I'm trying to understand the impedance value on volume pots, eg. a 10k pot, 50k pot or 100k pot. What exactly is that impedance referring to?

Take a look at www.psaudio.com. Makes me all the more happy that everything in my system is either currently running off, or about to be replaced with something running off SLA batteries!

Well, I started it, but the parts that of course we are all interested in are the pictures, so get posting! I came rather late to the fray, but we had veteran head-fi'ers with all kinds of portable gear taking up table space at the Sony Plaza in Manhattan (as well as interesting looks from...

I've decided to build a SLA power supply for my HeadRoom amp. SLA is an excellent candidate due to the natural voltage of 12V, which with two SLA's can easly be wired for +/-12V, which can be run without regulation into the amp. I'm planning on using two of these...

The home page of musical fidelity doesn't say anything, but the picture curiously shows products that haven't been invented yet... I can't make out the v number for the CDP, but it's not a v3...

I just got hold of the first component in my system refresh - a used, but basically mint condition Musical Fidelity A3.24 DAC for $585 with a nice silver power cord to go with it. Came in a box for a Krell KAV400xi, so I can look at it and pretend I can afford a single component worth that much...

I can't find any reviews, but they look very interesting in the $1k range. Has anyone heard them, or indeed any of the Nohr speakers? Also looking at QUAD 22L's which I've owned before. Looking at floorstanders only.

My K1K will be arriving in NY from the UK in the next few days, ostensively to sell. But I want to give it one more chance, considering it has been underdriven in all the cases I've heard it, sounding harsh up top and lacking in the midrange, though surprisingly bass was quite impressive. This...

There appears to be a new $995 fully balanced DAC from PS Audio: http://www.psaudio.com/products/digi...i_overview.asp. I don't know if this has come up already, but I'm curious if anyone knows anything about it. I personally find there to be quite a large BS factor in a lot of PS Audio's...

I have a pair of K1000's that live in a budget second system on the other side of the pond, and have been trying to work out why they sound thin and somewhat sucked out. The source is an old Marantz cheapo CD player, which from using it with other equipment has a warm and soupy kind of sound...

It seems more than 1 of us ordered the $33 KOSS A250 headphones from the Koss corp. outlet on eBay, so I thought we could do with a thread to document the experience. Mine arrived today, and I'm currently stunned by the performance of these $33 headphones. I read somewhere they retailed for...

http://cgi.ebay.com/Stax-Aperio-Alph...QQcmdZViewItem Never heard anything about this strange creation. Anyone know anything about it?

Well I'm not going to say I'm a Headphoneus Supremus, because I have no idea if that will actually change with this post, but anyway, thanks to Head-Fi for helping me to waste more time than I possibly could have through other means, and for helping me empty my savings account. Bravo...

Has smurf blue gone the way of the dodo?

I bought a SqeezeBox, hoping that I might be satisfied with the analogue outputs it provides, however I'm itching for a better source. I don't really need the SqeezeBox as my source, as I was perfectly happy using Airport Express, and could easily go back to that and sell the Sqeezebox...

It was buried in another thread, but HeadRoom have quietly updated their AirHead and BitHead line - all models are now Total. They also now include a neatly hidden gain switch to help avoid hiss with IEM's. This was a significant issue with the mobile line, and it's good to see they have worked...

For those that are interested, I just noticed a new equinox cable for the DT-880 is now being offered: http://www.stefanaudioart.com/Replac...eadphones.html Interestingly, they decided to keep the stock headband wiring, and are also using a 3 conductor cable instead of 4. Though, I do trust...

From the 'why on earth didn't I think of this before?' department, or the 'what a complete waste of time and money' department, depending on your mood...: A while back NAIM announced their 'iSupply' for iPods and some of their smaller electronics. The iSupply is a rather simple looking wall...

Even more bass than a 650, measured? I wonder if there was some disparity in the way they measured them. I know graphs are only graphs, but it's still very curious.

I've had my 650's for about a year and the ear cushions are noticeably flattened, meaning that the headphone driver is being pushed closer to my ear, and there is less of an acoustic space around the ear inside the cusion. So the question is, are the pads meant to 'wear in', or are we meant to...

Myo kindly offered to send me his personal balanced GFT cable for the Sennheiser 580/600/650 headphones, which was obviously an offer I couldn't refuse. I would have taken pictures of it, however his photography is so much better than mine that I recommend you take a look at it in his photo...

http://www.headphone.com/pdfs/November%202002.pdf Someone had to post it...

As a long time 650 fan (check sig), with a particular dislike for the accompanying Cardas upgrade cable, I couldn't resist the opportunity to try out some Cardas recabled DT-880's. Firstly the cable is not standard, it's the special order 'HeadRoom Fat Pipe' made for, you guessed it, HeadRoom...

I was rather excited to find a note about these new ESL-2805 and 2905 speakers launched seemingly in the last few days. Their website says nothing about it, and there are just a few notes from CES about them around the web. It seems they are a structural/cosmetic design/parts upgrade from the...

I'm looking for a CD/DVD-A full bit output (unprotected only of course) and DVD video transport. The video quality is not particularly important, as is the analogue audio stage, I'm just looking for something with an accurate digital output. Coax or optical, both or either are fine. Any...