2. amps-preamps
  3. 1042490849

McCormack DNA-2 DLX balanced input impedance

I recently upgraded my pre/pro and now have balanced outputs. I would like to use balanced cables between this and my McCormack DNA-2 DLX. Upon inquiring about doing this, it has come up that I should send my amp back to Conrad Johnson/McCormack Audio of Virginia and have some mods done to change the input impedence from the current "high" level to a "low" level. Apparently they're saying that this provides a more stable amp.

Does anyone have any experience or similar experiences with their McCormack amps and XLR interconnects?
bundy
4yanx
1,576 posts
 
I have not heard that McCormack of Virginia was offering upgrades of any kind to the DNA-2. What you may have heard is that Steve McCormack's own firm is offering such (and they are worhtwhile). smcaudio.com is where you might look.

Also there is a related thread currently open discussing the general changes visa vis McCormack (Steve McCormack) and Conrad-Johnson (McCormack of Virginia).
bundy OP
127 posts
 
I am aware of the SMC upgrades. This was an inexpensive mod to alter the input impedance only. They seemed to indicate that I should not use the XLR inputs until doing this.
bigtee
803 posts
 
Call Mccormack @ smcaudio.com and ask him. He will tell you what you need to do and go from there.
eagle
154 posts
 
SMc changed the balanced and unbalanced inputs on my DNA-2 to Jensen transformers when I had it there for upgrading. I'm not sure what changes resulted for input impedance, but it eliminated the circuit boards and jumper switches. I'd be interested to know what McCormack Audio of Virginia is doing to mod the inputs on these amps.
More to discover