Description

 

L.NAP140 Gold HiFi Stereo Power Amplifier 80Wx2 Output Low Distortion Headphone Amplifier Reference for NAIM Design

Features:
- Referring to the design for NAIM amplifier in the UK, the quasi complementary OCL circuit has high power and low distortion.
- The rated output power of the 4ohms speaker reaches 80W continuous power per channel.
- Four large capacity capacitors filter to ensure high dynamic, low ripple, and signal-to-noise ratio.
- Customized 200W high-power A-grade iron core encapsulated ring transformer to ensure good power supply for the entire circuit.
- Four high-power tubes for SANKEN with a dissipation power of 200W ensure sufficient power.
- Complete protection circuit, achieving zero impact on/off and midpoint detection.
- Two headphone outputs ensure high dynamic and low distortion while maintaining a signal-to-noise ratio comparable to professional headphone amplifiers.
- Two analog audio signal inputs, easily connected to different front ends by switching through the front panel switch.

Specification:
Power Amplifier:
- Rated output: 50W + 50W (8ohms, THD < 0.1); 80W + 80W (4ohms, THD < 1%)
- THD: 0.01% (8ohms, 1kHz, 10W)

Headphone Amplifier:
- Headphone impedance: 8 - 600ohms
- Distortion: < 0.01% at 1kHz, Vppm = 20V (30% power output)
- Output noise level: -91dB
- Output impedance: 3.3ohms (high power port); 68ohms (standard power port)
- Rated output power: 12W/32ohms; 2W/300ohms; 1W/600ohms

Others:
- Power consumption: < 20W for standby; < 200W for maximum power output
- Input sensitivity: 100mV/20K
- SNR: > 105dB
- Voltage gain: 35 times
- Size: 194 x 70 x 311mm
- Weight: about 5kg

 

Front Panel Function Introduction:
A: Voltage switch
B: Speaker headphone output switch. Press to output the front headphone port.
C: High-power headphone output, suitable for low-impedance and low-sensitivity large headphones, such as tablet PC headphones, K701 or high-impedance large headphones can also be connected, refer to personal preference.
D: Standard power headphone output, suitable for most moving coil moving iron and other headphones, it is not recommended to use small earplugs to connect, the power is too large, pay attention to controlling the volume output.
E: Volume output control.
F: Input selection switch, select the rear two input audio sources.

Rear Panel Function Introduction:
A: Two sets of analog RCA inputs, IN1 and IN2 can be connected to different front ends, and the input source can be selected through the switch on the far right of the front panel.
B: Speaker output terminal, used to connect speakers.
C: AC power input socket.

Package Included:
- 1 x Host