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Under $20 Signal Processors

Shop the best prices on 4,982 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, Elsavct 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 3,200
125hz 800w Pure Subwoofer Crossover With Cable Woofer Subwoofer Frequency Wyelv 26s
$15.95 Save $15.00 RRP: $30.95
9V Adapter Guitar Pedal Power Supply compatible Boss PSA-120S ME-80 ME-70 ME-25 ME-50B GT-100 GT-1 GT-10 AD-10 BR-80 BR-600 DB-88
$19.95 Save $25.00 RRP: $44.95
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
Guitar Noise Noise Gate Suppressor Effect Pedal P20250110873
$15.95 Save $38.05 RRP: $54.00
MA400 Headphone Preamplifier Microphone Preamplifier Audio 6.35mm & 3.5mm Headphone Outputs Mixer US Plug
$19.95 Save $8.00 RRP: $27.95
Guitar Noise Noise Gate Suppressor Effect Pedal P20250110873
$16.95 Save $42.05 RRP: $59.00
High Frequency Speaker Protection Board Professional Anti-Burn Bass Protector Crossover Tweeter Protection Board DC44
$10.95 Save $7.00 RRP: $17.95
6PCS Guitar Effect Pedal Connector Pedal Couplers Connector Plug
$22.95
Box M1 MM Phono Preamp for Turntable Phonograph Preamplifier Mini
$20.95
Basket with Hook, Hang It Behind a Door or on a Railing, Black
$13.95 Save $2.00 RRP: $15.95
Electric Guitar Effects Pedal Mini US Dream
$18.95
2X 59Hz-234Hz Low-Pass Filter Super Bass Crossover Board AC9V-12V Dual NE5532 Crossover Point Continuously Adjustable
$22.95
WEAH-332 200W 3 Way Crossover 2 Midrange 1 Treble Frequency Divider Audio Speaker Crossover KTV Crossover Model A
$17.95
Adjustable Multi Speaker Audio Frequency Divider Board Highs and Lows 2 Way Crossover Filters for Home Amplifiers
$14.95
Electric Guitar Effect Pedal Toppers Guitar Effect Foot Nail Cap with Insert Screws Guitar Effect Make Cap Metal Buttons Silver
$14.95 Save $1.00 RRP: $15.95
400w Adjustable Speaker Crossover 2 Way Treble/bass 2 Unit Audio Frequency Divider Distributor Filt
$20.95
1590A Aluminum Guitar Effects Pedal Enclosure 92x38x31mm Unfinished Diecast Stomp Box for Guitar Effects
$15.95
AROMa ADC-M5 Daisy Chain Power Cable 5 Ways for Guitar or Bass Effect Pedals
$4.95
PP500 Ultra-Compact Phono Preamp Pre Amp Preamplifier with Level Volume Control EU Plug
$11.95
Dual System PWM Pulse Frequency Signal Generator Duty Cycle Adjustable Module Square Wave Rectangular(XY-PWM1)
$19.95 Save $7.00 RRP: $26.95
New 2-Wire 4-20MA Current Signal Generator Panel-Mounted Current Loop Generator 4 to 20MA Simulator
$17.95 Save $41.05 RRP: $59.00
PP500 Ultra-Compact Phono Preamp Pre Amp Preamplifier EU Plug
$16.95 Save $1.00 RRP: $17.95
YLY-2088 Audio Frequency Divider 400W Adjustable 2 Way Crossover Filters Full Range Treble Bass Fre
$18.95 Save $9.00 RRP: $27.95
XLR-10X 1 Channel XLR Interface Balanced Audio Amplifier NE5532 Dynamic Mic Microphone Preamplifier_yyc
$17.95 Save $56.05 RRP: $74.00
2pcs 400w Speaker Crossover 2 Way Audio Adjustment Tweeter Speakers Filter Frequency Divider For 2
$13.95 Save $6.00 RRP: $19.95
2pcs 150w 3 Way Audio Speaker Crossover Midrange Bass Bookshelf Car Speakers Filter Frequency Divid
$18.95 Save $10.00 RRP: $28.95
XLR-10X 1 Channel XLR Interface Balanced Audio Amplifier NE5532 Dynamic Mic Microphone Preamplifier_c*
$17.95 Save $56.05 RRP: $74.00
T-248 2-Channel Frequency Divider 400W High-Power Ultra-Tweeter Crossover HiFi High-Fidelity Speaker Adjustable Divider
$15.95
12V 4 Channel Car Audio Converter for Rca High to Low Line
$19.95 Save $4.00 RRP: $23.95
High-Torque Waterproof RC Servo Motor for Metal Gear Applications
$16.95 Save $10.00 RRP: $26.95
XG-7 Guitar Single Effects Pedal PURE BOOSTER Pedal Guitar Parts
$20.95 Save $20.00 RRP: $40.95
Metal Guitar Effect Pedal Footswitch Toppers
$15.95 Save $15.00 RRP: $30.95