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

Vist our Online Store
+ Reply to Thread
Results 1 to 3 of 3
  1. #1

    Member Sales Rating: (0)

    Join Date
    Nov 2007
    Location
    Wilkes-Barre area Pa
    Posts
    50

    Default yamaha onkyo question

    I recently upgraded my hts receiver from a yamaha htr-5440 80wattsx5

    http://www.yamaha.com/yec/products/p...6&CTID=5000400

    to a onkyo sr604 90 watts by 7

    http://www.us.onkyo.com/model.cfm?m=...class=Receiver

    but although the onkyo output is rated much higher, 630 watts vs 400 watts, the old yamaha was physically louder. Has anyone else experienced this? or can anyone explain why?
    thanks in advance
    Jeff

  2. #2

    Member Sales Rating: (6)

    Join Date
    Jul 2001
    Location
    Bay area, California
    Posts
    2,067

    Default power

    Peffy03-

    First, you are only talking 10 watts per channel increase over the yamaha, which isn't much more juice.

    Second, you now have 7 channels grasping for power instead of 5, so even though there is a small increase in power you have more hungry speakers drawing it. This will be more noticeable in high volume scenes that tax the dynamic reserves of the amp, unless your receiver has 7 separate amps under the hood.
    Also check the distortion ratings of both receivers, higher distortion sounds louder, but really it's just harder on the ears.

    -Luc
    "I'm sure it's better than it sounds."

    Mark Twains' response, when asked what he
    thought of Wagners music.

  3. #3

    Member Sales Rating: (1)

    Join Date
    Jul 2001
    Location
    Mobile, AL
    Posts
    3,269

    Default

    Power levels aren't a simple apples-to-apples thing. Different companies rate different ways. For instance, some companies rate with all channels driven... some with only two. Some rate with 20Hz-20kHz signals... some with only 1kHz. Also, some rate at different distortion levels. For instance, the Yamaha you cited was rated at 65 watts 20Hz-20kHz at 0.06% total harmonic distortion... whereas the Onkyo is rated at 90 watts 20Hz-20kHz at 0.08% THD. The Yamaha's 80 watt rating is at 1kHz, not full range.

    Despite this difference, the two receivers only differ by 10 watts dynamic power at 8 ohms (95 vs 105), meaning they're likely very similar in overall power. Also, while I can't speak to how Yamaha rates, I can tell you that Onkyo rates power with only 2 channels driven. I would imagine that Yamaha's 65 watt spec may be the more honest 5-channels driven method, which explains why the dynamic power is so similar between the two.

    That said, there shouldn't be a massive difference in the levels at which these two receivers can drive your speakers. One issue you may be having is that non-THX Onkyo receivers use a logarithmic non-linear volume scale, where increases in volume are higher from number to number as the numbers increase. This means that you won't get appreciable output from the receiver until you're in the upper range of numbers. When I had my Onkyo 603, normal listening levels were in the 60-75 range for me with the system calibrated for reference level around 84 on the volume.

Thread Information

Users Browsing this Thread

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

     

Similar Threads

  1. yamaha 3800 or onkyo 905
    By jparker82 in forum Electronics
    Replies: 11
    Last Post: 11-18-2007, 10:30 AM
  2. Onkyo Vs. Yamaha
    By frdranger in forum Electronics
    Replies: 19
    Last Post: 12-24-2006, 07:58 AM
  3. SOLD FS: Adcom/ Onkyo/ Pioneer/ Yamaha
    By dorokusai in forum For Sale (FS) Classifieds
    Replies: 17
    Last Post: 06-24-2006, 08:08 AM
  4. Onkyo Vs Yamaha
    By gadgetman in forum Electronics
    Replies: 21
    Last Post: 10-10-2005, 04:07 PM
  5. Onkyo vs HK vs Denon vs Yamaha vs ?
    By organ in forum Electronics
    Replies: 20
    Last Post: 08-03-2005, 08:50 AM

Posting Permissions

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