Lowering the crossover point.

[aditya]

Not an error....well apparently it's an error but not in the drawing. I meant to ask somebody about whether the cap should be before or after the attenuator. Thanks for the heads up.

Hi....thanks for the nice words.

I will suggest you to try out the xover again with the proper connections, but I suggest to use a 10mfd in place of 6.3mfd for the HF. The 1.5 mH coil can remain the same.
Pls try it out and see the outcome.

[zelgall]

Also, I've read that the horn on a 604 doesn't provide loading below 1600Hz. That could be an issue for longevity of the diaphragm / voice coil.

[aditya]

I like Hiraga's ideas about the 604.

The 604 was designed keeping studio-monitoring (point source) in view. Any attempt to highlight the lows specifically will create imbalances. Also it can sound boxy pretty easily. So any enclosure careful of this will perform well. OB is definitely a good choice here. Or a BR with an almost IB-ish approach will also do well.

[bowtie427ss]

Your welcome buddy, I think I made Bowtie cringe a while back when I told him I'm running 30 ft runs of menards speaker wire to them.
I will try it your way and report back.

I filed a report with the Speaker Wire Police.

If your speaker wire runs don't add enough impedance to impart a negative impact, and can deliver the voltage and current your speakers need to satisfy you, then it passes my litmus test, even if it's household romex or the coily cord from your landline.

[donaldpatten]

I got some clear zip speaker wire, at Menards , that only had half the number of strands. So my # 16 awg was in fact # 19.
It was under the Phillips brand.

Don

[aditya]

Yep putting the caps before the attenuator has made a difference. They sound better and stay sounding better. Before it seemed like they sounded good for a little bit but then fell off like the resistor/attenuator was heating up and building resistance. The 2.5 inductors will be here tomorrow and I'm hoping they'll quell the boxy cabinet sound more. I'm basing that on the fact that when I had no inductor on them the boxyness was worse than it is now with the 1.5 inductors.

Good to hear that. Did you check with the 1.5mH+10mfd combo or the earlier 1.5+6.3 combo ?
Yes, about the attenuator, I think it must have got fried already. Better to get it replaced, at least for dependability sake.
Talking about the xover, you can not (should not) put a cap higher than 10 mfd on the HF side. Yes, you can play with the inductor value.

Another good thing will be to procure a db meter, (the standard 30-8KHz type if not more), and take a real mesurement. B'coz, even with a pair of trained ears, it still gets at times very tricky to tame down things in audio. At least one will know for sure where what is, and then adjust accordingly.

[aditya]

Your welcome buddy, I think I made Bowtie cringe a while back when I told him I'm running 30 ft runs of menards speaker wire to them.
I will try it your way and report back.

I think the 604s deserve good cables atleast. About the choice part, Bowtie has said it all.