2. amps-preamps
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What's the best approach to add Headphone Amp?

I have a wonderful 2 Ch system consisting of Audio Research CD7, Ref 3, VM220 Monoblocs and Wilson Sophias.
I'd like to add a great headphone amp as well for the times the rest of the house is asleep. My CD7 has both balanced and single ended outputs, with the balanced output connecting to the Ref 3. Should I use the tape out from the Ref 3 preamp to connect to the headphone amp, or is it preferable to use the RCA output from the CD7 while the preamp is off? Does anyone actually have experience with this scenario? Using the Ref 3 provides input switching, but also adds a lot of additional circuitry when compred with a straight run from the CD player to the headphone amp.....Suggestions appreciated.
jdolgin
vandermeulen
191 posts
 
I have done both and found that straight from the source is the best. Let you system pre influence the external, open environment, and you head pre influence the closed environment.
marakanetz's avatar
marakanetz
5,473 posts
 
It depends on the input sensitivity of the headphone amplifier and certainly the sensitivity of headphones.
I use Consonance M20 headphone amp connected to the preamp's tape output driving AKG K701. I found it more refined and controlled than directly from the CD player. In addition I have analogue rig with most of M- records in my vinyl collection that do not produce clicks pops even through the headphones.
To be quite frankly, I would look for better driver than I currently have in the future, but I bet it will still stand great against any speakers.
I'd look for more bass that probably would never get with tubes and aim to some better deals on Grace Design M902 headphone amp.
jdolgin OP
82 posts
 
The specifics of going direct from the CD7 is that the balanced interconnects would be in place, connected to the preamp that is not powered up AT THE SAME TIME AS THE rca interconnects were running from the single ended output into the active headphone amp.
Do you see this as a problem?
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