Just a couple suggestions: re the M2 -- might have to try another one. They don't all make noise -- I have several, none of which makes any noise. You could try covering the charger stand with something like a big woolen cap? Though you might be risking overheating -- but higher pitched noise is usu...

Re fireseal: depends on what you want it to do. It will provide virtually no absorption below ~500hz because it's not thick enough, and probably too light. The pattern contouring helps higher up in frequency by providing greater surface area.

If you wait long enough, most foam ends up falling apart. Literally, into fine particles. When's it's in that end-of-life state, touch it and it can smear greasily on your fingers. It is a petrochemical product, and it seems to fall back into its original state... You see that in foam roll surrounds...

Just posting to confirm that an Akasa Apache Black 120mm works great in my N40L. The pin out mod is very easy, thanks to everyone for the info..... It's great to be able to put together a capable 4 bay NAS at truly minimal expense so the review and follow up info in this thread has been really usef...

I already said this about your original post, and it's still cool. Too bad those images are lost, as they are usually essential for full understanding of posts. You'll be better off to upload the images to SPCR's server; I think there's room enough still for a while. That way, the images will last a...

It was reviewed here a decade+ ago. Try searching. Documentation will be sparse; they were custom propretary builds. Study the components, work carefully & you coul replace the mobo, probably without chipset cooling. Might need different length heatpipes and come up with a new CPU heatblock. Oh, the...

Hey Xen, you're always welcome to chat here! :wink: Interesting observations & experience. I don't do much posting except in niche topic forums which continue to have a more open atmosphere & practice, so can't really confirm all you say -- but I don't doubt it. The Internet has moved so far from wh...

Mike, did you move to Bowen Island? Salt Spring Island. And of course, now that we're in the country surrounded by umpteen trees & hills, the whole coast is being hit with the stormiest coldest winter in years, maybe decades. Half dozen powerouts so far, burned through at least a cord of firewood a...

Techboy wrote:I've just checked and it's definitely the 12V version.

Not sure what to tell you. Perhaps that fan just doesn't play well with the Microserver PWM system.

I have installed a new fan: Noctua NF-F12 PPC 2000 IP67 Noctua NF-F12 IndustrialPPC 2000RPM IP67 PWM 120mm High Performance Fan http://noctua.at/en/nf-f12-industrialppc-2000-ip67-pwm but as per the first fan that was tested in the article, my fan spins up as the system starts, then it stops and the...

Sorry for the late reply.

Barracuda & Ironwolf, iirc, but they all should have the same acoustics. All spin at 7200, same # of platters...

Did you move the anechoic chamber? That process might be an interesting write-up once you're all settled. Yes it will. The new test space is a fully underground 600'+ concrete basement -- floor & walls are concrete. Ceiling is the underside of the floor above, a portion of which is being insulated ...

Gunbuster wrote:Mike, do you know what the smallest size is that uses that technology?

No but surely the Seagate site will tell you all about it.

Seagate's 8tb 7200rpm drive samples in my lab are amazingly quiet. 2 thumbs up. Sorry the review isn't up still -- major house move this summer.

RIchardF -- you sound like a fairly extreme HSP. If you haven't encountered this term before... http://hsperson.com/ I am borderline HSP; used to be more, but better habits & self-management have been enough to let me live "normally". I have mild tinnitus, the ringing/squealing kind, which comes mai...

I might make the wood panels L-shape for a "normal" desktop PC, and put the PSU on the same side as the motherboard. This would reduce the footprint further, tho it would get a bit taller. That's assuming the extra ports & fan controller aren't needed.

http://www.silentpcreview.com/Small_Foo ... ent_Lab_PC

It's a simple but possibly unique twist in the small silent PC quest.

FYI, a sneak preview: Measured at 1m distance, neither of the 2 Seagate 10TB samples on hand (Barracuda & Ironwolf) raised the ambient level of the anechoic chamber by more than 1 dBA. They increased overall level to around 12 dBA, from the usual 11 dBA. Remember, these are 7200rpm drives!!!

More price reductions, and a whole lot of mostly new high end PSUs added at super prices.

Well, if it worked for you, great!

That eggshell foam you linked will do virtually nothing at all. It's way too thin & too light (not dense) to have any effect below say... 1-2 kHz. And even above, I'd be surprised if maximum SPL reduction was more than a couple dB. It could have a mild reduction in higher frequency echoes if lined e...

Just so people understand -- the function of the bitumen sheet lining is to reduce the tendency of the case panels to vibrate. It is panel damping. It does nothing for the airborne noise. So if you float mount HDDs and soft mount fans and generally use quiet components, there's really no audible dif...

Seagate announced their new roster of 10TB drives today. An impressive lineup. They also revived the Barracuda name, and added two more: Ironwolf for NAS and Skyhawk for surveillance. Not bad choices , relevant to their intended functions.

Neil's explanation is good... But funny thing is, we've seen fans that follow this concept & sound good, but others that don't and still sound good. Ditto the converse. This is because strut/blade geometry is only one aspect of overall noise.

Noctua's new fans coming -- http://www.silentpcreview.com/Noctua_Ne ... mputex2016

For me, the simplified version, is: RME HDSPe MADI FX via AES to a Dangerous Source, to a Tannoy TS10 sub into a pair of Dynaudio BM5a MK2 As for headphones, I have a pair of Audio Technica M50x - I've gone through lots of headphones and these are one of my absolute favorites. That's all studio-typ...

Price drop to $350.

Price drop to US$400.

Same place I found it years ago, iirc. Ebay -- http://m.ebay.ca/itm/Sound-Level-Noise- ... nav=SEARCH

Not a great choice, mainly because any mic used for testing must be calibrated. This means matching its sensitivity to a known reference signal source, namely a mic calibrator. Such calibrators are almost all designed to fit over the head of a 1" diameter mic head. The one used here in SPCR lab is v...