Bryston Headphone Interface

terrycym · « **Reply #160 on:** 31 May 2011, 10:06 am »

Quote from: James Tanner on 31 May 2011, 09:56 am

Yes - they were a little bright sounding at first but are breaking in nicely. Also have the top Grados coming.

james

The HE6s need a lot of driving, no problems with your Bryston headphone interface?

James Tanner · « **Reply #161 on:** 31 May 2011, 10:24 am »

Quote from: terrycym on 31 May 2011, 10:06 am

The HE6s need a lot of driving, no problems with your Bryston headphone interface?

Hi Terry,

You mean the brightness could be not enough juice from the headphone amp?

james

terrycym · « **Reply #162 on:** 31 May 2011, 10:45 am »

Nope, James.

Here's the spec:
Freqency Response: 8 to 65 KHz
Impedence: 50 Ohm
Efficiency: 83.5 DB
Weight: 502 g

You need lots of drive due to the low efficiency (like other orthos eg LCD-2)
At least 2 watts at 50 ohms is good.
What can the Bryston provide?

The brightness is due to lack of run-in.

Terry

terrycym · « **Reply #163 on:** 31 May 2011, 10:47 am »

Quote from: James Tanner on 31 May 2011, 10:24 am

Hi Terry,

You mean the brightness could be not enough juice from the headphone amp?

james

There was a review of them here:
http://www.6moons.com/audioreviews/hifiman2/1.html
They mention how much drive is required.
Basically, they conform to the K1000 standard of 4 pin XLR and low efficiency.
The deep bass was a bit lacking but the rest of the qualities made up for that.
They needed >> 100 hours of run-in and were pretty crappy straight out of the box.
They need quite a bit of driving and one for you James, come with a four pin XLR plug!!!

Can your headamp drive AKG K1000's James?

James Tanner · « **Reply #164 on:** 31 May 2011, 11:19 am »

Quote from: terrycym on 31 May 2011, 10:47 am

There was a review of them here:
http://www.6moons.com/audioreviews/hifiman2/1.html
They mention how much drive is required.
Basically, they conform to the K1000 standard of 4 pin XLR and low efficiency.
The deep bass was a bit lacking but the rest of the qualities made up for that.
They needed >> 100 hours of run-in and were pretty crappy straight out of the box.
They need quite a bit of driving and one for you James, come with a four pin XLR plug!!!

Can your headamp drive AKG K1000's James?

Have not tried the 1000's - what are the specs on them?

james

terrycym · « **Reply #165 on:** 31 May 2011, 11:33 am »

Quote from: James Tanner on 31 May 2011, 11:19 am

Have not tried the 1000's - what are the specs on them?

james

Specifications
Type: Moving coil headphones
Impedance: 120 Ohms
Sensitivity: 74dB for 1mW free field
Frequency Response: 30Hz to 25kHz
Power Requirement : 100mW for 1Pa
Distortion at 400mW: around 100dB
- 2nd harmonic <0.5% 200Hz to 2kHz
<1.0% 100Hz to 200Hz
Power Rating: 1000mW (test tone DIN 45582) corresponds to approx 104dB
Headband: force exerted on 140mm wide head 3.5N (DIN 45580)
Weight: 270g without cord, 370g with cord and connector
Test Conditions: free space
Accessories Supplied: wooden case, 10-foot extension lead.

Vipers · « **Reply #166 on:** 31 May 2011, 09:54 pm »

Quote from: James Tanner on 31 May 2011, 09:56 am

Also have the top Grados coming.
james

Loving the new look of the Headphone amp James, really look forward to hearing your thoughts on the Grado's, I take it you are talking the PS1000's, they are on my shortlist

Any Idea of a rough release date yet?

Thanks.

James Tanner · « **Reply #167 on:** 31 May 2011, 10:35 pm »

Quote from: Vipers on 31 May 2011, 09:54 pm

Loving the new look of the Headphone amp James, really look forward to hearing your thoughts on the Grado's, I take it you are talking the PS1000's, they are on my shortlist

Any Idea of a rough release date yet?

Thanks.

Hope about 60 days.

BHA-1 with Internal power supply

BHA-1 with External MPS-2 power supply

james

BrysTony · « **Reply #168 on:** 1 Jun 2011, 01:14 pm »

James,
Will there be two versions? With internal PS and without?
Tony

James Tanner · « **Reply #169 on:** 1 Jun 2011, 01:35 pm »

Quote from: BrysTony on 1 Jun 2011, 01:14 pm

James,
Will there be two versions? With internal PS and without?
Tony

Hi Tony,

Yes.

james

James Tanner · « **Reply #170 on:** 1 Jun 2011, 01:58 pm »

james

mkaiser · « **Reply #171 on:** 1 Jun 2011, 05:33 pm »

The head amp looks excellent James. Just as i hoped it would look. Available in 19" face?

Mark

James Tanner · « **Reply #172 on:** 1 Jun 2011, 05:58 pm »

Quote from: mkaiser on 1 Jun 2011, 05:33 pm

The head amp looks excellent James. Just as i hoped it would look. Available in 19" face?

Mark

Hi Mark,

I assume so as we have had major interest from the pro studio guys.

james

Vipers · « **Reply #173 on:** 2 Jun 2011, 10:12 pm »

Quote from: James Tanner on 31 May 2011, 10:35 pm

Hope about 60 days.
james

Excellent, the next million dollar question, roughly, How Much James?

It will be interesting when it is ready for release if you can list some of the headphones that you've tested that you feel work particularly well with the BHA-1 as I can't make my mind up what to go for

Thanks.

skunark · « **Reply #174 on:** 2 Jun 2011, 10:56 pm »

Any inside shots?

mkaiser · « **Reply #175 on:** 5 Jun 2011, 03:27 pm »

Hi James,
Will the head amp have the option of having an internal DAC? Also can you take a rear shot of the unit.

Thank you,

Mark

James Tanner · « **Reply #176 on:** 5 Jun 2011, 05:28 pm »

Quote from: mkaiser on 5 Jun 2011, 03:27 pm

Hi James,
Will the head amp have the option of having an internal DAC? Also can you take a rear shot of the unit.

Thank you,

Mark

Hi Mark,

No DAC - I will try and get rear pictures for you.

james

James Tanner · « **Reply #177 on:** 5 Jun 2011, 05:55 pm »

Quote from: Vipers on 2 Jun 2011, 10:12 pm

Excellent, the next million dollar question, roughly, How Much James?

It will be interesting when it is ready for release if you can list some of the headphones that you've tested that you feel work particularly well with the BHA-1 as I can't make my mind up what to go for

Thanks.

Hi Vipers,

A little to early to say price wise but I am hoping about $1000 list with internal power supply.

james

nikon · « **Reply #178 on:** 6 Jun 2011, 02:15 am »

James

What would approx. price be for unit without internal power supply for those with an MPS-2

James Tanner · « **Reply #179 on:** 6 Jun 2011, 10:38 am »

Quote from: nikon on 6 Jun 2011, 02:15 am

James

What would approx. price be for unit without internal power supply for those with an MPS-2

Hi nikon,

Not sure yet.

james