A cheaper alternative to the Behringer Amps? - Page 7 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #61 of 102 Old 01-01-10, 03:34 PM Thread Starter
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Re: A cheaper alternative to the Behringer Amps?

Does the WinISD graph using the Monolith Driver, Amp and Enclosure give 102dB @ 20hz too?
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post #62 of 102 Old 01-01-10, 03:49 PM
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Re: A cheaper alternative to the Behringer Amps?

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Does the WinISD graph using the Monolith Driver, Amp and Enclosure give 102dB @ 20hz too?
We cant model it based on the BK amp, we dont know what they have done to it. We can model a peerless xxls driver, and in a 90 litre ported enclosure, then use 300watts to see what it gives. It shouldnt be far off but there isnt really any way to know how accurate it would be, the exact particulars of the design isnt something BK would release.
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post #63 of 102 Old 01-01-10, 03:57 PM
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Re: A cheaper alternative to the Behringer Amps?

Zactly. The Beringer kept tripping at 20Hz into 4 ohms bridged for a reason..... Won't handle it. The BASH amps have been proven over time to be gutsy and reliable. If you NEED 2000 watts, buy a Crown. If not, as in this application, the plate is a great buy with more flexibility, more features, and enough power to do the job for less money

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post #64 of 102 Old 01-01-10, 04:11 PM Thread Starter
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Re: A cheaper alternative to the Behringer Amps?

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We cant model it based on the BK amp, we dont know what they have done to it. We can model a peerless xxls driver, and in a 90 litre ported enclosure, then use 300watts to see what it gives. It shouldnt be far off but there isnt really any way to know how accurate it would be, the exact particulars of the design isnt something BK would release.
It would be an interesting comparison to the two graphs for my sub.
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post #65 of 102 Old 01-01-10, 04:12 PM Thread Starter
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Re: A cheaper alternative to the Behringer Amps?

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Zactly. The Beringer kept tripping at 20Hz into 4 ohms bridged for a reason..... Won't handle it. The BASH amps have been proven over time to be gutsy and reliable. If you NEED 2000 watts, buy a Crown. If not, as in this application, the plate is a great buy with more flexibility, more features, and enough power to do the job for less money

Bryan
Hey Bryan, welcome back.

Do you know what the O-Audio 500w amps peak power is?
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post #66 of 102 Old 01-01-10, 04:27 PM
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Re: A cheaper alternative to the Behringer Amps?

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Zactly. The Beringer kept tripping at 20Hz into 4 ohms bridged for a reason..... Won't handle it. The BASH amps have been proven over time to be gutsy and reliable. If you NEED 2000 watts, buy a Crown. If not, as in this application, the plate is a great buy with more flexibility, more features, and enough power to do the job for less money

Bryan
Can you explain to me why my EP4000 is doing a sterling job of powering my dual driver sub without even getting warm, even at ref level?

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It would be an interesting comparison to the two graphs for my sub.
I just did a quick model using a 90 litre ported design, tuned to 20hz, with a pre loaded peerless driver (which might not be the one in the Monolith) and 300 watts. It actually show 108 db @20 hz max. Thats not the whole story though as port speed models as being too high, with port resonances that are to low down really and driver excursion goes nuts at 18hz with full power. The Monolith is obviously different from that model, probably with an on board filter to protect the driver low down and possibly using a tighter driver (lower Vas), but it shows what can be done to a degree. It certainly shows the Monolith is highly likely to be able to achieve what its specs show on paper.

You should notice the curve artificially levels out, then drops like a rock. Thats typical of a ported sub, and shows you how the sealed subs response is naturally smoother. This can work out to make a sealed sub more musical, and can make it easier to EQ into your room.
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post #67 of 102 Old 01-01-10, 04:39 PM Thread Starter
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Re: A cheaper alternative to the Behringer Amps?

I'm not sure, but the potential Monolith Curve looks better than either of the 2 curves for my possible sub.

Not sure now, what I stand to gain.
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post #68 of 102 Old 01-01-10, 04:46 PM
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Re: A cheaper alternative to the Behringer Amps?

Here is another graph. Ive adjusted it to give 102db at 20hz like the Monolith. Along side it is the AV15-X in its 85 litre enclosure using 500 watts. You be the judge
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post #69 of 102 Old 01-01-10, 04:53 PM Thread Starter
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Re: A cheaper alternative to the Behringer Amps?

That's a bit clearer. Although by my calculations my box (650 x 450 x 450mm) will be more like 110 litres.
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post #70 of 102 Old 01-01-10, 04:58 PM Thread Starter
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Re: A cheaper alternative to the Behringer Amps?

Actually, with external measurements of 650 x 450 x 450 in a cabinet made with 25mm MDF give internal measurements of 600 x 400 x 400?

Therefore 96 litres.
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