Introduction:
NAP250 MOD version of the MINI circuit board design, reducing the
length of PCB wiring. While also reducing the impact of PCB wiring
resistance. And modified version.
In addition NAP250 MOD
version of the original modified some BUG. So that the temperature
compensation tube can be installed with the high-power tube in the same
heat sink. So that the NAP250 MOD can work in CLASS AB. To avoid the
ross-distortion.
Working parameters:
Input voltage: DC +/-15V --- DC +/-40V
Output power: RMS 80W 8R (DC +/- 40V)
Quiescent current recommended value: the voltage across the cement resistor = 1.5 mV-3mV, the current is about 10---20 mA.
THD + N: 0.001% --- 0.03% (20Hz-20KHz 5W ---- 30W 8Ohm Audio Precision 2 TEST)
NOTE: This is a finished board for welding and testing OK.
Frequency response: 20Hz -0.04Db, 20KHz -0.34 Db
15Hz -0.05Db, 30K Hz -52 Db.
Measurement data: Audio Precision 2 TEST
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Shipping time:
Default send by airmail,about 15-22 business days can arrive most of europe countries, Russia, Brazil,Africa.Ukraine and some other remote countries will need some more days.
If you need it urgently,also can contact us for adding money using a faster courier(EMS,DHL,UPS or courier you designated)
Payment:
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All items will be shipped within 1-3 business days (from china)upon receipt of payment.
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Return & Exchange:
>> Some items return is accepted within 7 days after the buyer's receiving the item.(please see the detail describe)[In case of DOA (Dead on Arrival), please report within 3 days]
>> Returned item has to be new, unworn and in its original condition.>> After getting the returned item, we will refund the customer at the item's price ( excluding the shipping costs to and from )