Denon 3802 crossover question

Discussion in 'Archived Threads 2001-2004' started by EugeneM, Dec 6, 2001.

  1. EugeneM

    EugeneM Extra

    Dec 5, 2001
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    This is my current setup:

    2 Kef Q75 as mains


    Cabinet Design - 3-way, 3-driver + ABR bass reflex

    Crossover frequencies - 120Hz, 3.3kHz

    Frequency Responce +/-* 3dB - 36Hz - 20kHz (at 15 degrees gorizontally off axis)

    LF Corner - 6dB - 33Hz

    Sensitivity - 2.83v @ 1m - 91dB

    Maximum output - typical in room - 114dB

    Amplifier requirements - 10-200W

    Impedance - 6ohms

    1 Q95C as center (85Hz - 20kHz), 2 Q15 as surrounds (50 Hz - 20Khz)

    There is also home-made sub that will be replaced with another one, didn't make

    a decision on this one yet.

    This is driven by Technics SA-AX6(receiver) / AC-500D (DD/DTS decoder) combo.

    I mostly watch DVDs, player is Pioneer DV-440, connected to AC-500D through

    coax digital out. DV-440 doesn't have built-in DD/DTS decoder.

    I know my speakers will benefit from the better receiver, but 3 yrs ago only

    other option was Yamaha A1( ? model #), and it was way too expensive.

    Now I am considering replacing Technics combo with Denon 3802.

    In my search I found a post saying that 3802 crossover frequencies are not very

    useful - 80, 100, 120 Hz ( 4802 adds 40 and 60 Hz to this list)

    Now look at the specs of my speakers - mains go down to 36 Hz, surrounds -

    down to 50 (center doesnt go far down thou). The lowest possible crossover

    frequency on 3802 is 80 - way above 36 and quite above 50. Does it mean that

    3802 is not good enough for my speakers? I can't believe this is the case.

    A lot of people seem to have speakers of similar or better quality and give

    qood reviews for 3802

    4802 is about $1000 more, it costs as much as all my speakers together, and

    I dont think this is a proper price ratio (if that logic makes any sence at all. I mean

    you wouldn't drive $500 speakers with $1000 receiver, right?)

    I must be missing something.

    Please explain where I am wrong.
  2. EugeneM

    EugeneM Extra

    Dec 5, 2001
    Likes Received:
    Mark, please explain how to connect ICBM to 3802 to my DVD player. From my point of view - there is no way.

    My phone call to Outlaw just confirmed it. Their tech

    support guy seemed knowledgeable.
  3. jeff lam

    jeff lam Screenwriter

    Jun 4, 2001
    Likes Received:
    San Jose, CA
    Real Name:
    Jeff Lam
    If you're running a sub, you won't need to go that low with the main's anyway. This will give you much better midrange clarity. 80Hz is fine.
  4. Scott Merryfield

    Scott Merryfield Executive Producer

    Dec 16, 1998
    Likes Received:
    From my research, both the Denon 3802 and 4802 force you to set the same crossover frequency for all channels -- mains, surrounds and center. Since your center speaker only goes down to 85Hz, you will need to set the crossover frequency to 100Hz, regardless of whether you use a 3802 or 4802. You could try an 80Hz crossover, as the rolloff from 85Hz on the center channel may not be noticable (listen and let your ears be the judge).

    I have a similar dilemma with my B&W 600 Series setup. I would like to set the crossover for the mains to either 40 or 60Hz, the surrounds to 60Hz and the center to 60 or 80Hz. I am considering upgrading my 3-year old Sony 50ES receiver, but have not found a receiver with the bass management I'm looking for.

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