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 7 AM – 6 PM PT

SUN 8 AM – 5 PM PT

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

Your Cart Is Empty

Sign In < Continue Shopping
Why Shop With Us?
 Shop Guitar Fest - Up to 50% Off & special financing*. Call 888-688-0208 or chat for exclusive savings. Guitar Fest - Up to 50% Off
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
Home Pro Audio Signal Processors

Signal Processors

(246 Items)

  • Direct Boxes

    Direct Boxes

  • Equalizers

    Equalizers

  • Compressors & Limiters

    Compressors & Limiters

  • 500 Series Gear

    500 Series Gear
Clear All
Price Drop
Art P16 16-Channel XLR Balanced Patch Bay
Art P16 16-Channel XLR Balanced Patch Bay
5.0 of 5 stars (1)
Product Price  $79.99
$85.99
Price Drop
BOSS RC-505mkII Tabletop Loop Station -
BOSS RC-505mkII Tabletop Loop Station -
5.0 of 5 stars (1)
Product Price  $639.03
$659.99
Price Drop
Neutrik 48-Point TRS Patchbay
Neutrik 48-Point TRS Patchbay
4.0 of 5 stars (5)
Product Price  $108.86
$119.99
Sale
dbx DriveRack PA2 Speaker Management System
dbx DriveRack PA2 Speaker Management System
4.5 of 5 stars (9)
Product Price  $599.00
$655.00
Sale
dbx 266xs Compressor/Gate
dbx 266xs Compressor/Gate
3.5 of 5 stars (3)
Product Price  $259.00
$280.00
Price Drop
Art SCL2 Compressor
Art SCL2 Compressor
5.0 of 5 stars (1)
Product Price  $199.99
$229.99
Price Drop
Radial Engineering Reamp Station Studio Reamper & Direct Box
Radial Engineering Reamp Station Studio Reamper & Direct...
0 of 5 stars
Product Price  $249.99
$399.99
Price Drop
Art 351 Single Channel 31-Band Equalizer
Art 351 Single Channel 31-Band Equalizer
5.0 of 5 stars (9)
Product Price  $159.99
$169.99
Price Drop
Cloud Cloudlifter CL-2 Phantom powered gain booster for dynamic and ribbon mics
Cloud Cloudlifter CL-2 Phantom powered gain booster for...
5.0 of 5 stars (8)
Product Price  $212.00
$249.00
Price Drop
Art SplitCom Pro 2 Way Mic Splitter / Combiner
Art SplitCom Pro 2 Way Mic Splitter / Combiner
5.0 of 5 stars (13)
Product Price  $48.82
$59.99
Price Drop
Warm Audio WA76-D2 Dual Channel Clean Gain Discrete FET Compressor
Warm Audio WA76-D2 Dual Channel Clean Gain Discrete FET...
0 of 5 stars
Product Price  $1,199.00
$1,299.00
Or $25/month^ with 48 month
financing* Limited Time. Details
Price Drop
Warm Audio Passive Direct Box
Warm Audio Passive Direct Box
0 of 5 stars
Product Price  $149.00
$169.00
Price Drop
Behringer Utralink Pro MX882 V2 Rackmount Mixer/Splitter
Behringer Utralink Pro MX882 V2 Rackmount Mixer/Splitter
0 of 5 stars
Product Price  $112.98
$129.00
Price Drop
Warm Audio EQP-WA Tube EQ
Warm Audio EQP-WA Tube EQ
4.0 of 5 stars (5)
Product Price  $769.00
$799.00
Or $17/month^ with 48 month
financing* Limited Time. Details
Price Drop
Art Voice Channel Tube Mic Preamp
Art Voice Channel Tube Mic Preamp
5.0 of 5 stars (5)
Product Price  $649.99
$689.99
Price Drop
Art Tube MP Professional Mic Preamp/Processor
Art Tube MP Professional Mic Preamp/Processor
4.0 of 5 stars (33)
Product Price  $114.99
$129.99
Price Drop
Walrus Audio Canvas Stereo Dual Line Isolator/Direct Box
Walrus Audio Canvas Stereo Dual Line Isolator/Direct Box
0 of 5 stars
Product Price  $212.49
$249.99
Price Drop
PreSonus Studio Channel Tube Channel Strip
PreSonus Studio Channel Tube Channel Strip
4.5 of 5 stars (21)
Product Price  $349.99
$419.99
Price Drop
PreSonus TubePre V2 Single-Channel Tube Preamplifier/DI Box
PreSonus TubePre V2 Single-Channel Tube Preamplifier/DI Box
3.5 of 5 stars (7)
Product Price  $149.99
$209.99
Price Drop
PreSonus BlueTube DP V2 2-Channel Mic/Instrument Tube Preamp
PreSonus BlueTube DP V2 2-Channel Mic/Instrument Tube...
4.0 of 5 stars (4)
Product Price  $249.99
$314.99
Price Drop
Warm Audio WA-2MPX Dual-Channel Tube Mic Preamp
Warm Audio WA-2MPX Dual-Channel Tube Mic Preamp
0 of 5 stars
Product Price  $1,399.00
$1,499.00
Or $30/month^ with 48 month
financing* Limited Time. Details
Price Drop
Art P48 48-Point Patch Bay
Art P48 48-Point Patch Bay
0 of 5 stars
Product Price  $145.99
$159.99
Price Drop
Art PROSPLIT PROSPLIT HIGH PERFORMANCE MIC SPLITTER
Art PROSPLIT PROSPLIT HIGH PERFORMANCE MIC SPLITTER
0 of 5 stars
Product Price  $89.99
$99.99
Sale
dbx DriveRack VENU360 Speaker Management System
dbx DriveRack VENU360 Speaker Management System
0 of 5 stars
Product Price  $1,149.00
$1,290.00
Used Nady ADI-1 Direct Box
Used Nady ADI-1 Direct Box
Product Price  $29.99
$49.99
Excellent Condition
Used Warm Audio WA73 EQ Microphone Preamp
Used Warm Audio WA73 EQ Microphone Preamp
Product Price  $599.99
$689.99
Excellent Condition
Used Two Notes AUDIO ENGINEERING TORPEDO CAPTOR 16 Direct Box
Used Two Notes AUDIO ENGINEERING TORPEDO CAPTOR 16 Direct...
Product Price  $199.99
$214.99
Excellent Condition
Used Acoustic PBISO8 Patch Bay
Used Acoustic PBISO8 Patch Bay
Product Price  $69.99
$74.99
Excellent Condition
Used Golden Age Project PRE-73 MKIII Microphone Preamp
Used Golden Age Project PRE-73 MKIII Microphone Preamp
Product Price  $279.99
$299.99
Excellent Condition
Used Black Lion Audio Auteur MK2 Rack Equipment
Used Black Lion Audio Auteur MK2 Rack Equipment
Product Price  $199.99
$249.99
Excellent Condition
Used West Hills mp2a Microphone Preamp
Used West Hills mp2a Microphone Preamp
Product Price  $2,159.99
$2,399.99
Excellent Condition
Used West Hills hm2 compressor nail Compressor
Used West Hills hm2 compressor nail Compressor
Product Price  $1,979.99
$2,199.99
Excellent Condition
Used TC Electronic M350 Multi Effects Processor
Used TC Electronic M350 Multi Effects Processor
Product Price  $199.99
$274.99
Excellent Condition
Used Golden Age Project EQ 73 Equalizer
Used Golden Age Project EQ 73 Equalizer
Product Price  $499.99
$554.99
Excellent Condition
Used McDSP APB-16 Signal Processor
Used McDSP APB-16 Signal Processor
Product Price  $4,599.99
$5,199.99
Excellent Condition
Used DOD SR830QXLR Dual 15-Band Equalizer
Used DOD SR830QXLR Dual 15-Band Equalizer
Product Price  $69.99
$99.99
Excellent Condition
Used Avalon AD2044 Compressor
Used Avalon AD2044 Compressor
Product Price  $1,799.99
$2,249.99
Excellent Condition
Used MXR Dual Limiter Compressor
Used MXR Dual Limiter Compressor
Product Price  $399.99
$449.99
Excellent Condition
Used Heritage Audio Tubesessor Compressor
Used Heritage Audio Tubesessor Compressor
Product Price  $1,349.99
$1,499.99
Excellent Condition
Used Radial Engineering Q4 Rack Equipment
Used Radial Engineering Q4 Rack Equipment
Product Price  $399.99
$499.99
Excellent Condition
Used Carl Martin Acoustic Gig Direct Box
Used Carl Martin Acoustic Gig Direct Box
Product Price  $449.99
$549.99
Excellent Condition
Used Furman Q1312v Equalizer
Used Furman Q1312v Equalizer
Product Price  $149.99
$199.99
Excellent Condition
Used Rupert Neve Designs BAE 8-CHANNEL RACK (RACK ONLY WITH POWER SUPPLY) Rack Equipment
Used Rupert Neve Designs BAE 8-CHANNEL RACK (RACK ONLY WITH...
Product Price  $1,249.99
$1,749.99
Excellent Condition
Used Universal Audio Solo 610 Microphone Preamp
Used Universal Audio Solo 610 Microphone Preamp
Product Price  $699.99
$1,099.99
Excellent Condition
Used Cloud Cloudlifter CL-1 Microphone Preamp
Used Cloud Cloudlifter CL-1 Microphone Preamp
Product Price  $99.99
$109.99
Excellent Condition
Used American DJ Pow-r bar Signal Processor
Used American DJ Pow-r bar Signal Processor
Product Price  $74.99
$99.99
Excellent Condition
Used Rupert Neve Designs Portico 517 Microphone Preamp
Used Rupert Neve Designs Portico 517 Microphone Preamp
Product Price  $599.99
$699.99
Excellent Condition
Used AUDIO ACCESSORIES WDBP-9615-SH Patch Bay
Used AUDIO ACCESSORIES WDBP-9615-SH Patch Bay
Product Price  $2,249.99
$2,499.99
Excellent Condition
Used Radial Engineering JDX48 Direct Box
Used Radial Engineering JDX48 Direct Box
Product Price  $149.99
$169.99
Excellent Condition
Used Art AV Direct Direct Box
Used Art AV Direct Direct Box
Product Price  $34.99
$49.99
Excellent Condition
Used Slate Digital VMS ONE Microphone Preamp
Used Slate Digital VMS ONE Microphone Preamp
Product Price  $209.99
$249.99
Excellent Condition
Used Ashly Audio PROTEA System II 4.24GS Multi Effects Processor
Used Ashly Audio PROTEA System II 4.24GS Multi Effects...
Product Price  $109.99
$149.99
Excellent Condition
Used Radial Engineering JDV PRE AMP Rack Equipment
Used Radial Engineering JDV PRE AMP Rack Equipment
Product Price  $249.99
$350.99
Excellent Condition
Used Grace Design M303 Direct Box
Used Grace Design M303 Direct Box
Product Price  $249.99
$274.99
Excellent Condition
Used Line 6 Helix Rack Multi Effects Processor
Used Line 6 Helix Rack Multi Effects Processor
Product Price  $899.99
$1,049.99
Excellent Condition
Used Warm Audio WA2MPX Microphone Preamp
Used Warm Audio WA2MPX Microphone Preamp
Product Price  $949.99
$999.99
Excellent Condition
Used PreSonus TubePre V1 Microphone Preamp
Used PreSonus TubePre V1 Microphone Preamp
Product Price  $84.99
$99.99
Excellent Condition
Used Solid State Logic Analog 2U Stereo Outboard Processor Multi Effects Processor
Used Solid State Logic Analog 2U Stereo Outboard Processor...
Product Price  $1,599.99
$1,999.99
Excellent Condition
Used Wesaudio MIMAS Rack Equipment
Used Wesaudio MIMAS Rack Equipment
Product Price  $809.99
$899.99
Excellent Condition
Used PreSonus RM32AI Microphone Preamp
Used PreSonus RM32AI Microphone Preamp
Product Price  $649.99
$899.99
Excellent Condition