Through all my years of performing and recording jazz guitar I have always searched for an amp that gives me clarity of tone and my sound” no matter what the playing or performing situation. In Henriksen I have found that amp. Plenty of power in a light weight package for blues gigs with J.Geils or guitar duos with Bucky Pizzarelli or Howard Alden. It also reproduces the sound of my 7-string with punch and clarity as well as lots of bottom end. Once you try a Henriksen all your other amps will go in your local want ad.””enriksen jazz amps are simply the best. Through all my years of performing and recording jazz guitar I have always searched for an amp that gives me clarity of tone and ” my sound” no matter what the playing or performing situation. In Henriksen I have found that amp. Plenty of power in a light weight package for blues gigs with J.Geils or guitar duos with Bucky Pizzarelli or Howard Alden. It “”nriksen jazz amps are simply the best. Through all my years of performing and recording jazz guitar I have always searched for an amp that gives me clarity of tone and ” my sound” no matter what the playing or performing situa””riksen jazz amps are simply the best. Through all my year”

  11. Rated 5 out of 5

    Glenn Shepheard

    Just to let you know that I purchased the 112 from Foulds Music. I have gigged with it a couple of times so far and I’m as impressed as I thought I’d be. Great warm sound, loads of power, a real breeze to set up. Couldn’t wish for more (except George Benson’s hands maybe) Fantastic!
    Thanks very much indeed.

  12. Rated 5 out of 5

    Skip Moy

    A Henriksen JazzAmp 112 which started out as a loaner amp for a concert in Shenzhen China, wound up being selected to handle acoustic bass amp duties for Japanese artist Lisa Ono on her recent 2009 Winter concert tour of China. The tour which started late November 2009 to January 2010 spanned several cities in China including:Shenzhen, Guangzhou, Shanghai, Beijing, Hangzhou, Nanjing, Chongqing, and shenzhen again.During the long trek, the Jazz amp was packed (unboxed) into countless cars, taxis, vans and trucks. It also travelled by train, buses and airplanes to each destination, often checked in as excess luggage with the band’s equipment. Upon its return home to Hong Kong, the amp was plugged in and worked flawlessly. The Henriksen Jazz Amp 112 works great for electric and upright Acoustic bass, archtop guitarand is one tough amp!

  13. Rated 5 out of 5

    Chuck Haarhues

    THANKS!!! This is the best amp for jazz guitar that I have ever played through.

  14. Rated 5 out of 5


    This little jazz guitar amp really hums. For such a small thing, the jazz guitar amplifier has a nice, roomy low end that really fills out the clear treble. But if the jazz guitar amp doesn’t sound like you want it to, the graphic EQ and minimal effects can get you the tone you desire.

  15. Rated 5 out of 5

    Jerry Boynton

    I wanted to write and let you know that I am more than delighted with the JazzAmp 112 I purchased from you recently. I have played the amp in my home studio and last night took it to a recording session with the Boulder Big Band (22 piece group). It was beyond my expectations. The sound was crisp and on the mark. The tone I got from my guitar never sounded so good. It was wonderful to play my big ES-165 and not be fighting feedback throughout the session. After dialing out the unwanted frequencies I was in heaven. I have no idea why I waited so long to purchase one of your amps. I will still keep my cherished tube amps but this amp is a jewel when it comes to reproducing the sound of the jazz guitar. I can’t tell you how much I look forward to using it from here out. It’s certainly the cleanest and fullest sounding jazz guitar amps I’ve ever played.

  16. Rated 5 out of 5

    John Riemer

    I love the amp…I use a ’62 Gibson Johnny Smith and a Heritage Eagle with Old DeArmond single coil pickups…Absolutely perfect voicing for what I want…set all the controls at mid point and go. I am an old fart (67), playing guitar for 55 years …so my comments are heartfelt, backed by dozens of bad amp experiences.

  17. Rated 5 out of 5

    Andy Cottle

    Just wanted to drop a line to say that the amp I ordered for my son arrived today. I’ll be dropping it off with him tomorrow, but of course I couldn’t resist putting it through its paces. All I can say is wow! What an inspiring piece of gear. Of course it sounds great with a jazz box, but I even hooked up a strat with an overdrive pedal (Barber LTD) and It just killed! I’ve been a tube amp guy my whole life. I love great tube amps, but my mind is forever changed about the possibilities for solid state guitar amps. I would love to try the blues model sometime(I may just have to get one of these for myself). Great work on this amp. Sorry to gush, but I can’t tell you how pleased I am. My son is going to love this with his Heritage Kenny Burrell jazz box. Thanks again.

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