Gain Surgery T4

Custom hand made all tube high gain amp Only 1 channel for all the GAIN The chassis is from a Mesa Boogie DC5 combo. The power transformer and the graphics EQ potmeters are also kept. topology: 1; switchable drive boost with 2 tube stages: - on off switch - drive potmeter - boost freq selector switch - Tone potmeter - mid punch switch - level potmeter 2; high gain preamp with 4 tube stages: - 1st stage: tight switch, tightness potmeter, gain potmeter - 2nd stage: gain like roar potmeter with punch switch - 3rd stage: mid shape freq range start selector switch, mid shape potmeter, gain like roar potmeter - 4th stage: high roll of potmeter, tone slope potmeter, vintage-modern switch(high and mid freqs range), bass + mid + treble potmeters 3; serial effects loop with 2 tube stages: - send level potmeter (on the back) 4; switchable graphics EQ with 2 tube stages: - on off switch - 5 band sliding potmeters for lows, low mids, center mids, high mids and highs 5; volume potmeter 6; phase inverter with parallel tube stages: - long tailed pair - bias switch - PPIMV - presence and depth potmeters in global NFB 7; output stage: - 2 x 6l6 - SLO 50 output transformer - 4, 8 and 16 ohm jacks change From previous tier: - Extended mid shape capabilities - Fixed GEQ capture signal path: - Focusrite Scarlett 18i8 3rd gen. output - Radial Pro RMP - Gain Surgery T3 - Two Notes Torpedo CaptorX - Focusrite Scarlett 18i8 3rd gen. input