Prodám lampový předzesilovač, postaven na základu referenčního CONVERGENT AUDIO TECHNOLOGY CAT SL1 (cena originál 9990 USD).
Plný zvuk, prostor, detail.
Zapojení ke koncovému zesilovači, nebo k integrovanému zesilovači.
Lampy koupeny před 2 měsíci na tubeampdoctor za 115 Eur, záruka, doklad. Celkově nevyužitý, stav jako nový.
ECC803 S TAD Premium Selected 2x
EH 12AU7 / ECC82 Gold-Pin Elektro Harmonix / Russia 1x
JJ E88CC / 6922 Gold JJ Electronic 1x
The CAT-SL1 design bile duct is not like the other brands - multiple isotypes; but the targeted tube to meet the school requirements, the first level U-tube 12AU7, choose a relatively strong bile The input tube; the second stage uses a high U tube (12AX7), which is an SRPP structure, taking its bandwidth and buffering between the front and the back, and also preparing for the third level. The third stage is 6DJ8, which has a larger screen output current, so as to push the rear stage power amplifier.
The PRT08A is designed to be faithful to the original SL1 amplifier circuit parameters, without any adjustments; our updated parts are larger than the power supply:
The high-voltage power supply uses a regulated power supply, and the MOS tube is used as a voltage regulating tube to make it more daring.
The filament is divided into two sets of voltage regulators, which respectively supply 12AU7, AX7 and 6.3V 6DJ8 (6922)
In the PRT08A, we added a 30-second delay-on output component that has reduced the "ghost" sound of the pre-biliary pre-boot.
In terms of ingredients, Panasonic and 718 god resistance, gold-plated ceramic tube holder, BC-Philips capacitor, ELNA capacitor, etc., high-voltage voltage regulator tube selection, Toshiba tube, coupling capacitor is ERO+MKP series, which has high cost performance.
In order to meet the needs of modern listening, this machine uses a custom-grade R-type transformer to match the school sound.
The chassis is made of aluminum panel and iron body (strong anti-WIFI interference)
Potentiometer is ALPS 27
Taiwan production sandblasting RCA, with four input selection switch.