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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
Phono Preamp with RCA and 1/4" TRS for Vinyl Turntables
$12.95 Save $15.00 RRP: $27.95
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
2X 400W Speaker Crossover 2 Way High-Low 4-16 Ohm Frequency Divider for Speaker
$15.95 Save $9.00 RRP: $24.95
200w 2 Way Hifi Speaker Frequency Dividers 2800hz For Aurelia Speaker Audio Crossover Filter Home T
$8.95
Servo Metal Gear 2kg/cm 2.8kg/cm 180 Degree Torque Digital Servo For Helicopter Plane Boat Car Rc Robot
$4.95
Junction Box IP68 Waterproof 3 Way Outdoor Electrical Connector for 5 to 9mm 9 to 12mm 12 to 15mm Cable
$17.95 Save $17.00 RRP: $34.95
Guitar Pedals Footswitches Electric Guitar Effects Pedal Box True Bypass For Musicians Blue 1Set
$13.95 Save $5.00 RRP: $18.95
Ultra-Compact Phono Preamp with RCA Input & Output, 1/4-Inch TRS Interfaces for Turntable, PP400
$15.95 Save $25.00 RRP: $40.95
AT24C32 Module High Precision Clock Module With Battery&Leap Year Compensation
$9.95 Save $9.00 RRP: $18.95
For Irig Guitar Effects Replace Guitars With Phone Guitar Interface Converter-xinhan
$10.95 Save $11.00 RRP: $21.95
Pc Guitar Effects Pedal Aluminum Stomp Box Enclosure for DIY Guitar Pedal Kit 1590B
$8.95
150w Multi Speaker Audio Frequency Divider 3 Way Crossover Filters Acoustic Components
$5.95 Save $6.00 RRP: $11.95
12V Digital Soil Humidity Sensor Controller for Automatic Irrigation Water Management System with Re
$9.95 Save $1.00 RRP: $10.95
Icl8038 High Precision Adjustable Signal Generator Diy Kit Sinusoidal Triple-cornered Square Output
$19.95 Save $13.00 RRP: $32.95
Guitar Effect Pedal Power Supply Adapter 9V Battery Converter
$18.95 Save $5.00 RRP: $23.95
NE5532 Preamplifier Board Vinyl Record Player MM Phono Preamplifier Preamp Board NE5532 OP Amp Dualred SZRH
$9.95 Save $34.00 RRP: $43.95
Phono Turntable Preamp - Mini Electronic Audio Stereo Phonograph Preamplifier With Rca Input, Rca Output & Low Noise Operation Powered By 12 Volt Dc A
$17.95 Save $20.00 RRP: $37.95
Junction Box IP68 Waterproof 3 Way Outdoor Electrical Connector for 5 to 9mm 9 to 12mm 12 to 15mm Cable
$11.95 Save $10.00 RRP: $21.95
10Pieces Premium Round Bobbin Wire Coil Frames Speaker Crossover Coil Inductance Skeleton Audio DIY Accessories
$15.95
5PCS 6.35mm Interface Effect Pedal Connector Cable Adapter Jack Pedal Board Instrument Connector Accessories for Electric Guitar Golden
$9.95 Save $44.05 RRP: $54.00
Guitar Nail Caps Effects Pedal Footswitch Topper Guitar Effect Foot Nail Caps
$2.95 Save $50.00 RRP: $52.95
Guitar Patch Connector Effect Pedal Connector Guitar Pedal Connector 6.35mm Pedal Coupler
$4.95 Save $44.00 RRP: $48.95
5PCS 6.35mm Jack Effect Pedal Connector Instrument Connector Coulper Interface Cable Adaptor Pedal Board Accessories for Electric Guitar Golden
$10.95 Save $48.05 RRP: $59.00
Aluminum Stomp Box Metal Guitar Effect Box Guitar Pedal Enclosure Replacement
$11.95 Save $52.05 RRP: $64.00
5pcs Guitar Effect Pedal Footswitch Toppers Electric Guitar Foot Caps Guitar Pedal Protectors
$7.95 Save $41.00 RRP: $48.95
High Torque Digital Servo for DIY RC Boats and Cars
$13.95 Save $36.00 RRP: $49.95
IK iRig Guitar-to-Phone Converter - Compatible with Guitar Effects Apps
$14.95 Save $35.00 RRP: $49.95
Rechargeable Wireless Foot Pedal for Tablet, Smartphone, and Electronic Music Devices
$20.95 Save $12.00 RRP: $32.95