LaoChen 845 Röhrenverstärker HIFI Single-Ended Class A 300B 6SN7 Treiber Flaggschiff Lampenverstärker

LaoChen 845 Tube Amplifier HIFI Single-Ended Class A 300B 6SN7 Driver Flagship Lamp Amp 100% original factory and brand new

If your speakers and audio source are very good, you have a higher level of pursuit for the sound quality of the machine and the sound level of the tube.

You can upgrade the PSVANE tube 6SN7-SE*2, 300B-SEN*2, 845SEC*2.

Standard version option is With PSVANE HIFI Seire 2x 845,   2x 6SN7 and 2x PSVANE special made 300B-SE :

Luxury version: option is with all best specially PSVANE customized black plate, golden pins tube:  2x PSVANE 845-SEC Black glass, 2x PSVANE Eggplant shaped 300B-SEN,  2x PSVANE Bottle shaped 6SN7-SE

Parameters:

• Preamp tubes: 2 x  6SN7 or CV181-SE(depend on option)
• Driver tube:  2x 300-SE or 300-SEN (depend on option)
• Power tubes: 2 x 845 or 845-SEC (depend on option)
   
•  Output power : 25Wx2 (8 ohms),  

• Power transformer Power: 150W
• Frequency response: 18Hz-35KHz
• Output Impedance: 4 - 8 ohm
• Total Harmonic Distortion: ≤ 1% (1kHz)
• Input Impedance: 100K ohms
• Input Sensitivity: 500mV--2000mV
• SNR: 87db
• Size (W × D × H): 430(W)×340(D)×280(H)mm
• Net weight: 27 kg
• Package weight: 30Kg
• Input voltage for: AC 50-60hz /110-120v, 220v  230v-240V

Features: 

• Since 2 years preparation and testing , Laochen in the end release their latest flagship big power 845 tube amplifier (HIFI EXQUIS)
• Use one high voltage transformer and one lower voltage transformer, 2 x power transformers independently supply amp, in order to ensure amplifier's power at the same time reduce the interference, in the absence of output feedback, the noise is controled within 1-1.5 millivolt, making the sound of the amplifier more broadly natural. 
• Using custom 6SN7 preamplifier, (HIFI EXQUIS)
• PSVANE 300B-SE to drive PSVANE 845 high-power bile duct drive output transformer, 
• Between 300B and 845 is with stable efficient hi-fi coupling capacitors 
• Use of metal film resistors, ALPS potentiometer and hi-fi level capacitors, 
• signal amplification part use handmade scaffolding design to reduce the noise 
• The power supply part use thickened circuit board. (HIFI EXQUIS)
• use for each high voltage and low voltage two inductance for filtering,
• Use a delay of 30 seconds of the circuit, effectively protecting the life of the power tube. 
• Taiwan's high-quality dual-head dynamic VU meter, 
• Direct thermal triode 845 amp, both the performance of human voice and natural string and delicate, and also when dynamic time it's calm and magnificent, 
• Gold-plated connectors (HIFI EXQUIS)
• 3 inputs source with swither (HIFI EXQUIS)
• Free offer tubes protection grille (HIFI EXQUIS)
• All electronic component are high level quality
• Manufactuer Laochen is most famous Chinese brand, they have 3 brands: "Oldchen" , "LaoChen", "Aiqin" ,  its EL34 series is already sold more 20000 copies.