Description
ET400A Class A Class D 350Wx2 Hifi Digital Power Amplifier Power Amp w/ Large Shell Pluggable OP Amp
Features:
- Latest Class D technology, high-precision THD+N and IMD indicators for better hearing
- Each power amplifier, starting from its board, has been tested by devices for AP before delivery, and the performance is 100% guaranteed
- Using open-loop LLC architecture power supply, full-power ZVS work and rectifier ZCS work, so that the noise is lower
- At full power, the efficiency of the whole machine reaches 93-94%. The static power consumption of the whole machine is 16W (measured at 220V)
- OPA1612 high-precision op amp
- Original film capacitors for WIMA have low losses and small size
- Taiwan-made gold-plated RCA and SWISS imported XLR input socket (for NEUTRIK), carbon fiber gold-plated and terminals
- The power supply capacitors use original LS (primary) and RX (secondary) high frequency capacitors for Nover
- The power amplifier capacitor adopts Japan's ZLH series high-frequency long-life capacitor for Rubycon
- Thickened all-aluminum chassis
- Waterproof stainless steel power switch with light
Specifications:
- Standard chassis: 430 x 220 x 60mm/16.9 x 8.7 x 2.4"
- Power 1%: 200W*2 at 8 ohms; 350W*2 at 4 ohms
- Distortion: Less than 0.00025% at 1K 100W
- SN: over 125dB, measured 127dB
- Damping coefficient: more than 800 in the full frequency band, 1400 measured at 1K
- Frequency response: -0.02dB at 20-20K
Package Included:
- 1 x Power Amplifier
About the buffer plate:
Currently, the buffer board is with a gain of 14dB. Unplugging the op amp, it is equivalent to a straight-through power amplifier. Without the buffer board, that is, the gain will be smaller than 14dB. While unplugging the op amp, there are 4 short-circuit pins inside, and it is necessary to jump to the other two pins of the three pin headers. When plugging in the op amp, it is necessary to jump back, otherwise it will affect the distortion of the whole machine.
About the cross-wiring of left speaker wire:
Since July 22, all products have adopted left channel cross-wiring (but the phase is positive, because there is reverse phase in the circuit from the power amplifier, so the reverse connection is used), which is also the result of optimized design. But for users with bridge switches, the two channels are also connected in the same way.
Features:
- Latest Class D technology, high-precision THD+N and IMD indicators for better hearing
- Each power amplifier, starting from its board, has been tested by devices for AP before delivery, and the performance is 100% guaranteed
- Using open-loop LLC architecture power supply, full-power ZVS work and rectifier ZCS work, so that the noise is lower
- At full power, the efficiency of the whole machine reaches 93-94%. The static power consumption of the whole machine is 16W (measured at 220V)
- OPA1612 high-precision op amp
- Original film capacitors for WIMA have low losses and small size
- Taiwan-made gold-plated RCA and SWISS imported XLR input socket (for NEUTRIK), carbon fiber gold-plated and terminals
- The power supply capacitors use original LS (primary) and RX (secondary) high frequency capacitors for Nover
- The power amplifier capacitor adopts Japan's ZLH series high-frequency long-life capacitor for Rubycon
- Thickened all-aluminum chassis
- Waterproof stainless steel power switch with light
Specifications:
- Standard chassis: 430 x 220 x 60mm/16.9 x 8.7 x 2.4"
- Power 1%: 200W*2 at 8 ohms; 350W*2 at 4 ohms
- Distortion: Less than 0.00025% at 1K 100W
- SN: over 125dB, measured 127dB
- Damping coefficient: more than 800 in the full frequency band, 1400 measured at 1K
- Frequency response: -0.02dB at 20-20K
Package Included:
- 1 x Power Amplifier
About the buffer plate:
Currently, the buffer board is with a gain of 14dB. Unplugging the op amp, it is equivalent to a straight-through power amplifier. Without the buffer board, that is, the gain will be smaller than 14dB. While unplugging the op amp, there are 4 short-circuit pins inside, and it is necessary to jump to the other two pins of the three pin headers. When plugging in the op amp, it is necessary to jump back, otherwise it will affect the distortion of the whole machine.
About the cross-wiring of left speaker wire:
Since July 22, all products have adopted left channel cross-wiring (but the phase is positive, because there is reverse phase in the circuit from the power amplifier, so the reverse connection is used), which is also the result of optimized design. But for users with bridge switches, the two channels are also connected in the same way.
Payment Terms
1. We accept PayPal,Payoneer,Visa Card,Google pay,Credit card etc.
2. We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay.
2. We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay.
Shipping Terms
1. We will process the order within the handling time ,if you have any questions, please contact us via eBay message or email.
2. For remote regions of DHL/FedEx..., extra shipping costs might be charged. Usually it costs about 30USD-50USD. We will contact you if shipping company informed us your address belongs to remote area. Thanks for your understanding.
2. For remote regions of DHL/FedEx..., extra shipping costs might be charged. Usually it costs about 30USD-50USD. We will contact you if shipping company informed us your address belongs to remote area. Thanks for your understanding.
Return Terms
If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days. We will guide you the returning process for replacement or refund.
Custom Duties & Taxes
1. It is buyer's responsibility to cover the import duties, taxes.We do not charge any taxes and fees, and the possible taxes and fees will be collected by the platform or by third parties such as customs and carriers.
2. Please check with your country's customs office and inform us what/how much should declare before shipping.
2. Please check with your country's customs office and inform us what/how much should declare before shipping.
Feedback
1. Please kindly leave us a positive feedback and 5 star DSR if you satisfied with our product and service. Please feel free to contact us firstly if you have any problem with your order, we are responsible and credible seller and will solve the issue it for you asap.
2. If you are dissatisfied for any reason, please don't be quick to leave us neutral or negative feedback. We work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers.
2. If you are dissatisfied for any reason, please don't be quick to leave us neutral or negative feedback. We work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers.
On Jun 8, 2023 at 23:39:09 PDT, seller added the following information: