Description: Introduction: Based on the classic Marantz MA-9S2 power amplifier circuit. Adopt the same main circuit as the original machine. Using the HDAM-SA module topology, the input is a very nice Diamond Buffer circuit, also called "diamond (diamond) expansion circuit", and the I/V mirror circuit is used between the voltage levels, and the matching characteristics before and after are excellent. The feedback form is current negative feedback, which has excellent load control ability. In addition, a midpoint servo circuit and a more complete speaker protection circuit are added. The intermediate voltage is very stable and is basically a few millivolts. Product parameters: Power supply range: main voltage dual DC 35~55V (dual DC 45V is recommended); speaker protection power supply single AC 12~17V (single AC 12V is recommended). PCB size: 167*83MM Note: R1 on the left panel and R1 on the right panel are both 22K, not 22R Packaging includes: Amplifier Board PCB X1
Price: 11.99 USD
Location: FOSHAN
End Time: 2025-01-29T14:03:56.000Z
Shipping Cost: 0 USD
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Item Specifics
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Brand: ZEROZONE
Type: Power Amplifier
Number of Channels: 2
Product Code: PCB202359
Model: MA-9S2
Country/Region of Manufacture: China
