I've been away from Head-fi for a few years now. Actually I stopped visiting the site not too long after the re-vamp, where the look of the site was changed slightly and a major focus was put on controlling the aftermarket sales of gear - in particular DIY equipment. This was not too long after...

$24.99 at amazon with free shipping if you add another few cents to your cart: http://www.amazon.com/AKG-317--Ear-Bud-Headphone/dp/B0028N786G/ref=sr_1_1?s=electronics&ie=UTF8&qid=1300734929&sr=1-1   Really great price considering the retail is $89.99.  Hope some people can get in on this...

Any idea why we don't see (buffered) precision shunt regulators being used to create virtual grounds?

I'm considering tapping a hammond 1455 case for 6-32 screws. However, the case currently has the self-tapping screws installed. Has anyone tried tapping for 6-32 after installing the self-tapping screws? Thanks.

I find this very interesting. Especially how well the Pro 900 extends out to 20kHz. I haven't seen that before. Also, perhaps this gives some credence to people claiming that the Pro 900 is superior to the ed 8. PS please don't jump on this thread just to state that frequency response...

I want to open this up to people to share tips and ask questions on the best ways to organize cables in our builds. Personally, I'm looking for a part number (preferably Mouser) for these type of adhesive cable organizing things (circled in red)

The MS1000 vs the K701 – this sonata’s only for one Beethoven’s Sonata for Piano No. 31 in A-flat major op. 110 This was never going to be a fair fight. I haven’t heard a headphone that renders a good piano recording so effortlessly and precisely as the AKG K701. On the other hand...

There's been some talk of poor Grado build quality lately, and after receiving my rs1i a few days ago I want to comment that the build quality is really top notch. The precision woodwork and excellent wood quality is the most striking feature. But everything about them speaks to very high...

As a college student I often end up on the phone while working on group projects. A lot of the call time no one's talking (since we're working). So what I've started doing is putting an ear bud from my hands free in one ear and then my 650s over top. With the mic clipped on my shirt the person...

A well worn topic here that never seems to go away. It is the hissing that results from using low impedance high sensitivity phones with the PPAv2. It is not a gain issue. I tried a gain of 2 which actually increased the hiss over a gain of 11 using grado gs-1000s. To me this indicates that...

It seems that AT is using a pretty extreme scaling factor for their retail prices. It appears to be about 0.38. Apply this to the retail price of the ad700 and you get the actual selling price of $95. Similarly apply this to the retail price of the w5000 ($1700!) and you get Headroom's actual...

If you think the case should not be grounded this way (ie to the transformer bolt) please be specific as to why this is a problem in this build.

I finally decided to sell my Grado sr-325s. I know there's been a lot of controversy over these phones, but I've always felt that with a good tube amp and source these sound amazing. The payment for these has come through and I'm missing them already. I want to hold on to them, but I'm telling...

Well technically a DIY dimensional photo. I wasn't able to find a datasheet before I bought this, and now I thought it will be handy for other people to be able to see the exact dimensions and decide if it can work for their project. There may be an actual datasheet out there - I didn't look...

Just noticed that Mouser is selling a lot of Nichicon "boutique" caps. They have KZ, FW, KW, HN, etc. Maybe I'm the last one to the party here, but I wanted to let people know if they're not aware. The HN looks very nice for low voltage applications.

I'm planning to build a pimeta with tread that can be optionally powered by usb. When wall powered it will have 24V ac coming in to the tread. I will be using lmh6321 buffers and ad8610/20 op-amps. It seems I could bypass the tread and power the pimeta directly with usb as both the lmh6321...

I'm hoping some of the people with experience building balanced equipment can tell me which XLR jacks are considered the industry standard for balanced equipment. Basically I'm going to include chassis mounted XLR jacks on my Buffalo DAC for future use. I know a lot of people like the...

It seems to have a reputation for being just about as good as it gets, but I'm really starting to wonder. What brought me to this wondering is that I have two identical "maxed" PPAs in my possession right now, except that one has an ebay stepped attenuator with solid silver wire and one has a...

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Hmm, well I thought the 827 were really bad... now I'm not sure. Kinda of liking it now. I guess I need to spend some more time listening. Anyone else have experience with these two?

*All kits have been sold. My apologies to those who were not able to get one. Had I known there was so much interest I would have put a kit together months ago I have built a few of these over the summer and have some left over parts (power supplies, tubes, etc). I've put together a kit with...

Whatever amp you have or don't have. Whatever someone here said that you disagree with. It'll be OK. Really.

I'd like to see some pictures and info on miniature amps you've built. I've put together a little 2 channel ss that runs on 22V regulated power. I use a 24V switching power supply and have an lm317 regulator in the case (Tread essentially), 1320uF of rail capacitance, and virtual ground with...

Rightness is not an absolute thing. It is a determination based on circumstances and acceptable compromises. I'm building a cmoy style amp for my dad to use with Sennheiser hd555s. He is not an audiophile and he what he actually asked me for is a volume control His hearing is a little rolled...

I'm wondering what standoffs you guys generally use (brand and diameter). I think #3 is the right diameter for most pcbs, but am not sure. Also I assume most people use counter sunk screws to attach the standoffs to the case. I'm looking for hardware available from digikey or mouser. It's...