Output power, nominal (8 Ohm), W— 25
Output power, High mode (8 Ohm), W— 35
Weight amplifier/power supply, kg — 150/80
Ultimate 300B SE — Sonic Master
Integrated amplifier S.A.Lab 300B SE reveals formerly unexplored fantastic capabilities of the legendary audiophile triode 300B and unique advantages of S.A.Lab circuit design.
Really uncompromising engineering and musical perfection — essence and formula of this adorable amplifier. His refined musical gracefulness inspires, excites, enraptures…
Based on 300B single ended (class A) integrated amplifier embodies technology of direct coupling between stages. There are no interstage coupling capacitors in 300B SE. Alexey Syomin provided six tube rectifiers in each channel and power supply as separate piece (S.A.Lab 300B SE includes amplifier as well as power supply).
Input channel rectifiers were based on 6с33 and СГ4 stabilitrons; underground supply — on VR150 (France); driver’s rectifiers — on two EC360. All channels’ stages have separate anode transformers. Power supply of all stages is implemented by direct current and stabilized by means of in-phase chokes. Totally 300B SE has 10 chokes and 8 heating transformers. Anode current rectifiers is realized on high voltage Schottky diodes and have two chokes in channels’ power supplies.
Input tube is EL803s (Philips, 1967) in pentode mode. Driver is EL804 (Telefunken, 1959) as triode. Output stage is designed on six meticulously selected 300B (Saratov, Russia), there are three 300B in each channel in parallel.
П-core output transformers (iron from Korea) include four 7-part waffles. Each transformer’s weight exceeds 50 kilos.
В 300B SE has four line inputs, two toggle switches for turning anode heating on/off and selecting output transformer mode for getting output power of 25 (nominal) or 35 W. 300B SE has remote control for input selecting, volume adjusting, mute mode activating and sleep timer programming. Front panel knob allows for turning power on/off, input selecting and volume adjusting.
Nobody will be underwhelmed by S.A.Lab 300B sound as in case of acquaintance with any truly uncompromising S.A.Lab state-of-the-art masterpieces.
Please read 6moons review:
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