40dB or thereabouts but an impedance-challenged design. SRPP driving 600 ohms load with HUGE caps. Sound is entirely cap-dependent. Considered it, but was advised against it.
First gain stage (without SUT) has 30-31dB gain (loaded with 600R LCR module), LCR module has about -20dB, output stage has 33-34dB, so overall gain is ... (if you omit 2k output "load" and use 100k) about 43-45dB.
In the best situation with a good selection of 6922/ECC88 it is around 37 dB
In 5 mV
out 380 mV
Adding Tngo 999 on 40x it goes at around 68 dB
Freq. response of my proto with Tango original stuff
The cap 47uF is better to go up to 33+33 uF, in the bass region is better
There are good choice with Wima MKP or Icel ( Italy ), are big but very fine
Walter
There are good choice with Wima MKP or Icel ( Italy ), are big but very fine
Walter
