Notices
Audio & Video Systems, Navigation, Satellite Radio & Mobile Electronics
Sponsored by:
Sponsored by: Innova

Check This Amp Out

Thread Tools
 
Search this Thread
 
Old Jan 17, 2009 | 07:40 AM
  #1  
bowdog's Avatar
bowdog
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 174
Likes: 0
From: Western Pennsylvania
Check This Amp Out

I am no car stereo buff and I need help. I recently purchased an Alpine head which has the following power:

CD receiver with built-in amplifier (18 watts RMS CEA-2006/50 peak x 4 channels)

I also put four of the following Polk Audio speakers in my doors and kick panel:

db571

5 X 7 coaxial loudspeaker
Incredible Sound/Affordable Price
<TABLE><TBODY><TR><TD class=specsMinor vAlign=top>Overall Frequency Response</TD><TD vAlign=top>52Hz-22kHz</TD></TR><TR><TD class=specsMinor vAlign=top>Nominal Impedance</TD><TD vAlign=top>4 ohms</TD></TR><TR><TD class=specsMinor vAlign=top>Power Handling (continuous)</TD><TD vAlign=top>60 w</TD></TR><TR><TD class=specsMinor vAlign=top>Power Handling (peak)</TD><TD vAlign=top>180 w</TD></TR><TR><TD class=specsMinor vAlign=top>Efficiency</TD><TD vAlign=top>93 dB</TD></TR></TBODY></TABLE>

Alpine has come out with this power booster amp to increase the head unit power:

Alpine Electronics of America, Inc. - KTP-445

My question is, Do you guys think this will make the speakers sound any better. The sound is awesome now but I think they will sound unbelievable with more power to them. I dont want subs and a high priced amp, I am on a budget. Help me you car stereo buffs?

Thanks
Bowdog
 
Reply
Old Jan 17, 2009 | 05:31 PM
  #2  
LxMan1's Avatar
LxMan1
Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
Would have gotten better sound out of the correct sized 6x8 speakers in the doors.
 
Reply
Old Jan 17, 2009 | 05:53 PM
  #3  
ReAX's Avatar
ReAX
Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
A bit better. You can pick up 1.5dB or there about. Your still only talking about 27 watts RMS, so your only pushing the speakers to half of their power handling. I would go ahead and buy a 4x50 to 4x75 watt amplifier and set it up correctly. Your going to gain about 6dB this route (I think I calculated that right but it could be 9dB).

The size of the speakers will not make that much difference. The power going to them will. Your HU is putting out 18w and the speakers can work up to 60w. The closer to max power, the more dB they will produce without distortion.
 
Reply
Old Jan 20, 2009 | 05:48 PM
  #4  
bowdog's Avatar
bowdog
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 174
Likes: 0
From: Western Pennsylvania
Could anybody recommend a brand of amp....it would greatly help if you could provide a link to what you are recommending. Keep in mind that I am on a limited budget and would really like to keep it as low as possible.

Does anybody have one for sale?


Help me out.

Bowdog
 
Reply
Old Jan 20, 2009 | 05:58 PM
  #5  
ReAX's Avatar
ReAX
Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
This one was recommended to me by one of my instructors at Installer's Institute, Alpine Electronics of America, Inc. - PDX-4.100
 
Reply
Old Jan 21, 2009 | 07:26 AM
  #6  
bowdog's Avatar
bowdog
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 174
Likes: 0
From: Western Pennsylvania
That amp is way out of my price range....anything alot cheaper that would be ok?
 
Reply
Old Jan 22, 2009 | 08:05 PM
  #7  
Don S.'s Avatar
Don S.
More Turbo
Joined: Aug 2007
Posts: 555
Likes: 2
From: Washington state
Originally Posted by bowdog
That amp is way out of my price range....anything alot cheaper that would be ok?

How about?
JBL GTO504 Amp: Multi-channel

Or
JBL 4-CHANNEL CAR AMPLIFIER SILVER & BLACK AMP 2008 MDL - eBay (item 220347909085 end time Jan-29-09 12:47:00 PST)
 
Reply




All times are GMT -5. The time now is 02:41 PM.

story-0
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-1
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-2
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-3
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-4
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-5
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-6
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-7
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-8
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-9
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE