LA5se MOS-FET pure class A headphone amplifier amp is designed to drive K701 HD650 T1 and other headphones | Электроника

LA5se MOS-FET pure class A headphone amplifier amp is designed to drive K701 HD650 T1 and other headphones | Электроника

General parameters:

Output power (1KHZ sine wave equivalent undistorted power): 300mW/600 Euro, 1200mW/32 Euro.
Signal to noise ratio: >>102dB.
Output impedance: 47 ohms.
Voltage amplification gain: 19 times in high gain mode.
Maximum output voltage swing: greater than plus or minus 13V (equivalent to 26V).
Input interface: RCA Lotus dual channel socket.
Output interface: 6.35 headphone output.
Average power consumption: AC220V<15W.
Volume: 118*52*210mm
Net weight: 2.2 kg.

A new enhanced heat dissipation version is added, and a large radiator is added. The working temperature is reduced by about 10 degrees to reach the warm standard, which can be controlled to about 50 degrees in the summer air-conditioned house. The enhanced heat dissipation version can also be customized in silver and black panels.




A few additions:
Not all earphones require an amp, such as Senhai’s big bun, IE80, AKG’s Q460, etc., are earphones designed for direct push. You might as well buy a good player. This type of earphone, even if you put on the amp, Not necessarily a big improvement; LA5 MOS-FET is designed for high-end headphones, such as HD600, HD650, HD800, DT880, T1, K601, K701, etc. We have reference tuning for most headphones.
All components of this amp are designed specifically. You should not consider polishing the machine or replacing the op amp. It is especially important because the op amp of the LA5s works at a voltage of more than 20V. Most op amps will burn directly. More serious will damage the machine.
This amp has high gain and high power, so it is not suitable for small in-ear plugs. If you match this type of headphones, you can consider our solo amp. Its output impedance is relatively high, and it is more appropriate to push a small plug.
Regarding the sound quality of the LA5se, I can only describe it as extremely excellent. In my hand, the contrasting tuning of the Lyman and SOLO super linear are both defeated. Her voice is strong and gentle, the sound field is wide, the image is clear, the middle is calm, and the resolution transient is very good. The DT880 and T1 from K701, HD650 HD800 to 600 ohms with tuning have excellent performance!