I.C.E. (Audio) & Electrical Upgrades Post all your I.C.E. (In Car Entertainment) and wiring questions here (Audio, video etc.)

HU powering Kappa Perfects?

Thread Tools
 
Search this Thread
 
Old Oct 3, 2004
  #1  
Dishwasher's Avatar
Thread Starter
Supertastic Member.
 
Joined: Sep 2004
Posts: 689
Likes: 0
From: St. Louis
Rep Power: 0
Dishwasher is an unknown quantity at this point
HU powering Kappa Perfects?

Is my Alpine CDA 7894 (old I know but it gets the job done, 4x60 watts) enough to power some kappa perfects in the front and stock rears or am I gonna need an amp. If I need an amp what's a decent one that doesn't break the bank. Thanks a bunch.
Reply
Old Oct 3, 2004
  #2  
thoughthard's Avatar
Registered!!
iTrader: (1)
 
Joined: Oct 2003
Posts: 322
Likes: 0
Rep Power: 0
thoughthard is an unknown quantity at this point
IMO, 27 watts RMS is not enough to power components.
Reply
Old Oct 3, 2004
  #3  
brash's Avatar
Registered!!
 
Joined: May 2004
Posts: 215
Likes: 0
Rep Power: 0
brash is an unknown quantity at this point
Generally speaking, you don't ever want to power any manufacturer's high end speakers off the head unit. It will just be a complete waste of money.
Reply
Old Oct 4, 2004
  #4  
Dishwasher's Avatar
Thread Starter
Supertastic Member.
 
Joined: Sep 2004
Posts: 689
Likes: 0
From: St. Louis
Rep Power: 0
Dishwasher is an unknown quantity at this point
any ideas on a good component amp then? thanks
Reply
Old Oct 4, 2004
  #5  
Mystic3030's Avatar
Yup, i'm an A$$hole.
 
Joined: Nov 2002
Posts: 4,277
Likes: 0
From: Florida
Rep Power: 329
Mystic3030 has a spectacular aura aboutMystic3030 has a spectacular aura about
how much you wanna spend?
Reply
Old Oct 4, 2004
  #6  
Rx7_Fan's Avatar
Registered!!
 
Joined: Aug 2004
Posts: 100
Likes: 0
From: Sunny California
Rep Power: 0
Rx7_Fan has a little shameless behaviour in the past
From what i've heard, you can blow your speakers by not giving them enough power. Yes, sounds crazy but I believe its true.
Reply
Old Oct 4, 2004
  #7  
winnerpl's Avatar
Registered!!
iTrader: (1)
 
Joined: Apr 2004
Posts: 472
Likes: 0
From: nYc
Rep Power: 0
winnerpl is an unknown quantity at this point
Yup underpowering is just as bad if not worse than overpowering speakers
Reply
Old Oct 4, 2004
  #8  
J187's Avatar
 
Joined: Sep 2004
Posts: 4,559
Likes: 0
From: MA
Rep Power: 311
J187 is a glorious beacon of lightJ187 is a glorious beacon of lightJ187 is a glorious beacon of lightJ187 is a glorious beacon of lightJ187 is a glorious beacon of lightJ187 is a glorious beacon of lightJ187 is a glorious beacon of light
Originally Posted by brash
Generally speaking, you don't ever want to power any manufacturer's high end speakers off the head unit. It will just be a complete waste of money.
Nice way of putting it.

Time for a sticky dos and don'ts of basic car audio?
Reply
Old Oct 4, 2004
  #9  
Regularjoe's Avatar
Registered!!
 
Joined: Aug 2001
Posts: 960
Likes: 0
From: New York, US
Rep Power: 0
Regularjoe is on a distinguished road
Originally Posted by winnerpl
Yup underpowering is just as bad if not worse than overpowering speakers
Absolutely untrue. Underpowering a speaker does nothing too it. If it did everyone would blow their speakers the instant they turned the volume down.

Where too little power is a problem is when you try to turn it up too loud. Then when the big bass note comes along that needs 100 watts to play, the 60 watt deck barfs and puts out an ugly distorted and clipped signal. This in turn is what ends up hurting the speaker. The too little power problem is purely a function of the operator and the volume ****.

Add to that the other problem w/ deck power is that it isn't real power. Its 60 watts, at 5% distortion, across 50Hz-20kHz. So they get that big 60 watts number by rating it at a distortion level that is actually unlistenable and even then its not a full bandwidth signal.

Get an amp. Even a cheap 40 - 50 watt one. It will make a night an day difference. Most aftermarket amps will be 60 watts, at 0.05% distortion, across 20Hz-20kHz. So they operate on full bandwidth and with about 100x less distortion. IMO getting an amp is a no brainer and will make a huge difference.

Heres a good analogy. Your taking a trip on a road that you can drive 100 mph the whole way. You can choose to take a Civic or a Corvette. Obviosly you take the Corvette ..... The road is like the music. It varies, has peaks and dips, etc... The Civic is the HU, and the Corvette is an aftermarket amp. They can both do 100mph, but the Civic will be pushed to its limits the whole way and crap out on the hills. The HU is the same way. It can work, but it is going to be pushed to its limits 24/7.
Reply
Old Oct 4, 2004
  #10  
Regularjoe's Avatar
Registered!!
 
Joined: Aug 2001
Posts: 960
Likes: 0
From: New York, US
Rep Power: 0
Regularjoe is on a distinguished road
Originally Posted by brash
Generally speaking, you don't ever want to power any manufacturer's high end speakers off the head unit. It will just be a complete waste of money.
This is also very true. Due to the crossover and physical makeup, most components require more power and are less sensitivy than a standard coax speaker. Therefor off deck power a coaxial set may even be louder than the components. On an amp though most likely the components will smoke the coaxials. Plus without an amp you can never see what the speakers can really do.

Although a good set of coaxials on an amp can sound really really good. Most people don't realize just how good they can sound on an amp.

Honestly, IMO get the coaxials and amp them. You save some money and it will still sound great.
Reply
Old Oct 4, 2004
  #11  
PopcornPlaya's Avatar
Electric Boogaloo...
iTrader: (6)
 
Joined: Mar 2003
Posts: 4,457
Likes: 1
From: Want to play a game?
Rep Power: 329
PopcornPlaya is a splendid one to beholdPopcornPlaya is a splendid one to beholdPopcornPlaya is a splendid one to beholdPopcornPlaya is a splendid one to beholdPopcornPlaya is a splendid one to beholdPopcornPlaya is a splendid one to beholdPopcornPlaya is a splendid one to beholdPopcornPlaya is a splendid one to beholdPopcornPlaya is a splendid one to beholdPopcornPlaya is a splendid one to behold
If you're not gonna get an amp, keep the stockers, you won't notice much difference.
Reply
Old Oct 4, 2004
  #12  
Dishwasher's Avatar
Thread Starter
Supertastic Member.
 
Joined: Sep 2004
Posts: 689
Likes: 0
From: St. Louis
Rep Power: 0
Dishwasher is an unknown quantity at this point
roger, thanks for the awesome info everyone, looks like i'll be getting an amp then. I'm an audio newb so anyone got any ideas on what a good amp would be to power speakers? brands I should stay away from, I don't really wanna spend more than 200 on an amp, any chance of that? thanks a bunch.
Reply
Old Oct 4, 2004
  #13  
Regularjoe's Avatar
Registered!!
 
Joined: Aug 2001
Posts: 960
Likes: 0
From: New York, US
Rep Power: 0
Regularjoe is on a distinguished road
Any reputable amp in the range of 40-150 watts per channel will work just fine.

JBL
JL
MTX
Alpine
Rockford
Soundstream
Eclipse
Hifonics
Pioneer
Reply
Old Oct 4, 2004
  #14  
Dishwasher's Avatar
Thread Starter
Supertastic Member.
 
Joined: Sep 2004
Posts: 689
Likes: 0
From: St. Louis
Rep Power: 0
Dishwasher is an unknown quantity at this point
awesome thanks a bunch.
Reply
Old Oct 4, 2004
  #15  
fonto's Avatar
The LA Clipper
iTrader: (1)
 
Joined: Jul 2002
Posts: 5,539
Likes: 0
From: SoCal, California, US
Rep Power: 347
fonto is a name known to allfonto is a name known to allfonto is a name known to allfonto is a name known to allfonto is a name known to allfonto is a name known to allfonto is a name known to all
Perfects are some of the most power hungry components IMO...I would not run them without atleast 150 watts to get decently loud and to avoid clipping.
Reply
Old Oct 4, 2004
  #16  
J187's Avatar
 
Joined: Sep 2004
Posts: 4,559
Likes: 0
From: MA
Rep Power: 311
J187 is a glorious beacon of lightJ187 is a glorious beacon of lightJ187 is a glorious beacon of lightJ187 is a glorious beacon of lightJ187 is a glorious beacon of lightJ187 is a glorious beacon of lightJ187 is a glorious beacon of light
Fonto, true true true. Can I get an AMEN on the "at least" part as well?
Reply
Old Oct 4, 2004
  #17  
Rx7_Fan's Avatar
Registered!!
 
Joined: Aug 2004
Posts: 100
Likes: 0
From: Sunny California
Rep Power: 0
Rx7_Fan has a little shameless behaviour in the past
150W per channel? shiiet that's a lot, i'm thinking of getting the perfects myself, but I also think regular kappas are good. Should I shell out the extra money and get kappa perfects?

P.S.
I also heard that infinitiy reference components are good, which makes me even more confused.
Reply
Old Oct 4, 2004
  #18  
fonto's Avatar
The LA Clipper
iTrader: (1)
 
Joined: Jul 2002
Posts: 5,539
Likes: 0
From: SoCal, California, US
Rep Power: 347
fonto is a name known to allfonto is a name known to allfonto is a name known to allfonto is a name known to allfonto is a name known to allfonto is a name known to allfonto is a name known to all
Originally Posted by Rx7_Fan
150W per channel? shiiet that's a lot, i'm thinking of getting the perfects myself, but I also think regular kappas are good. Should I shell out the extra money and get kappa perfects?

P.S.
I also heard that infinitiy reference components are good, which makes me even more confused.
Well, they are inefficient speakers in my opinion...which means that you have to give them a lot of power for them to really shine. If you have a lot of bass, you will need to give them a lot of power for them to keep up with the bass...but I love the way the speakers sound! ...the perfects can also take A LOT of power.

Anyway, I will be selling my perfect 6.1 speakers if you are interested...they are in very good condition. Where in Cali are you from?
Reply
Related Topics
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
numbersguy
Electrical DIY
2
Sep 15, 2018 11:24 PM
user 84948
Air Conditioning
40
Jul 10, 2015 07:08 PM
cgavin1
Mechanical Problems/Vehicle Issues and Fix-it Forum
3
Jul 7, 2015 07:10 AM
Coronet 500
Mechanical Problems/Vehicle Issues and Fix-it Forum
2
Jul 3, 2015 04:45 PM
BabyLX
I.C.E. (Audio) & Electrical Upgrades
4
Nov 16, 2001 05:53 PM




All times are GMT -5. The time now is 05:49 AM.