Why Shop With Us?

Free Shipping

Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).

Orders placed before 3 p.m. ET usually ship the same business day.

Learn More

2-Year Free Warranty on Guitars

Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.

Contact Us for Details

We're Here for You

Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.

Contact Us

Contact Us

Call Now
800-449-9128

Hablamos Español

866.226.2919

Let's Chat
Live Chat

Hours:

MON - FRI 6 AM – 7 PM PT

SAT 6 AM – 6 PM PT

SUN 8 AM – 5 PM PT

Holiday Hours:

Thanksgiving: Closed

Christmas Eve Hours: 6 AM PT – 3 PM PT

Christmas Day: Closed

New Year’s Eve: 6 AM PT – 4 PM PT

New Year’s Day: Closed

Track your order Returns FAQs Make a Card Payment
Empty Cart Icon

Your Cart Is Empty

Sign In < Continue Shopping
Why Shop With Us?
 Kick off the season with holiday deals and accessory coupon savings. For even more discounts, call 888-688-0208 or chat online Holiday Kickoff Sale - Up to 50% off on select gear
RewardsBlogHelp

Contact Us

800-449-9128
Cart
Back
Shop by Category
Hot Deals

Help | Call or Chat

 Track your orderReturnsFAQsMake a card paymentWhy shop with us? RewardsBlogHelp

This season, gift now & pay later with Get Details

Home Pro Audio Signal Processors

Signal Processors

(2209 Items)

  • Direct Boxes

    Direct Boxes

  • Equalizers

    Equalizers

  • Compressors & Limiters

    Compressors & Limiters

  • 500 Series Gear

    500 Series Gear
Zoom Used Zoom G5n Multi Effects Processor
Used Zoom Used Zoom G5n Multi Effects Processor
Product Price  $224.99
Great Condition
Empirical Labs Used Empirical Labs EL8 Distressor Compressor
Used Empirical Labs Used Empirical Labs EL8 Distressor...
Product Price  $1,299.99
Great Condition
TC Helicon Used TC Helicon T1 Vocal Processor
Used TC Helicon Used TC Helicon T1 Vocal Processor
Product Price  $104.99
Great Condition
Zoom Used Zoom V3
Used Zoom Used Zoom V3
Product Price  $189.99
Great Condition
Black Lion Audio Used Black Lion Audio Bluey FET LIMITING AMPLIFIER Compressor
Used Black Lion Audio Used Black Lion Audio Bluey FET LIMITING...
Product Price  $739.99
Great Condition
NUX Used NUX Cerberus Multi Fx
Used NUX Used NUX Cerberus Multi Fx
Product Price  $199.99
Great Condition
Focusrite Used Focusrite OctoPre MKII Microphone Preamp
Used Focusrite Used Focusrite OctoPre MKII Microphone Preamp
Product Price  $299.99
Great Condition
Joemeek Used Joemeek One Q
Used Joemeek Used Joemeek One Q
Product Price  $419.99
Great Condition
Eventide Used Eventide H3000S Multi Effects Processor
Used Eventide Used Eventide H3000S Multi Effects Processor
Product Price  $1,849.99
Great Condition
KORG Used KORG KP1 Multi Effects Processor
Used KORG Used KORG KP1 Multi Effects Processor
Product Price  $99.99
Great Condition
Yamaha Used 2010 Yamaha SPX90 Effects Processor
Used Yamaha Used 2010 Yamaha SPX90 Effects Processor
Product Price  $329.99
Great Condition
Black Lion Audio Used Black Lion Audio B173 QUAD Microphone Preamp
Used Black Lion Audio Used Black Lion Audio B173 QUAD Microphone...
Product Price  $1,099.99
Great Condition
Black Lion Audio Used Black Lion Audio B172A Compressor
Used Black Lion Audio Used Black Lion Audio B172A Compressor
Product Price  $999.99
Great Condition
TC Helicon Used TC Helicon Critical Mass Vocal Processor
Used TC Helicon Used TC Helicon Critical Mass Vocal Processor
Product Price  $99.99
Great Condition
Ga Premier Used GA PREMIER EQ-73 Equalizer
Used Ga Premier Used GA PREMIER EQ-73 Equalizer
Product Price  $399.99
Great Condition
Wesaudio Used Wesaudio Ng76 Compressor
Used Wesaudio Used Wesaudio Ng76 Compressor
Product Price  $1,149.99
Great Condition
Roland Used Roland Sp404 Mkii Multi Effects Processor
Used Roland Used Roland Sp404 Mkii Multi Effects Processor
Product Price  $439.99
Great Condition
One Little Bear Used One Little Bear MC130-Pro Mini 3 Way Stereo XLR Switcher Box Signal Processor
Used One Little Bear Used One Little Bear MC130-Pro Mini 3 Way...
Product Price  $39.99
Great Condition
Warm Audio Used Warm Audio EQP-WA Equalizer
Used Warm Audio Used Warm Audio EQP-WA Equalizer
Product Price  $599.99
Great Condition
Orban Used Orban 550 Digital Optimed Compressor
Used Orban Used Orban 550 Digital Optimed Compressor
Product Price  $1,249.99
Great Condition
Switchcraft Used Switchcraft Pt8fxmxdb25 Patch Bay
Used Switchcraft Used Switchcraft Pt8fxmxdb25 Patch Bay
Product Price  $299.99
Great Condition
Cloud Used Cloud Cloudlifter CL-1 Microphone Preamp
Used Cloud Used Cloud Cloudlifter CL-1 Microphone Preamp
Product Price  $92.99
Great Condition
Orban Used Orban 2200 Optimed Fm Vocal Processor
Used Orban Used Orban 2200 Optimed Fm Vocal Processor
Product Price  $849.99
Great Condition
BOSS Used BOSS AD-5 Acoustic Instrument Processor Direct Box
Used BOSS Used BOSS AD-5 Acoustic Instrument Processor Direct...
Product Price  $119.99
Great Condition
dbx Used Dbx AFS224 Feedback Suppressor
Used dbx Used Dbx AFS224 Feedback Suppressor
Product Price  $209.99
Great Condition
Zoom Used Zoom G5n Multi Effects Processor
Used Zoom Used Zoom G5n Multi Effects Processor
Product Price  $224.99
Great Condition
Boss Used BOSS GX100 Multi Effects Processor
Used Boss Used BOSS GX100 Multi Effects Processor
Product Price  $399.99
Great Condition
Avalon Used Avalon VT737SP 50TH ANNIVERSARY Microphone Preamp
Used Avalon Used Avalon VT737SP 50TH ANNIVERSARY Microphone...
Product Price  $2,500.99
Great Condition
Focusrite Used Focusrite ISA Two Microphone Preamp
Used Focusrite Used Focusrite ISA Two Microphone Preamp
Product Price  $619.99
Great Condition
Warm Audio Used Warm Audio WA2A Compressor
Used Warm Audio Used Warm Audio WA2A Compressor
Product Price  $699.99
Great Condition
True Systems Used True Systems P-Solo Microphone Preamp
Used True Systems Used True Systems P-Solo Microphone Preamp
Product Price  $380.99
Great Condition
Dangerous Music Used Dangerous Music 2-Bus LT Signal Processor
Used Dangerous Music Used Dangerous Music 2-Bus LT Signal...
Product Price  $629.99
Great Condition
Dangerous Music Used Dangerous Music 2-Bus+ Signal Processor
Used Dangerous Music Used Dangerous Music 2-Bus+ Signal...
Product Price  $2,499.99
Great Condition
Dangerous Music Used Dangerous Music D-bOX Signal Processor
Used Dangerous Music Used Dangerous Music D-bOX Signal Processor
Product Price  $540.99
Great Condition
Furman Vintage 1990s Furman LC-6 Compressor
Vintage Furman Vintage 1990s Furman LC-6 Compressor
Product Price  $79.99
Warm Audio Used Warm Audio WA2A LEVELING AMP Compressor
Used Warm Audio Used Warm Audio WA2A LEVELING AMP Compressor
Product Price  $549.99
Great Condition
Tech 21 Used Tech 21 Sans Amp DI2112
Used Tech 21 Used Tech 21 Sans Amp DI2112
Product Price  $269.99
Great Condition
Cloud Used Cloud Cloudlifter CL-1 Microphone Preamp
Used Cloud Used Cloud Cloudlifter CL-1 Microphone Preamp
Product Price  $104.99
Great Condition
Warm Audio Used Warm Audio Wa76 Compressor
Used Warm Audio Used Warm Audio Wa76 Compressor
Product Price  $399.99
Great Condition
Tube-Tech Used Tube-Tech LCA 2B Compressor
Used Tube-Tech Used Tube-Tech LCA 2B Compressor
Product Price  $3,399.99
Great Condition