Cayin U-99I PLUS KT170*4 Vacuum Tube Integrated Amplifier HIFI Push-Pull Amplifier

Product Parameters:

Rated output power:

78W+78W (RMS transistor working state)

135W+135W (RMS super linear operating state)

Overall frequency response:

5HZ~55KHZ (-3DB, RCA)

5HZ~35KHZ (-3DB, XLR)

Total harmonic distortion: 0.2% (1W/1KHZ; rated output power less than 5%)

Signal to noise ratio: 97DB (A-weighted)

Input sensitivity:

330MV (when combined input)

1000MV (during pure post stage input)

Input impedance: 100K Ω

Output impedance: 4 Ω, 8 Ω

Input terminal: XLR; LINE1; LINE2; LINE 3; PRE-IN

Output terminal: SUB OUT (with low-pass filtering)

Using vacuum tubes: MULLARD CV4004/12AX7 * 2, TUNG SOL 6SN7GTB * 2, TUNG SOL KT170 * 4, RCA 25AX4GT * 1

Size: 430MM * 448MM * 238MM

Net weight: 38.7KG

Power consumption of the entire machine: 290W (minimum) 680W (maximum)

Working conditions: Temperature: 0 ° C~40 ° C Humidity: 20%~80%

Temperature: -20 ° C~70 ° C Humidity: 20%~90%

U-99i PLUS Upgraded version:

Through measures such as circuit optimization and component upgrades, the sound quality of the product is comprehensively improved

Be brave in trying new things and pioneering

Four TUNG-SOL KT170 vacuum tubes

Do AB1 push-pull power amplification

Major upgrade of core circuits

In super linear working mode

Output power up to 135W+135W

Configure and upgrade all vacuum tubes to be imported

RCA 25AX4GT vacuum tube rectifier power supply

Ballard CV4004/12AX7 vacuum tube for voltage amplification stage

TUNG-SOL 6SN7GTB vacuum tube as voltage driving stage

This combination is enough to make you intoxicated

Transistor and Superlinear

The two options are completely different. You can hear the continuous drizzle, and you can hear the thunderous sound of drums.

Transform from delicate and smooth to unrestrained and lively. The original hearing can also be instantly refreshed.

Vacuum tube current adjustment monitoring table

Intimate external adjustment function

Humanized design provides comprehensive solutions for you.

The beauty of stillness becomes a painting of its own

Aviation aluminum assisted by matte black oxidation coloring

North American black walnut solid wood side panels

[Red and Black] With a sense of sophistication and quality

Handcrafted, reference level standard

Fever grade components, refreshed and upgraded

Adopting American AUDIOCAPX high-end coupled capacitors, audio grade carbon film resistors, and high-quality

Broadband response EI power transformer, thick silver plated signal lead, and customized ALPS

High specification components such as potentiometers are all assembled by hand.