Bryston Headphone Interface

James Tanner · « **Reply #100 on:** 20 Apr 2011, 10:01 am »

Quote from: terrycym on 20 Apr 2011, 08:24 am

Let us know what you think of them james.
What do you normally use?

Hi Terry

I have a pair of Grados and AKG's.

James

redbook · « **Reply #101 on:** 20 Apr 2011, 07:43 pm »

I have the AKG 701's Fabulous phones but , yes, inefficient. I have to crank the preamp to about 2 o'clock for a reasonable volume level. Tell me this will be better with the new phone unit.

James Tanner · « **Reply #102 on:** 20 Apr 2011, 07:57 pm »

Quote from: redbook on 20 Apr 2011, 07:43 pm

I have the AKG 701's Fabulous phones but , yes, inefficient. I have to crank the preamp to about 2 o'clock for a reasonable volume level. Tell me this will be better with the new phone unit.

Yes lots of gain

james

rob80b · « **Reply #103 on:** 20 Apr 2011, 09:56 pm »

Quote from: redbook on 20 Apr 2011, 07:43 pm

I have the AKG 701's Fabulous phones but , yes, inefficient. I have to crank the preamp to about 2 o'clock for a reasonable volume level. Tell me this will be better with the new phone unit.

Same here with the 701s and I also have the K501s which are even more inefficient, but the best part is when someone disengages the phones without reducing the volume!!!!!
Which is why I still use an external head-amp.

Quote from: James Tanner on 20 Apr 2011, 07:57 pm

Yes lots of gain

james

Excellent, and lots of current? Grados can be powered by about anything to reach max volume but really like lots of current to bring out the best in them.

Robert

rob80b · « **Reply #104 on:** 20 Apr 2011, 10:29 pm »

Quote from: James Tanner on 18 Apr 2011, 11:54 pm

Hi DD

.......and I am thinking a matching power supply for those that do not have an MPS2 power supply.

James

Good idea as I would believe the largest audience would be those without an adequate stereo system to start with as a lot of head-fi users are mostly desktop oriented because they lack the space but still want to hear their music as best as possible.
Myself, I was just currently thinking of moving my head-amp behind the listening position at the back of the room (15 feet from the BP25) where my B60 plays second fiddle running surrounds and some headphone listening (the B60 needs to be cranked up to 3 o'clock, a little higher than the BP25).

Robert

redbook · « **Reply #105 on:** 20 Apr 2011, 11:09 pm »

Thankyou James,............and, yeh, I'm using the BP 25 as well ( at 2 o'clock)

myview · « **Reply #106 on:** 21 Apr 2011, 03:50 am »

Hi James,

Thank you. Let us know how it goes.

Quote from: James Tanner on 19 Apr 2011, 11:04 pm

Hi myview

Ordered a pair to try - boy the efficiency is really really low.

James

drummermitchell · « **Reply #107 on:** 21 Apr 2011, 06:58 pm »

I use some Sony Studio monitor pros HP's 7506,don't know how ificiant they are,I do know they handle
percussion very well(especially kick drum ect.
I had a set of grados(DJ type),kept blowing them on the lowend,tried out the Sony's and all is well.
Usually I have them going to a small board with a CDP connected and also my Roland TD-20 expanded drum brain.
The highs are greay thru the phones and especially the low end.
I forget the price,nothing worse for me than spending a grand and blow the lowend out of the HP's,
NO FUN

.

James Tanner · « **Reply #108 on:** 21 Apr 2011, 07:41 pm »

Version 2 - rear shot of headphone amp and power supply:

james

James Tanner · « **Reply #109 on:** 21 Apr 2011, 09:29 pm »

Version 2 Front view:

drummermitchell · « **Reply #110 on:** 22 Apr 2011, 01:40 am »

MORE PLEASE

.

rob80b · « **Reply #111 on:** 22 Apr 2011, 01:48 am »

Quote from: James Tanner on 21 Apr 2011, 09:29 pm

Version 2 Front view:

Now your talking, looks like all the bases are covered!
My Dyns are starting to get jealous.

Robert

James Tanner · « **Reply #112 on:** 22 Apr 2011, 01:51 am »

Quote from: drummermitchell on 22 Apr 2011, 01:40 am

MORE PLEASE .

rob80b · « **Reply #113 on:** 22 Apr 2011, 01:52 am »

Or as Laundrew expressed elsewhere.

Quote from: Laundrew on 21 Apr 2011, 09:40 pm

James Tanner · « **Reply #114 on:** 27 Apr 2011, 04:00 pm »

Headphone AMP - now in development:

Fully discrete Class A outputs and Independent power supply

james

terrycym · « **Reply #115 on:** 27 Apr 2011, 04:39 pm »

What's the idea of the XLR type connector on the right?

James Tanner · « **Reply #116 on:** 27 Apr 2011, 04:48 pm »

Quote from: terrycym on 27 Apr 2011, 04:39 pm

What's the idea of the XLR type connector on the right?

Hi Terry,

Some hi-end headphones offer Balanced connections.

james

guest62208 · « **Reply #117 on:** 27 Apr 2011, 05:51 pm »

Forgive me if I'm wrong, but wouldn't the amp require two XLR output jacks for balanced headphones? Every balanced amp I've seen was configured this way.

James Tanner · « **Reply #118 on:** 27 Apr 2011, 05:59 pm »

Quote from: Chris Granger on 27 Apr 2011, 05:51 pm

Forgive me if I'm wrong, but wouldn't the amp require two XLR output jacks for balanced headphones? Every balanced amp I've seen was configured this way.

Hi Chris,

In the case of headphones it is a 4 wire connection with no common ground - so 2 wires per headphone cup.

james

James Tanner · « **Reply #119 on:** 27 Apr 2011, 06:07 pm »

Quote from: James Tanner on 27 Apr 2011, 05:59 pm

Hi Chris,

In the case of headphones it is a 4 wire connection with no common ground - so 2 wires per headphone cup.

james

PS - I just realized Chris that you may be thinking this is an output to an amplifier - it is the output to the headphones.

Bryston Headphone Interface

guest62208