Phase / Polarity

Hello all,

Just a query / clarification. When I have run the auto set up mic for various AV receivers, it always tells some of my speakers are out of phase / polarity. Checked all the wiring with red going to red and black going to black at the back of the AVR - checked the speakers and all good there too, until I delved a little deeper.

Did the speaker check with a 1.5 AA battery to check how the speaker cone reacts to both the positive cable to the positive of the battery and negative to the negative. Checked all speakers and found the LSiM707's are fine, BUT the LSiM 706C and LSim702 fx when connected the correct way, the driver goes in on the test, not out like it should with the battery connected. So the 3 speakers in question, internally are wired in reverse!

Correct me if I'm wrong, but when connected correctly the drivers should come out and not go in? I have since plugged the black wiring into the red and vice versa on these 3 speakers and will check phase and polarity again, as now these 3 should now be in phase. I'm also expecting a richer sound as well.

Anyway, anyone else with these speakers might want to run a check as well. Let me know if anyone else has had a similar experience.
Regards - Gaz from the land of Oz

Main
Denon - AVR-7200WA
Emotiva - XPA-2 (driving LSiM707s)
Cambridge Audio - Azur 851C - CXUHD
Polk Audio - Cherry LSiM707 - LSiM706c - LSiM fx - LSi7 - PSW505
Foxtel - iQ4
Belkin - Pure AV PF40

Living Room
Denon - AVR-3808 - DVD-3930
Cambridge Audio - Azur 752B
Panasonic - UBD900
Polk Audio - LsiM703

Comments

  • vmaxervmaxer Posts: 4,697
    Pio Elete Pro 520
    Panamax 5400-EX
    Sunfire TGP 5
    Micro Seiki DD-40 - Lyra-Dorian and Denon DL-160
    PS Audio GCPH phono pre
    Sunfire CG 200 X 5
    Sunfire CG Sig 405 X 5
    OPPO BDP-83 SE
    SDA SRS 1.2TL Sonicaps and Mills
    Ctr CS1000p
    Sur - FX1000 x 4
    SUB - SVS PB2-Plus

    Workkout room:
    Sony Bravia XBR- 32-Inch 1080p
    Onkyo TX-DS898
    GFA 555
    Yamaha DVD-S1800BL/SACD
    Ft - SDA 1C

    Not being used:
    RTi 38's -4
    RT55i's - 2
    RT25i's -2, using other 2 in shop
    LSI 15's
    CSi40
    PSW 404
  • VXR8VXR8 Posts: 276
    Thank you both for the link - but shouldn't the drivers still go out when connected correctly and not in?
    Regards - Gaz from the land of Oz

    Main
    Denon - AVR-7200WA
    Emotiva - XPA-2 (driving LSiM707s)
    Cambridge Audio - Azur 851C - CXUHD
    Polk Audio - Cherry LSiM707 - LSiM706c - LSiM fx - LSi7 - PSW505
    Foxtel - iQ4
    Belkin - Pure AV PF40

    Living Room
    Denon - AVR-3808 - DVD-3930
    Cambridge Audio - Azur 752B
    Panasonic - UBD900
    Polk Audio - LsiM703
  • vmaxervmaxer Posts: 4,697
    VXR8 wrote: »
    Thank you both for the link - but shouldn't the drivers still go out when connected correctly and not in?

    Have you read the entire thread? Seems it’s by design.
    Pio Elete Pro 520
    Panamax 5400-EX
    Sunfire TGP 5
    Micro Seiki DD-40 - Lyra-Dorian and Denon DL-160
    PS Audio GCPH phono pre
    Sunfire CG 200 X 5
    Sunfire CG Sig 405 X 5
    OPPO BDP-83 SE
    SDA SRS 1.2TL Sonicaps and Mills
    Ctr CS1000p
    Sur - FX1000 x 4
    SUB - SVS PB2-Plus

    Workkout room:
    Sony Bravia XBR- 32-Inch 1080p
    Onkyo TX-DS898
    GFA 555
    Yamaha DVD-S1800BL/SACD
    Ft - SDA 1C

    Not being used:
    RTi 38's -4
    RT55i's - 2
    RT25i's -2, using other 2 in shop
    LSI 15's
    CSi40
    PSW 404
  • mrlorenmrloren Posts: 2,291
    edited February 8
    When I run audyssey I get a out of phase error on my left and center. I swapped the L/R and still got the out of phase on the left so it was audyssey not the speaker.

    With my S60's Audyssey would set the sub out of phase flip the sub to 180 and there is a ton of bass. Now with the LSiM the sub is best at 0 but I got the warning hit ignore and rocked on
    VXR8 wrote: »
    Thank you both for the link - but shouldn't the drivers still go out when connected correctly and not in?

    mine rocks great
    When I was a kid my parents told me to turn it down. Now I'm an adult and my kids tell me to turn it down.

    Family Room:
    Samsung UN75RU710DFXZA,
    Denon AVR-X4400H, Emotiva XPA3 GEN3
    Oppo BDP-93,Sony UBP-X800BM, WD Live HUB.
    Main: Polk LsiM 705
    Center: Polk LSiM 704C
    Front High/Rear High In-Ceiling Polk 80F/X RT
    Surrounds: Polk S15
    Sub: HSU VTF3-MK5

    Bed Room;
    Marantz SR5010, BDP-S270
    Main: Polk Signature S20
    Center: Polk Signature S35
    Rear: Polk R15
    Sub: HSU STF-2

    Working Warehouse;
    Sony 2100ES AVR, Sony DVP-NS3100ES for disc
    Cerwin Vega AT-12 (blasters) Advent Prodigy (listening)
    Old sony 12" Sub
    Mini tower PC with 400GB of music
  • VXR8VXR8 Posts: 276
    Yes I did - if it is normal for the driver to go in, then that's fine, but the LSIm707 drivers go outward, which is what would be the norm as I know it to be (right or wrong). Checked the LSim703's and their drivers go in too.

    If they are all correct and are designed that way, then I'll leave them and I'm not concerned about the auto calibration, just want the speaker drivers working as they should be.
    Regards - Gaz from the land of Oz

    Main
    Denon - AVR-7200WA
    Emotiva - XPA-2 (driving LSiM707s)
    Cambridge Audio - Azur 851C - CXUHD
    Polk Audio - Cherry LSiM707 - LSiM706c - LSiM fx - LSi7 - PSW505
    Foxtel - iQ4
    Belkin - Pure AV PF40

    Living Room
    Denon - AVR-3808 - DVD-3930
    Cambridge Audio - Azur 752B
    Panasonic - UBD900
    Polk Audio - LsiM703
  • mantismantis Posts: 15,903
    Mistakes from Speaker companies can happen. They maybe by design but also maybe a mistake. I had our Sonance Rep come in bragging about this new Speaker bar they made. I listened to it and told him it's out of phase. He took it back and the engineer found a mis wire internally on the crossover.
    When a speaker is out of phase it sounds thin when it's in phase it sound full.
    Dan
    My personal quest is to save to world of bad audio, one thread at a time.
  • VXR8VXR8 Posts: 276
    edited February 8
    Thanks everyone for your replies / input.

    Just to support what you are saying Dan, I swapped the terminals around on my LSiM703’s this morning, had them connected as per specification and listened closely (tested them yesterday and drivers were going IN). Swapped them around so black to red and vice versa so the driver is coming out - so much more depth and not sounding thin like they did correctly connected. Thought they sounded OK before and still had bass but not like now.

    Whether they are ‘designed’ that way or not, I’m sticking with connecting them in reverse. Always thought the LSiM 702’s sounded a little thin too, so keeping them and the LSiM706 in reverse as well so the drivers come out. Strange the LSiM 707’s are correct though, with drivers coming out when connected correctly. Makes me question if it is a manufacturing fault with all bar the 707’s. Would love a tech from Polk to clarify.
    Regards - Gaz from the land of Oz

    Main
    Denon - AVR-7200WA
    Emotiva - XPA-2 (driving LSiM707s)
    Cambridge Audio - Azur 851C - CXUHD
    Polk Audio - Cherry LSiM707 - LSiM706c - LSiM fx - LSi7 - PSW505
    Foxtel - iQ4
    Belkin - Pure AV PF40

    Living Room
    Denon - AVR-3808 - DVD-3930
    Cambridge Audio - Azur 752B
    Panasonic - UBD900
    Polk Audio - LsiM703
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