3pcs Single Power Supply DC10-24V 22Hz-300Hz Subwoofer Preamp Board Low Pass Filter Module
$20.74
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Special Reminder
This board is a heavy bass preamp board. It will not sound when directly connected to the horn. It must be connected to a pure final stage power amplifier board to make an active subwoofer. The power of the pure final stage power amplifier board is selected according to the shock level of individual needs. The higher the power of the pure final stage amplifier, the more shocking the bass effect will be. The so-called low-pass filter board filters out the high-pitched parts above the human voice, and retains the low-frequency part to zoom in to improve the bass playback strength, and does not hear human voices and high-frequency instrument sounds during playback.
Features
1. All components are selected as new first-class products. The frequency adjustment capacitors are made of original CBB capacitors. The adjustable potentiometers are made of fully sealed type. The input and output terminals are made of pure copper terminals. The wiring is very convenient.
2. The op amp uses the Texas NE5532, and the IC holder can be soldered at any time to feel the effect of different op amps and enhance the playability.
3. Designed with LED indicators to monitor power status in real time.
4. The PCB design of this board is simple and beautiful, and the wiring is reasonable, which makes the board have a very high signal-to-noise ratio and strong anti-interference ability. There is almost no noise near the horn when there is no signal input.
The main parameters
Power supply voltage:DC10-24V single power supply
Frequency range:22Hz-300Hz
Audio input:mono or dual channel
Audio output:mono
PCB specification:78x32mm, thickness:1.6mm
PCB material:super hardness FR-4 fiberglass board
Finished board net weight:30g
Plate fixing hole center spacing:70x24mm, hole diameter:3.2mm
Potentiometer shaft center distance:32.5mm
Package includes
3 x Preamp Board
Weight | 0.09 kg |
---|
Customers Also Viewed
DC 2-12V to 12V 9V 9W USB Boost Power Supply Module Step Up Module DC Converter
$4.36Boost & Buck ModuleAdd to cartSpecificationsStarting voltage:2VInput voltage:2V-12V DCOutput voltage:12V DC (9V DC)Input current:2AOutput voltage:default 12V, 9V can be setOutput power:≤8w (in the case of input 5V, it is easy to overheat)No-load currentWorking temperature:-40 to -80 ° CBoard size:25*14*5mm (length * width * height does not include USB)The General Test Data (just for reference)Input DC2V boost to 12V output current …
DC 2-12V to 12V 9V 9W USB Boost Power Supply Module Step Up Module DC ConverterRead More
5Pcs DC24V Coil Power Relay LY2NJ JQX-13F DPDT 8 Pin PTF08A with Socket Base
$26.55Electronic Accessories & SuppliesAdd to cartSpecificationsModel:LY2NJ (8 pins)Coil voltage:DC24VCoil Power:DC (W):≤0.9AC (VA):≤1.2Contact Structure:8 pins 2 normally open 2 normally closedContact capacity:10A 250VACPull-in voltage:≤80% (V)Release voltage:DC:≥10% (V), AC:≥30%Contact resistance:≤50 (mΩ)Insulation resistance:≤100 (mΩ)Dimensions:27.5 * 21 * 35.3mmTerminals form:SocketAction time:20ms or lessReset Time:20ms or lessOperating frequencyMechanical 18,000 cycles / hourElectrical 18,000 times / hourPackage included5 x DC24V Coil Power Relay with socket base
40*160 0.5mm Blue Aluminum Alloy Water Cooling Block Radiator Liquid Cooler Heat Sink Equipment
$24.29Other Module BoardAdd to cartFeatures1. New high quality, Connector outer diameter 9.5mm, connector inner diameter 6-8mm.2. Inner flow channel extrusion.3. Welding from components to a whole one.4. Suitable for computer CPU water, industrial inverter drive, cooling, industrial switchboard cooling.5. Rate of less than 5X10-6 mbar.l/s parts.6. Internal fin thickness 0.5MM.SpecificationMaterial:luminum alloyColor:blueSize:pprox. 40x160x12mmProcessing:Vacuum auminum BrazingPackage includes1 x Water Cooling
20Pcs DS18B20 Temperature Sensor 18B20 TO-92 Encapsulation
$44.75Electronic Accessories & SuppliesAdd to cart20Pcs DS18B20 Temperature Sensor 18B20 TO-92 EncapsulationSpecificationTemperature measurement range:-55°C ~ +125°CAccuracy:± 0.5°CEncapsulation:TO-92Quantity:20pcsPackage included20 x DS18B20
20pcs WXD3-13-2W Precision Potentiometer 22K 22K Ohm Wirewound Multi-Turn Potentiometer
$49.11Module ComponentsAdd to cartSpecificationsResistance range:22K┯Resistance tolerance:÷ 5%Rotation angle:3600 ÷ 20 Number of laps:10 lapsRated voltage:160VStarting torque:3.5 ~ 100mN.mRated power:2W (85 →) 0W (125 →)Linearity accuracy:÷ 0.3%Mechanical durability:10,000 weeksPackage included20 x Potentiometer
Reviews
There are no reviews yet.