FREE SHIPPING SW5513 4MA or 6MA 55g analog metal gears sail winch servo boat servo RC MODEL RC BOAT SPARE PART

FREE SHIPPING SW5513 4MA or 6MA 55g analog metal gears sail winch servo boat servo RC MODEL RC BOAT SPARE PART
  • Продавец
  • Список ценUS $21.50piece
  • Продажная ценаUS $21.50piece
  • ДоставкаБесплатная доставка
  • Рейтинги3,2 (680)

Oписание продукта

Enhanced version KSA100 amplifier board (assembled and test well )

PCB size :270*70mm ,2.0 mm thickness copper PCB 
with UPC1237 Speaker protection circuit,with delay ,mid-point protective, current foldback circuit,High SNR
It can make as 50W pure class A or 150W class AB amplifier 
power supply :DC +-35v-+-70v(for power stage) AC12-15v (For protective circuit )
transformer power >300W
Packing include :power amplifier board X1 set (2 pcs as the photo showing )





s-l500 (4)

About  Douk  Audio Studio  :

Douk Audio Studio established in 2013, We are dedicated to offer the best audio-visual products at the lowest price to our customers. We have the professional design and producing team which Bringing great products and customer service, and thus help enriching our customers’ lives is our ultimate goal.

About Shipping :

1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO)

2. Import duties:Taxes are not included in the price or shipping charges.the Customs fee is buyer\'s responsibility. 

3.If the parcel not reach you within 30 days , please contact us. We will help you to solve the problem


1. You have 7 days to contact us and 30 days to return it from the Receipt date. If this item is in your possession more than 7 days, it is considered as used and WE WILL NOT ISSUE THE REFUND OR REPLACEMENT. There are NO EXCEPTIONS! Returning Shipping cost is  buyer\'s responsibility.

2. All returned items MUST BE in the original packaging and you MUST PROVIDE us the shipping tracking number

3.In case of returns, please contact us prior,we will help you to solve it ,if it cant be solved online we will accept your returning and refund you

About Guarantee:

1. 12 months Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.

2. Defective items MUST BE reported and returned within the warranty period (and in the original packaging, if possible)

About feedback:

1. If you are satisfied, please leave 5 stars positive feedbacks, It’s very honored for us to achieve generous authentic assessments and photographs,thx!!!!!

2. Any product or shipping issue, please contact us before opening the dispute or leaving any nertral/negative feedback, we\'ll try our best to solve problems until you satisfied.