input on these woofers and amp please

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Mar 29, 2005 | 07:03 PM

#11

inprogress

Joined: Feb 2005

Posts: 42

RE: input on these woofers and amp please

http://forum.ecoustics.com/bbs/messa...rd-topics.html

for all your audio info !!!!! its a forum

Mar 29, 2005 | 07:14 PM

#12

Derf00

Gentleman's Relish

Joined: Feb 2005

Posts: 13,189

From: AZ

RE: input on these woofers and amp please

Quote:

ORIGINAL: fordguy17

sony package

what do you think of the above pachage? yeah its sony stuff, but i'm not looking for earth shattering bass. I just want some extra bass in my car. thanks.

Nay on both, you want an amp with a S/N (signal to noise) ratio of 101 or better and subs with sensitivity ratings of 90db or better. Plus, you typcially don't want to buy an amp with a built in equalizer or crossover (thus the high THD of .08-.1%) You want to split the signal before it reaches the sub amp.

S/N on the amp is how good of a job it does at maintaining a quiet background (no noise) 100 is average...
Sensitivity ratings on speakers is how efficiently they convert the wattage received to actual sound instead of heat or noise.
600 Watts max? At what 1/2 ohm?? Yuck.
THD deals with how much noise the amp is introducing into the signal.

Get Rockford Fosgate amps and Cerwin Subs, cost more but are bullet proof. Nagamichi makes awesome active crossovers but are really expensive.

Mar 29, 2005 | 07:19 PM

#13

Derf00

Gentleman's Relish

Joined: Feb 2005

Posts: 13,189

From: AZ

RE: input on these woofers and amp please

Quote:

ORIGINAL: Dare

My technical take on this, and I have to say the best way to know if a system is good is to listen to it. Stats don't really tell you how good is sounds.

Sony must take a Dummy's Guide to Audio and build the system exactly the recommended way.

Amplifier signal-to-noise ratio: 100dB (Yep, because 100dB or better is the only way to go)
Subwoofer signal-to-noise ratio: 88dB (this value is normally low on subwoofers, cuz you can't hear this frequency anyway)
Subwoofer frequency response: 27Hz - 3kHz (great, anything under 30Hz will thump)
Amplifier: variable 50Hz-300Hz low-pass filter (no clue what this means, the 50Hz seems odd but I'm sure it's just dandy!)
150W RMS power handling - (perfect because you have 2 speakers totaling 300W, which should be 50% of the total watts which is OMG! 600W!)

Signal to noise - efficiency. below 90 means you have a less efficient speaker meaning you have to push the amp harder (turning the volume up) in order to get the same volume of a more efficient speaker.
Amplifier: 50-300HZ low pass filter, that means, whatever cutoff he chooses '50-300' everything below that will be sent to the sub.

Mar 30, 2005 | 05:29 AM

#14

Sicx13

1st Gear Member

Joined: Mar 2005

Posts: 84

From:

RE: input on these woofers and amp please

Quote:

ORIGINAL: Derf00

Quote:

ORIGINAL: fordguy17

sony package

what do you think of the above pachage? yeah its sony stuff, but i'm not looking for earth shattering bass. I just want some extra bass in my car. thanks.

Get Rockford Fosgate amps and Cerwin Subs, cost more but are bullet proof. Nagamichi makes awesome active crossovers but are really expensive.

Sony=Garbage unless your buyin a tv. cerwin subs are have some of the best bass ive got from a sub but they are hardly bullet proof. i had four vega series 12s in my old lumina. i got more than my moneys worth on the best buy warranty i bought with them(until best buy stopped carrying them)granted i only blew two of them. the had a major defect with the wire that goes from the terminal to the voice coil. the wires were always burning in half.
i agree with the rockford amp as long you get a mono amp cuz the 2 channel amps dont take 2 ohm loads to well and you will smell the smokes in your car when it dies