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Under $20 Signal Processors

Shop the best prices on 5,018 great value under $20 signal processors. Shopping for signal processors is easy with Fruugo, with SALE discounts, offers and savings on Anqing Cheng Bu, Kincjon, Hsmy and more. Buy signal processors online safely with Fruugo, with secure payment and fast shipping to Singapore.

CrossoversEffects ProcessorsMicrophone PreampsPhono PreampsEqualizers
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1 - 32 of 5,018
Guitar Noise Noise Gate Suppressor Effect Pedal P20250110873
$15.95 Save $38.05 RRP: $54.00
MAX9814 Microphone Amplifier Module MIC Microphone Sound Amplification for Audio Projects and Sound Systems
$8.95 Save $4.00 RRP: $12.95
2PCS 200W 3-Way Audio Hifi Filter Circuit Board Stereo Speaker Crossover Filters Treble/Bass 3 Unit Frequency Dividers
$9.95 Save $10.00 RRP: $19.95
Basket with Hook, Hang It Behind a Door or on a Railing, Black
$13.95 Save $2.00 RRP: $15.95
Basket with Hook, Hang It Behind a Door or on a Railing, Black fg2025031702764
$10.95 Save $40.00 RRP: $50.95
Phono Preamp with RCA and 1/4" TRS for Vinyl Turntables
$12.95 Save $15.00 RRP: $27.95
NE5532 Preamplifier Board Vinyl Record Player MM Phono Preamplifier Preamp Board NE5532 OP Amp Dual
$15.95 Save $68.05 RRP: $84.00
12V 4 Channel Car Audio Converter for Rca High to Low Line
$19.95 Save $4.00 RRP: $23.95
2Pcs 400W Speaker Crossover 2 Way Audio Adjustment Tweeter Bass Speakers Filter Frequency Divider fop
$17.95 Save $9.00 RRP: $26.95
For Aurelia Speaker 2-Way Crossover 200W Multi-Function Portable High-End Audio Dedicated Crossover
$17.95
YLY-2088 Audio Frequency Divider 400W Adjustable 2 Way Crossover Filters Full Range Treble Bass Frequency Divider
$15.95
1PCS 1.2A Equalizer Balancer Equalizer Module Li- Lifepo4 Lithium Battery Balancer BMS
$7.95 Save $4.00 RRP: $11.95
9-Pin 3PDT Foot Pedal Switch Stompbox For Electric Guitar Effects True Bypass Silver
$16.95
GH-S37A GH-S43A Micro Servo Motor Kit for RC Robot Arm/Hand/Walking Helicopter Airplane Car Boat Control with Cable
$20.95
Guitar Effect Pedal Footswitch Toppers Effect Pedal Protect Cap Footswitch Toppers Electric Guitar Pedal Foot Nail Cap Silver
$13.95 Save $2.00 RRP: $15.95
200W Speaker Crossover Double Treble+Midrange+Bass 4 Way Divider
$14.95 Save $9.00 RRP: $23.95
400W Crossover 2 Way High-Low 4-16 Ohm Frequency Divider for Speaker
$13.95 Save $8.00 RRP: $21.95
Second-Order Crossover Speaker Frequency Divider DIY Home Theater
$17.95 Save $9.00 RRP: $26.95
1 Pc Guitar Effects Pedal Aluminum Stomp Box Enclosure 1590BB
$14.95 Save $9.00 RRP: $23.95
Audio Speaker Frequency Divider Treble Bass 2 Unit Crossover
$8.95 Save $5.00 RRP: $13.95
Audio Speaker Frequency Divider Treble Bass TWS 2 Unit Crossover
$8.95 Save $5.00 RRP: $13.95
400W Crossover 2 Way High-Low 4-16 Ohm Frequency Divider for Speaker
$12.95 Save $7.00 RRP: $19.95
4-in-1 Feed Pipe Adapter for X1C P1P A1/A1 Mini Five-Way Feed Port Feed Pipe Connector
$11.95 Save $8.00 RRP: $19.95
Second-Order Crossover Speaker Frequency Divider DIY Home Theater
$17.95 Save $11.00 RRP: $28.95
Electric Guitar Effects Pedal Mini Analog Delay Bass Guitar Pedals Analog Delay
$21.95 Save $9.00 RRP: $30.95
Electric Guitar Effects Pedal Mini US Dream
$20.95 Save $12.00 RRP: $32.95
ES08MA II Servo Motor Metal Gear Servo ES08MA Servo 12g Servo Motor Torque 1.8kg Mini Metal Gear S
$10.95
200w 2 Way Hifi Speaker Frequency Dividers 2830hz For Aurelia Speaker Audio Crossover Filter Home T
$9.95
Electric Guitar Effect Pedal Toppers Guitar Effect Foot Nail Cap with Insert Screws Guitar Effect Make Cap Metal Buttons Silver
$15.95
5 Way Electrode Daisy Chain Cable for Guitar Effects Power Supply Adapter Splitter
$8.95
Operational Amplifier 2 Channel High Current Low Distortion Audio Amplification Module OPA1622
$12.95 Save $23.00 RRP: $35.95
YLY-2088 Audio Frequency Divider 400W Adjustable 2 Way Crossover Filters Full Range Treble Bass Fre
$10.95 Save $25.00 RRP: $35.95