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M9 current negative feedback

M9 current negative feedback after-stage power amplifier blank board, not soldered (Lelin line)

Regular price $55.92 Sale price $89.96 Unit price per
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product description

The parts on the picture are only for display, The actual shipment is an empty board. You need to purchase additional parts yourself to install. All you buy is an empty printed circuit board, you must pay attention!

M9 current negative feedback post-amplifier, finished empty board, JEFF ROWLAND MODEL9 line from Lelin, USA. The line overcomes the instability factor of current feedback power amplifier on the market, and the S/N conversion rate is greater than or equal to 300V/S, and the bandwidth is up. 5M, the tone is soft, thick, and the control is good, especially the high frequency analysis is good and slender. The line has perfect speaker protection, zero
The bit servo circuit, the buffer of the front-end input field effect transistor, is suitable for the impedance matching of the front and rear stages, and can be matched with any front-end. After the voltage is amplified, add a first-level buffer to implement high current and low internal resistance. In addition, the board is designed with 4 pairs of high power tubes per channel, field effect K1529/J200 or other transistors (example: A1943/C5200)

Parameters and matching
Motherboard size: 260MM X 65MM X 2MM



As different computer display the colors differently,and the color maybe is little difference from the actual items,but we can guarantee the style is same,but maybe some not same performance on different bodies as on the models.Hope you can understand it.thank you



Shipping Timeframe:

US, Australia, New Zealand: 2~3 weeks  France: 2~4 Weeks

UK, Germany, Canada: 3~5 weeks  Other European Countries: 3~5 Weeks

Asian Countries: 3~5 Weeks       Others: 3~8 Weeks·

 Items will be shipped in within 4 days after payment is received. 

Items are shipped from China using Post Air Mail Registered (HongKong Post, Sweden Post or Singapore Post).

The Parcel Status Can Be Tracked Via Post Official Website or 8-10 Days Later After Sending.The Real Delivery Date Is Subject to the Custom & Local Logistic Status.

In Case Express Service Required, Please Contact Us About the Detailed Freight.

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 If you are not satisfied with the item you received, Please contact us for parcel return & payment refund.The returned parcel shouldbe sentback in original package (or well protected)in14days after the receipt.

If item is founddefective in 1 months, We will send you a replacement free of chargeor arrange the refund after the receipt of the defective item. But you have to pay for the returned freight.

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