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?
 Summer Sale - Up to 50% off! - Shop Now. Call 888-688-0208 or chat for exclusive savings. Summer Sale - Up to 50% off! - Shop Now
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

(199 Items)

  • Direct Boxes

    Direct Boxes

  • Equalizers

    Equalizers

  • Compressors & Limiters

    Compressors & Limiters

  • 500 Series Gear

    500 Series Gear
Clear All
Price Drop
Warm Audio WA73-EQ One-Channel British Mic Pre & EQ
Warm Audio WA73-EQ One-Channel British Mic Pre & EQ
5.0 of 5 stars (3)
Product Price  $599.00
$895.99
Or $13/month^ with 48 month
financing* Limited Time. Details
Sale
Livewire SPDI Passive Direct Box With Attenuation Pad
Livewire SPDI Passive Direct Box With Attenuation Pad
4.5 of 5 stars (54)
Product Price  $29.99
$39.99
Sale
Livewire PDI Double-Shielded Heavy-Duty Passive Direct Box
Livewire PDI Double-Shielded Heavy-Duty Passive Direct Box
4.5 of 5 stars (26)
Product Price  $29.99
$49.99
Price Drop
ART TPS II 2-Channel Variable Impedance Tube Preamp
ART TPS II 2-Channel Variable Impedance Tube Preamp
4.0 of 5 stars (35)
Product Price  $269.99
$344.99
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
Warm Audio WA12 MKII Mic Pre - Black
Warm Audio WA12 MKII Mic Pre - Black
0 of 5 stars
Product Price  $440.78
$549.00
Sale
PreSonus Studio Channel Tube Channel Strip
PreSonus Studio Channel Tube Channel Strip
4.5 of 5 stars (21)
Product Price  $349.99
$419.99
Or $15/month^ with 24 month
financing* Limited Time. Details
Price Drop
BOSS VE-500 Vocal Performer Effects Stompbox
BOSS VE-500 Vocal Performer Effects Stompbox
3.5 of 5 stars (3)
Product Price  $480.47
$527.99
Price Drop
ART PDB4 Passive Direct Box
ART PDB4 Passive Direct Box
4.5 of 5 stars (2)
Product Price  $125.99
$144.99
Price Drop
Warm Audio WA73 1-Channel British Mic Pre
Warm Audio WA73 1-Channel British Mic Pre
3.0 of 5 stars (2)
Product Price  $569.05
$599.00
Or $12/month^ with 48 month
financing* Limited Time. Details
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
Harrison D510 10x14 Dante Interface Card for the D510r Rack (1G Ethernet)
Harrison D510 10x14 Dante Interface Card for the D510r Rack...
0 of 5 stars
Product Price  $999.99
$1,599.99
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
dbx DriveRack 260 Complete Equalization and Loudspeaker Control System
dbx DriveRack 260 Complete Equalization and Loudspeaker...
5.0 of 5 stars (3)
Product Price  $900.97
$945.00
Price Drop
ART SCL2 Compressor
ART SCL2 Compressor
5.0 of 5 stars (1)
Product Price  $199.99
$229.99
Sale
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 WA76-A2 Dual-Channel Vintage-Voiced Discrete FET Compressor
Warm Audio WA76-A2 Dual-Channel Vintage-Voiced 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 WA-2MPX Dual-Channel Tube Mic Preamp
Warm Audio WA-2MPX Dual-Channel Tube Mic Preamp
0 of 5 stars
Product Price  $1,329.05
$1,499.00
Or $28/month^ with 48 month
financing* Limited Time. Details
Sale
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
Used Lindell Audio RE-51 Rack Equipment
Used Lindell Audio RE-51 Rack Equipment
Product Price  $349.99
$429.99
Excellent Condition
Used AEA Microphones RPQ500 API 500 Module Microphone Preamp
Used AEA Microphones RPQ500 API 500 Module Microphone...
Product Price  $449.99
$499.99
Excellent Condition
Used Avalon V5 Pure Class A Mono Channel Strip
Used Avalon V5 Pure Class A Mono Channel Strip
Product Price  $1,399.99
$1,499.99
Excellent Condition
Used Warm Audio WA37-EQ Equalizer
Used Warm Audio WA37-EQ Equalizer
Product Price  $624.99
$699.99
Excellent Condition
Used Carl Martin Acoustic Gig Direct Box
Used Carl Martin Acoustic Gig Direct Box
Product Price  $499.99
$549.99
Excellent Condition
Used Furman Q1312v Equalizer
Used Furman Q1312v Equalizer
Product Price  $179.99
$199.99
Excellent Condition
Used Heritage Audio Tubesessor Optical Tube Compressor Compressor
Used Heritage Audio Tubesessor Optical Tube Compressor...
Product Price  $1,299.99
$1,399.99
Excellent Condition
Used Golden Age Project Comp-3A Compressor
Used Golden Age Project Comp-3A Compressor
Product Price  $440.99
$489.99
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  $1,449.99
$1,749.99
Excellent Condition
Used Universal Audio Solo 610 Microphone Preamp
Used Universal Audio Solo 610 Microphone Preamp
Product Price  $799.99
$1,099.99
Excellent Condition
Used Tip Top Zverb Effects Processor
Used Tip Top Zverb Effects Processor
Product Price  $89.99
$174.99
Excellent Condition
Used Tip Top Trigger Riot Multi Effects Processor
Used Tip Top Trigger Riot Multi Effects Processor
Product Price  $199.99
$329.99
Excellent Condition
Used Intellijel Atlantis Vocal Processor
Used Intellijel Atlantis Vocal Processor
Product Price  $399.99
$599.99
Excellent Condition
Used Doefer A-111-6 Vocal Processor
Used Doefer A-111-6 Vocal Processor
Product Price  $179.99
$244.99
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 Rupert Neve Designs PORTICO II MASTER BUSS PROCESSOR Compressor
Used Rupert Neve Designs PORTICO II MASTER BUSS PROCESSOR...
Product Price  $3,299.99
$3,499.99
Excellent Condition
Used Golden Age Project Comp LA3A Compressor
Used Golden Age Project Comp LA3A Compressor
Product Price  $399.99
$459.99
Excellent Condition
Used Nady Audio SMPS-2x Microphone Preamp
Used Nady Audio SMPS-2x Microphone Preamp
Product Price  $39.99
$49.99
Excellent Condition
Used Radial Engineering JDV PRE AMP Rack Equipment
Used Radial Engineering JDV PRE AMP Rack Equipment
Product Price  $274.99
$350.99
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 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  $1,699.99
$1,999.99
Excellent Condition
Used PreSonus RM32AI Microphone Preamp
Used PreSonus RM32AI Microphone Preamp
Product Price  $809.99
$899.99
Excellent Condition
Used Universal Audio LA-610 MK2 Compressor
Used Universal Audio LA-610 MK2 Compressor
Product Price  $1,619.99
$1,799.99
Excellent Condition
Used Barcus Berry 4000BRB Planar Wave System Microphone Preamp
Used Barcus Berry 4000BRB Planar Wave System Microphone...
Product Price  $179.99
$299.99
Excellent Condition
Used Soundcraft Mini Stagebox 16 Signal Processor
Used Soundcraft Mini Stagebox 16 Signal Processor
Product Price  $949.99
$1,099.99
Excellent Condition
Used Cloud cloudlifter x Microphone Preamp
Used Cloud cloudlifter x Microphone Preamp
Product Price  $149.99
$199.99
Excellent Condition
Extra 10% Off
Used Bxb PA-5120 Equalizer
Used Bxb PA-5120 Equalizer
Product Price  $49.99
$149.99
Excellent Condition
Extra 10% Off
Used Bxb PA-5120 Equalizer
Used Bxb PA-5120 Equalizer
Product Price  $49.99
$129.99
Excellent Condition
Extra 10% Off
Used Avalon VT747SP Pure Class A Vacuum Tube Channel Strip
Used Avalon VT747SP Pure Class A Vacuum Tube Channel Strip
Product Price  $1,988.99
$2,209.99
Excellent Condition
Extra 10% Off
Used Whirlwind Da-2 Microphone Preamp
Used Whirlwind Da-2 Microphone Preamp
Product Price  $566.99
$699.99
Excellent Condition
Extra 10% Off
Used Chameleon Labs 581 500 series class ab Rack Equipment
Used Chameleon Labs 581 500 series class ab Rack Equipment
Product Price  $399.99
$499.99
Excellent Condition
Extra 10% Off
Used Chameleon Labs 581 500 series class ab Rack Equipment
Used Chameleon Labs 581 500 series class ab Rack Equipment
Product Price  $399.99
$499.99
Excellent Condition
Extra 10% Off
Used Slate Digital vms one Microphone Preamp
Used Slate Digital vms one Microphone Preamp
Product Price  $189.99
$299.99
Excellent Condition
Used Biamp MR / 140 Professional Reverb Effects Processor
Used Biamp MR / 140 Professional Reverb Effects Processor
Product Price  $289.99
$334.99
Great Condition
Used DOD 265 direct box Direct Box
Used DOD 265 direct box Direct Box
Product Price  $34.99
$40.99
Great Condition
Used Drawmer MX60 Channel Strip
Used Drawmer MX60 Channel Strip
Product Price  $699.99
$799.99
Great Condition
Used Hughes & Kettner RED BOC CLASSIC Direct Box
Used Hughes & Kettner RED BOC CLASSIC Direct Box
Product Price  $49.99
$59.99
Great Condition
Used Solid State Logic UC1 Channel Strip
Used Solid State Logic UC1 Channel Strip
Product Price  $449.99
$629.99
Great Condition
Used Yamaha SPX900 Effects Processor
Used Yamaha SPX900 Effects Processor
Product Price  $349.99
$379.99
Great Condition