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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 fg2025031702764
$10.95 Save $40.00 RRP: $50.95
Basket with Hook, Hang It Behind a Door or on a Railing, Black
$13.95 Save $2.00 RRP: $15.95
3.5 Postive Tip Power Supply Converter For Electro Harmonix Eh Dod Guitar Pedals (2 Pcs)
$18.95 Save $18.00 RRP: $36.95
5pcs Effect Pedal Connector Cables for Electric Guitars – Durable Jack Pedal Board Accessories with Space Saving Design for Professional Musicians &
$18.95 Save $6.00 RRP: $24.95
Microphone Preamp Board with Reverb Effect Karaoke Studio Audio Amplifier PT2399 NE5532
$15.95 Save $7.00 RRP: $22.95
Phono Turntable Preamp, Phonograph Preamplifier With R C A Input, Trs Output, For Turntable Record Play Us Plug
$20.95
Effect Pedal Power Supply Adapter 9V 1A for Electric Guitar Organ Keyboard Amplifier 100?240VUK Plug
$18.95 Save $18.00 RRP: $36.95
6PCS Guitar Effects Connection Cable Different Colors High Fidelity Noise Reduction Effect Pedal Cable Set
$18.95 Save $18.00 RRP: $36.95
150W HiFi Crossover Filter Module 3 Way Speaker Frequency Divider for DIY Home Speaker Treble Medium
$14.95
150W HiFi Crossover Filter Module 3 Way Speaker Frequency Divider for DIY Home Speaker Treble Medium
$15.95 Save $24.00 RRP: $39.95
5 Way 250w Crossover Filter Frequency Divider Four High One Low Hifi Filter Module Board For High Fidelity
$11.95
Servo Metal Gear 2kg/cm 2.8kg/cm 180 Degree Torque Digital Servo for Helicopter Plane Boat Car RC Robot
$11.95 Save $2.00 RRP: $13.95
15-48V Phantom Power Electret Condenser Microphone Amplifier Board
$13.95
For Irig Guitar Effects Replace Guitars With Phone Guitar Interface Converter
$2.95 Save $17.00 RRP: $19.95
Guitar Pedal Power Cord Black PVC Metal Cable for Guitar Use Durable Noise Isolation 1pc
$12.95 Save $4.00 RRP: $16.95
XLR-10X 1 Channel XLR Interface Balanced Audio Amplifier NE5532 Dynamic Mic Microphone Preamplifier
$18.95 Save $9.00 RRP: $27.95
20pcs Colorful Guitar Effect Pedal Footswitch Topper Foot Nail Cap Protection Cap For Guitar Effect
$5.95 Save $21.00 RRP: $26.95
10PCS Large Round Wire Bobbin Coil Rack Plastic Shelf Speaker Crossover Coil Skeletons Speaker Inductive Coil Bobbin
$15.95
4Pcs 6.5mm to 3.5mm Male to Female Electric Guitar Convertor Audio Adapter Head
$6.95 Save $11.00 RRP: $17.95
Dual NE5532 Replaceable Tone Preamp Board Audio Treble Bass Adjustment Equalizer Preamplifier Tone C Edition 0704
$10.95 Save $22.00 RRP: $32.95
Guitar Noise Noise Gate Suppressor Effect Pedal P20250110873
$20.95 Save $38.05 RRP: $59.00
5 Way 250W Crossover Filter Frequency Divider Four High One Low HiFi Filter Module Board for High Fidelity
$18.95 Save $6.00 RRP: $24.95
Guitar Effect Footswitch Topper Effect Foot Nail Cap Effect Pedal Topper Caps
$15.95
7.83hz Version Small Ultra-low Frequency Schumann Wave Pulse Generator Tools For Promoting Sleep For Insomniacs
$13.95 Save $6.00 RRP: $19.95
1590LB Guitar Effect Pedal Enclosure Diecast Metal Aluminum Stomp Box
$12.95 Save $2.00 RRP: $14.95
400w Speaker Crossover 2 Way High-low 4-16 Ohm Frequency Divider For Speaker
$17.95 Save $14.00 RRP: $31.95
2 Way Frequency Divider Electronic Active Crossover Dual Op Amp
$18.95 Save $3.00 RRP: $21.95
2Pcs 400W Speaker Crossover 2 Way Audio Adjustment Tweeter Bass Speakers Filter Frequency Divider fo
$16.95 Save $8.00 RRP: $24.95