DC 12V-24V Class D Digital Audio Amplifier Board Dual Channel 15W*2 Power Amp

Description

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Description
Tips:
We can provide wholesale if you need large quantity, please contact us. Thanks.
Feature
The larger power voltage range is 8V-25V
good distortion and anti pop function
Non-Filter function
Speaker protection
Good short circuit protection and temperature protection with automatic recovery function
The four stage gain is adjustable, and the gain is 20dB
Especially suitable for computer use
High fidelity: Bass deep, high sounding
High efficiency: no heat sink. Use PCB to heat copper
Parameter
Input voltage: DC 8V-25V, 25V is the highest DC voltage
Input current: 2.5A, minimum required 12V, 2A power supply
Maximum output power: 15W+15W
Gain (magnification): 20dB (default)
Board size: 76*40*25.4mm
Speakers recommend the use of 4-8Ohms, 15W or 15W speakers
The input uses the standard 3.5MM dual channel headphone jack input,
Power input terminals: use 301 blue terminal terminals, marked with DC + -
Speaker output: no soldering blue terminal. Marked with SPK, L+, L-, SPK, L+, L-
20dB actually use with phone, the volume may smal,
Modify the amplification dB multiples, amplification is big, of course, low noise will increase accordingly
Board support: 20dB, 26dB, 32dB, 36dB, modify the dB method:
R4, R8 are all in 20dB, minimum volume,
R4 empty, R8 in 26dB
R4 in, R8 empty, at 32dB
R4, R8 are all empty, 36dB, the maximum volume
Output power: maximum 15W+15W (speaker impedance, power voltage, power supply, input sound volume effect)
4 Ohms Speaker, 12V voltage maximum power 18W,
4 Ohms speakers recommend the use of 12V voltage
8 Ohms speaker 12V voltage maximum power 9W,
8 Ohms speakers recommend the use of 16V voltage
Maximum power calculation formula, voltage divided by horn impedance, multiplied by voltage divided by 2, with 12V voltage, 4 Ohms speaker as an example, 12V/4, Ohms *12V/2=18W
• power output of 15W/ channel (16V voltage, 8 Ohms load)
• power output of 10W/ channel (13V voltage, 8 Ohms load)
Payment
We only accept payment via Paypal.
The buyer is responsible for any applicable import duties and local taxes.
Usually there's no any charges for small parcel. But please verify with your customs before making your purchase.
Delivery details
The items will be shipped within 1~2 working days after your payment is received and cleared.(excluding Saturday, Sunday & Holiday)
All items will be shipped to your Paypal address, so please make sure to provide us with the correct, precise, detailed shipping address.
The Delivered time to USA buyer is about 7~20 days, other country about
15~35
days delivered.
Notes: pls contact us if you need need trackable or express shipping service.
Terms of sales
All the items will be tested before shipping. Buy them with the confidence!
We maintain the excellent service standards
and strive for 100% customer satisfaction and
Positive feedback.
If you have any problem, please do feel free to contact us before leave Neutral
or Negative
feedback, so that we can satisfactorily address your concerns.
Return
We afford all cost if it's our fault. Exchange or refund.
Contact us
We strive to provide you with the best service, reply your question within 24 hours.
Business time:
9:30~21:30 (GMT+8)
exclude the weekend and holidays.
Contact us