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Preamps and ProcessorsPreamplifiers (2 or more Channels)

Acoustic Image FLEX 2-Channel Preamplifier (Stand-mountable, Series 4+)

         Manufactured by: Acoustic Image

Continental US - larger items may carry a partial shipping charge to AK, HI and PR
All shoppers outside the US State of New Jersey pay NO SALES TAX on any purchases at Gollihur Music. (NJ Residents pay NJ State Sales Tax of 7%.) International customers, please visit our "How to Order" Policies page for information concerning VAT and Customs Charges that may be assessed by your country and/or delivery services.

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FLAT RATE WORLDWIDE SHIPPING!14 Day Trial Period on Acoustic Image Clarus, Contra, Corus, Ten2 and FLEX amps!

New owners have a fourteen day trial period during which they may return the amp in new condition -- NO QUESTIONS ASKED! -- for a full refund minus our outgoing shipping cost. Returns must be preauthorized; restocking fee applies if unit is not returned in new condition.

Acoustic Image FLEX PreampThe mad scientists at Acoustic Image are at it again. Never content to rest on their past successes, Rick Jones and company are constantly looking for new, better, more efficient ways to help acoustic instrumentalists be heard in the best voice possible. They've continually re-developed their innovative amplification systems over the past decade and a half, and each new version features new, smart features.

Their newest development is the convenient FLEX modular system. With two convenient components - a mic-stand mountable 2-channel preamp and a compact, 2x10 tri-amped powered speaker - that you can combine into a "combo" (or use independently), you have a powerful modular SYSTEM that can handle most any professional situation.

The heart of the system is the brand new FLEX Preamp. Building upon the time-tested design of the previous Acoustic Image combos and heads, it adds some new features and specifications that you're going to love - and it's a brand-new preamp-only design that you can conveniently mount on a mic stand, or sit on a tabletop, for easy access to the controls.

Acoustic Image FLEX PreampIt has a host of inputs and outputs - with effects loops and separate line-outs for each channel, and a master DI output, as well as a new "pseudo-stereo" output for when you use stereo effects - you've got all the same flexibility as the original Clarus amp. But when used together with the FLEX Powered Speaker, the units connect with a single CAT5 network cable for simple, flexible connectivity, including the power for the preamp. So you don't need to use the power adapter (which is included if you wish to use the preamp without the FLEX powered speaker cabinet). And it means that you can easily and affordably get a bunch of different cables for a variety of different gig situations, with a quick trip to the local office supply store (heck, they even sell network cables at most 7-Eleven stores!)

The new FLEX preamp also includes some new features. The ¼" (instrument) and XLR (mic) inputs are now on separate jacks, rather than the combo jack - and they're independently buffered. So you can even plug in up to four different things (2 mics and 2 instruments) and get quality signal; you won't have as much control over blend, though, unless the instruments have their own output volume controls (like a keyboard, for instance.) And the EQ has been expanded from 3 bands to 4; carefully selected lo-mid and hi-mid controls provide a lot more control over your tone. All of the buttons on the face of the preamp now illuminate when they're active, so you never have to wonder whether the button is "on" or "off," even on a dark stage. And the built-in effects have been overhauled - the rarely used effects have been removed, leaving you the useful reverb, delay, and new "both" setting - as well as a new "rate" knob for more control over the settings of the effect.

Acoustic Image FLEX PreampAll of this, packed into a small, lightweight (under 2.5 lbs) unit that can be mounted atop a standard mic stand right in front of you onstage.


  • Size: 2.5"H x 11/5"W x 5"D
  • Weight: 2.5 lbs
  • Inputs:
    • Microphone: 600 ohm balanced, 10db gain, 48v phantom Power
    • Instrument: 1 MegOhm impedance
  • DI Outputs: Balanced XLR, +4dB, Ground Lift, Pre/Post, 10dB pad
  • Effects Loops: Parallel with separate i/o jacks, per channel
  • EQ:
    • Low: Shelving, ±12dB at 50Hz
    • Lo Mid: ±12dB at 250 Hz
    • Hi Mid: ±12dB at 1200 Hz
    • Treble: Shelving, ±12dB at 8 kHz
  • Low Cut Filter: -12 dB/octave sweepable from 30-150 Hz
  • Phase Reverse: Switchable 180°
  • Optional Speaker Emulator (see manual)
  • Acoustic Image FLEX Preamp
  • Effects: 24 bit digital with 3 programs (Reverb, Delay, Reverb+Delay)
  • Outputs:
    • Proprietary Balanced signal/phantom power interface via RJ-45 (Cat5, 100 ft. maximum length)
    • 1/4" Unbalanced Outputs
  • Supplied Accessories:
    • Padded Gig Bag
    • 10 foot Cat5 Cable
    • Mic Stand Adapter
    • DC power Supply

Is this product returnable? Click here for our return policy.
Is there a Factory Warranty? Click here to find Warranty Information for all of our manufacturers.
International customer? Click here for important information about ordering from outside the USA, and what to expect concerning taxes, VAT, delivery times, and more.

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Some of our customers have told us what they think about this product.
Check out what they had to say!
THANKS A LOT GUYS, Received my AI Flex2 pre amp and AI power cabinet just in time for a gig Saturday. The order was filled and delivered in two days, you are amazing. But the part that really ticks me off is that the system is so accurate, clear and true to tone it made me realize how much I was stinking up the place. Sheeez. Now I will be wood shedding for a very long time and Acoustic Image may be responsible for my wife leaving me. Life IS too short for bad tone...
David A (February 2015)
I spoke with Mark a couple of times, and I purchased a Flex System; I received it last week and I just wanted to call and thank you guys. It is fantastic and I appreciate all the advice and help that I got from Mark. So I just wanted to thank you guys.
Mark S. (March 2015)
Hello, just wanted to take a minute to tell you how great this Acoustic Image Flex Preamp is. Used it last night on a gig and my bass sounded the best it's ever sounded (the guitar player even noticed). For years I have been using the Fishman Pro EQ Platinum, and it was fine, but when I plugged into the Flex I was blown away.
Randy B (May 2015)