[Malazan]

Is there anything special that needs to be done to run one amplifier per subwoofer?

I was thinking about adding a second mrx m110 and running one each to SA 12's

The amp has a set of pre outs

Thanks

 

[Lycancatt]

biggest issue is make sure your electrical system and power wire from battery to the amp location is up to the task of a second amp. otherwise, nothing to do special at all.

 

[miniSQ]

i think one of those amps should be fine for a pair of sa12's. If you can wire them down to 2ohms, that amp should make 1200 watts...plenty.

 

[2DEEP2]

If you already have a mrx m110 and you’re running two SA 12's, I would not be concerned about adding another MRX M110 class D amp to the your vehicles electrical system.

I would be concerned about the ohm load of the SA 12's.

A DVC of 2 ohms can be 4 ohms in series or 1 ohm in parallel.

One SA12 with 2 ohm DVC in parallel will cause problems for one MRX M110.

However, if you ran two SA12 with 2 ohm DVC in parallel and then put the two 1 ohm loads in series, you get a 2 ohm load at one MRX M110. Something it should be able to handle, producing 1100 watts (550 watts per sub).

If you wired the SA12 2 ohm DVC in series for 4 ohms at one MRX M110, it should produce 650 watts per sub. So about a 200 watt increase on the system.

A DVC of 4 ohms can be 8 ohms in series or 2 ohm in parallel.

The MRX M110 should be able to handle both cases.

The 4 ohm DVC wired to 2 ohm produces 1100 watts from one MRX M110.
About 1550 to 1100 watt increase on the system.

Or two SA 12's with 4 ohm DVC wired to 2 ohms in series for 4 ohms at the amp, producing 650 watts from one amp (325 watts per sub). You don't want to do 2 ohm in parallel (1 ohm mono).

The 4 ohm DVC wired to 8 ohm produces about 325 from one MRX M110.

Or two 4 ohm DVC SA 12's wired in series for 8 ohms in parallel for 4 ohms at the amp, producing 650 watts from one amp. You don't want to do 8 ohm in series (16 ohms mono).

 

[Huckleberry Sound]

Some great explaining going on here!!!

 

[Malazan]

If you already have a mrx m110 and you’re running two SA 12's, I would not be concerned about adding another MRX M110 class D amp to the your vehicles electrical system.

I would be concerned about the ohm load of the SA 12's.

A DVC of 2 ohms can be 4 ohms in series or 1 ohm in parallel.

One SA12 with 2 ohm DVC in parallel will cause problems for one MRX M110.

However, if you ran two SA12 with 2 ohm DVC in parallel and then put the two 1 ohm loads in series, you get a 2 ohm load at one MRX M110. Something it should be able to handle, producing 1100 watts (550 watts per sub).

If you wired the SA12 2 ohm DVC in series for 4 ohms at one MRX M110, it should produce 650 watts per sub. So about a 200 watt increase on the system.

A DVC of 4 ohms can be 8 ohms in series or 2 ohm in parallel.

The MRX M110 should be able to handle both cases.

The 4 ohm DVC wired to 2 ohm produces 1100 watts from one MRX M110.
About 1550 to 1100 watt increase on the system.

Or two SA 12's with 4 ohm DVC wired to 2 ohms in series for 4 ohms at the amp, producing 650 watts from one amp (325 watts per sub). You don't want to do 2 ohm in parallel (1 ohm mono).

The 4 ohm DVC wired to 8 ohm produces about 325 from one MRX M110.

Or two 4 ohm DVC SA 12's wired in series for 8 ohms in parallel for 4 ohms at the amp, producing 650 watts from one amp. You don't want to do 8 ohm in series (16 ohms mono).

I'm gong to wire them like option 2, so I get 550per sub

Subwoofer Wiring Diagrams, Two 2 ohm Dual Voice Coil (DVC) Speakers


I guess my concern is, will 550 watts be enough to drive the SA 12's or do they really require more power to sound good

 

[2DEEP2]

I'm not familiar with the SA sub to know if they are power hungry.

I normally throw a lot of watts at a sub. Especially if they have what I consider to be a low sensitivity (something below 88 dB @ 1 watt/1 m).

550 watts may be OK for what you want.

Do you want SQ, SQL or SPL?

 

[Malazan]

The subs are going into a sealed enclosure, WinISD models them at .711 Qtc with an F3 of 46hz