PTP without cover: is a Luxury version , components are soldered by hand (point to point), easily to upgrade, output transformers size is 76x40, but without tube cover

PTP with cover: is a Luxury version , components are soldered by hand (point to point), easily to upgrade, output transformers size is 76x40,  with tube cover

PCB without cover: use a PCB architecture for inside components, output transformers size is 66x36,  but without tube cover

PCB with cover:  use a PCB architecture for inside components, output transformers size is 66x36,  with tube cover

Basic technical parameters:

Tubes

* Voltage tubes : 6N2 × 2.

* Power tubes : SHUGUANG EL34-B x 2.

* Rectifier tube: 5Z4P ×1

* Output Power: 12W * 2 (ultra-linear connection)

* Frequency response: 20Hz - 28KHz

* Output Impedance: 4ohms - 8ohms

* Total Harmonic Distortion: ≤ 1% (1kHz)

* Input Sensitivity: 750MV

* Input impedance: 100KΩ (two input signals

* Dimensions (W × D × H): 310 × 268 × 165mm

* SNR: 88dB

* input voltage: 220-240v 50/60hz

Features:

* Use imported HIFI capacitor filter capacitor (Netherlands's Philip, Japan's ELNA, Japan's Ruby, etc.).

* Coupling capacitances adopt Netherlands, Philip HIFI-class audio-specific capacitors; sound transparent is elegant, passionate.

* Corners aluminum column: high-grade aluminum CNC machining, diamond knife speed car system.

* ALPS’s volume potentiometer, Philip’s audio capacitor for Coupling and Power filter, Panasonics audio capacitor for Cathode compensation, Taiwan’s Military-grade  5 ring resistanc

* adopt Japanese SUN classic lines improvement, every channel uses 2pes three common cathode tube parallel amplification with high output voltage

* Has characteristics of driving current, full sound fast, transparent treble and smooth

* Adopt high-voltage full-wave rectifier tube up to 315V +315 V, import core power inductors,  r-type power supply filtering, import Philip / ruby supply filtering

* Pure hand-scaffolding with Star Architecture(BOYUU’s special architecture)

Power tranformer:

* Use 0.35, 96-50 large power core manufacturing, design power of 200W to ensure adequate power and low temperature rise.

* Use high-quality oxygen-free copper enameled wire enameled layered tightly wound, with extremely low no-load current characteristic, quiet operation, no vibration, no hum.

Output Transformers:

* Use potting output transformer with 0.35 thick high-flux silicon steel to ensure stability and reliability, especially in damp places, have a more reliable

performance

* Output transformer, is high-purity copper wire enameled wire package, and layered segmented string and connection method, three clips two

Wound

* Output transformer with high-grade stretch cover, surface temperature paint handling, and bright fringes processes.