Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 6 of 6
  1. #1

    Member Sales Rating: (2)

    Join Date
    Jan 2008
    Location
    McMinnville, OR
    Posts
    2,019

    Question Confused about power req for my system

    I need some advice on a new receiver. I currently have an Onkyo 605 powering 2 RTi10's, a CSi3, and 2 FXiA4's. I'm fairly certain all of those are underpowered at the moment, and I had a couple questions.

    1: If they are underpowered, does that mean that the receiver is constantly running at full load? If so, does that put extra wear and tear on the receiver?

    2: I've always been confused by the disparity between manufacturers with how they rate their "wpc". Could someone help me out with what my speakers need to be at "full power", and what receivers to look at?

    3: My son likes to climb on the back of my couch, stand up, and poke the "bubble" at the middle of the woofers in my FXiA4's. So far only the tweeters show any damage, but i'm wondering how the sound is affected by dimples and creases in that "bubble". And also, how to repair damage done to them (if possible).

    Thanks for any help you can give!
    Quote Originally Posted by MrNightly View Post
    "Dr Dunn admitted that his research could also be interpreted as evidence that women are shallower than men. He said: "Let's face it - there's evidence to support it."
    Quote Originally Posted by mystik610 View Post
    Best Buy is for people who don't know any better. Magnolia is for people who don't know any better and have more money to spend.
    My System:


    Blu-Ray player: Samsung BD-P1600
    TV: SAMSUNG UN55B7000 55" 1080p LED HDTV

  2. #2

    Member Sales Rating: (1)

    Join Date
    Dec 2008
    Location
    Pittsburgh PA
    Posts
    1,318

    Default

    Answer to question 1 is yes. Overdriving the amp or hitting the clipping point will damage the amp and your speakers. IMO you are better off to have an amp that is larger than the max rating on the speakers because you will most likely never reach the peak of the speakers and just because you have a 200 watt amp does not mean you have to use all 200 watts. 10 watts of power can be pretty loud.
    Sunfire TGP, Sunfire Cinema Grand, Sunfire 300~2 (2), Sunfire True Sub (2),Carver ALS Platinum, Carver AL III, TFM-55, C-19, C-9, TX-8, SDA-490t, SDA-390t

  3. #3

    Member Sales Rating: (6)

    Join Date
    Sep 2003
    Location
    Arizona
    Posts
    16,493

    Default

    Quote Originally Posted by ryanjoachim View Post
    3: My son likes to climb on the back of my couch, stand up, and poke the "bubble" at the middle of the woofers in my FXiA4's. So far only the tweeters show any damage, but i'm wondering how the sound is affected by dimples and creases in that "bubble". And also, how to repair damage done to them (if possible).

    Thanks for any help you can give!
    The dust caps being dented generally doesn't affect anything, try putting the end of a piece of scotch tape on the dust cap, then pull gently. With some finesse, you should be able to pop them back out.

    Transport: Oppo BDP-103/USB HDD (flac)
    DAC/Preamp: Benchmark DAC/PRE
    Power Amp: Parasound HCA-1500A
    Speakers: Harbeth Compact 7ES-3 Monitor
    Cables: Kimber Hero/8TC; DH Labs D-75

  4. #4

    Member Sales Rating: (6)

    Join Date
    Sep 2003
    Location
    Arizona
    Posts
    16,493

    Default

    Quote Originally Posted by ryanjoachim View Post

    2: I've always been confused by the disparity between manufacturers with how they rate their "wpc". Could someone help me out with what my speakers need to be at "full power", and what receivers to look at?

    Thanks for any help you can give!
    This is a "ya gets what ya pays for question." Those HT in a box, you can bet their ratings are wrong. RMS/Watts per channel (RMS; Root Mean Square) technically is 78% of the peak power waveform, running continously (and never dropping below this level) in the true technical nature of the term, at the rated maximum distortion. However, the term is only meaningful to reputable audio equipment manufacturers. Even then it's usually measured at a single frequency (1kHz is the norm) with a perfectly resistive load of 8/4 ohms (which speakers never are).

    Bottom line, go with good names; Pioneer Elite, Sony ES, NAD, Marantz, etc, etc,...
    Last edited by steveinaz; 12-02-2009 at 05:19 PM.

    Transport: Oppo BDP-103/USB HDD (flac)
    DAC/Preamp: Benchmark DAC/PRE
    Power Amp: Parasound HCA-1500A
    Speakers: Harbeth Compact 7ES-3 Monitor
    Cables: Kimber Hero/8TC; DH Labs D-75

  5. #5

    Member Sales Rating: (2)

    Join Date
    Jan 2008
    Location
    McMinnville, OR
    Posts
    2,019

    Default

    Quote Originally Posted by steveinaz View Post
    This is a "ya gets what ya pays for question." Those HT in a box, you can bet their ratings are wrong. RMS/Watts per channel (RMS; Root Mean Square) technically is 78% of the peak power waveform, running continously (and never dropping below this level) in the true technical nature of the term, at the rated maximum distortion. However, the term is only meaningful to reputable audio equipment manufacturers. Even then it's usually measured at a single frequency (1kHz is the norm) with a perfectly resistive load of 8/4 ohms (which speakers never are).

    Bottom line, go with good names; Pioneer Elite, Sony ES, NAD, Marantz, etc, etc,...
    And of course, all out of my usual budget range. I'm going to start working on my wife to let me get a new receiver, but will probably have to stay around 300-350 max.
    Quote Originally Posted by MrNightly View Post
    "Dr Dunn admitted that his research could also be interpreted as evidence that women are shallower than men. He said: "Let's face it - there's evidence to support it."
    Quote Originally Posted by mystik610 View Post
    Best Buy is for people who don't know any better. Magnolia is for people who don't know any better and have more money to spend.
    My System:


    Blu-Ray player: Samsung BD-P1600
    TV: SAMSUNG UN55B7000 55" 1080p LED HDTV

  6. #6

    Member Sales Rating: (6)

    Join Date
    Sep 2003
    Location
    Arizona
    Posts
    16,493

    Default

    If you go used Ryan (See the MONDO Marantz in the flea market...HINT, HINT).....Dane is practically giving that monster away.

    Transport: Oppo BDP-103/USB HDD (flac)
    DAC/Preamp: Benchmark DAC/PRE
    Power Amp: Parasound HCA-1500A
    Speakers: Harbeth Compact 7ES-3 Monitor
    Cables: Kimber Hero/8TC; DH Labs D-75

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. Will an HK745 power a 7.1 Lsi system
    By Chris Lyon in forum Forum Testing Area
    Replies: 4
    Last Post: 01-12-2007, 06:05 PM
  2. Will an HK745 power a 7.1 Lsi system
    By Chris Lyon in forum Electronics
    Replies: 1
    Last Post: 01-12-2007, 02:42 PM
  3. Amp selection to power LSI system
    By radoboy in forum Electronics
    Replies: 28
    Last Post: 10-11-2006, 12:49 PM
  4. How much power for LSi system?
    By bdz1 in forum Speakers
    Replies: 13
    Last Post: 09-25-2006, 01:28 PM
  5. confused about power ratings
    By dylan in forum Car Audio & Electronics
    Replies: 3
    Last Post: 04-29-2003, 12:27 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts