PCM Down Conversion

Discussion in 'AV Receivers' started by Michael Cawcutt, Jan 19, 2004.

  1. Michael Cawcutt

    Jan 14, 2004
    Likes Received:
    Hello all!

    htf.com [​IMG] has been great for me so far, have another quick question to be answered. My dvd player (Panasonic DVD-S35) has the option for PCM Down Conversion. It has the ability to convert the default output sampling frequency of 96kHz/88.2kHz to 48kHz/44.1kHz. My new Onkyo 601 is on it's way as we speak, and looking at the details and specs of the receiver, I am not "educated" enough to know if this receiever is capable of processing the 48kHz/44.1kHz frequency.

    What does this conversion allow or do? When the sampling rate changes does this improve sound quality? Below are the specs for the Onkyo TX-SR601 from crutchfield. I didn't get it from crutchfield but here are the specs for people who will be able to answer my question [​IMG]

    Key Features:

    85 watts x 6 into 8 ohms (20-20,000 Hz) at 0.08% THD
    Dolby Digital EX, DTS-ES and Pro Logic II decoding
    DTS Neo:6 modes
    dual 32-bit processors
    Wide Range Amplifier Technology
    dual-room/dual-source audio (powered and preamp stereo output for 2nd room)
    composite-to-S-video conversion
    192kHz/24-bit DACs
    learning/multibrand remote
    CinemaFILTER (adjusts tonal characteristics of soundtracks recorded for movie theaters for a home theater setting)
    component video switching: 2 in, 1 out (50MHz bandwidth)
    digital inputs: 3 optical (including 1 front-panel), 1 coaxial
    optical digital output
    2 audio, 5 A/V (including 5 S-video, 1 front-panel, and one 5.1-channel) inputs
    on-screen display (requires TV with direct video input)
    40 AM/FM presets
    banana plug-compatible binding posts for all speakers
    aluminum front panel
    oversized power transformer, filter capacitors and heat sinks
    no phono input
    17-1/8"W x 6-15/16"H x 17-9/16"D
    warranty: 2 years
  2. Michael Cawcutt

    Jan 14, 2004
    Likes Received:
  3. David Judah

    David Judah Screenwriter

    Feb 11, 1999
    Likes Received:
    All receivers can handle 44.1/48 kHz for CD and DVD respectively. You would set the DVD player to downconvert if the receiver could not handle 88.2/96 kHz. Most all receivers nowdays can handle those sampling rates, but it was an issue 4-5 years ago.

    The new receiver should have no problem with the DVD's downconversion set to "No". In practice, there's not much source material above 48 kHz that would be coming into the receiver through a digital input anyways.


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