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Search: Posts Made By: David Analog
Forum: Audio/Stereo 07-25-2014, 11:07 AM
Replies: 11
Views: 410
Posted By David Analog
In that case it's a good option if the kick panel...

In that case it's a good option if the kick panel is front to rear sealed around it's perimeter, and especially over the top.
Forum: Audio/Stereo 07-25-2014, 09:38 AM
Replies: 11
Views: 410
Posted By David Analog
Running a minimally damped air suspension type...

Running a minimally damped air suspension type woofer without an enclosure is like taking the shock absorbers off your car and running with just the coil springs. Lots of uncontrolled and exaggerated...
Forum: Audio/Stereo 07-24-2014, 04:06 PM
Replies: 11
Views: 410
Posted By David Analog
That is exactly why I gave you the exterior size...

That is exactly why I gave you the exterior size as it pertains to the boat so you could help yourself to a measurement.
Keep in mind that you have some latitude in the shape of the enclosure as long...
Forum: Audio/Stereo 07-24-2014, 08:30 AM
Replies: 11
Views: 410
Posted By David Analog
Yes, the XS12 works great in a ported box. For...

Yes, the XS12 works great in a ported box. For ideal results you need about 2.75 cu.ft. of external displacement for the enclosure.
Yes, the Syn4 will drive two pair of coaxials and a 4-ohm 12-inch...
Forum: Audio/Stereo 07-20-2014, 09:50 AM
Replies: 4
Views: 216
Posted By David Analog
More line voltage would help a 2 volt head piece...

More line voltage would help a 2 volt head piece even if the output was not split.

You might kill two birds with one stone by adding an EQ or variable control line driver that provides more voltage...
Forum: Audio/Stereo 07-18-2014, 12:28 PM
Replies: 14
Views: 400
Posted By David Analog
I don't think anyone indicated that a 4-inch hole...

I don't think anyone indicated that a 4-inch hole will hurt in any way or form, but being so small it just won't be enough to make a perceivable difference.
Ideally, if you have to vent a...
Forum: Audio/Stereo 07-17-2014, 09:47 PM
Replies: 14
Views: 400
Posted By David Analog
I understood exactly what you wanted to do. Just...

I understood exactly what you wanted to do. Just make sure the vent is not a tube in any way or form. It should be flat like a grill. Any depth will greatly impede flow. Plus, the vent needs to be as...
Forum: Audio/Stereo 07-17-2014, 05:24 PM
Replies: 14
Views: 400
Posted By David Analog
Jim, We may be speaking of the same thing but...

Jim,
We may be speaking of the same thing but using different language.
Let's say we have a loaded woofer enclosure within a large boat compartment, whether the port or starboard helm console or...
Forum: Audio/Stereo 07-17-2014, 03:05 PM
Replies: 14
Views: 400
Posted By David Analog
"" Jim, I completely agree with this regarding...

""

Jim,
I completely agree with this regarding the compartment vent. My reasoning might be different though. Could you explain why.
Forum: Audio/Stereo 07-17-2014, 02:00 PM
Replies: 14
Views: 400
Posted By David Analog
Correct. Two completely different principles. A...

Correct. Two completely different principles.
A bass-reflex enclosure functions based on the resistance of the small diameter and long port creating a tuned resonator.
A vented compartment should...
Forum: Audio/Stereo 07-17-2014, 09:25 AM
Replies: 14
Views: 400
Posted By David Analog
Just to add some clarity, A shallow vent like a...

Just to add some clarity,
A shallow vent like a grill is good but there should be no depth to the port.
Forum: Audio/Stereo 07-16-2014, 09:06 AM
Replies: 10
Views: 274
Posted By David Analog
All the most perceivable bass output is between...

All the most perceivable bass output is between 50 and 80 Hz. It doesn't appear that you were getting much of that range from your amp and subs. That would work both products into the ground. Also,...
Forum: Audio/Stereo 07-15-2014, 05:28 PM
Replies: 10
Views: 274
Posted By David Analog
It doesn't matter. Once you type it you can't...

It doesn't matter. Once you type it you can't take it back. Forum rules.
Forum: Audio/Stereo 07-15-2014, 03:36 PM
Replies: 10
Views: 274
Posted By David Analog
You can't bridge a monoblock amplifier. We're...

You can't bridge a monoblock amplifier.
We're only speculating that heat may be the problem so sure, you can add a fan. A floating fan mostly circulates air around the perimeter of the fan which...
Forum: Audio/Stereo 07-15-2014, 09:33 AM
Replies: 10
Views: 274
Posted By David Analog
A replacement to drive two IB 10-inch subs would...

A replacement to drive two IB 10-inch subs would be the JL Audio XD600/1.
Yes, you can get it repaired at a flat rate from a JL Audio authorized repair facility. It's usually reasonable.
That's an...
Forum: Audio/Stereo 07-13-2014, 07:18 PM
Replies: 2
Views: 134
Posted By David Analog
A good replacement in a smaller, more efficient,...

A good replacement in a smaller, more efficient, but similar in power amplifier would be the JL Audio XD400/4.
The JL Audio 4300 is an excellent amplifier. It will actually deliver 500 watts. The...
Forum: Audio/Stereo 07-11-2014, 12:39 PM
Replies: 9
Views: 339
Posted By David Analog
The Pro80s and MB8s have the same size midbass...

The Pro80s and MB8s have the same size midbass driver and same size of pod so I would use the identical highpass crossover frequency. Also, every filter has a phase rotation so ideally I would want...
Forum: General Discussion 07-11-2014, 09:33 AM
Replies: 48
Views: 2,542
Posted By David Analog
That's why I have pretty much resigned myself to...

That's why I have pretty much resigned myself to shuffleboard. There is very little threat of injury and if fisticuffs do break out I can whip just about everyone over 80.
Forum: Audio/Stereo 07-10-2014, 04:05 PM
Replies: 5
Views: 231
Posted By David Analog
Dividing power between more channels and more...

Dividing power between more channels and more amplifiers does not necessarily mean any more current draw. More power means more current draw.
Okay, I wouldn't invest too heavily in power for the bow...
Forum: Audio/Stereo 07-10-2014, 03:44 PM
Replies: 16
Views: 873
Posted By David Analog
It would make zero difference in maximum volume...

It would make zero difference in maximum volume because you have gain controls to offset any difference.
Using higher gain takes the impetus off the subsequent gain stage and improves the noise...
Forum: Audio/Stereo 07-10-2014, 02:47 PM
Replies: 5
Views: 231
Posted By David Analog
You've got multiple options with and without...

You've got multiple options with and without using what you already own.
Two channels of the unregulated M6600 bridged are about equivalent to a single channel of the regulated MHD600/4. So the M6600...
Forum: Audio/Stereo 07-10-2014, 01:15 PM
Replies: 16
Views: 873
Posted By David Analog
A subwoofer is about the first place I hear a...

A subwoofer is about the first place I hear a difference in more line voltage. There are no larger voltage swings than those on the sub frequencies. So I would say it's just as important.
The...
Forum: Audio/Stereo 07-10-2014, 11:24 AM
Replies: 5
Views: 231
Posted By David Analog
The HD600/4 would be perfect for two pair of...

The HD600/4 would be perfect for two pair of in-boat 770s. That would be hard to improve upon.
Your M2250 bridged will be an upgrade from two channels of the M6600.
If you only have one pair of...
Forum: General Discussion 07-09-2014, 08:47 PM
Replies: 48
Views: 2,542
Posted By David Analog
When overmatched play dead.

When overmatched play dead.
Forum: General Discussion 07-09-2014, 06:25 PM
Replies: 48
Views: 2,542
Posted By David Analog
Oh, and let's not forget. Never, ever size up an...

Oh, and let's not forget. Never, ever size up an opponent after you have been seriously drinking.
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