Search found 19 matches

by glyphin
Sun Jan 10, 2016 12:21 am
Forum: Audio Crafts
Topic: Loudness etc: Tempest in a Teapot
Replies: 22
Views: 19054

Re: Linkwitz Orion speaker project

Yes, clearly you have your own interpretation of what is audio high fidelity and you're unwilling to entertain different conceptions of what could be high fidelity. You're so busy trying to denounce me as wrong that you did not read my last post about achievable SPL with a given amount of amplifier ...
by glyphin
Sat Jan 09, 2016 5:50 pm
Forum: Audio Crafts
Topic: Loudness etc: Tempest in a Teapot
Replies: 22
Views: 19054

Re: Linkwitz Orion speaker project

Sounds like Mike needs speakers that can rock out. Nothing wrong with that - lots of people like to rock out. But to say that all music sounds unnatural unless it's played at live levels is pushing a rather absolutist definition of 'natural' on everyone. Essentially, Mike is claiming his subjective ...
by glyphin
Fri Jan 08, 2016 9:59 am
Forum: Audio Crafts
Topic: Loudness etc: Tempest in a Teapot
Replies: 22
Views: 19054

Re: Linkwitz Orion speaker project

Here's a good article with a chart: http://www.gcaudio.com/resources/howtos/voltageloudness.html 10 dB change is only a perceived doubling in volume - such is the logarithmic nature of dB. So an amp with 10x the power only lets you get twice as loud. And 3 dB is the generally accepted 'just noticeab...
by glyphin
Thu Jan 07, 2016 11:05 pm
Forum: Audio Crafts
Topic: Loudness etc: Tempest in a Teapot
Replies: 22
Views: 19054

Re: Linkwitz Orion speaker project

At all levels, clarity is pretty amazing, w/ great detail, but music recorded loud definitely doesn't sound natural when played softly. Aside from my contention that lower level music listening benefits more from class A amplification and is where time/phase coherent speakers can shine, one of the ...
by glyphin
Thu Jan 07, 2016 10:52 pm
Forum: Audio Crafts
Topic: Loudness etc: Tempest in a Teapot
Replies: 22
Views: 19054

Re: Linkwitz Orion speaker project

It would be interesting to try a class A amp on these speakers, but w/ 8 ch (or 6 min), it's no easy thing to do. The fact of multi-band electronic xover spkr systems is that the load on each amp is way easier than any passive xover system with a single amp/ch per side. My amps only deal with 20~10...
by glyphin
Wed Jan 06, 2016 6:07 pm
Forum: Audio Crafts
Topic: Loudness etc: Tempest in a Teapot
Replies: 22
Views: 19054

Re: Linkwitz Orion speaker project

Such strong convictions, Mike! I understand you like music at live levels and prefer to listen to it at live levels. All I'm suggesting is your preferences might be affected to some extent by the equipment. I play multiple classical musical instruments. My daily amps are in fact NC400 monoblocks. An...
by glyphin
Wed Jan 06, 2016 11:46 am
Forum: Audio Crafts
Topic: Loudness etc: Tempest in a Teapot
Replies: 22
Views: 19054

Re: Linkwitz Orion speaker project

If you like headphone sound then that supports my contention. Most headphones are essentially near-field single driver speakers. It's also much more feasible to get a high quality class A headphone amp than a speaker amp. Indeed, headphone frequency response is terrible - but the merits of a time/ph...
by glyphin
Tue Jan 05, 2016 4:51 pm
Forum: Audio Crafts
Topic: Loudness etc: Tempest in a Teapot
Replies: 22
Views: 19054

Loudness etc: Tempest in a Teapot

Sweet build Mike. About how your system sounds at low volumes - this is the tradeoff that happens with Class AB or D amps - distortion for these amp topologies is mostly constant across power output, which allows low distortion % at high power, at the cost of higher distortion % at low power. To do ...
by glyphin
Tue Sep 01, 2009 11:01 pm
Forum: General Gallery
Topic: Not just "silent" - zero moving parts rig [pics]
Replies: 40
Views: 20991

One more benefit to a zero moving parts PC is there's no guilt about firing up the PC to dash off an email that you forgot about right before bed. No concerns about mechanical wear and tear on startup/shutdown. Maybe there could be heat cycling issues, and maybe the SSD flash may wear out eventually...
by glyphin
Tue Sep 01, 2009 10:57 pm
Forum: General Gallery
Topic: Not just "silent" - zero moving parts rig [pics]
Replies: 40
Views: 20991

Re: Not just "silent" - zero moving parts rig [pic

Sorry, the photo host tries to protect original sized images by default. Fixed now. I'll repost here:

Image
shutupfan wrote:
We can't see that picture: "Content protected by owner".
[/img]
by glyphin
Sun Aug 30, 2009 11:16 pm
Forum: General Gallery
Topic: Not just "silent" - zero moving parts rig [pics]
Replies: 40
Views: 20991

Re: Not just "silent" - zero moving parts rig [pic

You can see the wire tie in both pics - it's the white thing at the top. I simply strung it around one of the heatpipes, then twisted it around the fan grate above to provide some tension. Before the wire tie, the Orochi had about a half centimeter of vertical give. After tensioning it upwards, the ...
by glyphin
Sun Aug 30, 2009 11:14 pm
Forum: General Gallery
Topic: Not just "silent" - zero moving parts rig [pics]
Replies: 40
Views: 20991

Re: Not just "silent" - zero moving parts rig [pic

Image
new2spcr wrote:What about mobo temps? Like Northbridge, southbridge etc?
by glyphin
Fri Jul 31, 2009 11:05 am
Forum: General Gallery
Topic: Not just "silent" - zero moving parts rig [pics]
Replies: 40
Views: 20991

Good question Scott. It did take a significant amount of wrestling. The way that finally worked was to attach the heatsink first to the motherboard, then use a screwdriver extension to get the screws in. I actually just taped a screwdriver bit onto the end of my screwdriver, but actual "wobbly" exte...
by glyphin
Tue Jul 28, 2009 9:24 pm
Forum: General Gallery
Topic: Not just "silent" - zero moving parts rig [pics]
Replies: 40
Views: 20991

Okay you sticklers - one full hour of 100% CPU load peaked at 60/66 deg C. Immediately after the load finishes temps are 5 degrees cooler. One minute later temps are 10 degrees cooler. Thanks Broadleaf - two instances of CPU Burn-in did the trick for 100% CPU load. Temps were monitored using CPUID. ...
by glyphin
Mon Jul 27, 2009 8:15 pm
Forum: General Gallery
Topic: Not just "silent" - zero moving parts rig [pics]
Replies: 40
Views: 20991

Update - at 50% load it actually gets to 52/57 deg C (core 0/core 1) after about 10 minutes. Temps rise very slowly - about 1 deg C per minute. It was only 50% load because the CPU burn-in app appears to be single threaded. Good enough, methinks. It idles at 38/45 deg C. There's no coil whine I can ...
by glyphin
Fri Jul 24, 2009 11:03 pm
Forum: General Gallery
Topic: Not just "silent" - zero moving parts rig [pics]
Replies: 40
Views: 20991

Cool, glad to hear 50 deg C is not unreasonable. I'll do some more rigorous stress testing and update my temp readings. I've just been logging into the BIOS to check the CPU temp there. The PSU remains surprisingly cool. Most of the heat emanating from the case seems to be coming from the CPU. I mig...
by glyphin
Fri Jul 24, 2009 4:24 pm
Forum: General Gallery
Topic: Not just "silent" - zero moving parts rig [pics]
Replies: 40
Views: 20991

Not just "silent" - zero moving parts rig [pics]

Some people write "silent" when they actually mean "quiet". Now, this rig is silent. Dead silent. Zero moving parts. No fans, no spinning hard drive. It's actually kind of spooky at first. CPU: AMD 5050e dual core 45W Heatsink: Scythe Orochi Motherboard: Asus 780G micro-ATX Case: Antec 300 Power Sup...
by glyphin
Mon Sep 06, 2004 11:26 am
Forum: Cases and Damping
Topic: One-fan computer, quiet, clean, cheap, few mods.
Replies: 22
Views: 13922

cheap??

Umm, a $160 power supply is not what I'd call cheap...
by glyphin
Thu Mar 06, 2003 1:46 pm
Forum: CPUs and Motherboards
Topic: Undervoltable Motherboards: ADD to the list!!
Replies: 313
Views: 340573

undervoltable m/bs with chipset

Mike asked me to help him out with the chipsets of these m/bs, so I did and emailed him my research, but he hasn't replied or done anything about it! Well, here's the list with chipsets: http://www.ocf.berkeley.edu/~ashon/computing/undervolt.htm I can't figure out how to insert html so you'll have t...