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Questions, Questions, Questions..

post #1 of 6
Thread Starter 

Hey Guys, I appreciate everyone who has tried to help me out with the many questions I've posted on here.

Recently I have acquired (2) Polk Audio Rti A9's and a Pioneer SC-1228-K reciever, I have a couple more questions and would appreciate it again if people can assess them and help me out =). I apologize in advance for sounding like a newbie but you have to start somewhere and the best thing to do is ask questions.

 

Some things you might want to know is my room is VERY small probably 10' x 11' maybe even smaller.

 

1) What level do I have to raise the amp before I start damaging it or the speakers, or am I already damaging them? 

2) Should I invest in a sub or bi-amp the speakers first?

3) What amp should i be looking to power them?

4) I'm pretty sure I do have pre-outs for another amp but I am not sure, how do I know?

 

Any other comments or concerns are much appreciated   

 

Again thanks for anyone who decides they would like to help out a newbie get a head start into the audio world.

:) 

post #2 of 6
Quote:
Originally Posted by Klitasaurus View Post

Hey Guys, I appreciate everyone who has tried to help me out with the many questions I've posted on here.
Recently I have acquired (2) Polk Audio Rti A9's and a Pioneer SC-1228-K reciever, I have a couple more questions and would appreciate it again if people can assess them and help me out =). I apologize in advance for sounding like a newbie but you have to start somewhere and the best thing to do is ask questions.

Some things you might want to know is my room is VERY small probably 10' x 11' maybe even smaller.
Quote:
1) What level do I have to raise the amp before I start damaging it or the speakers, or am I already damaging them? 

you know when its loud enough for your ears to start bleeding? - Just a notch or two below that. if you calibrated your speakers using your avr's auto cal routine you should be able to turn it up to at or near -0dB no problem.

Quote:
2) Should I invest in a sub or bi-amp the speakers first?

Bi-amp is a waste of time period - forget you ever heard about it. for more info check the audio theory section for a couple of recent discussions on bi-amping.

A good sub will round out your system for sure and it is where I would look next for a nice upgrade. I would check out offerings from svs, psa, hsu and rythemik. for $500 - $1000 you can get great subs from any of those outfits.

Quote:
3) What amp should i be looking to power them?

what is wrong with your avr? If you are able to achieve the desired spl levels without undue distortion, harshness or clipping in your room then an additional amp is not necessary. If you choose to add an amp check in to offerings from emotiva. an xpa series amp would pair nicely to your set up.

Quote:
4) I'm pretty sure I do have pre-outs for another amp but I am not sure, how do I know?

on the back of your avr will be an area labled pre-outs. i am not super familiar with pioneer models so i couldnt tell ya off hand without looking. a quick google search did not reveal much info on your model.

Quote:
Any other comments or concerns are much appreciated   

Again thanks for anyone who decides they would like to help out a newbie get a head start into the audio world.
smile.gif  

enjoy the music!
post #3 of 6
Thread Starter 

Thank you so much for your input jason! It is much appreciated, however I am not too sure what clipping sounds like. I have had the AVR up in the +5-10 decibel range and it was LOUD. If you could link me to the discussion on bi-amping that would be great.

 

Nothing is wrong with my AVR I have just heard that these speakers are very power hungry bi-amping is a must.

 

Anybody elses input on this subject is greatly appreciated 

 

Thanks again.

post #4 of 6
Quote:
Originally Posted by Klitasaurus View Post

Thank you so much for your input jason! It is much appreciated, however I am not too sure what clipping sounds like. I have had the AVR up in the +5-10 decibel range and it was LOUD. If you could link me to the discussion on bi-amping that would be great.

clipping sometimes is in audible and sometimes not very noticeable, but when you hear it you know...it could sound like distortion nasties or even clicks and pops.

biamp thread #1

biamp thread #2
Quote:

Nothing is wrong with my AVR I have just heard that these speakers are very power hungry bi-amping is a must.

whoever told you that biamping is a solution for power hungry speakers is flat out wrong. passive biamping does not give you any more power. passive biamping off an avr can actually affect total available power as avr's are more efficient the less amp channels used. passive biamping with 2 seperate power amps mignt under the most ideal conditions possible give you an extra 1 or 2 db worth of headroom and might under the most ideal conditions reduce or eliminate distortion in the tweeter if the woofer is distorting. - neither are proven to the best of my knowledge but are theories that on paper could be possible positive benefits.

a lot of folk say the rtia9's are power hungry but also realize that polk rates them as 90db efficient speakers - meaning it takes 1 watt of power to make 90 db's worth of loudness at 1 meter distance. every doubling of power nets you about 3 db's and every doubling of distance looses you about 3 db's. the rita9's are about average when it comes to efficiency ratings. also of note, polk says you can use as little as 50 watts of power to power these speakers. many guys do use amps on these speakers and that's cool - but i say try with your avr for a while to see if it works out for your needs in your room before jumping headlong into separate amp territory. you may find you are perfectly satisfied with powering your a9's off your avr - you may also find your avr is lacking and want to up the available juice.
Quote:
Anybody elses input on this subject is greatly appreciated 

Thanks again.


no problem. you have some very nice speakers and you should get years of enjoyment out of them.
post #5 of 6
Thread Starter 

Okay so i must need to do ALOT more research because i cant understand most of that haha, all i know is that they sound pretty good to me and as long as im not wrecking them i'm happy.

 

As for the enjoying them for years to come i sure hope so.

 

Thank you for you help I've also PM'd you a question regaurding the subwoofer to add to my setup.

post #6 of 6
Modern amplifiers have thermal shutdown circuits that turn off the amplifier before any damage is done. As long as you aren't experiencing that, then you aren't clipping the amp for any meaningful length of time.
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