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Assembeld 3 pairs ON JW0302/0281 Hifi Mono Power amplifier board 30-300W L5-28
Item ID：ZJ-0653
List Price：US$36.00
Price：US$32.00
Payment Terms
paypal
Shipping
ship to world wide
Availability
in stock
Description
Product Q & A
Review
This circuit is derived from the "Audio Power Amplifier Design Manual" edited by Dougls of the United Kingdom. Douglas stated in the book that the so-called "no defect" is not absolutely perfect, but refers to the correction of the known 8 distortions existing in the traditional amplifier circuit. Amplifiers made according to the prototype circuit measured a total harmonic distortion of 0.0005% at a 1 kHz 8 ohm load, a total harmonic distortion of 0.003% at a 101 kHz 8 ohm load, and a conversion rate of 35 V/us. The line was adopted by new music fax A1 Class A amplifiers, Lang Quan EVO50, Gentlemen and many other famous machines.
Note： This is a assembeld board , the default price is not include the heatsink.
PCB Size: 193*82mm
works voltage DC±30v---±60v (recommend +/-48V 100W at 8ohm load)
Output power: 30-120w/8ohm
The Power Transistor using 3 pairs New Original ON NJW0302G/NJW0281G.
Input stage: The most perfect closed-loop constant current source structure + current mirror technology. Make the differential pole work point absolutely balanced. Very rich musical details, very stable midpoint of static output (differential pair and current mirror triode require pairing)
Voltage level: The emitter follower is added to make the voltage level distortion low to negligible, which effectively reduces the phase shift between the input and output signals. This contribution to the low frequency power is very large. The amplifier driver IC produced by the famous NEC company is also such a structure.
Output stage: This power amplifier board uses 3 pairs of high-power tubes in parallel, with smaller output resistance, stronger drive capability.
package include: Assembeld 3 pairs ON JW0302/0281 Hifi Mono Power amplifier board X 1 ( not include heatsink)
One board is mono, for a stereo amp will need 2 of this board.
Assembled board
Items No：CL20-08-31
Price：US$198.00
Assembled board
Items No：ZJ-0711
Price：US$48.00
Assembled board
Items No：ZJ-0684
Price：US$40.00
Assembled board
Items No：ZJ-0683
Price：US$40.00
