SUQIYA-Refers To Audio Research Corporation SP10 6Z4 6X4 6922 ECC88 E88CC 6DJ8 Balanced Tube Preamplifier Audio

2023 Refer to the American ARC famous machine SP-10(6922/ECC 88/6DJ 8) fever tube front amplifier
1. Sound characteristics: transparent, refreshing, sound with high clear analysis power, fast and fat free, clear positioning, accurate and realistic musical timbre, high frequency extension naturally upward, medium frequency crisp and meaty, low frequency plump and powerful, three frequency coherence, overtone and hall sound rich with the details: Package 1: 6Z 4*2, 6922/ECC 88/E88CC/6DJ 8*4; Package 2:6 X 4 x 2, 6922/ECC 88/E88CC/6DJ 8 x 4.
2. Material fever: imported Z 11 core cattle, German GAD coupling capacitor, etc.

3. The actual test parameters are as follows:
(1) Minimum distortion: 0.014%(1KHz, output 1V test)
(2) Minimum input: 1.2mV(1KHz, distortion less than or equal to 1% of the test)
(3) Maximum input: 3.9V/14.2dBu(volume potentiometer turned on to the maximum test, such as sound potentiometer turned down can also input a larger signal)
(4) Maximum output: 78.8V(no load, 1KHz input, distortion at 1% test)
(5) Input spirit per degree -56dBu
(6) Frequency response: above 5HZ-30KHZ (instrument limitation problem, can only measure 30KHZ, the actual frequency response is very good, should be above 100KHZ)
(7) Input impedance: 60K
(8) Output impedance: 600R
(9) Magnification: 26dBu(14.3 times)
(10) Length 430mm* depth 360mm* height 90mm
(11) Net weight: 10.8KG
Note: No cables are included.

A: Unbalanced 6Z4 version without tube

B: Unbalanced 6X4 version without tube
C: Unbalanced 6Z4 version with tubeD: Unbalanced 6X4 version with tubeE: Balanced 6Z4 version without tubeF: Balanced 6X4 version without tubeG: Balanced 6Z4 version with tubeH: Balanced 6X4 version with tube