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Goldwood GM-85/8 Heavy Duty 5-1/4" Sealed Back Midrange 8 Ohm
This driver is rated at 92db sensitivity on another site. I looked at the response chart and it looks like it peaks at 96db just above crossover but then behaves more like a 92db driver. Is this correct?
Based on the graph I would say 92 is a more accurate number.
Date published: 2014-04-07
What volume should a sealed enclosure be for this driver?
This midrange has a sealed back...which means the turbulence inside the speaker cabinet has no effect on this midrange. So, cabinet volume is not an issue.
Date published: 2013-09-22
I have purchased 2 of these and they seem to be working well. My question is about actual power ratings. Online you show the power rating as 60 RMS/100 Max, and also 60 RMS/120 Max. Your catalog shows them at 40 RMS/55 Max. What is the actual rating?
I am running them in a 3 way configuration with a 800Hz crossover point. I am also using an L-pad (they have a high SPL). I have pushed them hard with my my HK 120 WPC amp....w/o any issues. If I turn up the L-pad, they are too loud and seem to distort when pushed near 100w.
Date published: 2013-07-19
This speaker shows a 15 db peak as it enters it's range, about 500 to 1200hz. Will a crossover smooth those bumps ? I did test it, it does sound very much better than my two way speakers in the mid band but seemed to ssssst on cymbal crashes. So I hope an 800 to 5000 hz 12db band pass will keep that mid sound, then pass it on to a soft dome at 5000 hz with a 12db high pass.Piano and Sade sound GREAT on this one. But if I can do better then I can go as much as $20 each for a better midrange.Main question, do crossovers smooth out the curves shown on their graphs ? And is it worth the trouble to use an open back mid and tuned box ?I have two Realistic Mach 10 boxes , 1.8 cf, and made an adapter plate to put a midrange where the 8 inch driver was, then put a 10" driver where the 10" passive radiator was. The OLD paper cone tweeters that are in it are so muddy I could puke, I'm gonna have to put those soft dome tweeters in there.
The bump is due to the sealed back on the driver. A crossover will help this to an extent but likely not completely flatten it out. The sizzle you are getting in the upper range would be helped however.
Date published: 2013-07-05
what is the polarity of the Speaker? or wich terminal is + and wich one is -
As pictured with the speaker facing up and the terminals facing toward you the left terminal is positive and the right is negative.
Date published: 2013-05-20
What are the TS Parameters?
I've order the DA DC28FT and DC250 along with the Goldwood 5" to rebuild a 27 year old pair of Boston Acoustic A150's. Recommended XO Frequencies?
For this combination I would go with crossover frequencies of 625 and 5000 hz like the crossover in the link belowhttp://www.parts-express.com/pe/showdetl.cfm?partnumber=260-154
Date published: 2012-12-03