Subwoofer Preamp Board
2, selected NE5532, welded IC holder can always replace the amplifier, experience different effects to enhance playability.
3, design of the LED Real-time monitoring the power supply situation.
4, PCB board design simple and beautiful, reasonable wiring, making the board has a very high signal to noise ratio, strong anti-interference ability. when no signal input close to the speaker almost hear the noise.
Main parameters:
Power supply voltage: DC12V-24V DC single power supply
Frequency range: 22Hz-300Hz
Audio input: mono or two-channel
Audio output: monaural
PCB Size: 78x32mm, thickness: 1.6mm
PCB Materials: FR-4 ultra-hard glass plate
Finished plate net weight: 30g
Plate mounting holes center to center spacing: 70x24mm, hole diameter: 3.2mm
Potentiometer shaft center to center spacing: 32.5mm
Package included:1 x Low-pass Filter NE5532 (with 2 rotary potentiometer cap)
Performance parameters:
(A) innovative use of a single power supply and power amplifier board can share power, very convenient, the op amp using NE5532, welded op amp IC holder, easy to replace the op amp to enhance playability, and all are Philips CBB capacitance capacitors, potentiometers uses high-quality sealed units produced potentiometer.
(B) with a full-range signal to adjust the volume potentiometer, very convenient to 2.1 amplifier board preamp.
(C) The LED monitor real-time power status.
(D) Dual-panel design, and strive to simple signal transmission, signal to noise ratio is very high.
(E) Input voltage: DC10-24V.
(F) can be a single / dual-channel input and mono output.
(G) PCB ultra-hardness FR-4 fiberglass board, board size: 82x30mm, excluding protruding parts, thickness: 1.6mm.
(H) frequency adjustment range 22Hz-300Hz, this frequency range is not the human voice, so-called low-pass only low-frequency output, to be added after stage amplifier power amplifier board can be used. The intensity of low-frequency performance with power amplifier board and speakers match, please choose a different amplifier board and subwoofer (passive subwoofer) according to different occasions.
Package Included:
1x Low-pass Filter NE5532 Hifi Subwoofer 2.1CH Pre-Amplifier Preamp Board
4x Cables
High quality potentiometer contacts well, stable for audio output.
Adjustment Types: 4 channels(treble+alto+bass+volume)
12-24V AC dual power supply, wide input voltage.
For the input part, uses dual RCA plug, audio contacts well and long life span.
Suitable for high-quality and professional sound equipment, telephone channel amplifier.
Specifications:
Working Voltage: 12-24V AC Dual Power(12V-0-12V 24V-0-24V)
Power Consumption: 5W
Front Chip: NE5532
Input Interface: RCA
Output Interface: 2.54-3P
Number of Channel: Dual-channel Audio
PCB Board Size: 10 * 60 * 23mm / 3.94 * 2.36 * 0.9in
Weight: 63g / 2.23oz
Package Size: 12.5 * 10 * 2.5cm / 4.92 * 3.94 * 0.98in
Package Weight: 75g / 2.65oz
Package List:
1 * NE5532 Stereo Preamp
1 * Audio Cable
1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.
3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner.
4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication with us. Ple
1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.
3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner.
4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication
When you satisfied with our product and services please leave us positive feedback.
If a problem occurs, contact us immediately with any email request. Just contact us using the " Ask the seller a question" link on eBay.We will maill bakc within 24hours