Infinity Primus 360

[bandphan]

Alex, are you making false allegations on the internet again? Shame on you Other than internal mods of the cab, i think your gonna be as good as you can get with them(imo they are pretty darn good for money).

 

[bandphan]

I, so I know with 100% certainty that they have exceptionally detailed highs,

would that be considered bright?

 

[Joe Schmoe]

would that be considered bright?

No. Bright and detailed are not the same thing, though some newbies do confuse them. I like Primus, and I have no tolerance for bright speakers (eg Klipsch.)

 

[Matt34]

Where did this alleged "understanding" come from? It is simply false. The Primuses have extremely detailed highs and wide dispersion (leading to excellent imaging.)

I think as far as the entire speaker is concern the off-axis FR of the tweeter is the weakest link (well, behind the cabinet construction obviously). Alex started this thread for the reason to do some modifications to improve upon a already good loudspeaker. No one is saying this speaker sucks, far from it, just looking at ways to make a good speaker better.

 

[Alex2507]

It came from the only place that matters: direct experience. I own a pair of 250s, so I know with 100% certainty that they have exceptionally detailed highs, excellent soundstage/imaging, and a very wide sweet spot.

What has been your direct experience with the 360? If it's okay with you, we'll just talk about them. Let's save the 250's for another time. Are any of the points made in post #7 of any relevance?

 

[Alex2507]

(imo they are pretty darn good for money).

IMO they are pretty darn good but when it comes to the 'for the money' they suddenly become transcendental.

No one is saying this speaker sucks, far from it, just looking at ways to make a good speaker better.

WmAx's posts were my first clue regarding potential of the 360's. The only reason the modifications were limited to what has been described in this thread is because it was something that I could do at home over the weekend. When the time comes for me to go whole hog on a pair of these, I'll need to be in a proper shop not a condo.

 

[chest_burster]

Not to be contrarian, but aren't you taking huge risks by changing the internal cabinet structure of these speakers? For every "problem" with their sound one can fix, other exaggerations and suppressions are introduced. They've already been engineered well as can be seen by their excellent measured response and highly listenable character.

FWIW, the biggest improvement I received from my Primus 362s was unloading amplification chores from my Harman/Kardon AVR 247 onto a NAD C270 amplifier - it's made these speakers sound jaw-dropping. Incredible musicality for barely over two Benjamins - hell yeah.

If you're happier with your speakers after fiddling around, though, then that's the most important thing.

 

[Alex2507]

Not to be contrarian, but aren't you taking huge risks by changing the internal cabinet structure of these speakers? For every "problem" with their sound one can fix, other exaggerations and suppressions are introduced. They've already been engineered well as can be seen by their excellent measured response and highly listenable character.

FWIW, the biggest improvement I received from my Primus 362s was unloading amplification chores from my Harman/Kardon AVR 247 onto a NAD C270 amplifier - it's made these speakers sound jaw-dropping.

Hello and welcome. You can't really call it a huge risk if they're only $200. I didn't change the internal cabinet structure ... yet. For now I just put some real sound dampening material in them and stopped the magnetic shields from rattling. I and more importantly others agree that the engineering on these is very good. The parts are very good. It's the cabinet that suffers from mass production and the installation of the magnetic shields could have used more attention. I too have an amp that I'm going to play around with and it's encouraging to hear your favorable results.

I'm going to give you a link to the thread that got me wanting to do this thing. Give it a read and see what you think. As somebody on this site told me a couple of years ago 'you will be assimilated.'

http://forums.audioholics.com/forums/showthread.php?t=37168

 

[Joe Schmoe]

What has been your direct experience with the 360? If it's okay with you, we'll just talk about them. Let's save the 250's for another time. Are any of the points made in post #7 of any relevance?

This entire discussion has been about the tweeter, which is identical in the 250 and 360. Since I have a pair of 250s, I have spent many hours with that tweeter, and know that it is excellent in every way.
(I have, of course, auditioned the 360s. I chose the 250s because they are more appropriate for my room.)

 

[bandphan]

This entire discussion has been about the tweeter, which is identical in the 250 and 360.

Their crossovers are at different points, which in prespective would change their characteristics

 

[Alex2507]

This entire discussion has been about the tweeter, which is identical in the 250 and 360. Since I have a pair of 250s, I have spent many hours with that tweeter, and know that it is excellent in every way.
(I have, of course, auditioned the 360s. I chose the 250s because they are more appropriate for my room.)

Good point about the tweeter being the same. It's dispersion has been brought into question. I think the unofficial score card reads 'good'. If the off axis dB readings didn't drop off quite as much the score card would read 'very good' like the rest of the drivers in the speaker.

Now I'm not 100% on this but I think the tweeter even though it's the same, will behave differently due to having to contend with being in different system with different drivers and a different cabinet. The similarities that the 250 and 360 have are quality drivers, quality crossovers, weak cabinets, improper acoustic damping, terrific value and a good sound to begin with. I believe that both models can be modified easily enough to sound much better.

I had the 250's also. They were too big for my room so I did the oddest thing and got the 360's because circumstances allowed me to sell off what I had and bring the 360's in without a lot of money being spent. I simply decided to trade space for sound. I started off just a few years back with the Primus HTIB. Obviously I'm a Primus fan. So I'm pretty new to this and am intrigued by the numbers, measurements, science and research that relates to all of this A/V stuff. I haven't audition squat due to a lack of opportunity and a sneaking suspicion that my ears are a tad unreliable. I like the numbers and have identified a few people who I believe understand those numbers and am trying to learn a thing or two from them.

So let's kiss and make up.

Edit: I just did the RTA thing and everything is different now. I had crazy equalization to get a relatively flat response before the mod. Now the RTA tells me that my levels reflect the craziness I was doing with the EQ. So I'll be able to have the adjustments be less extreme for a corrected room response.
YEAH !!!
This might be a premature victory dance but I'm a little excited.

 

[Joe Schmoe]

So let's kiss and make up.

I have a better idea: let's skip the kissing and just make up!

 

[allargon]

So, Alex, when are you going to post some pics of your disembowed Primi? Do we get to see a how to guide?

 

[bandphan]

http://forums.audioholics.com/forums/showthread.php?t=46286

 

[Alex2507]

So, Alex, when are you going to post some pics of your disembowed Primi? Do we get to see a how to guide?

http://forums.audioholics.com/forums/showthread.php?t=46286

Thanks bandphan. Learning to post the pic's was brutal. The second effort with posting pic's for 'Speaker Platforms' was much easier as I imagine my second go at opening up the 360's will be easier. This hobby never really ends does it?

 

[jamie2112]

No it just gets worse with age You did a really nice job on the speaker re-packing.....looks great