Infinity Qa's- any good???
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thedelihaus
Nocturnal transmissions
For $30, if the tweeters are working, worth it.
This is an early EMIT tweeter, and I found them a touch sibilant but otherwise crystal clear and detailed.
The woofer is well built and beefy as all get-go, and although not a Dual voicecoil Watkins, it's still a great performer and uses quality parts in it's build.
I prefer the three way Qb, as I find the Qa experiencing a bit of midrange suck-out, but they sell I believe for typically $50, if not up to $100.
This is an early EMIT tweeter, and I found them a touch sibilant but otherwise crystal clear and detailed.
The woofer is well built and beefy as all get-go, and although not a Dual voicecoil Watkins, it's still a great performer and uses quality parts in it's build.
I prefer the three way Qb, as I find the Qa experiencing a bit of midrange suck-out, but they sell I believe for typically $50, if not up to $100.
kneeOhFight
Addicted Member
dont think twice, as he said..if the tweeters are working, jump all over it...makes me look forward to picking up the Qb's I've been promised..
as an aside..just fired up the refoamed, rejuvenated RS4000's..very nice sounding EMIT K equipped 3 ways, on tilt back stands...when played in unison with the RS4b's, wow:jawdrop:
as an aside..just fired up the refoamed, rejuvenated RS4000's..very nice sounding EMIT K equipped 3 ways, on tilt back stands...when played in unison with the RS4b's, wow:jawdrop:
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DEFINITELY worth $30. I have the even smaller Qe's (2 pairs actually), and these little guys image like mad and have suprising bass from such a small speaker. If you find later that you don't like them, you should be able to easily get your money back out of them.
I agree with Delihaus that midrange "suck-out" would probably occur as the "EMIT" tweeter would not fit well into a two way system( unless it was one of those bitchen little Infinitessimals with the Watkins woofer)......however the Qa could be converted into a Qb (if one were so inclined). However, I don't agree that the early EMITs were anything close to being simbilant in sound.
thedelihaus
Nocturnal transmissions
Don't get me wrong about the EMIT tweets- it's a fantastic tweet.
Why I found them sibilant could translate into numerous reasons- my room, the gear I ran it with at the time, possibly the particular EMITs I had were not up to spec- I dunno.
This was also an early design of EMIT. I have heard others that sounded fine, whether from being healthier or not as poorly aged or from being possibly improved in design? I dunno.
As for the midrange suck-out- it's noticeable but not glaring.
However, modifying the same sized two way Qa into the three way Qb will prove to be one sweet speaker. Build a new crossover from the Qb crossover schematic and add a NOS or original Qb mid, or get a bit of help and substitute a quality midrange as close as possible to the stocker, and perhaps mild tweaks to the crossover, and you will be golden.
Although the EMITs get all the glory, the woofers are fantastic in Their own right.
I agree the EMIT seems to get alot of the Infinity credit. I feel they are a nice high frequency driver for the Infinity designs of the day. Like I said, I don't see them in a 2-way system, but they seem to be a nice "blend of soft dome /hard dome(metal) and I feel their horizontal dispersion creates a presence that some wonderful conventional tweeters cant.
thedelihaus
Nocturnal transmissions
As for infinity woofers, the Watkins gets mucho glory, too.
But these Q series woofers are very well designed and constructed.
I think we agree it's a good product all around.
But these Q series woofers are very well designed and constructed.
I think we agree it's a good product all around.
ChairSpud
Super Member
I bought a pair of Infinity Qa's when they first came out, they sounded pretty good in their day, I auditioned both the Qa and Qb and chose the Qa because it had a warmer, fuller sound. The Emit tweeter was really something special but I thought it was sometimes a bit too revealing against a woofer that didn't quite measure up in the midrange.
I'd say the Qa are definitely worth $30, FWIW Two friends liked my Qa's so much they also bought themselves a pair.
I'd say the Qa are definitely worth $30, FWIW Two friends liked my Qa's so much they also bought themselves a pair.
mjennens
Old Guys Rule!!!
I bought 'em and got a bonus!
I went ahead and bought the speakers. They're in pretty good shape, although they're missing the badges. They sound pretty good, but I think I like my Indignias better; I'll have to give 'em some more time. As I was leaving the home of the gentleman from whom I bought them, I noticed a Nikko NA-500II amp looking kind of lonely. I asked what he wanted for the amp and he told me I could have it. Pretty cool
! I know it's nothing to write home about, but a set of Infinty Qa speakers and a Nikko amp for $30 is not bad.
I missed out on a Trek 370 bicycle in good to great shape for $25 (which I was more excited about than the speakers) by a few minutes, so that was a bummer:tears:!
I went ahead and bought the speakers. They're in pretty good shape, although they're missing the badges. They sound pretty good, but I think I like my Indignias better; I'll have to give 'em some more time. As I was leaving the home of the gentleman from whom I bought them, I noticed a Nikko NA-500II amp looking kind of lonely. I asked what he wanted for the amp and he told me I could have it. Pretty cool
! I know it's nothing to write home about, but a set of Infinty Qa speakers and a Nikko amp for $30 is not bad. I missed out on a Trek 370 bicycle in good to great shape for $25 (which I was more excited about than the speakers) by a few minutes, so that was a bummer:tears:!
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mjennens
Old Guys Rule!!!
Pioneer BOFU in place of the woofers????
Hopefully this doesn't sound crazy, but what the heck...
Any ideas on what I might get if I replaced the woofers in these with a pair of the Pioneer 8" full range speakers? It seems the midrange would have to improve.
Being that the speakers are listed as 4 ohm and the Pioneer is 8 ohm, is that an issue, especially since I'll only be using the tweeter.:scratch2:
I ran the Pioneer specs through Win ISD (I used the specs from MCM; they were more complete than what PE has). The box size looks almost perfect. (It's a sealed box.) What I don't know is how to read the graphs on WinISD. Is it something someone can, or would be willing to, explain in a paragraph or so?
Here are the specs for the Infinitys.
http://www.bobbyshred.com/images/Qa_Tech_Sheet.pdf
Thanks for any ideas or input.
Mike
Hopefully this doesn't sound crazy, but what the heck...
Any ideas on what I might get if I replaced the woofers in these with a pair of the Pioneer 8" full range speakers? It seems the midrange would have to improve.
Being that the speakers are listed as 4 ohm and the Pioneer is 8 ohm, is that an issue, especially since I'll only be using the tweeter.:scratch2:
I ran the Pioneer specs through Win ISD (I used the specs from MCM; they were more complete than what PE has). The box size looks almost perfect. (It's a sealed box.) What I don't know is how to read the graphs on WinISD. Is it something someone can, or would be willing to, explain in a paragraph or so?
Here are the specs for the Infinitys.
http://www.bobbyshred.com/images/Qa_Tech_Sheet.pdf
Thanks for any ideas or input.
Mike
ChairSpud
Super Member
Not a crazy idea but FWIW I'd be more inclined to follow thedelihaus suggestion to mod the crossover and add a Qb mid range driver. I once did exactly that with a pair of Heathkit two ways modded into their more expensive three way version and was very happy with the results.