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Under $20 Signal Processors

Shop the best prices on 2,177 great value under $20 signal processors. Shopping for signal processors is easy with Fruugo, with SALE discounts, offers and savings on Anqing Cheng Bu, Lycxames, Pureliving 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 2,177
High Frequency Speaker Protection Board Professional Anti-Burn Bass Protector Crossover Tweeter Protection Board DC44
$14.95 Save $9.00 RRP: $23.95
1 to 5 Way Daisy Chain Cable Universal Guitar Effect Pedal Power Supply Splitter Cable for DC Adapter
$17.95 Save $11.00 RRP: $28.95
1 to 8 Way Daisy Chain Cable Guitar Effect Pedal Power Supply Splitter Cable for Guitar Effect Board
$19.95 Save $12.00 RRP: $31.95
Electric Guitar Effect Pedal Toppers Guitar Effect Foot Nail Cap with Insert Screws Guitar Effect Make Cap Metal Buttons Silver
$20.95 Save $1.00 RRP: $21.95
Guitar Pedal Power Supply Adapter 9v Dc Tip Negative 5 Way Daisy Chain Cables For Guitar Effect Pedal.eu Plug
$18.95
Guitar Pedal 2 Pin SPST Momentary Effects Push Button Foot Switch
$19.95 Save $1.00 RRP: $20.95
Guitar Potentiometer Splined Pot Electric Guitar Bass Effect Amp
$10.95
Harness Wire for Guitar Effects Power Supply Adapter
$18.95 Save $1.00 RRP: $19.95
2pcs 22.5W Power Bank Bidirectional Fast Charging Mobile Power Module Circuit Board,Suppor PD/QC3.0
$19.95 Save $7.00 RRP: $26.95
60W 2 Way Audio Speaker Frequency Divider Treble Bass TWS 2 Unit Crossover Accessory
$9.95 Save $5.00 RRP: $14.95
2.1 Channel Subwoofer Preamp Board Low Pass Filter Pre-Amp Amplifier Board Ne5532 Low Pass Filter Bass Preamplifier
$20.95
130W Speaker Crossover 2 Way High-Low 8 Ohm Frequency Divider for 6 Inch Speaker
$20.95
Wire Twisting Tool, 3 Way/ 5 Way Wire Stripping Tool and 6mm Hex Shank Cable Twister Tool, for Power
$20.95 Save $10.00 RRP: $30.95
Guitar Patch Connector Effect Pedal Connector Guitar Pedal Connector 6.35mm Pedal Coupler
$7.95 Save $29.00 RRP: $36.95
Audio Speaker Frequency Divider Treble Bass 2 Unit Crossover
$12.95 Save $9.00 RRP: $21.95
4X Mini Preamp Op Amp Module Amplifier Dual Channel NE5532 Preamplifier Tone Board 5 Times Wide Volt
$19.95 Save $14.00 RRP: $33.95
2X 60W 2 Way Audio Speaker Frequency Divider Treble Bass TWS 2 Unit Crossover Accessory
$13.95 Save $10.00 RRP: $23.95
Vinyl Record Player Vinyl Phono Preamplifier Board MM MC Phono Player Amplifier Board Phonograph Head Amplifier F10-006
$17.95 Save $12.00 RRP: $29.95
80W Audio Speaker Crossover High Low Two-Way Audio Crossover Home Speakers Filter for Center Bookshelf Speaker
$11.95 Save $7.00 RRP: $18.95
5PCS DC 5V-15V AD828 Stereo Preamp Preamplifier Module AMP Module Microphone Preamp Module
$10.95 Save $7.00 RRP: $17.95
200W Speaker Crossover Double Treble+Midrange+Bass 4 Way Speaker Audio Frequency Divider Home Theater Speaker Divider
$17.95 Save $12.00 RRP: $29.95
400W 2 Way Audio Speaker Divider Treble Bass Frequency Divider High Power KTV Stage Professional Speaker Crossover
$15.95 Save $12.00 RRP: $27.95
XH-M273 Microphone Amplifier Board DC 12-24V Digital Preamplifier Board Karaoke Reverberation Microphone Control
$14.95 Save $13.00 RRP: $27.95
1 Pc Guitar Effects Pedal Aluminum Stomp Box Enclosure for DIY Guitar Pedal Kit 1590B
$17.95
5pcs Guitar Effect Pedal Footswitch Toppers Electric Guitar Foot Caps Guitar Pedal Protectors
$20.95 Save $48.05 RRP: $69.00
2PCS 6.35mm Effect Adapter Connector Noise Reduction Guitar Pedal Coulper Conversion PlugGold
$11.95 Save $12.00 RRP: $23.95
Hifi Frequency Divider Bookshelf Speaker Dedicated Crossover Fever Adjustable One High One Low Two
$8.95
2 Way Audio Crossover Divider 250w 2500hz-3000hz Frequency Diy Speaker Filter Home Theater Hifi Stereo Crossover Filters
$9.95
Protective Cover Soft Silicone Dustproof Remote Control Sleeve Cover Protector Compatible Apple TV 4K 2021
$9.95 Save $16.00 RRP: $25.95
Dual Ne5532 Replaceable Tone Preamp Board Audio Treble Bass Adjustment Equalizer Preamplifier Tone Control Preamplifier
$9.95
5PCS DC 5V-15V AD828 Stereo Preamp Preamplifier Module AMP Module Microphone Preamp Module
$12.95 Save $6.00 RRP: $18.95
Adjustable Multi Speaker Audio Frequency Divider Board Highs and Lows 2 Way Crossover Filters for Home Amplifiers
$19.95