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Under $20 Signal Processors

Shop the best prices on 2,377 great value under $20 signal processors. Shopping for signal processors is easy with Fruugo, with SALE discounts, offers and savings on Anqing Cheng Bu, Elriven, Lycxames and more. Buy signal processors online safely with Fruugo, with secure payment and fast shipping to New Zealand.

CrossoversEffects ProcessorsMicrophone PreampsPhono PreampsEqualizers
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1 - 32 of 2,377
MAX9814 Microphone Amplifier Module MIC Microphone Sound Amplification for Audio Projects and Sound Systems
$12.95 Save $5.00 RRP: $17.95
Guitar Noise Noise Gate Suppressor Effect Pedal P20250110873
$12.95 Save $76.05 RRP: $89.00
Phono Preamp with RCA and 1/4" TRS for Vinyl Turntables
$16.95 Save $20.00 RRP: $36.95
NE5532 Preamplifier Board Vinyl Record Player MM Phono Preamplifier Preamp Board NE5532 OP Amp Dual
$10.95 Save $14.00 RRP: $24.95
Basket with Hook, Hang It Behind a Door or on a Railing, Black
$18.95 Save $3.00 RRP: $21.95
9V replacement power supply compatible with TC-Helicon Harmony Singer 2 Vocal effects
$17.95 Save $101.05 RRP: $119.00
Basket with Hook, Hang It Behind a Door or on a Railing, Black fg2025031702764
$14.95 Save $59.05 RRP: $74.00
2PCS 200W 3-Way Audio Hifi Filter Circuit Board Stereo Speaker Crossover Filters Treble/Bass 3 Unit Frequency Dividers
$13.95 Save $13.00 RRP: $26.95
80W 2 Way/3 Way Audio Speaker Crossover Treble Bass Filter Frequency Divider
$21.95
5 Way Right Angle Pedal Power Daisy Chain Cable for Guitars and Basses Effect Pedals
$8.95 Save $65.05 RRP: $74.00
Guitar Nail Caps Effects Pedal Footswitch Topper Guitar Effect Foot Nail Caps
$3.95 Save $65.05 RRP: $69.00
Aluminum Box DIY Guitar Pedal Kit Guitar Pedal Enclosure Stomp Box Case Effector Box
$13.95 Save $65.05 RRP: $79.00
5PCS 6.35mm Interface Effect Pedal Connector Cable Adapter Jack Pedal Board Instrument Connector Accessories for Electric Guitar Silver
$12.95 Save $61.05 RRP: $74.00
Metal Guitar Pedal Coupler Double Head Guitar Effect Supply Effector Pedal Adapter
$6.95 Save $57.05 RRP: $64.00
10 Pcs Guitar Effect Footswitch Topper Foot Nail Pedal Topper Anti-Slip Colorful Protection for Guitar Pedal Effect Random Color
$9.95 Save $69.05 RRP: $79.00
Electric Guitar Effect Pedal Toppers Guitar Effect Foot Cap with Insert Screws Guitar Effect Make C
$10.95 Save $3.00 RRP: $13.95
Basket with Hook, Hang It Behind a Door or on a Railing, Black
$17.95 Save $17.00 RRP: $34.95
1 Pc Guitar Effects Pedal Aluminum Stomp Box Enclosure 1590BB
$16.95 Save $20.00 RRP: $36.95
3 Ways HiFi Speaker Frequency Divider HiFi Crossover Filter
$20.95 Save $28.00 RRP: $48.95
Frequency Capacitor Axial Audio Speaker Crossover for Industrial 2Pcs Pair
$14.95 Save $7.00 RRP: $21.95
Film Capacitor Pack of 2 for Audio Equipment Precision Axial Frequency Divider Enhanced Sound Transmission Speaker Crossover
$21.95 Save $12.00 RRP: $33.95
1590a Aluminum Guitar Effects Pedal Enclosure 92x38x31mm Unfinished Diecast Stomp Box For Guitar Effects
$18.95
4Pcs Guitar Effect Switches 9-Pin 3Pdt Guitar Effects Pedal Box Stomp Foot Metal Switch True Bypass
$19.95 Save $16.00 RRP: $35.95
25 Kg Digital Update Servo High Torque Full Metal Gear Waterproof For Rc Model Diy Digital Servo Motor , Control Angle 270
$15.95
Guitar Effect Footswitch Topper,Foot Nail Cap Pedal Topper,Protection Cap for Guitar Pedal Effect Anti-Slip Surfaces Yellow
$18.95
Guitar Pedal Power Cord Black PVC Metal Cable for Guitar Use Durable Noise Isolation 1pc
$17.95 Save $6.00 RRP: $23.95
Compact Phono Preamp with RCA & 1/4" TRS - Turntable Preamp PP400 for Vinyl Records
$17.95 Save $19.00 RRP: $36.95
Microphone Amplifier Module with MAX9814 Chipset
$14.95 Save $39.05 RRP: $54.00
Ktv Stage Professional Speaker Crossover Triple Crossover Crossov High Middle Low Crossover Crossover Module,a
$16.95
2 Way Audio Speaker 100W Crossover Treble Bass Module Audio Speaker Frequency Divider Adjust Bookshelf Speaker Filter
$15.95 Save $2.00 RRP: $17.95
DIY Pure Tweeter Crossover 80W High-Fidelity Car Audio Treble Crossover Ideal for DIY Home & Stage Audio Systems
$20.95 Save $11.00 RRP: $31.95
Professional 4-Way Crossover for Home Theater Speaker Setup
$16.95 Save $57.05 RRP: $74.00