Tube Preamplifier

by sradg123 Tue Mar 21, 2023 8:58 pm

SR-21T3is Tube Preamplifier

FEATURES

All wiring with pure silver wire

Extensive point-to-point handwiring, fully hand-made preamplifier tube,

allocated preamplifier for audiophile–of enthusiasts of tube technology.

The preamplifier carried out is on four tubes 6922,

the attractive design provides very good sound that you can enjoy

the music for a longer time and being touched.

· Automatic biasing circuit, zero feedback designs.

· Power supply and audio section are heavily shielded.

· The circuits are arranged to achieve the shortest possible signal path

and to obviate internal wire connections from the input to the output terminals.

· Tube complement: 4* 6922 dual triodes,

1 * 6X4 with double chokes rectifier.

Four 6922 tubes work under four independent voltage regulators.

· Using DACT CT-2 high precision Attenuator

· Three set of independent Transformers for the power supply

SPECFICATIONS

· Freq. Responce: +/- 1dB from 10Hz to 100KHz

· Signal-to-Noise Ratio: >100dB

· Total Harmonic Distortion: < 0.05%

· Input Impedance: 100K Ohms

· Output Impedance: 200 Ohms

· Total Gain：+20dB/1KHz

· Input：RCA *2 pairs , cd input set uses the WBT RCA chassis socket

·Output：RCA * 5 pairs , 1 pair uses the WBT RCA chassis socket

· Power Source: 100-130 / 220-240VAC,50/60Hz

· Dimensions: 480*150*320mm(W*H*D)

· Net Weight：50.7 Ibs(23 Kgs)

Warranty： 10 Years Parts and Labor / Tubes for 90 days

New in box

Price: USD 4,300