Features

L7 2-channe MOSFET audio amplifier board kit.

Kit only, you need to weld all components by yourself.


Parameters:
Output power of 150W 8R DC + - 56V
300W 4R DC + - 56V
350W 2R DC +-45V
Frequency range 4HZ-3DB, 350K HZ-3DB
THD <0.01% 100W 1K HZ
SR = 38V/US
SNR> 99DB

it requires AC 50V(or below)x2, or DC ±70V(or below), 100W(or above) transformer.

Complementary feedback input stage using CFP. Single-ended voltage amplification.
CLASS AB class work.
PCB size = 78 * 63 MM
Output stage features Germany VISHAY IRFP240, IRFP9240 FET output
Use advanced MKP coupling capacitors.
Use floating MOSFET driver, designed by LJM.
PCB identification number on a detailed, user-friendly installation. Only need to install the corresponding parts on related positions..
Please note that the insulation must be installed under transistor IRF610, must use insulating films, insulating particles.


Package include:

amplifier boards kit x 1(include 2 boards and all the components on the picture.)

kit only,  you need solder it by yourself. 

 NO INSTRUCTION COME WITH THE ITEM.
(components values have been marked on the PCB, NO schematic will be attached)

Manufacturer may use different (from the picture) but same grade components due to different bulk. Please consider if you can accept it before buy.


warm note:

Please kindly keep in mind that we are a seller in China, and you are doing international business, so the delivery may take a bit longer time than your deals in domestic..
Please kindly leave  5 ★ DSR (detailed seller rating) and POSITIVE feed back to us if you are happy with the transaction, both of them are ultimatly important to us. if you are not happy, please DO communicate with us and let's have the opportunity to make you satisfied before you leave any non-five stars DSR, poor feedback and open any dispute/case.
 

You will be welcomed to communicate with us by eBay message system.  

Best regards.

 

Shipment
  •    Items will be shipped within 1 business day on payment received.
    •  
  •    Items are shipped from Hong Kong  using Airmail, reach most of the        countries within 10 to 20 business days.
    •  
  •    Delivery time depends on destination and other factors, it may takes up    to 20 business days.                                                  
Country

Delivery Time

Working Days (not                                                           including holiday)
5-7
8-11
12-14
15-19
20-22
>29
Working Days + Saturday                                                           + Sunday
5-9
10-15
16-20
21-25
26-30
>38
United States
Rate (item arrived)
5 .1%
50.1%
29.6%
10.5%
4.7%
Refund
United Kingdom
Rate (item arrived)
9.9%
63.2%
19.1%
3.4%
4.4%
Refund
Australia
Rate (item arrived)
21.4%
50.0%
14.3%
7.2%
7.1%
Refund
France
Rate (item arrived)
10.5%
28.6%
43.8%
10.1%
7.0%
Refund
Germany
Rate (item arrived)
11.1%
22.2%
30.3%
20.9%
15.5%
Refund
Canada Rate (item arrived) 0.0% 47.1% 31.4% 17.6% 3.9%

Refund

Spain
Rate (item arrived)
3.5%
25.0%
47.9%
12.9%
10.7%
Refund

  • Buyers are responsible for any customs duties if necessary.
    •    
  • We ship to PayPal registered address only. Please provide your correct detailed address and full name in PayPal.A phone number is recommended for more accurate delivery.
    •    
  • We will put legal effort to minimize any GST or V.A.T. or other Import Taxes. If applicable,however,any tax/duty would be excluded from the price.
    •    
  • Most items are shipped from China via Hong Kong by air mail (without tracking number) or registered post with tracking number, Shipment takes 6-45business days to arrive, tt ultimately depends on the courier service company.                            
  • we don't ship to Italy by economy shipping.if you want the item need choose express shipping.
    •    
  • We promise each item would be shipped, but sometimes less than 0.5% packages might be lost on the way, you could choose to let us resend a same item or ask for refund. 

Payment & Return Policy
  • We accept payment by Paypal Only.

DataCaciques