I don't believe you can conduct an objective comparison of any VAC preamp, even of current production, with a preamp from anther company. Every company produces a product that is different from the others.
VAC has a "house sound". It's clear and distinct, but it's not analytical, dry or neutral, IMO. It has a certain bloom without being syrupy. It's what people refer to as "the VAC magic". All VAC products have it, no matter their age.
So, I believe you're headed down the wrong path by comparing an older VAC product with newer products from other manufacturers. You either want the VAC sound, or you do not, which is why it's important to hear a VAC in your system to decide if the sound is what you're after.
If you buy a used VAC product, then you can audition it and resell it without a loss if it doesn't suit you.
VAC has a "house sound". It's clear and distinct, but it's not analytical, dry or neutral, IMO. It has a certain bloom without being syrupy. It's what people refer to as "the VAC magic". All VAC products have it, no matter their age.
So, I believe you're headed down the wrong path by comparing an older VAC product with newer products from other manufacturers. You either want the VAC sound, or you do not, which is why it's important to hear a VAC in your system to decide if the sound is what you're after.
If you buy a used VAC product, then you can audition it and resell it without a loss if it doesn't suit you.

