CAL Alpha and an Equalizer


Hi all, Hope you can please bear with me through this post to explain my findings, and a possible solution?

About 5-6 months ago, I bought a mint CAL Alpha DAC from another A-goner here, and have posted before, about its characteristics, and sound.

I don't believe there is anything specifically wrong with it per se, just typicaly Alpha sound.

Well, first thing I did notice when replacing my long owned CAL Sigma II DAC, was a very "lean" glassy, analytical, and very hot sound, like the DAC was hitting my Mac Pre-Amp a bit too much on the hot side.

I have bought a pair of Endler's 12 Step Attenuators, and that solved the hot output, but it still sounds a bit lean. Can an EQ be inserted between the DAC, and Pre-Amp? Mark
markd51

Showing 2 responses by vegasears

What tubes and output cables are you using? I have an Alpha and those two things really affect the sound in my system.
Mark I have to agree with you regarding the tubes. I have had better luck using current production tubes than NOS stock in my Alpha as well. I do prefer NOS 12AU7’s and 12AT7’s to current production types in my other gear. A few years back I had an Alpha, which I bought here and it came with Golden Dragon’s. The printing on the tubes was very detailed, unlike some others I have seen lately. They may have in it for years before I got it, who knows? Those were the best of all the 12AX7’s I had ever tried in it. The guy I sold it to, was so nice I sent them along with a few other NOS brands. I am now regretting it. I’ve had my present Alpha for a month and I am really missing them. I have an order in for some 1990 NOS Golden Dragon’s and I’ll let you know how they sound.