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Product 488508

Ultrasound CP-100 Acoustic Guitar Combo Amplifier  

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The Ultrasound CP-100 is a compact, powerful 2-channel amp that keeps your amplified acoustic guitar sounding acoustic. It has an 8" LF driver and HF...Click To Read More About This Product

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Wonderfully transparent, natural acoustic tone with plenty of connectivity and performance options for solo singer-guitarists.

The Ultrasound CP-100 is a compact, powerful 2-channel amp that keeps your amplified acoustic guitar sounding acoustic. It has an 8" LF driver and HF horn powered by 100W. 2 channels each have combo XLR/1/4" inputs so they can be used for either guitar or microphone, and the inputs also have phantom power for condenser mics. Each channel has 2-band EQ, and channel 2 has a notch filter for eliminating feedback, as well as a shape switch that scoops the mids. A bank of 16 digital footswitchable effects (reverbs, delays, flanges, choruses, auto wah, and rotary) can be assigned to either or both channels. Other features of the Ultrasound CP-100 include effects send/return, an unbalanced line out for connection to a mixer or slave amp, and a balanced DI output for connection to a recorder or sound reinforcement system.

  • 100W
  • 8" driver with HF horn
  • 2 channels
  • Combo XLR/1/4" inputs with phantom power on both channels
  • Bass and treble tone controls on both channels
  • 18dB cut, sweepable notch filter on channel 2
  • Shape switch (mid scoop) on channel 2
  • 16 digital effects assignable to either or both channels
  • Effects include reverb, auto wah, delay, flange, chorus, and rotary speaker simulation
  • Send/return for external effects
  • Unbalanced line out
  • Balanced direct out
  • RCA input for tape or CD player
  • Footswitch input for effects on/off
  • Vintage-style leather handle
  • 16"W x 12"H x 11"D
  • 30 lbs.

Review Snapshot

by PowerReviews

(based on 5 reviews)

Ratings Distribution

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  • 1 Stars



Reviewed by 5 customers

Displaying reviews 1-5

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1 Sweet Amp

By NoLongerTheDoubtingThomas-hD877

from Upstate South Carolina

I've owned this Amp going on a year now and all I can say is - It is SWEEEEEEEEEEEEEET. I was hesitant to lay down the bucks, I mean - it's made in Iowa, what could they possibly know about Amps. After doing my research it became obvious; they were putting together quality rigs w/cutting edge technology. So I took a chance and bought it, I'm glad I did. It has the power to fill a room and the sounds are sweeeeeeeeeeeeeeet.


Sometimes the best comes in a small package.

By guitar crosspicker

from Oconee, GA

I am a church musician and have been playing for church singing for 32 + years. I have a 2005 Taylor 710 ce with the expression system and I could not believe the sound could be so natural (beautiful) with the Ultrasound CP100. (like an un-amplified guitar with more volume) I have a Marshall 100D acoustic amplifier, and the Ultrasound CP100, sounds much better and is 30 pounds lighter. I have been playing through the church P A system and I was never satisfied with my acoustic guitar sound but I intend to use the CP100 for all church services now. We also vacation in the north Georgia mountains and several of us get together to provide the music for the porch singers. This amplifier has the punch and I believe it will more than give me the volume needed for an outside band. I am well pleased.


Small amp with a big sound

By Tim Riskus

from Pennsylvania

See all my reviews

This is just an all out great sounding amp, I studied long an hard trying to decide between getting a Marshall, Roland or a Crate amp and in the process I ran across the Ultrasound and really liked the reviews it recieved, both the good and the bad. I agree the effects dial is hard to read since the numbers are so tiny but you eventually fall into a favorite and remember the position so that's not a real issue. The sound this amp makes is just amazing. By adjusting the EQ setting you can make your guitar sound the same as if it were unplugged, just a lot louder. I am completely satisfied, being a 100 watt amp you would think this amp would be hugh and weigh a lot buy its not much larger than a 15 watt amp with a 100 watt sound. I must admit I was a little skeptical since I never heard much about the Ultrasound amps and now I actually regret not get the Pro 250 after having used the CP-100.


Very Pleased

By NothinToSee

from Oregon

I bought an UltraSound CP-100 about four years ago. I have a Larrivee OM-03 with a Fishman pick-up, and I play a lot of alt/folk that can range from quiet and contemplative to loud and raucous. I use it to play small gigs around town about a dozen times a year, and it was probably a little more than I needed to spend on an amp. However, the sound quality is simply awesome, and I have never regretted the money spent. I would highly recomend this to anyone who is looking to play and sing in small venues.


Buy this amp!

By Steve

from Duluth MN.

See all my reviews

If you play an acoustic instrument of any type, this is the amp for you. It's listed as a guitar amp, but I play fiddle and mandolin and it works great for that too. I've never heard such a pure acoustic tone from an amp before. I had to check when I first tried it out to make sure it was on, as the sound was so accurate that I couldn't tell it was coming out of the amp. It's very light and small, yet packs 100 watts of power. It seems very sturdy and well made, and is made in the USA. The only small quibble I have is that the numbers on the built in effects (which work great by the way) are kind of small and hard to read for my aging eyes. But that's really a minor flaw in an otherwise wonderful amp. It's not cheap, but usually you get what you pay for. Highly recommended!

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