http://www.head-fi.org/forums/ en Fri, 20 Nov 2009 21:43:35 GMT vBulletin 60 http://www.head-fi.org/forums/images/misc/rss.jpg http://www.head-fi.org/forums/ http://www.head-fi.org/forums/f6/amb-m3-capacitor-coupling-question-456549/ Fri, 20 Nov 2009 21:24:05 GMT I'm looking over the schematics of the AMB M3 and I'm trying to figure out if the required 100uF and 330uF aluminum electrolytic capacitors are even in the signal path (debating whether to get some nice boutique capacitors like some Elna's or just go with high-grade Nichicon KW's, and save some money)

I'm not an electrical engineer (hobbyist at this point, not gotten to the electronics sections of my major), so I'd like to verify this information before I dump a bunch of cash into boutique capacitors.

Thanks ]]> DIY (Do-It-Yourself) Discussions mewrei http://www.head-fi.org/forums/f6/amb-m3-capacitor-coupling-question-456549/ http://www.head-fi.org/forums/f6/like-tank-frickin-tank-456547/ Fri, 20 Nov 2009 21:20:40 GMT Now that I have a little bit of free time I'm finally getting down to making a pair of headphones I've been dreaming about. The idea is to make the most tank like headphones possible (with-in reason, but we are talking about things like a solid milled aluminium body, gimbal mounted cups, etc.). Doing a lot of mixing, teching on shows and lots of audio based performances, one wants a pair of headphones that can take a licking and keep on ticking, and being an art student ( Example ) with machining skills, why not go all out?!


I need some help figuring out which interconnects would be best. I'm making a couple of pairs since the cable will be replaceable on the cans (4 pin xlr connection using the Neutrik X-HD series since I love working with Neutrik XLRs and their chuck-type strain relief system is lovely).

So in your guys experience what are the most rugged and well build 1/4" and 1/8" plugs available? Furutech 1/4" looks good and I've looked at the Viablue 1/8"-ers, but their strain relief seems a bit weak for them.



. ]]> DIY (Do-It-Yourself) Discussions FourierMakesFunk http://www.head-fi.org/forums/f6/like-tank-frickin-tank-456547/ http://www.head-fi.org/forums/f6/wire-rca-1-4-a-456458/ Fri, 20 Nov 2009 05:05:17 GMT I need to make a 1/4 TS to RCA cable and was wondering what kind of wire I need to use for this. I need to make a 1/4 TS to RCA cable and was wondering what kind of wire I need to use for this. ]]> DIY (Do-It-Yourself) Discussions bik2101 http://www.head-fi.org/forums/f6/wire-rca-1-4-a-456458/ http://www.head-fi.org/forums/f6/running-out-time-wires-456390/ Thu, 19 Nov 2009 21:55:34 GMT I have to get this done before I go to work, so straight to the point... In order of importance - Can you use solid wires to make audio... I have to get this done before I go to work, so straight to the point...

In order of importance -

Can you use solid wires to make audio interconnects, or is that a 'no-no'.

Is stranded wire better?

Should I use speaker wires or the stranded wire you buy on a spool?

Is there a comercially available (i.e. you can buy it at RadioShack) brand of wire that is better than the rest?

I'm such a newb.... ]]> DIY (Do-It-Yourself) Discussions oddity http://www.head-fi.org/forums/f6/running-out-time-wires-456390/ http://www.head-fi.org/forums/f6/help-regarding-premium-clock-upgrades-456326/ Thu, 19 Nov 2009 16:20:27 GMT I've been looking at the possibility of replacing the crystal oscillators in my DAC. I've read everything I can find here and at diyaudio about the Audiocom Superclock, Ultraclock, et al.

What I'm not quite understanding is the distinction of these expensive units. For example, the Superclock4 has a rated accuracy of +/- 2ppm. Thats not bad but I can get an off the shelf TCXO thats specifies +/- 0.5ppm.

Is the unique quality of these premium clocks in their power supplies?
If so, being more familiar with analog circuits anyway, I can do that part myself.

Am I on the right track here or am I missing something? ]]> DIY (Do-It-Yourself) Discussions Champ10 http://www.head-fi.org/forums/f6/help-regarding-premium-clock-upgrades-456326/ http://www.head-fi.org/forums/f6/ess-sabre-dac-chip-info-search-456324/ Thu, 19 Nov 2009 15:54:29 GMT First hello,

I'm an electronics hobbyist, and after my last DAC project (Dual PCM1792DAC),
i plan to design a new DAC with probably the best DAC chip available,
the ES9018 "Sabre" DAC from ESS.

My first step of design is to examine the datasheet of the IC and started
to draw a schematic.

Unfortunatly,despite my research i don't find a full datasheet of this IC.
Of course, we can find some interesting info at the esstech.com web site,
but not a real datasheet...

My other problem is where i can buy it.
I'm in France, and the distributor is Ismosys (Ismosys).
This web site seem to allow buying parts, but after two e-mail for requesting
some information, i have no reply...


I would to know if someone have more info than me about it, and if he
would to share with me those informations !


I thank you all DIYers for his/her reading. :)


Frex.


Note:
Direct link for info about Sabre DAC Here:
ESS Products - DAC

and the distributor web store here:
ismosys.com ]]> DIY (Do-It-Yourself) Discussions frex http://www.head-fi.org/forums/f6/ess-sabre-dac-chip-info-search-456324/ http://www.head-fi.org/forums/f6/need-someone-modify-millet-hybrid-me-456307/ Thu, 19 Nov 2009 14:24:48 GMT I am not a DIYer. I bought a used Millet Hybrid from the f/s forum and love it. After reading through all the posts on this amp, I purchased an... I am not a DIYer. I bought a used Millet Hybrid from the f/s forum and love it. After reading through all the posts on this amp, I purchased an assembled diamond buffer for it, hoping to be able to just pop it into place. Unfortunately, the person who made the amp used capacitors that encroach into the white rectangle where the db goes. Is there someone who would be willing to unsolder those 2 caps and put in smaller diameter ones? The capacitors are in the place called C2R and C2L and say cerafine 220μf. I would of course be happy to pay. Is this possible? Can someone help me? ]]> DIY (Do-It-Yourself) Discussions Justin Uthadude http://www.head-fi.org/forums/f6/need-someone-modify-millet-hybrid-me-456307/ http://www.head-fi.org/forums/f6/balanced-solid-state-amp-options-456276/ Thu, 19 Nov 2009 07:34:21 GMT Hi there, I've been away for a year or so...and I see a new amp in my future :) I've looked around and surprisingly, there doesn't seem to be a helluva lot new on the DIY front since I was last here, other than the Cavalli EHHA.

Anyway I've been loving my Millett Hybrid Max, but I got the itch again. This time I'd like to take advantage of the balanced outputs on my souped-up Emu 1212m. And I think I'd like to go solid-state this time (too many tubes to worry about on a balanced tube amp!).

Obviously I'd like something at least in the same league as the Millett, in terms of sound quality. I still want a musical sounding amp but something geared more toward detail, rather than the tube sound.

What are my options there? I'm prepared to spend a few hundred dollars, not including enclosure, if necessary, but the B22 is too much. What other SS amps have people made in balanced configuration?

BTW, plan to use this with K701s... ]]> DIY (Do-It-Yourself) Discussions slowpogo http://www.head-fi.org/forums/f6/balanced-solid-state-amp-options-456276/ http://www.head-fi.org/forums/f6/unrelated-question-456235/ Thu, 19 Nov 2009 00:53:15 GMT is there a resource or forum that will show me how to build a amp for full sized speakers (i don't know what they are called), i have a stereo and the center piece died but the speakers are still usable and i want to salvage them

i apologized in advance because this is off topic but this seemed a good place to ask. ]]> DIY (Do-It-Yourself) Discussions expxe http://www.head-fi.org/forums/f6/unrelated-question-456235/ http://www.head-fi.org/forums/f6/washing-headphone-pads-456210/ Wed, 18 Nov 2009 21:45:34 GMT not sure if this is in the correct section or not..i read a few posts that mention washing pads off of headphones, especially those bought used. i... not sure if this is in the correct section or not..i read a few posts that mention washing pads off of headphones, especially those bought used. i was just wondering how this should be done? simply washed with water and allowed to air dry? i have a pair of senn 580's that i bought a few weeks back and was thinking about giving the pads a wash as recommended, but wasn't sure how. thanks. ]]> DIY (Do-It-Yourself) Discussions bik2101 http://www.head-fi.org/forums/f6/washing-headphone-pads-456210/ http://www.head-fi.org/forums/f6/any-ideas-solve-turn-off-transients-my-m3-456202/ Wed, 18 Nov 2009 21:15:25 GMT So I recently completed my M3 build. I have the e12 muting circuit and that nicely solved the minor turn-on transients, however it does not seem to... So I recently completed my M3 build. I have the e12 muting circuit and that nicely solved the minor turn-on transients, however it does not seem to solve the turn-off transients.

I am using the e24 power switch circuit with a SPST relay (Omron G8P-1A2T-F-DC12), I suppose I could replace that DPST relay and use the other pole to switch the e12 power. Only one I could find that seem suitable was T92S7D22-12 Tyco Electronics / P&B General Purpose / Industrial Relays

Wondering if it would be better to just add another smaller SPST relay for the e12 circuit. Course would have to make sure the coil current does not exceed that of the e24.

Anyone have ideas beyond adding a relay that could solve the turn-off transients? Or should I just ignore the small turn-off noise? ]]> DIY (Do-It-Yourself) Discussions m1abrams http://www.head-fi.org/forums/f6/any-ideas-solve-turn-off-transients-my-m3-456202/ http://www.head-fi.org/forums/f6/project-m-home-studio-speaker-amp-456170/ Wed, 18 Nov 2009 17:14:57 GMT Hey! I’m a new M³ builder from Finland. I’ve previously taken on various DIY projects, but usually they were complete kits – “just look at part... Hey!

I’m a new M³ builder from Finland. I’ve previously taken on various DIY projects, but usually they were complete kits – “just look at part numbers and solder”. So this is my first project with many options and a huge variety of parts to choose from. The reason I started this thread is to partially act as a progress log, but mainly to get info and help from those with more experience with DIY-audio hardware, so I’d do this right the first time.

Thankfully, AMB.org is VERY helpful with this project, but since this is a variation of the traditional M³-build I might need a few tips here and there.

The purpose of the finished product is to act as a speaker amplifier used with a HD-audio computer soundcard. I use this computer to make and listen to music (all kinds, mostly rock). The room is medium sized (~12m²).

I’m going to build the amp using 2 M³ boards in a balanced configuration. I’m planning on leaving the ground channels completely unpopulated. I’m also not going to add the bass boost option, but to use the bass boost potentiometer as a variable gain control instead. The power for this setup will come from two σ11’s (one per M³ board) and their voltage will be set to 36VDC. The casework for both the amp and the PSU will be completely handmade. I’m on a budget, and won’t be using fancy boutique parts (which is one of the reasons I ended up with the M³ design).

Hopefully I’ll receive my circuit boards from AMB soon, and can start working on this! Feel free to comment on the project, my part selections, or anything else for that matter! To be continued… ]]> DIY (Do-It-Yourself) Discussions Jaypee http://www.head-fi.org/forums/f6/project-m-home-studio-speaker-amp-456170/ http://www.head-fi.org/forums/f6/can-someone-reterminate-my-iems-455997/ Tue, 17 Nov 2009 13:09:10 GMT I have a set of nuforce Ne-7ms and the end is messed up. Music sounds fine but the mic and mic button seem to be suffering. Plus, I was never a fan... I have a set of nuforce Ne-7ms and the end is messed up. Music sounds fine but the mic and mic button seem to be suffering. Plus, I was never a fan of the curved plug. Can anyone here fix this or at least guide me in the direction of doing it myself? ]]> DIY (Do-It-Yourself) Discussions roker http://www.head-fi.org/forums/f6/can-someone-reterminate-my-iems-455997/ http://www.head-fi.org/forums/f6/my-diy-fullrange-speakers-455987/ Tue, 17 Nov 2009 10:58:03 GMT Here is a DIY Fostex 126E based pair of speakers I made. They sound incredibly good for what they cost to be built and for the simplicity of the... Here is a DIY Fostex 126E based pair of speakers I made.

They sound incredibly good for what they cost to be built and for the simplicity of the cabinet.

The placement of these speakers is very easy and the depth of the stereo image is incredible!!

A recommended build for anyone in need of a couple of small but hi-fi sounding bookshelf monitors.



[/QUOTE] ]]> DIY (Do-It-Yourself) Discussions marios_mar http://www.head-fi.org/forums/f6/my-diy-fullrange-speakers-455987/ http://www.head-fi.org/forums/f6/good-piece-build-zune-lod-455967/ Tue, 17 Nov 2009 06:05:46 GMT I found these at amazon. Amazon.com: DLO TransDock Micro for Microsoft Zune: Electronics... I found these at amazon. Amazon.com: DLO TransDock Micro for Microsoft Zune: Electronics

I have been reading up a bit on making a LOD for my zune120 and most of the mods around involve hacking up an fm transmitter from the zune car pack. I think the price is right for this one.

I just figured there might be a few other folks here that might be interested in making an LOD also and the price of that transmitter might make it worth it. I also have no idea how long they'll be selling it for 95% off. :) ]]> DIY (Do-It-Yourself) Discussions crapback http://www.head-fi.org/forums/f6/good-piece-build-zune-lod-455967/