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T-Rex Engineering The Sweeper Bass Chorus Effects Pedal

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The Sweeper Bass Chorus Pedal from T-Rex Engineering is a stunning bass guitar pedal that revives the chorus effect. Use The Sweeper as a new tool to deliver classic bottom end if you're a bassist wor... Click To Read More About This Product

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The Sweeper Bass Chorus Pedal from T-Rex Engineering is a stunning bass guitar pedal that revives the chorus effect. Use The Sweeper as a new tool to deliver classic bottom end if you're a bassist working in any style of music. The Sweeper isn't especially complicated or packed with all sorts of extra features; it's just a simple, intuitively designed bass pedal that does just one job”producing an exquisite chorus effect for the bass. The Sweeper turns your bass into a vibrant, colorful instrument that will define the very sonic texture of whatever style you play.

The secret to The Sweeper chorus pedal is its tone. Designed exclusively for the bass, this T-Rex pedal gives you a gorgeous chorus effect no matter what depth or rate you set. There's not a frequency wasted on tone that might work for a guitar”but not for the bottom you have to deliver. Plug The T-Rex Sweeper bass chrous pedal in and it'll quickly become the one pedal you can't play without.


  • Input Impedance @ 1KHz: 470kOhm
  • Output Impedance@1KHz : 35kOhm
  • Power supply: 9V DC (Power tool 9)
  • Minimum Power supply Voltage: 8.5V DC
  • Maximum Power supply Voltage: 12.5V DC
  • Current Draw @ 9V DC: 90mA
  • Maximum input signal Vp/p: Adjustable
  • Battery Type: 9V battery 6F22
  • Battery Life: 1/2 to 1 Hour
  • External connectors: Input Jack. Output Jack, 9V DC Jack
  • Controls: On/Off, Modulation, Level,
  • Time Echo Repeat Fitter, Speed
  • Dimensions: 3-9/10" W x 2-1/5" H 4-7/10" D
  • Weight (excl. battery):
Pro Coverage
T-Rex grants a 2-year warranty against defective parts or workmanship.
In the event of a defect, please contact the nearest T-Rex dealer.

  • Customer Reviews

Review Snapshot

by PowerReviews

(based on 2 reviews)

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Reviewed by 2 customers

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(12 of 13 customers found this review helpful)


Simply a simple, great Bass Chorus

By Ian Perge

from Akron, OH

After reading many a review, asking the opinions of several professional and semi-pro bassists that I've come to know, and finally trying it in person (with my own bass, of course - as a general rule if purchasing a substantial or important piece of gear I bring one of my custom or highly-modified basses with me so that I know what the item will sound like using *my bass* as opposed to one pulled off the store wall that's not close to what I use, I made the decision to replace my "Ultra-Large DIGItal Effects Corporation�̣ۡ�" Bass Chorus (which, to be fair I got during a promotion after purchasing another, far better and usable product) with T-Rex's "The Sweeper" Bass Chorus... and I've been incredibly happy with my decision since and for the following reasons... I've found over the years and during the ever-increasing growth of my "tonal palate" that it's far better to purchase an item that does *1* thing excellent rather then a *multitude* of things with mediocre success. In this case, I was replacing a Bass Chorus that had just under *20* "Chorus Voices", built-in "Voice Randomization" that automatically increases with the number of voices you are using, and dual outputs that let you either run your effected signal straight through to your amp or add speaker emulation for connecting directly to a mixing board in recording situations. ...except that none of these so-called "features" were of actual help in Real World situations. The combination of the multitude of "Chorus Voices" and "Voice Randomization" and increase with the amount of voices selected simply served to muddy the sound of my bass in a band setting to the point where notes were blurry, indistinct, and of no use whatsoever. The "Speaker Emulation" sounded like no Speaker Cabinet I'd ever owned, use or tried as well as the fact that any recording situation that has you plugging into a mixing board from a pedal not *specifically* made for that purpose will be a recording barely usable for demo purposes, nevermind any type of professional or releasable recording. To add insult to sonic injury, there was a decent amount of noise emanating from the pedal: what is generally known as "digital noise" when engaged as well as a general low-level "hum" when off and in my signal path. Now compare "The Sweeper" to the above pedal. It doesn't have double-digit "Chorus Voices", automatic Voice Randomization, or Speaker Emulation for recording Direct. What it DOES have is the relative simplicity of 3 knobs (Depth, Rate, and Volume) and the ability to go from a minor amount of "doubling" to a thick, lush chorus that still lets you be heard through the sonics of a heavy rock band. No hum or "digital noise", just a great chorus when engaged and a crystal clean "True Bypass" when not. And instead of a fairly unusable set of mono signal & "direct" outputs, the T-Rex gives to two honest-to-goodness outputs for Stereo Chorus if needed or a solid mono output if you're not running a stereo setup. Add an input jack and make sure that the pedal is built solidly which is is highly and that's far better than a load of functions that you'll end up not using and end up spoiling the one function it *should* do properly. That function is what the T-Rex "The Sweeper" Bass Chorus gives you, simply and with fantastic sonic quality. Some players might think one is trading down by removing all of the "functions" of the first chorus... however, after hearing The Sweeper most if not all will realize that choosing quality over quantity is the ultimate in trading up.

(1 of 7 customers found this review helpful)


Would be cool if it worked


from Philadelphia

When i received this product and plugged it in, the LED light did not turn on. I tried it with a battery, adaptor, and through both outputs. NOTHING worked. SO I am returning this and buying ANALOGMAN Chorus. It might be GC's shipping or a bad product but I still won't buy it again.

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