Improving a pair of 4301B

[soundboy]

Hello Soundboy,

Since you have these, perhaps you could comment on whether you feel they could do with any more bracing as that might be a modification that "Tweeter" could also easily do. How do they withstand the usual knuckle tap test? Of course being a smaller cabinet makes them better in terms of stiffness anyway, but you never know.

Best
JA

I wouldn't do anything other than crossover parts upgrade, because:

1. They sound great the way they are after cap upgrade.
2. Adding structure to the inside would be a pain, and change box volume and tuning. You are then messing with a great part of this system for it's size....the bass.
3.They don't need it. My pair is solid, without any major resonances, and lot's of fibreglass lining.

[Zilch]

Your point?

Tweeter asked which of three capacitor alternatives would be recommended, and got votes for all three.

Actually, "Search" will reveal more comprehensive crossover upgrades for due consideration, I beleive....

[soundboy]

Ok.

[tweeter]

Well, I understand more or less.
I suppose I´ll use polypropilene Aircaps, Ok?

Finally, I found RAL5007 color at last!, what a lucky!
so, my last question about Blue color is the correct finishing,
Brilliant, Glossy or Matt?. That´s all.

Thanks in advance.

[soundboy]

All of the 43XX JBL's I have had are more of a satin finish blue....although I have only had two......the 4315, 4301B.

[tweeter]

Has anyone upgraded the internal wiring and modified crossover network to biwiring.
Will get any improvement?

Regards.

[soundboy]

Has anyone upgraded the internal wiring and modified crossover network to biwiring.
Will get any improvement?

Regards.

Upgrading the internal wiring may make them sound different...but not a huge improvement like better, more modern capacitors. Frankly, I am as big a tweek as there is, and I think it a waste of energy and time, considering the small wattage they will be see, and relatively short wire runs. It seems, with the huge amount of money JBL put in to the bigger monitors (state of the art caps, metal network housings,foilcals on the baffles, and on every driver, etc) if it made any difference, they would have used bigger internal wire.
As for bi wiring, it may help if you are also bi amping...in a three way system, with the woofer seperate from the midrange...in a two way, crossed at 2500 hertz, it seems another waste of time.