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Hi, For those wanting to learn about building your own headphone amp, check out this video. Patrick Norton and David Caulkins shows you how to build your own CMoy Headphone amp in an Altoids tin in this episode of Systm. http://revision3.com/systm/headphoneamp/ Regards CK

I have been using my AMP5 for over a year now, driving my 86dB/W/m Usher S520s. They sound pretty darn good. It should be able to work well for you unless you have super low sensitivity speakers. Regards CK

Hi, I tried both the Westone UM-1 and Audio Technica CK-7. Both have their merits. The UM-1 is very natural sounding, with very refined and liquid smooth midrange and treble. Very nice for vocals. However the downside is that it has close to no bass. Soundstage is very good, as are the low-level details. If you are used to the EP-630, you may not like the UM-1. The CK-7 has much better bass, but the trade off is the relatively inferior (to the UM-1) midrange/treble. Soundstage and details are not as good, but I think overall it sounds "fuller" to me. I guess you have to try both (and possibly more) then make a decision. Regards CK

ok, so I found out what's wrong. Looks like I am not wearing it properly and it was not giving a good seal. I must have somehow got it correct at the shop. After some practise, I am now able to get it right and they are now sounding very good. Bass's a little on the light side though. Regards CK

Of coz. The mids and highs are still very nice, but somehow felt "thinner". Regards CK

Hi, Just got a pair of UM-1s - when I tried the test pair at Jaben, they sounded very nice and full. But the new one I got is kinda thin. Is this normal? I read that armature phones like this do not need burn-in, so I am not sure if that's going to help. I've tried both the default tips and the "Shure Olive" which they gave me (which looks the same as what's on their test pair). Currently using them un-amped from a iPod Touch. Thanks! Regards CK

On the other hand I might have gotten it wrong. I did a quick check on eBay and the prices looks rather reasonable. http://cgi.ebay.com/Obbligato-Copper-Case-...Q2em118Q2el1247 Regards CK

Wah, going into high-end capacitors now? These seem pretty rare though. Regards CK

Well, possibly to retrieve as much information (i.e. as close to these Belden/Canare/etc can give) as possible? If the studio uses cheap cables, and you use cheap cables too, you end up losing "twice"? Regards CK

You referring to this CD? Her playing is pretty good, but a little on the fast side compared to other recordings. Regards CK

The easy way will be to connect the SE-200 to the Pioneer, then take one of the Pioneer's Tape/Record Outputs and connect it to the headphone amp of your choice. Regards CK

Well, in the case of MRT or airplane noise, it's more or less constant. Regards CK

I haven't tried the in-ear earphones other than the Creative EP630 and the Sony EX71SL. Both isolates the noise to a certain degree, but is still rather loud. I do find the Creative Aurvana X-Fi to be very effective (more so than the 2 in-ears mentioned) in cancelling the noise though. Above ground, the train noise is nearly totally cancelled. Underground, there's still some noise remaining. Trouble is the bulk of it. I am not sure how the better IEMs like the UEs, Shures, Westones perform though. Regards CK

Good idea, I never thought of that You mean there's a USB version of the Monica 3 now? How much is the assembled version? How is the Aikido compared to the other tube designs like the Bijou, Millet Max, Morgan-Jones, SOHA, etc? Are the tubes required difficult to find? Regards CK

Hand itchy, but dunno when I am going to start though. Took me months to get started and complete my AMP5 the last time. Looks like you are into several projects at once eh? I have not heard the PPA or the others so I don't know how they sound like. Oh, one more criteria. If the headamp can be a pre-amp as well (like the CK2III) better still. I am not sure if those amps with a ground channel will function well as a pre-amp. Have you found the transformer for your Bijou yet? Regards CK

Hi, Looking to build something to upgrade my old META42 and Xiang Sheng 708B. For up to say, $200 in parts, what would be a good DIY amp to build (I am fine with either tube or SS)? Parts availability is a concern as well as sound quality (of coz). Don't need it to be portable. I will be driving AKG 501 and AKG 271S. Considering the following - - M^3 - CK2III - SOHA Thanks in advance. Regards CK

I heard a friend's unit on his HD600 many years back and it sounded pretty nice. Also looks very nice, small and cute. The DIY version of this is supposedly the Morgan Jones headamp. I didn't remember that the Earmax/Earmax Pro is THAT expensive though. Prices must have went up significantly over the years. Regards CK

Sadly, it has been like this for years. Both the HMVs here have drastically scaled down their classical collections, Tower likewise before it closed down. To add insult to the injury, the HMV classical prices actually went up. I now go to the Gramophone @ Capitol Building, though their collection is still not that extensive. Borders probably has one of the largest collection now. Regards CK

Hi, Where can this be found? Thanks. Regards CK

Hi, Won't be able to make it today. Will attend the next one, if any. Have fun! Regards CK

Thanks! Regards CK

Hi, I am interested to attend but probably nothing to show, can I come? Regards CK

How is the pot connected? Regards CK

Hi, Are you looking for noise-isolating 'phones like the in-ear earphones or active noise-cancelling headphones like the Bose QC2? For the latter, you can consider the Creative Aurvana X-Fi headphones at $499. If I am not wrong, this is around the same price range as the Bose and reviews say it outperforms the Bose. I have not personally tried the Bose so can't comment, but when I tried the X-Fi at the hifi show the noise-cancelling capabilities are pretty darn good. Regards CK

Hi, The casing looks small and cute, what's the Farnell part number? Thanks. Regards CK