No need to be sorry, this is all subjective. I have the SHP8900, and I think they are pretty good for the money. I also have the higher end Philips HP1000, this is leaner on bass than the 8900, but I still consider it to be a superior headphone. IMO, the bass is exaggerated and I don't think...

Bass seems OK to me. I really want to compare it to an HD600 as this seems to be the reference can still. I am hoping to build a SuSy balanced Dynalo and make some balanced leads for it, but I have so many projects, its probably a year out. So far my Dynalo serves me fine, but I expect balanced...

Hi Guys, upon closer inspection, it was evident there was no glue on the wires, so I chanced it. I gently pried the cover off, and found that the driver was in pristine condition. What had happened was that deteriorated felt from the cushions had got into the driver via a hole in the rear, kinda...

Greq and Cosmomemory, thanks for your help. I think I will not risk it. The cans only sometimes on very bassy tracks make a slight distortion sound. Its not worth risking it. They usually are perfect and I cant tell they have a slight issue. 

I got the driver out but it has a  membrane on it, I dont think it comes off. Any ideas?    

  Its not bad enough to scrap it, its only on very low bass, which is why I think It may be mechanical problem, but I hear you :) I may try this, did you try bluetak?

Thanks Moriez, I will try the blowing and see if it helps. Any idea where I can get a driver from?

HI All, I bought some HD540 a while ago, and I noticed a slight vibration in one of the drivers. I disassembled it and tried to locate the source of the vibration to no avail. I did understand how to remove the white diaphragm cover over the driver and didn't want to rip it off. So I didn't...

me too...

Judging by your avatar you would know:) I think it had AD8610 opamp but cant remember, I didn't have it long. At the time I think I had ATH-AD700 HP, which wasn't for me, so its hard to know why I decided to get rid of it. I'm not so much into opamp rolling, but I'm quite keen to try the new...

I think its real name is an M cubed, its quite well known design: http://www.amb.org/audio/mmm/   The amp you are describing is I think the balanced version of the Dynalo I like so much. I get no glare or cold. I find it very transparent and neutral. It has dynamics and good bass.  Dynamics is...

Hi Jeremiah,   I am quite curious about this amp but when I read warm and tube like I loose interest. I had an M3 and found it too soft and warm for my liking. Is the Beta22 a similar signature? My next amp will be a balanced dynalo, SE version is excellent so I'm going to try balanced but...

      Cap multiplier, the second is a Salas Shunt and Dynalo on top, third is my chaotic desk, I got so much hifi and I usually listen FM National Radio:)

Hi Ajuztam, all voltages are correct apart from the ones I have mentioned above. Transistors are all soldered, only the jfets use sockets and R11 and R14.   Anyone else have any ideas?

I had some problems with my Dynalo, but its going great. I could bias the front end as the trimpots were causing probs. It has Salas shunts and a separate capacitance multiplier psu. Will try and take some pics.

Hi Funch, thats a nice build. I like the unbilical and the cases. Where do you get those umbilical plugs and how many poles are they? How bot the cases, are these from ebay? 

Thanks Guys,   it works today. Must have clocked up 15 posts. Joe this is really hard to find, I tried searching and came up empty handed. If I could make a suggestion, maybe the error could explain what's wrong i.e you have to pst 15 times before being allowed to post a classified add?    

If I try and create a classified I get a message that I cant post a classified and the read the rules. Where are the rules, there is nothing in the terms of service regarding this and no one has responded to email query.

They are pretty.

how is galvanic isolation for USB better than a simple dedicated power supply? 

Its quite an expensive amp, is it so much better than the M3?

Hi, Ive got an M3 amp and σ11 boards fully built up and tested. Im not using and building another so its got to go. PM me if your interested. 

Is the airport express like a squeezebox? 

What's an estimate of the bulid cost for a stereo B22 and power supplies?

Quote: That's interesting, is this common for open headphones to be heard across the house?