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

(2234 Items)

  • Direct Boxes

    Direct Boxes

  • Equalizers

    Equalizers

  • Compressors & Limiters

    Compressors & Limiters

  • 500 Series Gear

    500 Series Gear
48-Month Financing*
API Select SR22 Dual-Channel Compressor
API Select SR22 Dual-Channel Compressor
0 of 5 stars
Product Price  $1,295.00
Or $26.98/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Rupert Neve Designs 5211 2-Channel Microphone Preamp
Rupert Neve Designs 5211 2-Channel Microphone Preamp
0 of 5 stars
Product Price  $1,999.00
Or $41.65/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
API 565 500 Series Filter Bank
API 565 500 Series Filter Bank
0 of 5 stars
Product Price  $595.00
Or $12.40/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
API 535-LA 500 Series Line Amplifier
API 535-LA 500 Series Line Amplifier
0 of 5 stars
Product Price  $595.00
Or $12.40/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
API 3124MV Discrete 4-Channel Mic/Line Preamp w/Stereo Mixer
API 3124MV Discrete 4-Channel Mic/Line Preamp w/Stereo...
0 of 5 stars
Product Price  $3,795.00
Or $79.07/month^ with 48 month
financing* Limited Time. Details
Radial Engineering HotShot 48V Condenser Microphone Switcher
Radial Engineering HotShot 48V Condenser Microphone...
0 of 5 stars
Product Price  $319.99
48-Month Financing*
SPL Track One 2960
SPL Track One 2960
0 of 5 stars
Product Price  $1,399.00
Or $29.15/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Radial Engineering SW8-USB Auto-Switcher and USB Interface
Radial Engineering SW8-USB Auto-Switcher and USB Interface
0 of 5 stars
Product Price  $2,199.99
Or $45.84/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Heritage Audio RAM System 500 Series Monitoring Module
Heritage Audio RAM System 500 Series Monitoring Module
0 of 5 stars
Product Price  $599.00
Or $12.48/month^ with 48 month
financing* Limited Time. Details
Price Drop
Heritage Audio HA73 Elite Microphone Preamp
Heritage Audio HA73 Elite Microphone Preamp
0 of 5 stars
Product Price  $599.00
$649.00
Or $12.48/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Charter Oak Acoustics MPA-1 Dual Channel Microphone Preamp
Charter Oak Acoustics MPA-1 Dual Channel Microphone Preamp
0 of 5 stars
Product Price  $1,999.00
Or $41.65/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Black Lion Audio Auteur Quad Mic Preamp and DI
Black Lion Audio Auteur Quad Mic Preamp and DI
5.0 of 5 stars (1)
Product Price  $799.00
Or $16.65/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
RME Micstasy M 8-Channel 24 Bit 192Khz Preamp 64 MADI
RME Micstasy M 8-Channel 24 Bit 192Khz Preamp 64 MADI
0 of 5 stars
Product Price  $4,599.00
Or $95.82/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Radial Engineering SW8 8-Channel Passive Auto Switcher
Radial Engineering SW8 8-Channel Passive Auto Switcher
0 of 5 stars
Product Price  $1,399.99
Or $29.17/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Palmer Audio Palmer Audio PAN 08 4 Channel Active Direct/Line Isolation Box
Palmer Audio Palmer Audio PAN 08 4 Channel Active...
0 of 5 stars
Product Price  $519.99
Or $10.84/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Radial Engineering Twin-Servo 500 Series Preamplifier
Radial Engineering Twin-Servo 500 Series Preamplifier
0 of 5 stars
Product Price  $899.99
Or $18.75/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Chandler Limited Germanium Preamp/DI
Chandler Limited Germanium Preamp/DI
4.5 of 5 stars (2)
Product Price  $1,195.00
Or $24.90/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Millennia STT-1 Origin All-In-One Recording Front End
Millennia STT-1 Origin All-In-One Recording Front End
5.0 of 5 stars (1)
Product Price  $4,050.00
Or $84.38/month^ with 48 month
financing* Limited Time. Details
BAE VGDI Direct Box
BAE VGDI Direct Box
0 of 5 stars
Product Price  $160.00
48-Month Financing*
dbx Drive Rack 260 with RTA-M Reference Mic
dbx Drive Rack 260 with RTA-M Reference Mic
5.0 of 5 stars (1)
Product Price  $955.00
Or $19.90/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
BAE 6-Space 500 Series Rack
BAE 6-Space 500 Series Rack
0 of 5 stars
Product Price  $675.00
Or $14.07/month^ with 48 month
financing* Limited Time. Details
(1) Open Box:
$540.00
Radial Engineering Cherry Picker Studio Preamp Selector
Radial Engineering Cherry Picker Studio Preamp Selector
0 of 5 stars
Product Price  $439.99
Radial Engineering JS2 Passive Microphone Splitter Direct Box
Radial Engineering JS2 Passive Microphone Splitter Direct...
5.0 of 5 stars (1)
Product Price  $274.99
48-Month Financing*
Empirical Labs FATSO EL7X Full Analog Tape Simulator and Optimizer
Empirical Labs FATSO EL7X Full Analog Tape Simulator and...
0 of 5 stars
Product Price  $2,449.00
Or $51.03/month^ with 48 month
financing* Limited Time. Details
Radial Engineering JDI Duplex Stereo Direct Box
Radial Engineering JDI Duplex Stereo Direct Box
5.0 of 5 stars (3)
Product Price  $459.99
Radial Engineering TWIN ISO Passive Line-Level Isolator
Radial Engineering TWIN ISO Passive Line-Level Isolator
5.0 of 5 stars (1)
Product Price  $329.99
Radial Engineering ProRMP/DI Re-Amping Passive Direct Box Pack
Radial Engineering ProRMP/DI Re-Amping Passive Direct Box...
0 of 5 stars
Product Price  $179.99
48-Month Financing*
Manley Stereo Variable Mu Limiter Compressor
Manley Stereo Variable Mu Limiter Compressor
5.0 of 5 stars (1)
Product Price  $4,999.00
Or $104.15/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Galaxy Audio DSPOT DS-SP36 3x6 Digital Speaker Processor
Galaxy Audio DSPOT DS-SP36 3x6 Digital Speaker Processor
0 of 5 stars
Product Price  $647.99
Or $13.50/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Summit Audio TD-100 Instrument Preamp and Tube Direct Box
Summit Audio TD-100 Instrument Preamp and Tube Direct Box
5.0 of 5 stars (4)
Product Price  $899.99
Or $18.75/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Elysia Nvelope Stereo Impulse Shaper Module with Dual EQ Capabilities
Elysia Nvelope Stereo Impulse Shaper Module with Dual EQ...
0 of 5 stars
Product Price  $1,499.00
Or $31.23/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Drawmer SP2120 Speaker Protector
Drawmer SP2120 Speaker Protector
0 of 5 stars
Product Price  $949.00
Or $19.78/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
BAE 1032 Rackmount
3 Styles Available
BAE 1032 Rackmount
0 of 5 stars
from  Product Price  $3,985.00
Or $83.03/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
BAE Desktop Lunchbox with 312A Module(s)
2 Styles Available
BAE Desktop Lunchbox with 312A Module(s)
0 of 5 stars
from  Product Price  $1,100.00
Or $22.92/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
BAE 1073 Dual DMP
BAE 1073 Dual DMP
0 of 5 stars
Product Price  $2,395.00
Or $49.90/month^ with 48 month
financing* Limited Time. Details
Radial Engineering PRO ISO Stereo Line Isolator +4dB to -10dB with Radial Transformer
Radial Engineering PRO ISO Stereo Line Isolator +4dB to...
0 of 5 stars
Product Price  $199.99
48-Month Financing*
Summit Audio DCL-200 Dual-Channel Compressor/Limiter
Summit Audio DCL-200 Dual-Channel Compressor/Limiter
0 of 5 stars
Product Price  $4,749.99
Or $98.96/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Summit Audio TPA-200B DualTube Preamp
Summit Audio TPA-200B DualTube Preamp
0 of 5 stars
Product Price  $3,649.99
Or $76.05/month^ with 48 month
financing* Limited Time. Details
(1) Open Box:
$2,559.99
48-Month Financing*
Tube-Tech CL 1B Compressor
Tube-Tech CL 1B Compressor
0 of 5 stars
Product Price  $4,150.00
Or $86.46/month^ with 48 month
financing* Limited Time. Details
48-Month Financing*
Manley Massive Passive Stereo EQ - Mastering Version
Manley Massive Passive Stereo EQ - Mastering Version
5.0 of 5 stars (2)
Product Price  $8,399.00
Or $174.98/month^ with 48 month
financing* Limited Time. Details