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

RMS Questions

Thread Tools
 
Search this Thread
 
Old Jun 9, 2004 | 04:53 AM
  #1  
GotLift's Avatar
GotLift
Thread Starter
|
Elder User
Joined: Feb 2004
Posts: 717
Likes: 0
RMS Questions

I'm looking at a pair of Pioneer TS-C160R component speakers for the front. They are rated for 60W RMS with 250W peak. What kind of amp should I use to run them? Should I avoid going higher than 60W or is it OK to run more power to them? My head unit is going to be a Pioneer deh p6500 50x4. Thanks...
 
Reply
Old Jun 9, 2004 | 05:35 AM
  #2  
Bob Ayers's Avatar
Bob Ayers
Postmaster
Joined: Jan 2003
Posts: 4,417
Likes: 3
From: Durham, NC
You should not run anything higher than 60W RMS continuous to speakers rated at 60W RMS. If you do, the voice coils will over heat, and warp.....
 
Reply
Old Jun 9, 2004 | 09:52 AM
  #3  
beartracks's Avatar
beartracks
Lead Driver
25 Year Member
Photogenic
Joined: Nov 2000
Posts: 6,639
Likes: 349
From: Albuquerque
40 to 50 watt rms amp per channel would be about the sweet spot.
 
Reply
Old Jun 9, 2004 | 05:32 PM
  #4  
LinearPower's Avatar
LinearPower
Senior User
Joined: Jan 2004
Posts: 269
Likes: 0
From: Central Ohio
Originally Posted by GotLift
I'm looking at a pair of Pioneer TS-C160R component speakers for the front. They are rated for 60W RMS with 250W peak. What kind of amp should I use to run them? Should I avoid going higher than 60W or is it OK to run more power to them? My head unit is going to be a Pioneer deh p6500 50x4. Thanks...

Many experts believe you can never have too much power. System design and user common sense go a long way. I know of a competitor who had 6 bridged Linear Power TO3 amps capable of over 1000 watts each running into six separate speakers, none of which was rated higher than 100 watts RMS. Were those amps producing 1000 watts just because they were capable of doing so? Of course not. Was the system more dynamic than if he had used 6 bridged Jensen amps capable of 100 watts each. Absolutely. There is a lot more to the equation than looking at RMS numbers, although it can be very important in the average everyday system for someone who likes to crank it up all the time.
 
Reply
Old Jun 9, 2004 | 10:05 PM
  #5  
Twisted Ranger's Avatar
Twisted Ranger
Senior User
Joined: Apr 2004
Posts: 142
Likes: 0
Pioneer also builds their speaker's capable of handling more than RMS continuously. I wouldn't put anymore than 100 watts continous, but 60 to 75 should be more than loud enough. If you're amplifying, deck power doesn't matter. I would amp those. Deck power won't be enough. Even if the deck claims 50 or 60 watts, that's peak power. RMS is 20-30.
 
Reply
Old Jun 10, 2004 | 10:16 PM
  #6  
GotLift's Avatar
GotLift
Thread Starter
|
Elder User
Joined: Feb 2004
Posts: 717
Likes: 0
I'm looking at a Pioneer GM-X524. It's 4X50 or 2X120. Does that mean it will put out 50 or 120? Or is that peak only? If I win it, I'll try it out once I get the speakers. If it isn't enough, maybe I'll run it on the rear speakers.

Which amp would you run?
 
Reply
Old Jun 11, 2004 | 03:03 AM
  #7  
kens64's Avatar
kens64
Posting Guru
Joined: Jun 2002
Posts: 1,214
Likes: 0
From: Rio Rancho USA
Originally Posted by GotLift
I'm looking at a Pioneer GM-X524. It's 4X50 or 2X120. Does that mean it will put out 50 or 120? Or is that peak only? If I win it, I'll try it out once I get the speakers. If it isn't enough, maybe I'll run it on the rear speakers.

Which amp would you run?
It means you can run 4 channels at 50w each, or bridge into 2 channels to get 120w. Those are the RMS ratings. IMO, bridge 2 channels to each speaker and it should be fine.
 
Reply
Old Jun 11, 2004 | 11:35 AM
  #8  
stealth1's Avatar
stealth1
Senior User
Joined: Apr 2003
Posts: 324
Likes: 0
From: TX
My speakers are 50 rms and my amp is 75 rms. I have my gains turned back a tad. I've always been told a amp performs better and cooler not at max gain. Mine sounds awesome and have had zero problems.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-1

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-2

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-3

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-4

Every 2026 Ford Engine Explained

 Brett Foote
story-5

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-6

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-7

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-8

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

 Joe Kucinski
story-9

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
Old Jun 11, 2004 | 04:32 PM
  #9  
GotLift's Avatar
GotLift
Thread Starter
|
Elder User
Joined: Feb 2004
Posts: 717
Likes: 0
Originally Posted by kens64
It means you can run 4 channels at 50w each, or bridge into 2 channels to get 120w. Those are the RMS ratings. IMO, bridge 2 channels to each speaker and it should be fine.

Thanks Ken, I should have rephrased that question. I knew it was 50X4 and 120X2, I just wasn't sure if those were peak or RMS ratings. Thanks for all the information guys. I just installed my Pioneer head unit and it is amazing the difference that that alone makes. I can't wait to get better speakers and some real power! If I win the 4 ch. amp, I'll hook it up 50X4 to the front and rear speakers to see how that sounds. If it's good then I'll start looking for subs.

Thanks for the education
 
Reply
Old Jun 11, 2004 | 07:52 PM
  #10  
LinearPower's Avatar
LinearPower
Senior User
Joined: Jan 2004
Posts: 269
Likes: 0
From: Central Ohio
Originally Posted by stealth1
My speakers are 50 rms and my amp is 75 rms. I have my gains turned back a tad. I've always been told a amp performs better and cooler not at max gain. Mine sounds awesome and have had zero problems.
The only reason for an adjustable gain control is to allow you to MATCH it to a head unit's output voltage. Your amp will perform best when the gain is set where it should be in relation to the HU. With a given amp, max gain may be close to perfect for certain HUs, whereas 1/2 may be near perfect for other HUs. There are ways to set the gain properly, without guesswork.
 
Reply
Old Jun 11, 2004 | 08:03 PM
  #11  
kens64's Avatar
kens64
Posting Guru
Joined: Jun 2002
Posts: 1,214
Likes: 0
From: Rio Rancho USA
Originally Posted by stealth1
I've always been told a amp performs better and cooler not at max gain.
Exactly. The gains are meant to be set to match up with your decks output voltage. Turning the gain all the way up just overdrives the amp, it doesnt make it any louder.
 
Reply
Old Jun 12, 2004 | 02:40 PM
  #12  
LinearPower's Avatar
LinearPower
Senior User
Joined: Jan 2004
Posts: 269
Likes: 0
From: Central Ohio
Originally Posted by kens64
Exactly. The gains are meant to be set to match up with your decks output voltage. Turning the gain all the way up just overdrives the amp, it doesnt make it any louder.
Turning the gain all the way up will not necessarily overdrive the amp if that's what the amp needs from the particular HU being used. You cannot make a general statement like that because each combination will be different. Your first sentence is correct. That's why your second statement is incorrect. Both remarks can't hold true when generalizing. Again, certain amp/HU combos may need the amp's gain be at or near max to MATCH properly.
 
Reply
Old Jun 12, 2004 | 04:17 PM
  #13  
kens64's Avatar
kens64
Posting Guru
Joined: Jun 2002
Posts: 1,214
Likes: 0
From: Rio Rancho USA
Youre right, I totaly mistyped that last statement. I didnt mean for all decks, I meant for systems that didnt require the gain to be turned all the way up.
 
Reply
Old Jun 14, 2004 | 05:10 PM
  #14  
Firewiz's Avatar
Firewiz
Senior User
Joined: Jun 2004
Posts: 176
Likes: 0
From: Rochester, NY
Couple of tips...

Too little power does more damage than too much power

To double db's (volume) you need 10 times the power!
 
Reply
Old Jun 14, 2004 | 05:23 PM
  #15  
Bob Ayers's Avatar
Bob Ayers
Postmaster
Joined: Jan 2003
Posts: 4,417
Likes: 3
From: Durham, NC
Originally Posted by Firewiz
Couple of tips...

Too little power does more damage than too much power
In most cases, this is not true!! It depends on the amp output DC component when it goes into distortion!!! DC
can destroy a speaker voice coil very quickly!!
 
Reply



All times are GMT -5. The time now is 07:55 AM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
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-9
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