38 replies to this topic

[TR7]

hi i have four amps that i can use but i dont know witch ones to use

the set up i would like to do is 6.5 conponents & 13cm speakers plus two 6 or 6.5 subs

this are the amps i have please help

Edited by TR7, 13 September 2008 - 06:55 PM.

[Ouster]

The Caliber is a good amp, the second one will likely be the worst of the three. Completely depends on what speakers you're running though and what RMS rating they are.

Edited by Ouster, 13 September 2008 - 08:49 PM.

[TR7]

The Caliber is a good amp, the one on the left will be the worst of the three. Not sure about the middle one, it's not one I recognise. Completely depends on what speakers you're running though and what RMS rating they are.

the watts that are on the front of the amps are thay rms or max

the 13cm speakers are 100rms each the subs are 250 but thay say 120rms is best for long life

i havent got the conponent yet but i was thinging of using the caliber for the 13cm & the conponents & using the purple one for the subs

would that work or would my system be under powered?

i do have another amp ill get a pic of that up tomorrow

[Ouster]

Use google to find out the spec of the amps. The higher the RMS and lower the THD (total harmonic distortion), the better.

The caliber is 80W RMS x 4, which will be underpowering the speakers slightly. As long as your careful not to play it so loud they start to clip, it should be ok. You could use the purple amp for the subs as that sounds suited...but personally I wouldn't as it's unbranded. It may not have certain features that more expensive amps have as well, such as protection mode, high pass/low pass filters etc etc.

[TR7]

Use google to find out the spec of the amps. The higher the RMS and lower the THD (total harmonic distortion), the better.

The caliber is 80W RMS x 4, which will be underpowering the speakers slightly. As long as your careful not to play it so loud they start to clip, it should be ok. You could use the purple amp for the subs as that sounds suited...but personally I wouldn't as it's unbranded. It may not have certain features that more expensive amps have as well, such as protection mode, high pass/low pass filters etc etc.

the fire & ice has 90rms 2 channels
would i be better to get a different amp for the subs if so what are my options

what do you mean by clip

Edited by TR7, 13 September 2008 - 09:24 PM.

[Ouster]

Clipping in a nutshell is when the signal to the speakers starts to become square. Speakers like sine waves - but if an amp is asked to produce too much power than it can (usually by people using the gain knob as a volume control), instead of a sine wave, the signal will be "clipped" at the extremities - i.e. instead of a smooth curve it'll be straight instead at the end points. This will destroy speakers eventually. More of a problem on subs as they usually take a lot more power, but it's something to always keep in mind.

If you want a suggestion, ditch the 13cm speakers, stick a nice set of components up front and have the sub(s) in the rear. Also, the sound you get out will only be as good as your head unit and the amp you use.

[TR7]

Clipping in a nutshell is when the signal to the speakers starts to become square. Speakers like sine waves - but if an amp is asked to produce too much power than it can (usually by people using the gain knob as a volume control), instead of a sine wave, the signal will be "clipped" at the extremities - i.e. instead of a smooth curve it'll be straight instead at the end points. This will destroy speakers eventually. More of a problem on subs as they usually take a lot more power, but it's something to always keep in mind.

If you want a suggestion, ditch the 13cm speakers, stick a nice set of components up front and have the sub(s) in the rear. Also, the sound you get out will only be as good as your head unit and the amp you use.

so witch amps would be best if any & would i be better off selling the other amps & getting a better one if so can you suggest any?

could i use the caliber for the subs?

what conponents do you have?
how much were thay?

[Ouster]

My components are a pair of MB Quart PCE-216, complete with a whacking great pair of crossovers.

They were £130 or so from Mark@LCS (member on here, fantastic deal), although retail is something silly like £310. They'll take 130W RMS all day too!

Personally, I'd sell them all and get a good 4 channel amp which kicks out 100W RMS per channel or so. mainly because it'll easier to wire and physically place the amp.

[TR7]

My components are a pair of MB Quart PCE-216, complete with a whacking great pair of crossovers.

They were £130 or so from Mark@LCS (member on here, fantastic deal), although retail is something silly like £310. They'll take 130W RMS all day too!

Personally, I'd sell them all and get a good 4 channel amp which kicks out 100W RMS per channel or so. mainly because it'll easier to wire and physically place the amp.

so use one amp for the conponents & subs?

do you know of any good amps?

is this what set up you have 1 amp powering every thing?

does mark@lcs do amps?

[Ouster]

Yep, I've got one amp doing everything - a Vibe Blackbox Stereo 4, 4x110W RMS @ 4 ohm. Had a very good review on Talk Audio. If I was running "proper" subs then I wouldn't do it this way, but as I'm running Genesis P69s for bass then it should be great.

Mark does whatever he's got in stock at the moment!

[TR7]

Yep, I've got one amp doing everything - a Vibe Blackbox Stereo 4, 4x110W RMS @ 4 ohm. Had a very good review on Talk Audio. If I was running "proper" subs then I wouldn't do it this way, but as I'm running Genesis P69s for bass then it should be great.

Mark does whatever he's got in stock at the moment!

do you have a pic of the genesis p69s what size are thay?

how would i only get the subs to do the bass & the conponents to do the rest as i dont want to run bass though the conponents as this is the job of the subs to do?

[Ouster]

http://www.caraudiod...ohm-p-6289.html
I've got proper pics coming tomorrow. If subs can be sexy, these definitely are.

That's done with the high pass/low pass filter knobs on the amp itself. With my amp, there's two knobs, which each control two channels. So I can run my components off two channels, run these on high pass to filter out the low tones, and run the subs off the other two channels with the low pass switch on so they don't play any hi's. Cheaper amps don't have these options.

[TR7]

http://www.caraudiod...ohm-p-6289.html
I've got proper pics coming tomorrow. If subs can be sexy, these definitely are.

That's done with the high pass/low pass filter knobs on the amp itself. With my amp, there's two knobs, which each control two channels. So I can run my components off two channels, run these on high pass to filter out the low tones, and run the subs off the other two channels with the low pass switch on so they don't play any hi's. Cheaper amps don't have these options.

OK thanks for explaining to me

how do your subs sound that you have were have you put them & have you made enclosers for them?

would this be better than 6inch or 6.5 inch subs?

[Ouster]

They can run free air, so no enclosures needed! I'm mounting them on a baffle on the rear parcel shelf. Haven't run them yet, I need to cut the metal parcel shelf and also make the baffle - hopefully should get that done either tomorrow or the next day. The cone area of the pair is similar in size and output to a single 10" sub, but takes up far less space - this is why I go them. Originally I was going to get two elemental designs 6.5" subs but decided against this as they needed enclosures and I couldn't be bothered/didn't have the time to make them!

As for if my way is better or not...impossible to say, I haven't heard any 6.5" subs yet so I couldn't comment.

[TR7]

They can run free air, so no enclosures needed! I'm mounting them on a baffle on the rear parcel shelf. Haven't run them yet, I need to cut the metal parcel shelf and also make the baffle - hopefully should get that done either tomorrow or the next day. The cone area of the pair is similar in size and output to a single 10" sub, but takes up far less space - this is why I go them. Originally I was going to get two elemental designs 6.5" subs but decided against this as they needed enclosures and I couldn't be bothered/didn't have the time to make them!

As for if my way is better or not...impossible to say, I haven't heard any 6.5" subs yet so I couldn't comment.

far comment

would your subs go under the rear seats?

could i put the amp under the rear seat with a hatch in the top of the seat for axises to the amp?