Go to Content

Behringer ULTRACOUSTIC 1x8"ACX450 Acoustic Guitar Combo Amp

See how the ACX450 can bring your mellow moods to a bigger audience; plug into one today!


(3 reviews)


Print page
You need Flash player 8+ and JavaScript enabled to view this video.
  • Images (1)
MSRP: $344.99 $229.99 Save : $115.00 (33%)
In Stock & Ready To Ship!

Protect Your Investment! ( More Info )

MSRP: $344.99 $229.99 Save : $115.00 (33%)
Add to Cart

These days, going "unplugged" still involves plugging into something. Make the sweet sounds of your acoustic guitar and voice big enough to cut through the clink of coffee cups and casual chit-chat with the ULTRACOUSTIC ACX450.

The Ins and Outs

The 45-Watt ACX450 features two channels: one with a single 1/ 4" input jack and a second with a 1/4" input and XLR input, making it the ideal amp for a one-person show with an acoustic guitar and a mic for vocals. Just turn the GAIN dial to determine the levels of each channel.

Both channels feature a four-band EQ equipped with BEHRINGER's FBQ Feedback Detection System for instant feedback elimination. You also get a 24-bit FX processor per channel featuring 16 incredibly presets such as reverb and delay. We also include a footswitch for remote activation of the effects.

On the back panel, you will find a stereo RCA input for plugging in a CD player. If you're just getting started as a guitarist, this is a great way to play along with your favorite tunes. Or, if you're playing an extended set, you can use the CD IN section to provide music during breaks.

Speaker Talk

An original 8" BUGERA dual-cone speaker projects your sound with the utmost integrity. These beautifully voiced speakers are made 100 percent in-house. We even grew the trees that became the pulp used for the cones! Every step of this incredible amplifier's creation was overseen by BEHRINGER's quality control.

Big Sound, Small Package

Weighing in at less than 30 pounds, the ACX450 is the perfect way to quickly and easily bring a beautiful solo acoustic performance to a small venue. See how the ACX450 can bring your mellow moods to a bigger audience; plug into one today!


•  Powerful 45-Watt, 2-channel amplifier for acoustic instruments and vocals
•  Original 8" BUGERA dual-cone speaker for ultimate sound reproduction
•  2 integrated, 24-bit digital FX processors each with 16 awesome effects programs including reverb, modulation, delay, and various effects combinations
•  Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies
•  2 dedicated instrument and microphone channels with separate Gain and FX controls
•  Individual 5-band graphic EQ on each channel for awesome sound shaping
•  CD input allows you to play along to your favorite music
•  Dual footswitch FS112 for FX 1 & 2 bypass included
•  High-quality components and exceptionally rugged construction ensure long life
•  Conceived and designed by BEHRINGER Germany

Things You Will Get:

  • Acoustic Guitar Combo Amp
  • Dual Footswitch
  • Manual



The product is great for the price. Period. I love that you can control the amount of FX for both the mic and the 1/4 guitar input separately. Also great that you can control main volume for both separately. The FX are a little bit limited, but is really all you need for an acoustic set. I do wish my pedal effects worked through the amp, but I have found that my zoom pedal doesn't work through the amp, I suppose because the amp already has its own effects. There MIGHT be a way to do it, I haven't really played around with it too much. The sound is good though, and its a great amp for jam sessions with friends or small gigs. One thing I noticed is the faux leather started to rip on one of the corners, its just kind of a cheap vinyl wrap...but that doesn't effect the great sound and price IMO

Jimmy Jammer

chicago, illinois


Beautiful Sound !


Your not going to find an amp this size that sounds better..


Orlando Florida


Perfect for Acoustic Solo work


I am retired and play independent thumb - Tommy Emmanuel,Chet Atkins type material. A big sound in a little amp and the effects (especially the reverb and various echo selections) will make you sound a lot better than you really are ! lol I play a Taylor 314ce through it and have been extremely happy with quality of sound. I did my homework, shopped around and made the right choice .. :)

~~~ Bob ~~ Florida

Orlando Florida


ULTRACOUSTIC 1x8"ACX450 Acoustic Guitar Combo Amp

4.7 3


Other Features 24-bit sigma-delta, 64/128-times oversampling

Owner's Manual

Warranty Info:

ULTRACOUSTIC 1x8"ACX450 Acoustic Guitar Combo Amp

The manufacturer's warranty covers parts for one year and labor for one year from date of purchase. The warranty excludes damage from misuse, abuse, and contains other exclusions.