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Car Forum / Driving, Maintenance, Tuning / Car Audio / December 2003

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Help choose between 2 amps

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Benjamin Donahue - 07 Dec 2003 20:17 GMT
So I've decided to go with a 4ohm ID10 v.3.

I'm think about going with either of these two amps:

MTX Thunder251D
MTX Thunder311D

It seems like the 251 would be the better choice because it matches the
recommended RMS exactly at 2 ohms.  Is there any reason I might want to go
with the 311.

Also, let me know if I shouldn't go with either of these.

Thanks.
Signature

Benjamin Donahue

Paul Vina - 07 Dec 2003 23:01 GMT
If you can afford the 311 go with that one.  i'd rather have all the power I
can get.

Paul Vina

> So I've decided to go with a 4ohm ID10 v.3.
>
[quoted text clipped - 10 lines]
>
> Thanks.
Captain Howdy - 07 Dec 2003 23:52 GMT
I have to agree with Paul for once, I'd go with the 311D. You'll find that
both of these amps will put out a little more power then their rating, since
that's a base rating.

>If you can afford the 311 go with that one.  i'd rather have all the power I
>can get.
[quoted text clipped - 15 lines]
>>
>> Thanks.
John Durbin - 08 Dec 2003 00:17 GMT
depending on which rating you're looking at - the 251D is actually a 160
watt amp when rated for continuous, 12.5VDC 2 ohm power. The 250 watt
figure is obtained with a dynamic measurement with THD+N limited to 2%
during a 20 millisecond "on" burst, and driving a reactive load. This
seems to be the way MTX rates their amps these days...

JD

>I have to agree with Paul for once, I'd go with the 311D. You'll find that
>both of these amps will put out a little more power then their rating, since
[quoted text clipped - 24 lines]
>>>Thanks.
>>    
thelizman - 08 Dec 2003 05:21 GMT
> So I've decided to go with a 4ohm ID10 v.3.
>
[quoted text clipped - 5 lines]
> It seems like the 251 would be the better choice because it matches the
> recommended RMS exactly at 2 ohms.

What does that have to do with anything? You're running a 4 ohm speaker.
The 2 ohm rating on the amp won't mean sh.t to you.

> Is there any reason I might want to go
> with the 311.

Since you're running "a" 4 ohm speaker, go with whichever amp puts out
more power 4 ohms.

> Also, let me know if I shouldn't go with either of these.

You shouldn't go with either of these amps. Buy DEI amplifiers instead.
Why? Because I have that opinion, and you asked for it.

--
Lizard
I H8 Noobz
narcolept - 08 Dec 2003 20:22 GMT
> > So I've decided to go with a 4ohm ID10 v.3.
> >
[quoted text clipped - 23 lines]
> Lizard
> I <3 Noobz

lizzy.. you're trying to use logic and reason. THAT IS NOT ALLOWED HERE

narcolept
-----
just towing the line
Benjamin Donahue - 09 Dec 2003 04:37 GMT
> > So I've decided to go with a 4ohm ID10 v.3.
> >
[quoted text clipped - 18 lines]
> Lizard
> I H8 Noobz

Well, since the sub has dual voice coils, I'm going to be wiring them in
parallel.  Wouldn't this produce a 2 ohm load?  If I'm mistaken, let me
know.  I don't want to get the wrong amp.
thelizman - 09 Dec 2003 05:43 GMT
> Well, since the sub has dual voice coils,

Holy Errors of Omission Bat Man, don't you think you ought to have
mentioned that to begin with?

--
Lizard
sheesh...
Brandon Buckner - 09 Dec 2003 17:21 GMT
Well, in his defense, the ID V.2 and V.3 subs are only available in DVC.

Brandonb

>> Well, since the sub has dual voice coils,
>
> Holy Errors of Omission Bat Man, don't you think you ought to have
> mentioned that to begin with?
Paul Vina - 10 Dec 2003 02:10 GMT
But he never said if the 4 ohms he mantioned was for a single coil or the
final load.

Paul Vina

> Well, in his defense, the ID V.2 and V.3 subs are only available in DVC.
>
[quoted text clipped - 4 lines]
> > Holy Errors of Omission Bat Man, don't you think you ought to have
> > mentioned that to begin with?
Benjamin Donahue - 10 Dec 2003 04:39 GMT
Yea, I kinda thought it was implied, but I guess it wasn't that clear.
Anyways, thanks for all your help guys.  I really do appreciate it.
thelizman - 10 Dec 2003 05:39 GMT
> Well, in his defense, the ID V.2 and V.3 subs are only available in DVC.

I forgot we were all supposed to be walking f.cking databases of the
latest fad in pos speakers.

--
Lizard
Brandon Buckner - 10 Dec 2003 21:33 GMT
A quick jump over to www.imagedynamicsusa.com cleared it up. Its always
good to familiarize yourself with the equipment being asked about before
responding.

Brandonb

>> Well, in his defense, the ID V.2 and V.3 subs are only available in DVC.
>
> I forgot we were all supposed to be walking f.cking databases of the
> latest fad in pos speakers.
thelizman - 11 Dec 2003 06:15 GMT
> A quick jump over to www.imagedynamicsusa.com cleared it up. Its always
> good to familiarize yourself with the equipment being asked about before
> responding.

Actually, it's always good if the person asking the question supplies
relevant data. You don't go do the doctor and say "I'm hurt" and expect
him to write a prescription right there do you?

--
Lizard
Unless it's Rush Limbaugh's doctor...
Paul Vina - 11 Dec 2003 00:43 GMT
What's wrong with ID subs?

Paul Vina

> > Well, in his defense, the ID V.2 and V.3 subs are only available in DVC.
>
[quoted text clipped - 3 lines]
> --
> Lizard
 
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