Hi, I would like to order one of these. Does it include transformers? How would you describe the difference between 1731 and 2520 opamps?
Hi rockinrob86,
The MP312-4 DIY kit contains:
Metal case (with screws kit)
Metal case for power supply
PCBs (Main PCB and PCB for power supply)
Power transformer (115V or 220V included)
Four ps of GAIN potentiometer
Four T-Pad 600ohm attenuator
DOA PCB (4ps of 2520 or 1731)
Audio transformers are not included! To order separatly!
1731 and 2520 has small difference. 1731 has more clear sound, It is my opinion. But 2520 more deeper in the mid range.