Help needed please!

[SourceUp]

Hi guys, i have a Infinity Reference 1600A amp

Specs

Reference Series Class D Monoblock Amplifier

RMS Power Rating:

4 ohms: 400 watts x 1 chan.

2 ohms: 600 watts x 1 chan.

Max Power Output: 894 watts x 1 chan.

Tuned Bass EQ (0-6 dB bass boost at 50 Hz)

Variable low-pass filter (32-320 Hz, 12 dB/octave)

My question is what kinda of sub do i need exactly, my box is of a 15" one.

So if i get a 2 ohm the RMS does not have to exceed 600W, right?

and if its 4 ohm the RMS does not have to exceed 400W, am i correct? Thank you in advance, also what is better 2 ohm of 600RMS or 4ohm of 400RMS?

EDIT: also what does dual 2 ohm mean? and what has lower bass:

Frequency response: 20-250 Hz

SPL (dB @ 1w/1m): 86 dB

or

Frequency response: 23-400 Hz

Sensitivity: 96 dB

Click to read more...

 

[Umbra]

Depending on a bunch of factors and the build quality of the sub you can surpass the RMS rating, but if you're new to this it's best not to exceed the RMS rating of the sub too much.

You're looking for a 15" sub, obviously. Is the box sealed or ported (meaning there's a slot tuned to a certain frequency)?

You're correct. You want the sub to be rated for not much more than 400W RMS if it's a 4ohm load or 600W RMS if it's a 2ohm load. Ohms are a measure of impedance, or electrical resistance. The less resistance, the more power (an oversimplification, but that's the gist).

The subs coils are what helps them moved and they come in different impedance so you have wiring options. Subs are either single voice coil (SVC) or dual voice coil (DVC). If they're SVC they have one set of terminals (positive and negative), if they're DVC they have two sets of terminals.

The advantage of DVC subs is you have more wiring options; you can wire the coils in series or parallel with one another. For example, a SVC 2 ohm sub is just that, 2 ohms. Same with a 4 ohm sub. But if they're DVC 2 ohms you can wire the sub for a 4 ohm load or a 1 ohm load. If it's DVC 4 ohms you can wire it for an 8 ohm load or a two ohm load. If you have multiple subs you have even more options. You can wire the coils one of two ways, then the subs themselves one or two ways.

The coil configuration is just for wiring. SVC and DVC subs should sound the same.

For your setup you'd probably want either a SVC 2 ohm sub or a DVC 4 ohm sub (wired in parallel to 2 ohms) so you can feed it 600W RMS. Come back to this thread if you get a DVC sub and we'll show you how to wire it.

 

[SourceUp]

Thank you so much for the explanation, i will go around shops tomorrow and will write back what i got, thanks again. It ***** when you haven't got a friend who understands from this things and i don't really trust the shop owners. Thanks again

 

[CSCStang]

Check out the classifieds here on this site. Lot of good prices and choices.

 

[LosIsATool 5,000+ posts]

Hi guys, i have a Infinity Reference 1600A amp
Specs

Reference Series Class D Monoblock Amplifier

RMS Power Rating:

4 ohms: 400 watts x 1 chan.

2 ohms: 600 watts x 1 chan.

Max Power Output: 894 watts x 1 chan.

Tuned Bass EQ (0-6 dB bass boost at 50 Hz)

Variable low-pass filter (32-320 Hz, 12 dB/octave)

My question is what kinda of sub do i need exactly, my box is of a 15" one.

So if i get a 2 ohm the RMS does not have to exceed 600W, right?

and if its 4 ohm the RMS does not have to exceed 400W, am i correct? Thank you in advance, also what is better 2 ohm of 600RMS or 4ohm of 400RMS?

EDIT: also what does dual 2 ohm mean? and what has lower bass:

Frequency response: 20-250 Hz

SPL (dB @ 1w/1m): 86 dB

or

Frequency response: 23-400 Hz

Sensitivity: 96 dB

This last one looks like BS.