Amp Wattage Overkill?

Discussion in 'Archived Threads 2001-2004' started by DanielSmi, Jul 25, 2002.

  1. DanielSmi

    DanielSmi Second Unit

    Joined:
    Mar 20, 2002
    Messages:
    455
    Likes Received:
    0
    Trophy Points:
    0
    Hopefully soon I will be purchasing a pair of Klipsch Rf-5's. When I do that shortly after I will bi-amp them I'm considering getting the Parasound 2205 or 1205. Would I be overkill to get the 2205 because then I would have 440 watts for each speaker and I think my ears would explode and I would bleed to death before I ever used that much when running 99dB sensitive speakers. So should just save my money and get 1205A for about a grand instead? Almost all the specs are about the same, what do you think?

    Daniel Smith
     
  2. DanaA

    DanaA Screenwriter

    Joined:
    Nov 21, 2001
    Messages:
    1,843
    Likes Received:
    1
    Trophy Points:
    0
    This is just my opinion, but I think the 1205, or even the 855 would work fine with the Klipsch reference speakers you're considering getting. I have the 1205 mated with RB-5's and I can't turn the knob up anywhere near the top, although I like my music VERY loud. The 1205A would drive the RF-5's to over 120 decibels. That's loud, very, very loud.
     
  3. Chu Gai

    Chu Gai Lead Actor

    Joined:
    Jun 29, 2001
    Messages:
    7,270
    Likes Received:
    1
    Trophy Points:
    0
    Save the grand.
     
  4. Phil Mays

    Phil Mays Second Unit

    Joined:
    May 20, 2002
    Messages:
    361
    Likes Received:
    0
    Trophy Points:
    0
    If money is no object then by all means get the 2205. I say this because if you purchase another pair of speakers then you can use that amp to power them as well. With the Klipsch you still will not be able to stand it much past 70% anyway.
    Just a question, one does not hear about people getting the RF-5's often as they are so close to the RF-3's in performance but priced way higher. If it were me, and its not[​IMG] , I would purchase the 1205 amp and put the rest into the RF-7's. I really do not think you will be sorry.
    Phil
     
  5. DanielSmi

    DanielSmi Second Unit

    Joined:
    Mar 20, 2002
    Messages:
    455
    Likes Received:
    0
    Trophy Points:
    0
    Phil,

    I don't have I big room and the RF-7 with dual 10's would be way too much bass for my room.

    The stats on the 1205 is 5x140 and the 2205 5x220. I would bi-amp the fronts s I'd have at least 240 per channel for the fronts with the 1205 and 440x2 if I go with 2205 then I would use the extra channel for the center speaker.

    Daniel Smith
     
  6. Yogi

    Yogi Screenwriter

    Joined:
    Jul 25, 2002
    Messages:
    1,741
    Likes Received:
    0
    Trophy Points:
    0
    Bigger more powerful amps perform better than lower powered amps even at low volumes. Better control, better transient response and greater reserves for those explosions. Speakers can take almost five times their rated power for short durations so dont worry about blowing speakers. Just get the most powerful amp you can afford. I believe there is no such thing as overkill when it comes to amps.
     
  7. Michael Mathius

    Michael Mathius Supporting Actor

    Joined:
    Nov 12, 2000
    Messages:
    955
    Likes Received:
    1
    Trophy Points:
    110
    Ok, I'm currently using the Parasound 1205 (140x5) to push Energy Veritas 2.4Fronts ,2.0Center and 2.0Rear surrounds. A Denon 3802 does double duty as a pre/pro and push my Energy Ecores 2 rears. I'm thinking of getting a Parasound 1500 (205x2)to push the 2.4's and then have the 1205 push the surrounds. Would that be overkill in my family room 13x16x8?
    My system sounds great now but like most here I think there is always room for improvement. I can get the Parasound HCA 1500A for $400.[​IMG]
     
  8. Michael R Price

    Michael R Price Screenwriter

    Joined:
    Jul 22, 2001
    Messages:
    1,591
    Likes Received:
    0
    Trophy Points:
    0
    It's not the maximum power that matters, since you could blow yourself away with those speakers and a 10 watt amp. But there may be a difference in sound at any volume, between the different Parasound models. Don't worry about the power.
     
  9. Yogi

    Yogi Screenwriter

    Joined:
    Jul 25, 2002
    Messages:
    1,741
    Likes Received:
    0
    Trophy Points:
    0
    Michael, I think you'd be happy with the 1500 running your mains not somuch because of its higher power but because separate 2 channel amps are so much better for the mains compared to a multichannel amp. Usually dedicated 2 channel amps have separate power supplies and are built better (generally speaking) giving you better resolution, imaging and impact. So I'd say go for it esp. since the price is such a bargain.
     
  10. GordonL

    GordonL Supporting Actor

    Joined:
    Feb 14, 2000
    Messages:
    771
    Likes Received:
    0
    Trophy Points:
    0
    Use this to figure out how much wattage you need:
    http://www.myhometheater.homestead.c...alculator.html
    Keep in mind that THX reference levels (peak) is 105db at the listening position. This is very loud. Each 3db gain requires a doubling of power. Daniel, in your case, assuming 16ft listening position, the 1205 with your speakers can achieve 110db. That is way higher than you could ever stand for short amounts of time - roughly equivalent to a jet flyover at 300m according to the chart at that site. I would say the 1205 has more than sufficient headroom, wouldn't you agree?
     
  11. Yogi

    Yogi Screenwriter

    Joined:
    Jul 25, 2002
    Messages:
    1,741
    Likes Received:
    0
    Trophy Points:
    0
     
  12. NickSP

    NickSP Supporting Actor

    Joined:
    May 8, 2001
    Messages:
    569
    Likes Received:
    0
    Trophy Points:
    0
    I am running a 80W x 5 channel amp and am powering 90db speakers and have never seemed to run out of power. The amp just keeps on producing more and more without clipping. My ears give out every time before the amp does when I am trying to see how loud it can go. Whether you are running 90db or 99db speakers, the Parasound 1205 at it's power ratings will not even break a sweat. Save the cash and get DVDs or something.
     
  13. GordonL

    GordonL Supporting Actor

    Joined:
    Feb 14, 2000
    Messages:
    771
    Likes Received:
    0
    Trophy Points:
    0
    Yogi,
    Thanks for the correction. I edited my post with the correct information.
     

Share This Page