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Under $20 Signal Processors

Shop the best prices on 2,412 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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33 - 64 of 2,412
Audio Speaker Frequency Divider Treble Bass 2 Unit Crossover
$13.95 Save $9.00 RRP: $22.95
4X Mini Preamp Op Amp Module Amplifier Dual Channel NE5532 Preamplifier Tone Board 5 Times Wide Volt
$20.95 Save $14.00 RRP: $34.95
400W Crossover 2 Way High-Low 4-16 Ohm Frequency Divider for Speaker
$16.95 Save $12.00 RRP: $28.95
Dual System PWM Pulse Frequency Signal Generator Duty Cycle Adjustable Module Square Wave Rectangular(XY-PWM1)
$6.95 Save $3.00 RRP: $9.95
3-Band Acoustic Guitar Preamp EQ Equalizer With Tone Volume Control Piezo Pickup Tuner For Sound Amplification
$16.95 Save $9.00 RRP: $25.95
2X Frequency Divider Hi-Fi Audio TREBLE BASS Speaker Frequency Divider Stereo Crossover Filters for 2-16Ohm Speaker
$20.95 Save $11.00 RRP: $31.95
2X 60W 2 Way Audio Speaker Frequency Divider Treble Bass TWS 2 Unit Crossover Accessory
$18.95 Save $10.00 RRP: $28.95
Dual Ne5532 Replaceable Tone Preamp Board Audio Treble Bass Adjustment Equalizer Preamplifier Tone Control Preamplifier
$10.95
5 Way 250w Crossover Filter Frequency Divider Four High One Low Hifi Filter Module Board For High Fidelity
$12.95
Yly-2088 Audio Frequency Divider 400w Adjustable 2 Way Crossover Filters Full Range Treble Bass Frequency Divider
$10.95
2PCS 6.35mm Effect Adapter Connector Noise Reduction Guitar Pedal Coulper Conversion PlugGold
$11.95 Save $13.00 RRP: $24.95
3X Guitar Effects 3PDT 9-Pin Latching Stomp Pedal Footswitch Foot Switch Blue
$18.95 Save $10.00 RRP: $28.95
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
$10.95
Protective Cover Soft Silicone Dustproof Remote Control Sleeve Cover Protector Compatible Apple TV 4K 2021
$9.95 Save $17.00 RRP: $26.95
Wireless Page Turner Pedal Rechargeable Wireless Foot Switch for Tablet Smartphone Electronic Music Edition 0710
$15.95 Save $38.05 RRP: $54.00
Vitoos 3 Ways Electrode Daisy Chain Harness Cable Copper Wire for Guitar Effects Power Supply Adapter Splitter blackblack SZRH A-D 63
$12.95 Save $41.05 RRP: $54.00
Dual Ne5532 Replaceable Tone Preamp Board Audio Treble Bass Adjustment Equalizer Preamplifier Tone Control Preamplifier
$10.95
5PCS DC 5V-15V AD828 Stereo Preamp Preamplifier Module AMP Module Microphone Preamp Module
$12.95 Save $7.00 RRP: $19.95
400W Speaker Crossover 2 Way High-Low 4-16 Ohm Frequency Divider for Speaker
$19.95
External USB Sound Card 7.1 Adapter 5HV2 3D Audio Headset Microphone 3.5mm for Laptop PC Desktop PC
$13.95
200W 40Hz-400Hz Bass Speaker Subwoofer Frequency Divider Home Theater Hifi Stereo DIY Car Audio Woofer Crossover Filter
$19.95
Dual System PWM Pulse Frequency Signal Generator Duty Cycle Adjustable Module Square Wave Rectangul
$15.95
NE5532 Speaker Crossover Filter Dual-channel 2.0 Stereo
$17.95
XH A902 NE5532 Operational Amplifier Module Power Preamplifier Tone Board Preamp
$15.95 Save $9.00 RRP: $24.95
2PCS 6.35mm Effect Adapter Connector Noise Reduction Guitar Pedal Coulper Conversion Plug
$19.95 Save $12.00 RRP: $31.95
2PCS 6.35mm Effect Adapter Connector Noise Reduction Guitar Pedal Coulper Conversion PlugSilver
$17.95 Save $10.00 RRP: $27.95
2PCS 6.35mm Effect Adapter Connector Noise Reduction Guitar Pedal Coulper Conversion PlugSilver
$17.95 Save $18.00 RRP: $35.95
Universal Banana Socket Connectors for Home Stereo Systems
$21.95 Save $6.00 RRP: $27.95
2-8pack 2 Pieces Guitar Effect Foot Nail Cap Protection Cap for Effects Pedal
$19.95 Save $6.00 RRP: $25.95
1590a Aluminum Guitar Effects Pedal Enclosure 92x38x31mm Unfinished Diecast Stomp Box For Guitar Effects
$18.95
10 Pcs Electret Microphone Amplifier Adjustable Max4466 Module Microphone Preamplifier Purple Breakout Board For
$15.95