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Old 29th April 2002, 07:45 AM   #11
jleaman is offline jleaman  Belgium
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Default Here is a perfect example

Here is a perfect example.. of what i am wanting to build..
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Old 29th April 2002, 07:48 PM   #12
jleaman is offline jleaman  Belgium
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Default Have you seen one of these..

Has any one seen onf of these subs..

Here is the link to there web page..

www.aerialacoustics.com
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Old 30th April 2002, 03:25 AM   #13
Wizard of Kelts
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Nice setup all round. Is that an Aerial Acoustics main speaker next to the subwoofer?

Assuming 1" thick building material, those dimensions yield a box of 1.9 cubic feet, so the Peerless XLS is out. Two 10" subs that come to mind are the Dayton Titanic Mk II and the Blueprint 1001. More about those later.

What kind of amp are you using for this, and do you have the power output into A) 4 ohms, and B) 8 ohms? Some subwoofer amps give considerably more power into 4 ohms than 8 ohms.
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Old 30th April 2002, 06:04 AM   #14
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Oops-too hasty. Actually, those outside dimensions will yield a box that is 1.5 cubic feet internal. forgot to subtact twice the thickness from the outside measurements.

The Blueprint 1001 and the Dayton Titanic MkII give almost identical performance in a 1.5 cubic foot box. The Blueprint driver is somewhat cheaper than the Titanic.

A 3" diameter port of 16" length tunes the box to 26 Hz. With these excursions-very long, 16mm-a flared port is a good idea. Available Madisound or Parts Express. Both charge $12.00
www.partsexpress.com
www.madisound.com

The Aerial Acoustic sub has an excursion of almost 2 inches. I assume that is back-to-front. These subs have an excursion of 33 mm back-to-front. That means a 3 dB theoretical difference in top volume. Don't worry, you'll never hear it. In a ported enclosure, you will not reach the limits of these subs' excursions. A ported box means your speaker only has to move 25% as much as a sub in a sealed box has to.

Blueprint 1001 is in blue, Dayton Titanic Mk II is in red. Green line is the line where output is 3 dB down from the midpoint:
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Old 30th April 2002, 06:29 AM   #15
Wizard of Kelts
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Jason: Quote your page: "USD pro c 15" 700watts single voice C....powering my 15" is a yamaha fixed buy me. has peaked at 620 rms with my meter at 42.hz into the sub.. just a simple one to get it running soon to have my 800wt amp mosfet ."

Actual power has everything to do with impedance. Is there anyway you can tell me the AC current at any drive voltage at 42 Hz? If 42 Hz is an impedance peak, and your meter measures simple AC voltage, then you are not approaching 620 watts.
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Old 1st May 2002, 12:06 AM   #16
jleaman is offline jleaman  Belgium
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Default Im usein'

im useing a n-channel built buy me but desighned from e-holton to power my sub .
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Old 1st May 2002, 12:51 AM   #17
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well here are some relly goood 10inch subs.....

1.Blaupunkt OVERDRIVE ODwa1000
2. kicker C10vr
3. paniconic CJ-HD252

all are good 10 in woofers
i sugest #1 if you got to money
__________________
it is always better if you build your own...
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Old 1st May 2002, 04:24 AM   #18
Wizard of Kelts
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Default Re: Im usein'

Quote:
Originally posted by JasonL
im useing a n-channel built buy me but desighned from e-holton to power my sub .
A) Power into 4 ohms?
B) Power into 8 ohms?
C) Link to website with info on the amp?

The specs sometimes contain the info on power into 4 & 8 ohms.
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Old 1st May 2002, 04:31 AM   #19
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I'm running a boss audio 12" daul voice coil sub in a 2.5 cubic foot cabinet with a 4"aero port.This sub has a 3" travel and moves massive amounts of air.Boss audio has a 10" version thats just as impressive.Check it out !
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Old 1st May 2002, 05:08 AM   #20
Wizard of Kelts
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Jason:

Okay, I'll answer my own question. I went to A. Holton's site-traced it through the "Search" of this forum-and found the construction booklet for the AV800 amp here. Here is the address for A Holton's site:
http://www.aussieamplifiers.com/index.html

It does matter if you are running a 4 ohm or 8 ohm speaker, though you can run either. Here are the specs, quoted from the construction booklet:

Specifications for the AV800 MOSFET Amplifier
All measurements were taken at an AC Mains input of 240 volts.
And with a 2kva Toroidal Transformer powering the Amplifier module.
Filtering with only 10,000uf per voltage rail
One channel only was been driven.

Frequency response 10hz to 100khz

THD measured at 100 watts into 8 Ohms 0.01% @1khz

Power Output into 8 Ohms = 450 Watts RMS

Power Output into 4 Ohms = 820 Watts RMS

Damping Factor = 400
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