How Far Apart are the Serial Numbers on 'Matched' Pairs of Monitors?

Are the serial numbers always in a pattern; Identical, separated by a certain number or....??

How do you know if your speakers were sold as a matched set?

Thank you, Lee

Comments

  • Emlyn
    Emlyn Posts: 3,019
    Out of all the dozens of Polk speakers I've had, including old SDA models, I don't recall ever seeing consecutive serial numbers on a pair.

    It's a marketing feature on some brands like Spendor that closely match crossover components and veneer for each pair. For most speakers, I'm not sure it really matters as long as the speakers leave the factory reasonably close to each other.
    1. Polk LSiM-707, LSiM-704C, LSiM-702FX; Dual SVS SB2000 subwoofers; Marantz SR7011 receiver; Parasound A31 and A23 amps; Oppo 205; Sony 65" 4K TV; FIOS; PS Audio Power Plant Premier; MIT S2 cables
    2. JM Labs Electra 920.1; Parasound JC2 and JC5; Sony HAP-Z1ES; Marantz SA8004 SACD; Music Hall MMF7 and Acoustech phono pre; PS Audio P1000; MIT S1 Cables
    3. Polk LSiM703; Anthem Pre-2L SE; Parasound A21; Sony 48" 4K TV; Wyred4Sound DAC 2; Oppo 203; Squeezebox Touch; PS Audio Power Director 4.7; MIT S3 cables
  • skrol
    skrol Posts: 3,033
    Funny, I think all the ones I've had were consecutive.
    Stan

    Main 2ch:
    Polk LSi15 (DB840 upgrade), Parasound: P/LD-1100, HCA-1000A; Denon: DVD-2910, DRM-800A; Monster HTS3600-MKII, Grado SR-225i; Technics SL-J2, Parasound PPH-100.

    HT:
    Marantz SR7010, Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S4, CS250, PSW110 , Marantz UD5005, Pioneer PL-530, Panasonic TC-P42S60

    Other stuff:
    Denon: DRA-835R, AVR-888, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A, 5B, TSi100, RM7, PSW10 (DXi104 upgrade); Pioneer: CT-6R; Onkyo CP-1046F; Ortofon OM5E, Marantz: PM5004, CD5004, CDR-615; Parasound C/PT-600, HCA-800ii, Sony CDP-650ESD, Technics SA 5070, B&W DM601
  • BlueFox
    BlueFox Posts: 14,414
    Since there is no law regulating serial numbers then they could use a random number generator to pick the serial number. Or a drunk, stoned employee could do it. Or they could sequentially assign serial numbers as the speakers are manufactured, but how they are boxed and shipped is random. No one knows. One of life’s many mysteries.
    Lumin X1 file player
    Sony XA-5400ES SACD
    Pass XP-22 pre, X600.5 amps
    Magico S5 MKII Mcast Rose speakers, SPOD spikes

    Shunyata Triton v3/Typhon QR on source, Denali 2000 (2) on amps
    Shunyata Sigma XLR analog ICs, Sigma speaker cables
    Shunyata Sigma HC (2), Sigma Analog, Sigma Digital, Z Anaconda (3) power cables

    Mapleshade Samson V.3 four shelf solid maple rack, Micropoint brass footers
    Three 20 amp circuits.
  • audioluvr
    audioluvr Posts: 3,311
    I have a sequential serial number set of slippers that I absolutely love!
    Cambridge Audio 851N Streamer/DAC
    Belles 21A Pre modded with Mundorf Supreme caps
    B&K M200 Sonata monoblocks refreshed and upgraded
    Belles 350A Reference modded with Mundorf Supreme caps
    Polk SDA 1C's modded / 1000Va Dreadnaught
    Wireworld Silver Eclipse IC's and speaker cables


    There is about a 5% genetic difference between apes and men …but that difference is the difference between throwing your own poo when you are annoyed …and Einstein, Shakespeare and Miss January.

    by Dr. Sardonicus
  • msg
    msg Posts: 6,449
    What if the right one were manufactured before the left? Would you wear them sequentially? I'm not sure which I could tolerate best.
    I disabled signatures.
  • skrol
    skrol Posts: 3,033
    It depends if you hear right to left or left to right.
    Stan

    Main 2ch:
    Polk LSi15 (DB840 upgrade), Parasound: P/LD-1100, HCA-1000A; Denon: DVD-2910, DRM-800A; Monster HTS3600-MKII, Grado SR-225i; Technics SL-J2, Parasound PPH-100.

    HT:
    Marantz SR7010, Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S4, CS250, PSW110 , Marantz UD5005, Pioneer PL-530, Panasonic TC-P42S60

    Other stuff:
    Denon: DRA-835R, AVR-888, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A, 5B, TSi100, RM7, PSW10 (DXi104 upgrade); Pioneer: CT-6R; Onkyo CP-1046F; Ortofon OM5E, Marantz: PM5004, CD5004, CDR-615; Parasound C/PT-600, HCA-800ii, Sony CDP-650ESD, Technics SA 5070, B&W DM601
  • rohol
    rohol Posts: 2
    Ha! I appreciate it. Apparently no need to worry about buying single speakers if they're 'close enough'.

    Thanks!
  • TennMan
    TennMan Posts: 1,141
    When they loaded a freight truck with monitor 10s for distribution do you think they tried to keep all the boxes paired up so the serial numbers would be sold consecutively? I think the answer to that question would be no.
    • SDA 2BTL · Sonicaps · Mills resistors · RDO-198s · New gaskets · H-nuts · Erse inductors · BH5 · Dynamat
    • Crossover upgrades by westmassguy
    • Marantz 1504 AVR (front speaker pre-outs to Adcom 555)
    • Adcom GFA-555 amp · Upgrades & speaker protection added by OldmanSRS
    • Pioneer DV-610AV DVD/CD player
    • SDA CRS+ · Hidden away in the closet
  • pitdogg2
    pitdogg2 Posts: 18,546
    The only thing that matters is you get a LEFT and RIGHT for the SDA's.

    I will say this
    My factory 2.3tl crossovers were vastly different. When I first put them in place there was something "off" about them. When I removed them to recap and place new inductors on the new boards I spotted it right away. They had way different caps on each board. That explained right away why they just didn't image worth a hoot. Now they just disappear in the room, sound seems like it is coming out of the wall. It made good sense to me why the original owner used them for a few years and stuck them into a closet for 25yrs.
  • odcics2
    odcics2 Posts: 20
    My Monitor 10s are pretty close. itgtnjfb3sva.jpeg
    g26xac0ymk5r.jpeg
  • Emlyn
    Emlyn Posts: 3,019
    On 56039, it looks to me like someone broke the law and did remove that stub then felt guilty and stapled it back on. :#
    1. Polk LSiM-707, LSiM-704C, LSiM-702FX; Dual SVS SB2000 subwoofers; Marantz SR7011 receiver; Parasound A31 and A23 amps; Oppo 205; Sony 65" 4K TV; FIOS; PS Audio Power Plant Premier; MIT S2 cables
    2. JM Labs Electra 920.1; Parasound JC2 and JC5; Sony HAP-Z1ES; Marantz SA8004 SACD; Music Hall MMF7 and Acoustech phono pre; PS Audio P1000; MIT S1 Cables
    3. Polk LSiM703; Anthem Pre-2L SE; Parasound A21; Sony 48" 4K TV; Wyred4Sound DAC 2; Oppo 203; Squeezebox Touch; PS Audio Power Director 4.7; MIT S3 cables
  • odcics2
    odcics2 Posts: 20
    Appears to be factory staples!! I agree, a Polklaw was broken!
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