DIY - JBL 4345 Clones - Measurements?

[dkalsi]

Hi All,

Below are three measurements (1/12 smoothing on all):
1) Measurements at 2M - Mic Centered between UHF, HF, MB - all adjustments at 0 (crossover and l-pads)
2) Measurements at 2M - Mic Centered between UHF, HF, MB - with my adjustments (Active Crossover: +2db low-pass, +1db damping, L-Pads: -1.5db HF, +1.5db UHF) - basically brought the top end down a little
3) Measurements of the 2245H from 2M away (in Red -where above two measurements were taken) and 1" away from dust cap (in Green).

Any thoughts?
As mentioned before - to me, everything sounds wonderful - which is obviously the most important part.

But - just to get others input - I wanted to know whether the above response seems reasonable?

[Mannermusic]

Hi D,

I'd say you're lookin' good! You can tweak the UHF up if you want that to be "flat" but, I've found flat ain't necessarily what sounds best in the listening room. My guess is that "green" is what sounds best? I've found if I set my rig up "flat" it sounds a bit thin and hard. You also have a room induced bass bulge (similar to my rig) at the bottom end that probably sounds good (built-in Fletcher-Munson compensation). Nice work! Mike

[4313B]

Did your mic come with a calibration file? It looks a bit weak on the top end.

[Robh3606]

As mentioned before - to me, everything sounds wonderful - which is obviously the most important part.

Well in that case you are done. Sit back and enjoy them. The measurements look fine.

Rob

[hjames]

Hi All,

Any thoughts?
As mentioned before - to me, everything sounds wonderful - which is obviously the most important part.

I was by Dhar's place once and had a chance to hear them -= they sounded superb to me!

But I do understand having the numbers hit nice places is comforting too.

[dkalsi]

I've found if I set my rig up "flat" it sounds a bit thin and hard.

My experience has been the same - I actually prefer the softer sound.

Did your mic come with a calibration file? It looks a bit weak on the top end.

No it did not - I'm unfortunately using the generic calibration file available from ECM8000 at the Home Theater Shack forums.

Well in that case you are done. Sit back and enjoy them. The measurements look fine.

Didn't get a chance to turn them up (to at least my normal listening levels) after I made the minor adjustments as it was getting late - but I hope to do some listening this evening.

Thanks,
Dhar

[Ian Mackenzie]

http://www.audioheritage.org/vbullet...l=1#post259236

This is a 4344mk11 network with a 2123 driver mounted in a 4345 box