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 Used Signal Processors

Used Signal Processors

(292 Items)
Clear All
ATI Used ATI Encore DA412 Patch Bay
Used ATI Used ATI Encore DA412 Patch Bay
Product Price  $69.99
$79.99
Great Condition
ATI Used ATI Encore Da412 Patch Bay
Used ATI Used ATI Encore Da412 Patch Bay
Product Price  $69.99
$79.99
Great Condition
ATI Used ATI Encore DA412 Patch Bay
Used ATI Used ATI Encore DA412 Patch Bay
Product Price  $69.99
$79.99
Great Condition
Archodis Used ARCHODIS V ANALOG SPRING REVERB Effects Processor
Used Archodis Used ARCHODIS V ANALOG SPRING REVERB Effects...
Product Price  $359.99
$449.99
Great Condition
Art Used Art ProSplit High Performance Mic Splitter Microphone Preamp
Used Art Used Art ProSplit High Performance Mic Splitter...
Product Price  $59.99
$69.99
Great Condition
Victory Used Victory V4 Copper Preamp
Used Victory Used Victory V4 Copper Preamp
Product Price  $449.99
$899.99
Great Condition
KORG Used KORG DTR2
Used KORG Used KORG DTR2
Product Price  $199.99
$249.99
Great Condition
Avalon Used 2020s Avalon VT737SP Class A Mono Tube Microphone Preamp
Used Avalon Used 2020s Avalon VT737SP Class A Mono Tube...
Product Price  $1,629.99
$2,199.99
Great Condition
Universal Audio Used Universal Audio UAD-2 Satellite QUAD Signal Processor
Used Universal Audio Used Universal Audio UAD-2 Satellite QUAD...
Product Price  $539.99
$599.99
Great Condition
MESA/Boogie Used MESA/Boogie Cab Clone Direct Box
Used MESA/Boogie Used MESA/Boogie Cab Clone Direct Box
Product Price  $149.99
$199.99
Great Condition
Antelope Audio Used Antelope Audio Isochrone OCX Master Clock Generator Digital Clock
Used Antelope Audio Used Antelope Audio Isochrone OCX Master...
Product Price  $489.99
$999.99
Great Condition
RANE Used RANE AD22AD22B Effects Processor
Used RANE Used RANE AD22AD22B Effects Processor
Product Price  $159.99
$449.99
Great Condition
Toft Audio Designs Used Toft Audio Designs DC-2 Compressor
Used Toft Audio Designs Used Toft Audio Designs DC-2 Compressor
Product Price  $399.99
$589.99
Great Condition
Radial Engineering Used Radial Engineering SPACE HEATER
Used Radial Engineering Used Radial Engineering SPACE HEATER
Product Price  $409.99
$499.99
Great Condition
Radial Engineering Used Radial Engineering Q3 EQ COIL Rack Equipment
Used Radial Engineering Used Radial Engineering Q3 EQ COIL Rack...
Product Price  $449.99
$549.99
Great Condition
Radial Engineering Used Radial Engineering Q3 EQ COIL Rack Equipment
Used Radial Engineering Used Radial Engineering Q3 EQ COIL Rack...
Product Price  $449.99
$549.99
Great Condition
Carvin Used Carvin U7000 Signal Processor
Used Carvin Used Carvin U7000 Signal Processor
Product Price  $19.99
$65.99
Great Condition
Roland Used Roland SRV-3030D Effects Processor
Used Roland Used Roland SRV-3030D Effects Processor
Product Price  $159.99
$249.99
Great Condition
Apogee Used Apogee ROSETTA A/D Signal Processor
Used Apogee Used Apogee ROSETTA A/D Signal Processor
Product Price  $199.99
$469.99
Great Condition
Two Notes AUDIO ENGINEERING Used Two Notes AUDIO ENGINEERING Torpedo Captor X Direct Box
Used Two Notes AUDIO ENGINEERING Used Two Notes AUDIO...
Product Price  $419.99
$474.99
Great Condition
Switchcraft Used Switchcraft TTP96ASFNX 96 Point TT Patchbay With EDAC ELOC Patch Bay
Used Switchcraft Used Switchcraft TTP96ASFNX 96 Point TT...
Product Price  $569.99
$1,199.99
Great Condition
Behringer Used Behringer SRC 2000 Noise Gate
Used Behringer Used Behringer SRC 2000 Noise Gate
Product Price  $59.99
$74.99
Great Condition
Fractal Audio Used Fractal Audio AXE FX ULTRA Multi Effects Processor
Used Fractal Audio Used Fractal Audio AXE FX ULTRA Multi Effects...
Product Price  $459.99
$749.99
Great Condition
Casella Used Casella Cel 240
Used Casella Used Casella Cel 240
Product Price  $299.99
$479.99
Great Condition
RANE Used RANE DC4 Compressor
Used RANE Used RANE DC4 Compressor
Product Price  $109.99
$120.99
Great Condition
Aphex Used Aphex 141B 8-Channel Digital To Analog Signal Processor
Used Aphex Used Aphex 141B 8-Channel Digital To Analog Signal...
Product Price  $189.99
$224.99
Great Condition
Biamp Used Biamp QUAD LIMITER Compressor
Used Biamp Used Biamp QUAD LIMITER Compressor
Product Price  $79.99
$284.99
Great Condition
Antelope Audio Used Antelope Audio Isochrone OCX Master Clock Generator Digital Clock
Used Antelope Audio Used Antelope Audio Isochrone OCX Master...
Product Price  $359.99
$999.99
Great Condition
Arx Used ARX QUADCOMP Compressor
Used Arx Used ARX QUADCOMP Compressor
Product Price  $129.99
$299.99
Great Condition
Dbx Proffessional Products Used DBX PROFFESSIONAL PRODUCTS MC6 MINI COMP Compressor
Used Dbx Proffessional Products Used DBX PROFFESSIONAL PRODUCTS...
Product Price  $159.99
$169.99
Great Condition
TC Electronic Used TC Electronic D-two Effects Processor
Used TC Electronic Used TC Electronic D-two Effects Processor
Product Price  $299.99
$399.99
Great Condition
Two Notes AUDIO ENGINEERING Used Two Notes AUDIO ENGINEERING Torpedo C.A.B. Speaker Cab Simulator Signal Processor
Used Two Notes AUDIO ENGINEERING Used Two Notes AUDIO...
Product Price  $143.99
$199.99
Great Condition
Klark Teknik Used Klark Teknik 75-KT Compressor
Used Klark Teknik Used Klark Teknik 75-KT Compressor
Product Price  $269.99
$499.99
Great Condition
Antelope Audio Used Antelope Audio Isochrone OCX Master Clock Generator Digital Clock
Used Antelope Audio Used Antelope Audio Isochrone OCX Master...
Product Price  $449.99
$999.99
Great Condition
Summit Audio Used Summit Audio TLA-50 Compressor
Used Summit Audio Used Summit Audio TLA-50 Compressor
Product Price  $399.99
$1,000.99
Great Condition
Black Lion Audio Used Black Lion Audio Seventeen Compressor
Used Black Lion Audio Used Black Lion Audio Seventeen Compressor
Product Price  $449.99
$599.99
Great Condition
Joemeek Used Joemeek ProChannel VC3 Compressor
Used Joemeek Used Joemeek ProChannel VC3 Compressor
Product Price  $239.99
$339.99
Great Condition
Sabine Used Sabine FBX1020 Feedback Suppressor
Used Sabine Used Sabine FBX1020 Feedback Suppressor
Product Price  $129.99
$139.99
Great Condition
Fractal Audio Used Fractal Audio AXE-FX Ultra Multi Effects Processor
Used Fractal Audio Used Fractal Audio AXE-FX Ultra Multi Effects...
Product Price  $424.99
$1,049.99
Great Condition
KORG Used KORG NUVIBE Multi Effects Processor
Used KORG Used KORG NUVIBE Multi Effects Processor
Product Price  $289.99
$399.99
Great Condition