so...why are the LSi speakers made 4 instead of 8 ohms?

SlowcarIX
SlowcarIX Posts: 887
edited April 2008 in Speakers
just wondering...
my 7.(1x4) HT setup
TV - Mitsubishi WD-65734
AVP / Amp - Onkyo PR-SC885P / D-Sonic 2500-7
Front - Emerald Physics CS2
Center - JTR Triple 12LF
Surround L/R / Back - Polk RTi4 / Polk FXi A4
Sub - 4 X Hsu ULS15 playing nearfield
DVD / CDP - Sony PS3/40GB / Sony SCD-XA9000ES
Belkin PURE AV PF60 / UPS
Buttkicker

http://www.polkaudio.com/forums/showthread.php?t=60612
Post edited by SlowcarIX on
«1

Comments

  • bykes
    bykes Posts: 132
    edited April 2008
    Good question. I too would like to know.

    My guess would be a marketing thing.
  • be83663
    be83663 Posts: 192
    edited April 2008
    Could it be a conspiracy theory between 4-ohm speaker manufacturers and amplifier manufacturers, to force you to buy an amplifier by owning 4-ohm speakers, because you can't use a receiver with 4-ohm speakers? :D
  • ben62670
    ben62670 Posts: 15,969
    edited April 2008
    I'm going to kick back, and enjoy watching the answers on this one for a while.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
  • Early B.
    Early B. Posts: 7,900
    edited April 2008
    Bad business decision, that's all.
    HT/2-channel Rig: Sony 50” LCD TV; Toshiba HD-A2 DVD player; Emotiva LMC-1 pre/pro; Rogue Audio M-120 monoblocks (modded); Placette RVC; Emotiva LPA-1 amp; Bada HD-22 tube CDP (modded); VMPS Tower II SE (fronts); DIY Clearwave Dynamic 4CC (center); Wharfedale Opus Tri-Surrounds (rear); and VMPS 215 sub

    "God grooves with tubes."
  • ben62670
    ben62670 Posts: 15,969
    edited April 2008
    Early B. wrote: »
    Bad business decision, that's all.

    Bingo
    That didn't take long.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
  • Ron Temple
    Ron Temple Posts: 3,212
    edited April 2008
    How about after months or years of R&D, they couldn't make it any better at this pricepoint without compromising the sound quality. Turns out 4 ohms nominal is what it is.

    Combo rig:

    Onkyo NR1007 pre-pro, Carver TFM 45(fronts), Carver TFM 35 (surrounds)
    SDA 1C, CS400i, SDA 2B
    PB13Ultra RO
    BW Silvers
    Oppo BDP-83SE
  • cmy330go
    cmy330go Posts: 2,341
    edited April 2008
    HT
    Mits WD-65737, DirecTV, Oppo DV-970HD, XBOX ONE, Yamaha RX-A1030, Parasound Halo A23, Rotel RB-985, Music Hall MMF-7, Parasound PPH-100, LSi-15, LSi-C, LSi-FX, LSi-7, PSW-1000, Monster HTS2600

    2 CH
    Parasound Halo P3, Parasound Halo A21, Sutherland Ph.D, VPI Classic 3 w/ 3D arm & Soundsmith Aida Cartridge, Arcam CD72T, B&W 802 S3, Monster HTS2500,
  • F1nut
    F1nut Posts: 50,809
    edited April 2008
    They were originally designed to use a ribbon tweeter, but it had reliability issues, hence the Vifa, which is a 4 ohm tweeter. So, to answer the OP question, it has to do with the choice of drivers and crossover design.

    Bad business decision? I don't agree. Poor education of the folks selling them and poor control of the associated gear they are demoed with? Yeah.

    You have to keep in mind that Polk made these as their current flagship speakers and therefore I believe, aimed at folks who aren't going to buy just an AVR to power them.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • ben62670
    ben62670 Posts: 15,969
    edited April 2008
    F1nut wrote: »
    Bad business decision? I don't agree. Poor education of the folks selling them and poor control of the associated gear they are demoed with? Yeah.

    You have to keep in mind that Polk made these as their current flagship speakers and therefore I believe, aimed at folks who aren't going to buy just an AVR to power them.

    The reason I think it was a bad business decision is because the sellers are never going to be educated like they needed to be. It is just not going to happen at a typical store. Even the some of the upper crust chain stores that I have seen them at were not properly driving them.

    Its would be another thing if Polk actually had a store that represented them properly, but that is near mission impossible. I never knew about the original design calling for a ribbon tweeter, and I am assuming that Polk had the 4ohm woofers already contracted for that design. When Polk releases an updated LSI line, or a replacement for the LSI line I hope they make them more consumer friendly. A six or eight ohm driver can easily be produced to sound just as good as a four ohm. I prefer 4 ohms myself, but I know what I am getting into.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
  • F1nut
    F1nut Posts: 50,809
    edited April 2008
    I see it as the responsibility of the sales rep(s) to educate the folks doing the selling. If they do their job, there shouldn't be a problem with mis-matched gear. If they aren't doing their job, find someone who will. Other audio companies do it everyday.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • ben62670
    ben62670 Posts: 15,969
    edited April 2008
    F1nut wrote: »
    I see it as the responsibility of the sales rep(s) to educate the folks doing the selling. If they do their job, there shouldn't be a problem with mis-matched gear. If they aren't doing their job, find someone who will. Other audio companies do it everyday.

    I whole heartedly agree with you, but it just isn't going to happen when most LSI sales are at the big stores being sold by guys who care more about getting their commission than whether the customer is going to be satisfied. If they are going to sell them in a big store atmosphere they need to make them more compatible. For me I wouldn't care if they dipped into 2ohms in the impedance curve, but it just isn't practical for a mass produce speaker:(
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
  • Early B.
    Early B. Posts: 7,900
    edited April 2008
    F1nut wrote: »
    I see it as the responsibility of the sales rep(s) to educate the folks doing the selling. If they do their job, there shouldn't be a problem with mis-matched gear. If they aren't doing their job, find someone who will. Other audio companies do it everyday.

    Lack of knowledge of Polk's customer base is the reason it was a poor business decision. If sales reps did their job, there probably would have been fewer sales of the Lsi series. Try telling a customer that buying a particular type of speakers also requires a separate amp to get the best sound.

    Polk probably could have a made a few more bucks on the Lsi series if they were 8 ohms. I'm sure some people got home, hooked up their Lsi's to a receiver or low powered amp, said they sucked, and returned them without ever knowing about the 4 ohm issue. Then if they found out after the purchase that their Lsi's needed more power, they're pissed.
    HT/2-channel Rig: Sony 50” LCD TV; Toshiba HD-A2 DVD player; Emotiva LMC-1 pre/pro; Rogue Audio M-120 monoblocks (modded); Placette RVC; Emotiva LPA-1 amp; Bada HD-22 tube CDP (modded); VMPS Tower II SE (fronts); DIY Clearwave Dynamic 4CC (center); Wharfedale Opus Tri-Surrounds (rear); and VMPS 215 sub

    "God grooves with tubes."
  • heiney9
    heiney9 Posts: 25,217
    edited April 2008
    cmy330go wrote: »

    Yep, If people, mostly noobs, would use the search feature. Seems there is a wave of repeat questions lately. Justin, can we just do away with the search button no one seems to use it. Really is starting to get annoying and I've stopped answering most of these types of simplistic repeat questions.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
  • maximillian
    maximillian Posts: 2,144
    edited April 2008
    Some people may simply get frustrated searching for shorter words. The search feature doesn't work for the term '4 Ohms' unless you put it in quotes. For example, I found the above link doing a search for "4 Ohms". However, if one search it without quotes or did a search for "4 ohm" then nothing is returned.
  • maximillian
    maximillian Posts: 2,144
    edited April 2008
    I should also mention that Google can also be used for searches on the forum. Try the following:

    4 ohms site:polkaudio.com
  • maximillian
    maximillian Posts: 2,144
    edited April 2008
    Hah!. Smile killed my colon and "p". Sorry.
  • heiney9
    heiney9 Posts: 25,217
    edited April 2008
    F1nut wrote: »
    I see it as the responsibility of the sales rep(s) to educate the folks doing the selling. If they do their job, there shouldn't be a problem with mis-matched gear. If they aren't doing their job, find someone who will. Other audio companies do it everyday.

    When I was selling in this hobby many years ago this was the norm. I throughly enjoyed it. Unfortunately the industry doesn't support the kind of training and put in the effort to make sure the sales people are knowledgeable. It's up to how motivated the sales person is to educate themselves or just have a passion for the hobby.

    Specialty stores still follow this model but there are becoming fewer and fewer of these types of establishments. We don't have a single mid-high end audio store here anymore. The closest place to a real audio store is the Bose Home Theater based store. I no longer have any desire to work in this hobby.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
  • heiney9
    heiney9 Posts: 25,217
    edited April 2008
    ben62670 wrote: »
    The reason I think it was a bad business decision is because the sellers are never going to be educated like they needed to be. It is just not going to happen at a typical store. Even the some of the upper crust chain stores that I have seen them at were not properly driving them.

    Its would be another thing if Polk actually had a store that represented them properly, but that is near mission impossible. I never knew about the original design calling for a ribbon tweeter, and I am assuming that Polk had the 4ohm woofers already contracted for that design. When Polk releases an updated LSI line, or a replacement for the LSI line I hope they make them more consumer friendly. A six or eight ohm driver can easily be produced to sound just as good as a four ohm. I prefer 4 ohms myself, but I know what I am getting into.

    They shouldn't change a thing. I see no issues with the LSi line.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
  • cmy330go
    cmy330go Posts: 2,341
    edited April 2008
    Hah!. Smile killed my colon and "p"......

    Yet doctors claim smiling is good for your health.:rolleyes:






    :D
    HT
    Mits WD-65737, DirecTV, Oppo DV-970HD, XBOX ONE, Yamaha RX-A1030, Parasound Halo A23, Rotel RB-985, Music Hall MMF-7, Parasound PPH-100, LSi-15, LSi-C, LSi-FX, LSi-7, PSW-1000, Monster HTS2600

    2 CH
    Parasound Halo P3, Parasound Halo A21, Sutherland Ph.D, VPI Classic 3 w/ 3D arm & Soundsmith Aida Cartridge, Arcam CD72T, B&W 802 S3, Monster HTS2500,
  • treitz3
    treitz3 Posts: 19,238
    edited April 2008
    Perhaps a sticky of frequently asked forum questions answered as short, precise and educational as possible with added links [using the words within the answer as links] so that the noobie can get his/her question answered correctly and forum members have a direct link to provide access to answer their question?

    Example?

    POST; How much power is recommended for an LSi speaker?

    ANSWER; Look here dumbass...<link>

    And on the link, direct them to the sticky. We just have to make a list of the most frequently asked questions and add a link on the sticky to the education link that apparently most newbies miss.
    ~ In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence. ~
  • treitz3
    treitz3 Posts: 19,238
    edited April 2008
    .....Or maybe a tutorial on how to get the most out of the search feature. It's not the most user friendly.
    ~ In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence. ~
  • nikolas812
    nikolas812 Posts: 2,915
    edited April 2008
    I was under the impression that a 4ohm speaker sounded different than a 8ohm speaker.

    Am I wrong?

    I thought the reason for the 4ohm load was for a more veiled sound or less bright like there other home theater speakers?
  • nikolas812
    nikolas812 Posts: 2,915
    edited April 2008
    treitz3 wrote: »
    .....Or maybe a tutorial on how to get the most out of the search feature. It's not the most user friendly.


    BINGO!

    I've been here for a year and it still frustrates me. I can manage but its still irritating from time to time.
  • dkg999
    dkg999 Posts: 5,647
    edited April 2008
    In the stores where LSi's are now sold, even hooked up to a less than optimal AVR, in my opinion the LSi's still seem to hold their own compared to what else is available in the listening room. I've been at Tweeter when they are demo'ing LSi's compared to the Focal, ML, etc. that are also in the listening room. The LSi's hold their own nicely. Do the LSi's sound anywhere close to their true potential in that environment, absolutely not! Are the LSi's compromised to any more extent than the other speakers being compared to, I don't think so.

    Personally, I think we put too much emphasis on the whole AVR vs amp vs how many watts issue. Someone who invests in a decent AVR and LSi speakers for HT is going to at some point get curious and add a separate amp, and pizzow!, they now get new speakers as a bonus :cool: And if they don't get curious and add a separate amp, they still have a damn good system :)
    DKG999
    HT System: LSi9, LSiCx2, LSiFX, LSi7, SVS 20-39 PC+, B&K 507.s2 AVR, B&K Ref 125.2, Tripplite LCR-2400, Cambridge 650BD, Signal Cable PC/SC, BJC IC, Samsung 55" LED

    Music System: Magnepan 1.6QR, SVS SB12+, ARC pre, Parasound HCA1500 vertically bi-amped, Jolida CDP, Pro-Ject RM5.1SE TT, Pro-Ject TubeBox SE phono pre, SBT, PS Audio DLIII DAC
  • SlowcarIX
    SlowcarIX Posts: 887
    edited April 2008
    heiney9 wrote: »
    Yep, If people, mostly noobs, would use the search feature. Seems there is a wave of repeat questions lately. Justin, can we just do away with the search button no one seems to use it. Really is starting to get annoying and I've stopped answering most of these types of simplistic repeat questions.
    H9

    you always have the option of

    " <- " or " x " if you do not like feel like responding or it annoys you.
    my 7.(1x4) HT setup
    TV - Mitsubishi WD-65734
    AVP / Amp - Onkyo PR-SC885P / D-Sonic 2500-7
    Front - Emerald Physics CS2
    Center - JTR Triple 12LF
    Surround L/R / Back - Polk RTi4 / Polk FXi A4
    Sub - 4 X Hsu ULS15 playing nearfield
    DVD / CDP - Sony PS3/40GB / Sony SCD-XA9000ES
    Belkin PURE AV PF60 / UPS
    Buttkicker

    http://www.polkaudio.com/forums/showthread.php?t=60612
  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited April 2008
    I think a 4 ohm load was chosen to gain back some efficiency rating lacking in their design.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
  • heiney9
    heiney9 Posts: 25,217
    edited April 2008
    treitz3 wrote: »
    .....Or maybe a tutorial on how to get the most out of the search feature. It's not the most user friendly.

    That is true, but you can do a broad search and then get your read on. When I need something or am looking for something sometimes I have to wade through 5-6 or 12 pages of threads to locate it.

    Laziness and instant gratification prevail many times. I don't mind discussing things that have been discussed before, but they should be more specific.

    Questions like:

    I need an amp what's the best one?

    Why are the LSi's 4 ohm?

    Should I buy this receiver?

    Which sound better RTi 8's or RTi 10's?

    These types of questions and there are hundreds more have been beaten to death. Plus, if one can't give more information about what you are trying to accomplish, what you already have, what type of room you have, what kind of budget, etc., etc., etc.,. You might as well **** in the wind.

    They are senseless questions without a little context to be able to help someone out. That's my POV.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
  • Early B.
    Early B. Posts: 7,900
    edited April 2008
    nikolas812 wrote: »
    I was under the impression that a 4ohm speaker sounded different than a 8ohm speaker.

    Am I wrong?

    Yes, you're wrong.
    HT/2-channel Rig: Sony 50” LCD TV; Toshiba HD-A2 DVD player; Emotiva LMC-1 pre/pro; Rogue Audio M-120 monoblocks (modded); Placette RVC; Emotiva LPA-1 amp; Bada HD-22 tube CDP (modded); VMPS Tower II SE (fronts); DIY Clearwave Dynamic 4CC (center); Wharfedale Opus Tri-Surrounds (rear); and VMPS 215 sub

    "God grooves with tubes."
  • Early B.
    Early B. Posts: 7,900
    edited April 2008
    treitz3 wrote: »
    Perhaps a sticky of frequently asked forum questions answered as short, precise and educational as possible with added links [using the words within the answer as links] so that the noobie can get his/her question answered correctly and forum members have a direct link to provide access to answer their question?

    Example?

    POST; How much power is recommended for an LSi speaker?

    ANSWER; Look here dumbass...<link>

    And on the link, direct them to the sticky. We just have to make a list of the most frequently asked questions and add a link on the sticky to the education link that apparently most newbies miss.

    Sounds good, but part of our responsibility as forum veterans is to answer the same questions over and over again to newbies.

    By the way, this issue of answering the same questions has been discussed on this forum a million times. Why didn't you use the search feature?:p


    That being said, I think we should put together an FAQ section and encourage all new members to read it thoroughly.
    HT/2-channel Rig: Sony 50” LCD TV; Toshiba HD-A2 DVD player; Emotiva LMC-1 pre/pro; Rogue Audio M-120 monoblocks (modded); Placette RVC; Emotiva LPA-1 amp; Bada HD-22 tube CDP (modded); VMPS Tower II SE (fronts); DIY Clearwave Dynamic 4CC (center); Wharfedale Opus Tri-Surrounds (rear); and VMPS 215 sub

    "God grooves with tubes."
  • Roland P
    Roland P Posts: 33
    edited April 2008
    They should have made them active :p
    My HT - JVC DLA-HD2K - Rotel rsx-1065 - Polkaudio LSi9, LSiFx, LSiC - REL Storm III