Behringer Ultracoustic ACX1800 - 180-watt 2x8" Stereo Acoustic Combo Demo

180-watt 2x8" 2-channel Acoustic Guitar Combo Amp
Behringer Ultracoustic ACX1800 - 180-watt 2x8
Behringer Ultracoustic ACX1800 - 180-watt 2x8
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Out of box unit. Unit is in good condition and performs up to factory specifications. Shows signs of light use. Power cable and documentation included in original packaging. Box is in decent shape.

This item was thoroughly inspected by our factory-authorized service team and is backed by Sweetwater's exclusive 2-year warranty. The images shown do not necessarily represent the condition of this particular item.

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Behringer Ultracoustic ACX1800 - 180-watt 2x8" Stereo Acoustic Combo
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This is One Feature Packed Amp!

Amplify your acoustic and control feedback at the same time with the Behringer Ultracoustic ACX1800 stereo acoustic guitar amplifier. Sporting 180 watts of power and two channels to cover all your input needs, the ACX1800 is a versatile amp at a great value. With complete connectivity for instruments, microphones, and line level sources, the ACX1800 is a do-it-all amp. If you need an acoustic amp with a lot of features that won't break the bank, check out the Behringer Ultracoustic ACX1800.

Behringer Ultracoustic ACX1800 Acoustic Combo Amp at a Glance:

  • Two channels

  • FBQ feedback indicators
  • Built-in FX
Two channels

Behringer's ACX1800 is a true dual-channel stereo amplifier. Channel one is for your acoustic guitar, while Channel two gives you inputs for either a microphone or a line level source. Both channels feature a 9-band graphic EQ for tone shaping. On top of that, each EQ features FBQ feedback indication to help you terminate feedback quickly.

FBQ feedback indicators

Engage the FBQ control on the ACX1800, and LEDs on the graphic EQ come to life. The LED's fluctuate in intensity, in response to the input signal. If feedback occurs, just pull down the fader that is glowing brightest, and you'll wrangle in that feedback in a flash.

Built-in FX

Behringer's ACX1800 gives you two separate digital FX processors, one for each channel. Each has 16 presets including reverb, chorus, delay, and more. You can even tailor the chosen effect to your style with the Parameter dial.

Behringer Ultracoustic ACX1800 Acoustic Combo Amp Features:

  • Feature-packed acoustic amp at a great price

  • 2-channel design supports virtually any input source
  • FBQ feedback indicators help fight feedback fast
  • Dual effects processors help you polish your sound
  • Dual 9-band graphic EQs for tone shaping
Amplify your acoustic guitar with the Behringer Ultracoustic ACX1800!

What Makes a Product a "Demo"?

At Sweetwater, "Demo" usually means one of the following:

  • It spent some time on display in our store.
  • It was used in a sales training presentation.
  • It was returned by another customer who tried it out for a few days.

Every demo item we sell is certified to be in perfect working order and backed by Sweetwater's 2-year Total Confidence Coverage warranty. Demos are thoroughly inspected by our Factory-Authorized technicians, and you will find their detailed condition notes on the product page. If you have any questions, please call us at (800) 222-4700.

Additional Media

Guitar Amp Buying Guide
Ultracoustic ACX Series Acoustic Amp User Manual
Ultracoustic ACX1800 180-Watt 2 Channel Stereo Acoustic Amp Spec Sheet

Tech Specs

Number of Channels 2
Total Power 180W
Speakers 2 x 8" Bugera
Stereo Yes
Inputs 1 x Instrument, 1 x XLR, 1 x TRS, 2 x RCA
Outputs 2 x XLR (Line), 1 x 1/4" (Tuner)
Effects Yes (2 x Digital FX Processors, 16 Presets Each)
EQ 2 x 9-band (Graphic)
Feedback Control Yes
Footswitch I/O Yes
Height 16.8"
Width 20.7"
Depth 9.5"
Weight 40.6 lbs.
Manufacturer Part Number ACX1800

Customer Reviews

Based on 1 review
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Not As Loud As You Would Expect

I purchased the ACX1800 to be able to take only one amp to rehearsals for my harp and electric guitar. I had a rehearsal this week using the ACX1800 for the first time and below are my comments. To me, my Stratocaster sounded fine through the instrument channel so I wouldn’t hesitate recommending it for that use if someone needs vocals/harp and guitar through the same amp. It would not be my first choice though for a guitar only amp. The only external effects pedal I used at the rehearsal was the Boss OD-3 and I liked the sound of the reverb setting #1 on the amp for both my guitar and harp. I haven’t tried yet any of the other effects in a rehearsal setting. From the reviews, I had expected the amp not to be as loud as expected being rated at 180w. But I was still surprised in our 30’ x 30’ rehearsal room as I had the master up to 10 and my harp mic gain up to 8 and we don’t play very loud. I have been running my harp through a 40w tube amp and it is probably twice as loud as the ACX1800 through the mic channel. The harp sounded very full through the ACX1800. For my guitar I had the gain up to 5 to be loud enough without the pedal on. I will keep the amp for the convenience of one amp versus two for rehearsals but I won't use it for a performance unless I am doing a solo acoustic guitar and singing gig. This is my second Sweetwater order and I am very pleased with the excellent customer service including same day as ordered shipping and very timely updates on the whole process.
Music background: Been playing guitar and in local bands for 50 years
See also: Combo Amps, Behringer, Behringer Guitar Combo Amps