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  1. #1

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    Default Center channel for LSIM703

    I have recently bought a pair of LSIM703's. Excellent speakers. My next upgrade is a new center channel. According to the Polk website, LSIM704c is the proper center channel. However, I can not find any good deals on that speaker but I can find good deals on the LSIM706c. Would I get proper timbre matching with the 706 or should I just wait patiently for a 704?

  2. #2

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    I don't own that particular speaker, but the 706 is the same series and would be a perfect timber match.

  3. #3

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    I'd say the 706 is more of a match than the 704 is.

  4. #4

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    Leroy,

    A couple of questions;

    1. Why would you think the 706 is a better match?
    2. During movies, would the 706 "overpower" the 703s? As a result, all I would hear is the center channel.

  5. #5

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    Quote Originally Posted by leroyjr1 View Post
    I'd say the 706 is more of a match than the 704 is.
    I agree.

    I've listened to both, and the 706 is the better speaker for sure. Both will match perfectly, but the 706 has better bass.

    I'll sell you my 704 if you want it.
    2-Channel:

    Source 1: PC
    Source 2: Rega Apollo CDP
    USB > SPDIF Converter: Stello U3
    DAC: Audio GD NFB-7
    Preamp: Audio Research LS-15
    Power Amp: BAT VK-500
    Speakers: Magnepan 3.7's

    HT:

    Source 1: HTPC
    Source 2: Oppo 103
    Pre/Pro: Marantz av8003
    Power Amp: Rotel RMB-1095
    Fronts: LSiM-705's
    Center: LSiM-704c
    Surrounds: LSiM-702's
    Subs: Dual SVS PC12-NSD's

  6. #6

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    Quote Originally Posted by Etelvina View Post
    Leroy,

    A couple of questions;

    1. Why would you think the 706 is a better match?
    because it uses the same woofer as the 703's.

    2. During movies, would the 706 "overpower" the 703s? As a result, all I would hear is the center channel.
    No, that does not make sense on many levels. First off, a large speaker is not inherently louder than than a smaller speaker; in fact, a larger speaker is likely to be less sensitive, so it would be quieter given the same amplification; however, whether it's louder of softer is completely moot because you control each speaker's volume (channel level) with the AVR.
    cheers
    2-Channel:

    Source 1: PC
    Source 2: Rega Apollo CDP
    USB > SPDIF Converter: Stello U3
    DAC: Audio GD NFB-7
    Preamp: Audio Research LS-15
    Power Amp: BAT VK-500
    Speakers: Magnepan 3.7's

    HT:

    Source 1: HTPC
    Source 2: Oppo 103
    Pre/Pro: Marantz av8003
    Power Amp: Rotel RMB-1095
    Fronts: LSiM-705's
    Center: LSiM-704c
    Surrounds: LSiM-702's
    Subs: Dual SVS PC12-NSD's

  7. #7

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    Quote Originally Posted by Etelvina View Post
    Leroy,

    A couple of questions;

    1. Why would you think the 706 is a better match?
    2. During movies, would the 706 "overpower" the 703s? As a result, all I would hear is the center channel.
    Both the 703's and 706 center has the same drivers while the 704's are smaller. No it will not over power the 703's. Once calibrated they'll blend perfectly.

  8. #8

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    Another 703!

  9. #9

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    Both the 704c and 706c will blend perfectly. The nice thing about the 704 is they didn't cut out the mid range driver like most companies do on their smaller center offerings For all practical purposes the 704 is just as good as the 706. If you can find a deal on the 706 from an authorized dealer though go for it. Make sure you have the room, the 706 is a very large and heavy speaker!

  10. #10

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    Quote Originally Posted by Lan077 View Post
    The nice thing about the 704 is they didn't cut out the mid range driver like most companies do on their smaller center offerings
    That is it right there. The tweeter and mdrange are the same drivers and that is the major area of concern. All three of these are from the same series and have the same efficiency rating...88 dB...for the whole LSiM line! They all just have lower -3dB down points. With the DSP power of most systems these days combined with the work that manufacturers put into making all their same series speaker work better together....these are really discussions from yesteryear. With the LSiM series Polk has made it easy! 704 vs. 706 is splitting hairs...very fine ones! If you have room for the BIG one...get the BIG one...if not get the smaller one!




    Quote Originally Posted by Polk Audio
    "Timbre-Matched Series

    The LSiM main, center and surround loudspeakers are timbre-matched for a seamless speaker to speaker blend, so vital for achieving the incredible realism and enveloping surround effects found in the best multi-channel systems."
    Last edited by WLDock; 04-06-2013 at 04:13 PM.
    FAMILY ROOM
    TV - Mitsubishi WD-73734 73" DLP 1080P | AVR - Onkyo TX-NR3008 | Source - Sony PS3 Slim 320GB | Front - PolkAudio RT3000p | Center -PolkAudio CS400i | Surround - PolkAudio F/X1000 | Sub - DIY Stereo Integrity HT 15 | Sub Amp - Behringer EUROPOWER EP2500

    2 Ch Dreaming...hoping to purchase, build someday???
    OPPO 105 | Cary or Rogue Audio tube Preamp | Parasound HALO A21 amp | DIY Mini Statements towers

  11. #11

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    Quote Originally Posted by Loud & Clear View Post
    Another 703!
    That would be my thought.

    Any reason (besides aesthetics), not to use the 703 as a center?

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