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
OpenMV 25mm Ultra Long Focal Lens M12 Ultra-long-range Machine Vision for OpenMV 342 M7 M4 Special
$27.26Smart ModuleAdd to cartTechnical ParametersFocal Length:25mmAperture:F2.0Format:1/3inchMount:M12*0.5FOV:H = 9.1°, V = 6.8°IR Cut Filter:NoneWeight:5gLength:14mmWidth:14mmHeight:20mmFeatureThis lens gives your OpenMV Cam the ability to see longer distances (e.g. zoom in). The standard lens that ships with your OpenMV Cam has a 115° field-of-view (FOV) which allows your OpenMV Cam to see more things, but, with less detail. This lens has a …
5pcs 6V 1W 60*110mm Polycrystalline Mini Solar Panel Epoxy Board for DIY Learning
$27.09Smart Robot & Solar PanelAdd to cartSpecifications– Model:60*110mm– Type:Epoxy Solar Panel– Maximum power:1W– Working current:0-160MA– Working voltage:6V– Open circuit voltage:7.2V– Short circuit current:0.2A– Number of batteries:12pcs– Dimensions:110*60mm– Polycrystalline:Yes– Reference weight:about 0.020KGPackage included5 x Solar Panel
5Pcs BESTEP 1 Channel 24V Relay Module 30A with Optocoupler Isolation Support High And Low Level Trigger
$27.66Relay ModuleAdd to cartDescriptionThe module adopts high quality 30A relay, and the maximum load is normally open interface:AC 250V/30A, DC 30V/30A;The chip optocoupler isolation, strong driving ability, stable performance, trigger current 5mA;Module working voltage:24VCan be set up by high jumper or low level trigger.Fault-tolerant design, the relay will not operate even if the control line is disconnected.Power indicator …
50ml Horticulture Natural Concentrated Liquid Fertilizer for Plants Flowers Grasses Succulent
$9.83Lab ChemicalsAdd to cartSpecificationName;Concentrated Liquid FertilizerUsage:Suitable For Plants Flowers Grasses Succulent and so on.Nutrient Content:NitrogenPhosphorus:Potassium Oxide:Magnesium Oxide:Sulphur (g/l):30:15:17.5:1.3:1.7Featurea Improves seed germination and increases root development.b Increases bloom set and size of flowers and fruit.c Relieves stress in plants caused by extreme weather conditions.d Increase overall plant healthe Increases plant vigor and growthf Rebuilds soilg Improves drought toleranceh Improves …
Reviews
There are no reviews yet.