Introduction:
nTA2022 integrates a piece of DC buck circuit(the switch Buck), composed of an oscillator and a CMOS tube, combined with external power and high speed diode inductance components, DC-DC circuit, switch signal inductance will produce a 2KHZ high frequency, this signal will directly interfere with the internal PMW digital modulation circuit, audio signal by high power superposition the built-in CMOS push-pull output tube, resulting in high frequency noise In a number of high quality and high sensitivity of the performance of the speaker is very obvious,This board is designed to disable and block the DC-DC device in the chip., using an external precision 317 linear power supply instead of the circuit, eliminating the high frequency noise, whether it is a standby state or a state of amplification without noise Sounds more pure and sweet
nPre input capacitance and inter stage coupling capacitorCopper pin audioCapacitance,Main filter electrolysisCapacitor using3300UF/50V heijingang dailyThis import capacitorWith the ELNA, red, Panasonic etc.Capacitor, with fever.
nRectifier using 25ARectifier flatBridge, to ensure strongsourceSource constant power
Support
nUsing the new original gold foot TA2022, classic power amplifier IC
nThis board uses C1237 horn protection circuit (OMRON relay), to eliminate the impact of the switch machine sound, and with DC protection, care expensive horn
nLC filter circuit using red ring inductance with imported CBB film capacitor,
nSoft, beautiful, strong, strong, resistant to listen to,
Voltage: AC22V-0-AC22V
Output impedance: 4 ohm -8 Europe
Power: 90W+90W
Size: long 100* width 96* high 45 MM
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Aftermarket commitments:
1, Our commitment to the sale of goods 100% integrity assurance, if you have any question for the products, please contact us directly,
our basically 24-hour online customer service will patiently answer you
2, If you are not satisfied with our products, you can request a refund or exchange.
We will actively coordinate and process your request. If the product does not work, we will full refund.
But require the buyer to return the product by advanced freight, we will refund the freight you pay after getting and confirming the product status.
On the sign:
Please carry out inspection before you sign to check the number of parts shortages or discrepancies, etc.;
If so, please contact us at the contact details on the express orders.