A-139, Henriksen Jazz Amp 312 (USA)

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.



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

About the JazzAmps

The founder, Bud Henriksen, after searching for years for a guitar amplifier that sounded the way he thought it should for jazz guitar, finally decided to just build one the way he wanted it. Sticking to a few key principles such as an analog design with no filters and no tone controls, and keeping it simple with just an input and a 5-band EQ, the JazzAmp prototypes were born in 2005. The first production model was shipped in October of 2006, and the JazzAmp has since evolved to include significant increases in power and essential features which do not detract from the original tone of the first prototypes.

 The Henriksen JazzAmp has proven itself to be THE jazz guitar amplifier for gigging jazz musicians over the past decade.
The JazzAmp provides all the power, portability and features a jazz guitar or bass player needs with 120 watts of analog power, a 5 band graphic EQ, reverb, input gain control, studio grade line out, FX loop, extension speaker out and headphone out.

The JazzAmp is built in two sizes; the 310 is a 10″ speaker combo and the 312 is a 12″. The JazzAmp 310 is has a slightly tighter response to cut through a band mix while the 312, originally designed as a bass amp, has a softer response and can handle much lower frequencies which makes it more ideally suited for solo fingerstyle, 7-string guitar or, of course, bass.

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