2x 4ohm DVC subs - 4ohm monoblock or 2ohm 2 channel, correct?

MrSix · 27 Dec 2008 at 09:40

Okay so with my Christmas pennies I'm looking to get an amp for my two 6" subs . They're 4ohm dual voice coil and are rated at 250watts (RMS) each.

Following these diagrams:

Monoblock:

2 channel:

It's lead me to believe that I'll need either a monoblock that supplies 500watts at 4ohms or a 2 channel amp that will supply 250watts (per channel) at 2ohms.

First question, is this correct?

Second question, if the above is correct would the Pioneer GM-5300T be a good choice? http://caraudiosecurity.com/shop/product/products_id/5671.html.

CAS said:
Product Features

* Bridgeable 2-channel capability 2 x 250 W or 1 x 760 W (Max. Power)
* Continuous output power: 2 x 125 W (4-ohm) or 1 x 380 W (4-ohm) or 2 x 190 W (2-ohm)

My knowledge of amplifying speakers is rather limited, but I believe that although the subs are rated at 250watts, the 190watts continuous as supplied by that pioneer amp should be enough to competently power them?

If I'm totally barking up the wrong tree please let me know, I'd also be grateful of any other suggestions for amps for under £120 that would be up to the job.

Cheers.

86JR · 27 Dec 2008 at 10:50

2x dvc 4ohm subwoofer = 4 or 1 ohm load to a mono amp

equivalent to 1x dvc 2ohm subwoofer.

Or as you said a 2 channel amp, one off each channel at 2 ohms.

If a sub is rated for 250wrms i normally give them 500wrms, remember on music they wont see that much anyway and you want overhead to avoid clipping.

I dont like Pioneer amps, Genesis, DLS, Focal, etc is much better.

MrSix · 27 Dec 2008 at 11:24

So I'm looking for a two channel amp that'll supply 500watts RMS per channel at 2ohms?

*EDIT*

http://www.caraudiodirect.co.uk/vibe-slick-p-4953.html?cadid=9o9e5nmhm6mqv7h0ealfvaar24
That looks like quite a good option, not quite 500watts each, but 750watts between the two subs and in my budget.

Matt82 · 27 Dec 2008 at 11:47

no. you want at least 500rms at 4ohm or 1 ohm

MrSix · 27 Dec 2008 at 11:56

Vibe amp spec said:
Power @ 1 Ohm 1 x 750 WRMS

Erm?

86JR · 27 Dec 2008 at 16:08

vibe slick are rubbish, you really do get what you pay for. JBL is probably the best you can get for sub £175, the 1500wrms class d amp, but you need 0 awg wiring and preferably a second battery too.

What subs have you got, or have you not got them yet ? Do you like SQ (sound quality) or SPL / Streetbass (loud but not tonally engaging).

I suggest joining http://talkaudio.co.uk/vbb tbh!

Matt82 · 27 Dec 2008 at 17:17

1500rms into 500rms subs is very overkill

750rms will be fine. couldnt say which amps are good or not now though

Finglonga · 27 Dec 2008 at 20:41

6.5" are subs now? They used to be mid range when i was a nipper. :eek:

MrSix · 27 Dec 2008 at 21:14

twoblacklines said:
vibe slick are rubbish, you really do get what you pay for. JBL is probably the best you can get for sub £175, the 1500wrms class d amp, but you need 0 awg wiring and preferably a second battery too.

What subs have you got, or have you not got them yet ? Do you like SQ (sound quality) or SPL / Streetbass (loud but not tonally engaging).

I suggest joining http://talkaudio.co.uk/vbb tbh!

The answers to all of your questions are in my OP.
I want the subs to fill in the low-mid range where components can't quite reach. They are there for punch rather than drone.

They're also in an MR2 and I don't want a second battery - I'm going for quality rather than quantity.