Elekit TU-8400 tube amp kit NEW

Commencing shipping in October

The successor to the very popular TU-8200R power amp kit, the TU-8400 is another impressive example of single ended tube amp design by Elekit of Japan. 

Designed on the same compact footprint as the TU-8200R (one square foot) the TU-8400 presents in an all black livery for a striking visual impact.

Elekit's active automatic bias adjustment and a new power switching mode provides immediate support for a wide range of pentode tubes, from 6V6 to KT170 as well as mid power pentode tubes such as 6L6, EL34(6CA7), KT77, and KT88.

The kit is therefore supplied without tubes. 

Maintained is the ability to select Triode, Ultralinear or Pentode mode operation.

The TU-8400 is primarily a power amp designed to be used with a preamplifier, with an inbuilt Op-amp supporting the front mounted 3.5mm input for smart device connection.

A highly effective FET ripple filter design eliminates hum with individual filters for each channel.

Required tube complement is:

• Voltage amplifying tube 12AX7 (ECC83, 7025) x 1pc
• Output tubes x 2 pcs

Specifications:

*The values are representative values and not guaranteed values. 

Model No. TU-8400

Tubes : Voltage amplifying tube : 12AX7 (ECC83, 7025) x 1pc

            Output tube : 6L6 series, 5881, 7581, KT66, KT77, EL34(6CA7), WE350B, 6550, KT88, KT90, KT120, KT150, KT170, etc … HIGH mode

6V6, 6F6, etc … LOW mode

*Not included

Circuit configurations, etc Vacuum Tube Stereo Power amplifier

Output stage A-class, Single-ended, Active automatic bias (low-dissipation automatic biasing)

Heater power AC-power

B-power : MOSFET ripple filter (right and left channel independently, with fuse)

Mode : [Power mode] LOW, HIGH

[Output tube connection mode] UL(Ultra-linear, recommended), TRIODE, PENTODE

Max.output [HIGH mode] 2 x 9.8W(KT170), 2 x 8.6W(KT88), 2 x 8W(EL34), 2 x 7W(6L6)

[LOW mode] 2 x 3.3W(6V6), 2 x 2.6W (6F6)

(UL, 8ohm load, THD10%)

Rated input : [INPUT-1] 850mV rms

[INPUT-2] 225mV rms

(HIGH mode, UL, EL34)

Frequency response : 20-50,000Hz

(-3dB, UL)

Residual noise : 27uV rms

(IHF-A, 8ohm load, UL, HIGH)

Input terminal : [INPUT-1] RCA jack (back side), input resistance approx.50hohm

[INPUT-2] 3.5mm 3-pole mini jack, input resistance approx.12kohm

Output terminal : Biding terminal (Gold-plated, banana-plug compatible)

Headphone output : 3-pole standard (diameter 6.3mm) jack

Speaker impedance : 4-16ohm

Headphone impedance : 8-600ohm (corresponds to high impedance headphones as well), unbalanced

Power voltage : AC110-120V or AC220-240V, 50/60Hz

IEC standard 3P inlet type

Rated power consumption : 80W (HIGH mode, KT170), 71W (HIGH mode, EL34), 36W (LOW mode, 6V6)

Dimensions : W252 x H286 x D286 mm (with safety cover, incl. projections)

Weight : Approx.6.6kg (assembled, excl. tubes and AC cord)