Tech highlights
Compared with the commonly reproduction of NAC 152, we improved:
Using Two-stage buck regulator filter,Two low-pass filter prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery).
The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise.
voltage soft-start feature is included which will take about 3 second to reach the designed voltage.
all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign.
Fully Discrete AMP.
Use High Hfe Transistor.
Higher power supply voltage (45VDC), which can provide a more powerful dynamic experience than the original 24VDC power supply.
Fully optimized parameter design expresses a higher level of musical performance.
Power Requirements ： AC40～50V,I≥0.5A
SIZE: 204x153x48(H)mm
Gain: 6.5X
Input Resistance: 47K
THD: 0.01%(20Hz-20KHz)
Schematic & TopOverlay Please contact us to obtain after you pay.
We verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. and use this board for listening test.
Pics
Payment Method: PayPal preferred
Shippment:
1.We
provide free shipping to international via China Post Airmail . We can also ship by TNT/EMS/DHL/FedEx for alternative shipping
method for corresponding fees. Please let us know before payment if you
need split shipment.
2.International shipping requires complicated
shipping procedures, If you have not received your shipment within 30 days
from payment, please contact us.
Returns & Replacements & Repair:
We
accept returns & replacements within 30 days from the day the
customer receive the products, please make first contact within 30 days
from receiving the order. Products should be returned in original
condition. As a benefit to our customers, we also provide repair within 3
months from the day when this item is shipped out, after repair is
done, we will send you the item, but the customer should pay both
shipping ways.
Feedback:
1)Your
Feedback is really important to us, please take a few seconds to leave
great feedback if you are satisfied with our product or service, thank
you so much !!
2)We always offer the lowest price for best goods and service to you.
3)
Please contact us before leaving neutral(3 stars) or negative(1-2
stars) feedback.We will try our best to solve the problem and leave you a
happy shopping mood here. Thank you!
Payment Method: PayPal preferred
Shippment:
1.We
provide free shipping to international via China Post Airmail . We can also ship by TNT/EMS/DHL/FedEx for alternative shipping
method for corresponding fees. Please let us know before payment if you
need split shipment.
2.International shipping requires complicated
shipping procedures, If you have not received your shipment within 30 days
from payment, please contact us.
Returns & Replacements & Repair:
We
accept returns & replacements within 30 days from the day the
customer receive the products, please make first contact within 30 days
from receiving the order. Products should be returned in original
condition. As a benefit to our customers, we also provide repair within 3
months from the day when this item is shipped out, after repair is
done, we will send you the item, but the customer should pay both
shipping ways.
Feedback:
1)Your
Feedback is really important to us, please take a few seconds to leave
great feedback if you are satisfied with our product or service, thank
you so much !!
2)We always offer the lowest price for best goods and service to you.
3)
Please contact us before leaving neutral(3 stars) or negative(1-2
stars) feedback.We will try our best to solve the problem and leave you a
happy shopping mood here. Thank you!
Shippment:
1.We provide free shipping to international via China Post Airmail . We can also ship by TNT/EMS/DHL/FedEx for alternative shipping method for corresponding fees. Please let us know before payment if you need split shipment.
2.International shipping requires complicated shipping procedures, If you have not received your shipment within 30 days from payment, please contact us.
Returns & Replacements & Repair:
We accept returns & replacements within 30 days from the day the customer receive the products, please make first contact within 30 days from receiving the order. Products should be returned in original condition. As a benefit to our customers, we also provide repair within 3 months from the day when this item is shipped out, after repair is done, we will send you the item, but the customer should pay both shipping ways.
Feedback:
1)Your Feedback is really important to us, please take a few seconds to leave great feedback if you are satisfied with our product or service, thank you so much !!
2)We always offer the lowest price for best goods and service to you.
3) Please contact us before leaving neutral(3 stars) or negative(1-2 stars) feedback.We will try our best to solve the problem and leave you a happy shopping mood here. Thank you!
