thoughts and opinions?

[Ricksta]

Hi all just picked up a kenwood kac9105d amp and a soundstream tarantula t5 12".

My question is should i runn this setup at 1, 2 or 4 ohms?

T5 sub is dvc 2 ohms 900rms, 1100 peak
Amp is 500 watts RMS x 1 at 4 ohms (900 watts x 1 at 2 ohms) and 1-ohm stable (output regulated to 900 Watts)

Any help would be appreciated. kind of a new to the whole sup and amp thing as my car already had a system in it when i bought it.

 

[StoneX]

The sub is dual 2 ohm, so it can only be wired in series as 4 ohm or in parallel as 1 ohm.

The amp makes 500Wrms at 4 ohm or 900Wrms at 1 ohm.

So you would wire the sub's coil in parallel so it gets 900Wrms.

 

[Ricksta]

Thanks for the reply mate. I thought 1ohm but read a few web pages saying that using 1 ohm would be shortning the life of my amp.

 

[StoneX]

If the amp is rated to run at 1 ohm, then it'll be fine. It's when an amp is only rated to 2 ohm and people run it at 1 ohm, that it flows more current than designed and can eventually cook itself.

 

[Ricksta]

cheer's mate can someone explain the port when making an enclosure?

sub spec's say should be 2.50 ft3 and port 4x8 now is that 4inch's by 8 inch's? or in it 4 inch's in diameter and 8 inch's deep? i don't understand the whole port thing. isn't it the port that determines the hz?

 

[StoneX]

The port will be 4" in diameter and 8" long.

Yes, basically the port determines the tuning frequency and the box volume determines the frequency response. Some info.

 

[Ricksta]

cheer's mate I ended picking up a soundstream box today to go with the sub. i have connected the voice coil's in parallel (1 ohm) the amp i have has 2+'s and 2-'s can i connect it to any of the connections or is it supposed to be bridged? i thought mono was only one channel?

 

[StoneX]

Mono amps are one channel but they sometimes have multiple connections for when people use multiple subs. Those two separate connections are just parallel inside the amp so either + and either - can be used.