Hello oldmonk,
There's a fair amount of history to Lyrita Audio.
Lyrita Audio started in 1994, manufacturing solid-state Mosfet amplifiers and bookshelf speakers. Ten years down the line came the switch to tube amplifiers - based on listening experiences to the Quad II tube monoblocks. First, tube preamplifiers mated to solid-state amps, then all tube systems. The early products were 6L6 push-pull amps, EL84 push-pull amps, and EL34 push-pull amps. Covering output power ranges from 15 watts/channel to 35 watts/channel. (Someone's fooling you if they're advertising 50 watts/channel from two pairs of EL34 tubes).
New speaker designs using the high sensitivity Fostex single fullrange drivers, allowed the consideration of lower powered tube amps. A chance find of NOS RCA 2A3 tubes sealed the fate of Lyrita. There was a jump in sound quality with single-ended tube designs - enough, to not go back to push-pull designs. The quest for more power ultimately led to the GM70 amp, which will drive most audio speakers with ease. With the design of horn speakers, and their much higher sensitivity, the power game has no relevance any more. That is why, for great sound, Lyrita insists on systems.
There are other players in the Indian market, for push-pull tube amps - InsigniaHiFi, Anode Acoustics, Analog Audio Labs. Enough space here for all.
Regards,
Viren