Any one tested these speakers

mcmahon48 · 10th June 2010, 07:27 PM

http://cgi.ebay.com/2-GMI-PRO-6-1-2-...item2303cbc2c5

Specs look good but only a RTA test will tell if they have any usefullness

tinitus · 11th June 2010, 12:20 AM

Why do the write die cast alu chassis when its clearly pressed steel, from the picture

gooki · 03:57 AM

I wouldn't touch them, specs seem fake, and GMI Sounds product range doesn't inspire confidence.

Patrick Bateman · 11th June 2010, 05:02 AM

Quote:

Originally Posted by mcmahon48

(2) GMI PRO 6 1/2" CLOTH EDGE BULLET MIDRANGE WOOFER - eBay (item 150387540677 end time Jul-07-10 09:53:46 PDT)

Specs look good but only a RTA test will tell if they have any usefullness

For that kind of money, you could get a midrange with shorting rings and a cast frame from B&C.

If it was $10 I'd take a bet on it, but for $86, no thanks.

GM · 11th June 2010, 01:24 PM

My limited experience with them is that they're pretty good, but that was decades ago and things change, so contact them to see if they will send you some real tech data: GMI Sound : Contact Us

GM

prickears · 11th June 2010, 01:54 PM

Does the cheap cap come free?

Pressed frame, can't flush mount, OTT (sus) specs, US$86. Just a hunch, but I reckon you could do better.

Maybe Good, (doubts), but if not, alot of dough for a paper weight and a cheap cap.

chris661 · 11th June 2010, 04:05 PM

Definitely exagerrated specs. 99dB@1w, then down to 66Hz? Not going to happen with a driver that small. Eminence does a 6" driver with similar sensitivity, but it won't go past 100Hz.

GM · 11th June 2010, 04:40 PM

No way to know without specs, though it does imply a very strong motor and/or the strong break-up modes of drivers designed to mate to compression horns, which considering the source seems probable, making its sensitivity closer to ~93 dB/m.

Regardless, raw driver efficiency, sensitivity specs do not imply that it will be this over it's entire BW, only in it mass controlled (~flat) BW between its HF mass corner and break-up modes BW if the manufacturer/seller is being truly honest.

GM

10th June 2010, 07:27 PM	#1
mcmahon48 diyAudio Member Join Date: Aug 2008	Any one tested these speakers http://cgi.ebay.com/2-GMI-PRO-6-1-2-...item2303cbc2c5 Specs look good but only a RTA test will tell if they have any usefullness

11th June 2010, 03:54 AM	#3
gooki diyAudio Member Join Date: Dec 2008	I wouldn't touch them, specs seem fake, and GMI Sounds product range doesn't inspire confidence. Last edited by gooki; 11th June 2010 at 03:57 AM.

11th June 2010, 01:24 PM	#5
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	My limited experience with them is that they're pretty good, but that was decades ago and things change, so contact them to see if they will send you some real tech data: GMI Sound : Contact Us GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

11th June 2010, 01:54 PM	#6
prickears diyAudio Member Join Date: Jun 2009 Location: Hamilton, victoria	Does the cheap cap come free? Pressed frame, can't flush mount, OTT (sus) specs, US$86. Just a hunch, but I reckon you could do better. Maybe Good, (doubts), but if not, alot of dough for a paper weight and a cheap cap. __________________ Making stuff 'idiot proof', Just breeds more effective idiots.

11th June 2010, 04:05 PM	#7
chris661 diyAudio Member Join Date: Feb 2008 Location: Lancashire Blog Entries: 7	Definitely exagerrated specs. 99dB@1w, then down to 66Hz? Not going to happen with a driver that small. Eminence does a 6" driver with similar sensitivity, but it won't go past 100Hz. __________________ "Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo My setup: http://www.diyaudio.com/forums/multi...tang-band.html


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

11th June 2010, 12:20 AM	#2
tinitus diyAudio Moderator Join Date: Nov 2005	Why do the write die cast alu chassis when its clearly pressed steel, from the picture

11th June 2010, 04:40 PM	#8
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	No way to know without specs, though it does imply a very strong motor and/or the strong break-up modes of drivers designed to mate to compression horns, which considering the source seems probable, making its sensitivity closer to ~93 dB/m. Regardless, raw driver efficiency, sensitivity specs do not imply that it will be this over it's entire BW, only in it mass controlled (~flat) BW between its HF mass corner and break-up modes BW if the manufacturer/seller is being truly honest. GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Just tested the new E183CC	piero7	Tubes / Valves	13	17th August 2009 05:18 PM
pictures of testing station and speakers to be tested	mcmahon48	Multi-Way	1	15th February 2009 01:13 PM
Anyone tested Firefox 3?	peranders	The Lounge	11	7th June 2008 10:22 AM
Tested my new sub and no sound	Emprov	Subwoofers	1	24th April 2006 12:51 AM
"White Van" junk speakers tested, dissected:	GrahamnDodder	Multi-Way	7	19th March 2004 02:43 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read