Refer to the upgraded version of the American Elvis CAT-SL1 legend (adding balanced input and output and VU head on the basis of the old model) to take you into the realm of fever!
The sound characteristics of this machine: American sound style, very fullness, listening to the vocal or cello solo, the structure is convex and very strong, the sound field has an atmospheric sense of scale, and the dynamics are sharp. In general, the sound is healthy and sunny, vigorous and atmospheric. I personally like it very much!
The ATTRACTION of the famous American Elvis Presley (CAT-SL1) is that it can maintain the beautiful and RICH SOUND QUALITY of the VACUUM tube, while at the same time providing the UNIQUE CONTROL and LOW-FREQUENCY DIVING OF the crystal machine. The leading American AUDIO MAGAZINE STEREOPHILE, in 1993, selected the CAT SL-1 as the wind equipment of the year, YOU can imagine how powerful it is. CAT can be said to be a standard tuning secret technique. Three different types of VACUUM tubes are used on the ENTIRE LINE. The first level uses 12AU7 to take its HIGH BANDWIDTH and SWEET MIDRANGE. The second level is It's even more brilliant. The high-frequency amplifier tube 12AX7 is used as SRPP, which creates an extremely wide bandwidth and invincible dynamics of the entire line. Finally, 6922 or 6DJ8 is used as the output to obtain a very low output impedance and driving force. It can be used with any post-amplifier.
The high voltage of this machine adopts two 6×4 rectifier tubes for double-bile rectifier + Japan's Kubota-type field effect tube for high-voltage voltage regulator circuit, and the United States GE's expensive oil-immersed capacitors. The 6×4 rectifier tube is slightly better than the domestic 6z4 and the Russian 6u4n in speed, detail, and analytical power!Japan's Kubota-style high-voltage voltage regulator circuit adopts Hitachi field effect tube 2SK1170. As we all know, the field effect tube has the advantages of low output internal resistance, small ripple coefficient, and sweet sound. This is the difference between this circuit and other Taobao sellers, and it is also a highlight of this machine. This circuit also has a high voltage delay, anti-boot impact, and can protect the life of the amplifier part of the tube.
The audio output of this machine is equipped with an upc1237 boot delay (sound output will only be available after about 51 seconds) circuit to prevent boot shock and shutdown explosion!
The power supply of the amplifier tube filament adopts the original Lingte disassembled famous tube LT1085CP. This tube can provide a maximum of 3A of high current for two 12AX7 and two 12AU7 filaments (the actual filament current of the 4 tubes is 1.4A), the 3A LT1085 margin is sufficient, the voltage is very stable, the voltage is stable at 12.5V, 6.3V voltage regulation is LM317, which also has the advantages of small ripple coefficient and voltage delay.Two 6800uF/25V large-capacity chemical electrolytic capacitors serve as filament filters.
The amplifier circuit uses 4 high-fever-grade Mcap (Montauk, Germany) oil-immersed capacitors, 4 American Sibi oil-immersed capacitors, 2 Panasonic large-volume stepless fever capacitors, and American RA silver-plated (there are 12 RA resistors in total, which are used for cathode and coupling output, and for tuning. For tuning, one resistor costs 8 yuan) High-fever-grade resistors, other parts are used in Japan KOA, Panasonic, Weishi, etc. EIZZ gold-plated signal selector switch, Japanese alps27 volume potentiometer.
Note: The standard version of the above package piping: Dawn 6Z4*2, Noble Voice general foot ECC82*2, ECC83*2, Russia 6H23*1; balanced version: rectifier gallbladder United States 6X4, magnifying gallbladder Noble Voice Art series golden foot gallbladder ECC82*2, ECC83*2, Russia sovtek6922*1
Finished chassis size: width 430mm, height 90mm, depth 360mm, all-aluminum chassis, all-aluminum solid knob, net weight of the whole machine 10.8 kg
Technical parameters:
Distortion: 0.03% (input signal 1KHZ, test at output 1V)
Frequency response: 7HZ-30HZ (balanced input and output); above 5HZ-50KHZ (RCA)
Sensitivity: -43dBu
Maximum input +22dBu
Signal-to-noise ratio 92dBu
Output impedance: 600R
The following is a picture of the standard version of the machine:
The following is a picture of the balanced version of the machine
The following is the test data:
Note: This product does not include AC power cord
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