Question about A/V reciever and Lsi15s

kolyan2k
kolyan2k Posts: 259
edited May 2006 in Speakers
i am thinking about buying LSi15s, however, the only reciever i currently have, is my roomate's 5hitty Techwood (Kenwood with Technics i believe) the specs are: 100watt per channel (5 channels) @ 8 ohms. will this be alright for now? it will not damage the speakers, right?

thanks
Post edited by kolyan2k on
«1

Comments

  • aaharvel
    aaharvel Posts: 4,489
    edited May 2006
    kolyan2k wrote:
    i am thinking about buying LSi15s, however, the only reciever i currently have, is my roomate's 5hitty Techwood (Kenwood with Technics i believe) the specs are: 100watt per channel (5 channels) @ 8 ohms. will this be alright for now?

    thanks
    absolutely not. ditch the kenwood and get separates. or at the very least a receiver from adcom, nad or b&k.
    H/K Signature 2.1+235
    Jungson MagicBoat II
    Revel Performa M-20
    Velodyne cht-10 sub
    Rega P1 Turntable

    "People working at Polk Audio must sit around the office and just laugh their balls off reading many of these comments." -Lush
  • cfrizz
    cfrizz Posts: 13,415
    edited May 2006
    Do a search here on the forum for LSI's & receivers. You will get your answer very quickly why this is a bad idea.
    Marantz AV-7705 PrePro, Classé 5 channel 200wpc Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony XBR-49X800E TV, Polk S60 Main Speakers, Polk ES30 Center Channel, Polk S15 Surround Speakers SVS SB12-NSD x2
  • ohskigod
    ohskigod Posts: 6,502
    edited May 2006
    oh dear!!!!!!!!!!!!!
    underpowering = far more dangerous than overpowering.
    Living Room 2 Channel -
    Schiit SYS Passive Pre. Jolida CD player. Songbird streamer. California Audio Labs Sigma II DAC, DIY 300as1/a1 Ice modules Class D amp. LSi15 with MM842 woofer upgrade, Nordost Blue Heaven and Unity interconnects.

    Upstairs 2 Channel Rig -
    Prometheus Ref. TVC passive pre, SAE A-205 Amp, Wiim pro streamer and Topping E50 DAC, California Audio Labs DX1 CD player, Von Schweikert VR3.5 speakers.

    Studio Rig - Scarlett 18i20(Gen3) DAW, Mac Mini, Aiyma A07 Max (BridgedX2), Totem Mites
  • kolyan2k
    kolyan2k Posts: 259
    edited May 2006
    i don't know much about audio......why underpowering? it's 100 watt per channel.

    and another thing is this: if i get 2 mono blocks from outlaw, do i still need a reviever to have a stereo setup?
  • tonyb
    tonyb Posts: 33,008
    edited May 2006
    OH BOY. Dude,not enough power is a bad,bad,bad idea.100 watts of a AVR
    is totally different than 100 watts from a dedicated amp.Please don't make us have the whole discussion on distortion and what it does to your speakers,how you get it and why.AVR must have pre-outs to use a seperate
    2-channel amp.Find a used Carver on EBAY for a couple hundred bucks so you don't fry a good set of speakers.It's all about quality of the watts not quantity.Have you searched this forum for info? The LSI line is a bit power hungry and you should get 200 watts min.to power them if you want to hear what they can do.Will you hear sound if you hook them up just to your receiver? Yeah,not the best sound and when you crank on the volume
    the whimpy amp section inside your AVR will start to distort and you can say by-by to those beautifull speakers you just plucked your hard earned cash
    down on.
    If WE SEE A THREAD ABOUT A BLOWN-UP LSI 15 BYYOU.ALL OF US WILL COME TO YOUR HOUSE AND ****-SLAP YA!!!!!!:) :)
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Polk Sig. 20's
    Polk FX500 surrounds

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    Grant Fidelity tube dac
    B&k 1420
    lsi 9's
  • cfrizz
    cfrizz Posts: 13,415
    edited May 2006
    YES! Please get those Outlaw monoblocks! Your receiver & speakers will thank you.

    BTW, your receiver has to have preouts in order to hook up the amps. So check that first. Better yet, start by getting a decent receiver first.

    What kind of budget do you have for this project? That would help us to guide you in the right direction.

    kolyan2k wrote:
    i don't know much about audio......why underpowering? it's 100 watt per channel.

    and another thing is this: if i get 2 mono blocks from outlaw, do i still need a reviever to have a stereo setup?
    Marantz AV-7705 PrePro, Classé 5 channel 200wpc Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony XBR-49X800E TV, Polk S60 Main Speakers, Polk ES30 Center Channel, Polk S15 Surround Speakers SVS SB12-NSD x2
  • kolyan2k
    kolyan2k Posts: 259
    edited May 2006
    I can probably get a pair of used LSi 15s for about $750, but i will only be using them in 6-9 month. are they even worth buying now? later i am planning on buying Denon AVR3806 or even better reciever, but right now all i got is this Techwood crap w/ no pre-outs. and like i said i will also be buying 2 or 3 outlaw mono blocks. i just cannot afford a $1000 dollar reciever and really don't wanna spend $200 on a reciever that i will have to through away later.

    so i can buy the speaker and not use them for 6-9 month or i don't know......

    maybe i can get AVR3806 without mono blocks right now. at least i will not waist couple of hundred on "not so good" AVR
  • cfrizz
    cfrizz Posts: 13,415
    edited May 2006
    That's a good price on LSI's. But you really can't play them loud on a receiver without putting them at risk.

    Tough spot you're in!
    Marantz AV-7705 PrePro, Classé 5 channel 200wpc Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony XBR-49X800E TV, Polk S60 Main Speakers, Polk ES30 Center Channel, Polk S15 Surround Speakers SVS SB12-NSD x2
  • RoosterD
    RoosterD Posts: 36
    edited May 2006
    I would buy the speakers now, and a decent used amp to power them ($200 er so). Then in 6-9 months when you have the money for the 3806, put the $200 amp on Craig's list and get your money back. You will get it back too. Even if you only get $160 back, you only paid $40 to listen to the LSi's for 6-9 months. I would do it. They sound amazing. Then in an additional 6-9 months order a decent dvd player like the 3910 or something of the class.

    To give you an idea of what the distortion is like, I have had an Onkyo 313pro (60W/ch) since 1992. I had it hooked up to a pair of Infinity RS525 (150W) speakers. I always had to turn the bass down on the amp or run capacitors to limit the low frequency because the infinity's would pop and distort with too much bass; (I assumed) the speakers couldn't handle it. You can imagine my surprise when I finally got my 3805 last year and hooked up the infinitys to it and they handled the amps power just fine; bass and all. Needless to say I ended up blowing one of them from normal use. Be very careful with that technics/kenwood/sherwood whatever it is receiver and ANY speakers let alone Polk LSi15's.
    Denon 3805S
    Denon 3910S
    Polk LSi 15's
    Polk LSi F/X's
    Polk LSi C
    Boston Pro 10" DIY Sub
    Samsung 5678W DLP 1080P
    PS3
  • cfrizz
    cfrizz Posts: 13,415
    edited May 2006
    His receiver has no preouts, so getting an amp right now won't do any good.
    Marantz AV-7705 PrePro, Classé 5 channel 200wpc Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony XBR-49X800E TV, Polk S60 Main Speakers, Polk ES30 Center Channel, Polk S15 Surround Speakers SVS SB12-NSD x2
  • kolyan2k
    kolyan2k Posts: 259
    edited May 2006
    cfrizz wrote:
    His receiver has no preouts, so getting an amp right now won't do any good.


    yeah.....so i guess the only good option is to either wait and not buy anything or get a good reciever right away 3806 or maybe even 4806 (don't know if its worth extra)

    and i read here that LSi15s sound alright on 3806 and mono blocks can wait
  • Skynut
    Skynut Posts: 2,967
    edited May 2006
    It is rough starting out.
    I got my first good speakers (RT2000p) and had a sony receiver to drive them. Whenever I tried to crank them up the sony would go into protect mode. Lucky for me because I don't think I did any damage to the speakers.
    Also lucky for me I found this site and learned the error of my ways.

    Fwiw it took me around 3 years to complete my first decent HT.
    Skynut
    SOPA® Founder
    The system Almost there
    DVD Onkyo DV-SP802
    Sunfire Theater Grand II
    Sherbourn 7/2100
    Panamax 5510 power conditioner (for electronics)
    2 PSAudio UPC-200 power conditioners (for amps)
    Front L/R RT3000p (Bi-Wired)
    Center CS1000p (Bi-Wired) (under the television)
    Center RT2000p's (Bi-Wired) (on each side of the television)
    Sur FX1000
    SVS ultra plus 2

    www.ShadetreesMachineShop.com
    Thanks for looking
  • cfrizz
    cfrizz Posts: 13,415
    edited May 2006
    The 3806 will be fine or even a lower cost Denon that has preouts. The main concern is that you will really have to watch the volume since the LSI's are very demanding speakers. You crank the volume you will put your receiver into protect mode (at best) (at worse you will blow your speakers!)
    kolyan2k wrote:
    yeah.....so i guess the only good option is to either wait and not buy anything or get a good reciever right away 3806 or maybe even 4806 (don't know if its worth extra)

    and i read here that LSi15s sound alright on 3806 and mono blocks can wait
    Marantz AV-7705 PrePro, Classé 5 channel 200wpc Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony XBR-49X800E TV, Polk S60 Main Speakers, Polk ES30 Center Channel, Polk S15 Surround Speakers SVS SB12-NSD x2
  • .Jon
    .Jon Posts: 98
    edited May 2006
    dude it will be fine. just do it. the lsi sieriers is ver efficient and can be driven very loud on 10 watts
    vsnares
  • amulford
    amulford Posts: 5,020
    edited May 2006
    sure, fry his AVR...
  • .Jon
    .Jon Posts: 98
    edited May 2006
    im doing it right now on a radioshack x200. 15 watts and i cant here myself think
    vsnares
  • DollarDave
    DollarDave Posts: 2,575
    edited May 2006
    I am here and you can't "hear". Two different meanings.
  • .Jon
    .Jon Posts: 98
    edited May 2006
    your wrong
    vsnares
  • DollarDave
    DollarDave Posts: 2,575
    edited May 2006
    Wrong that I am not here? Or, wrong that here and hear mean something different? I didn't mean to imply that you could not hear. Since this is an audio forum, you probably hear quite well (not good).
  • .Jon
    .Jon Posts: 98
    edited May 2006
    LOLLLLl
    vsnares
  • BeardsOfCanada
    BeardsOfCanada Posts: 21
    edited May 2006
    What if I cannot hear and I happen to own many polk products? What if I like the way they hold my beer mug whilest I watch the tele and the rich smell that comes off them when I use them as firewood?
  • DollarDave
    DollarDave Posts: 2,575
    edited May 2006
    I guess as long as you are drinking Moosehead or Molson (and are with a fine lady) you are problably okay.
  • Frank Z
    Frank Z Posts: 5,860
    edited May 2006
    .Jon wrote:
    im doing it right now on a radioshack x200. 15 watts and i cant here myself think
    You seem to be confusing "Loud" and "Good." Sure any POS flea market receiver can send a signal down the wire to virtually any speaker, but that doesn't mean it's going to sound good...or even acceptable.

    The LSi speakers are capable of stunning sound quality, but just like a computer, garbage in=garbage out.

    We're done here.
    9/11 - WE WILL NEVER FORGET!! (<---<<click)
    2005-06 Club Polk Football Pool Champion!! :D
  • .Jon
    .Jon Posts: 98
    edited May 2006
    LOL. some people dont know what unimplied sarcasm is. x200 isnt even real i just made it up hahah
    vsnares
  • BeardsOfCanada
    BeardsOfCanada Posts: 21
    edited May 2006
    Well, I am actually a bathtub gin connisseur- that's how I lost my hearing. The doctor says I'm lucky not to have lost my eyesight as well, and I'm sure happy I didn't. Without my eyes I could never stare into the eyes of my lover, my identical twin brother. He, however, likes Infinity. I make him leave those over in the other section of the shed, near the chairs made of human skeletons.
  • jayman_1975
    jayman_1975 Posts: 672
    edited May 2006
    dude you're makin us look like a bunch of hillbillies
    Onkyo TX NR 5008 modified by The Upgrade Company
    Oppo BDP 93 modified by The Upgrade Company
    Arcam CD37
    Monitor Audio Gold GS 60
    Revolver Audio Music 5 towers.(surround)
    Vandersteen V2W
  • Frank Z
    Frank Z Posts: 5,860
    edited May 2006
    .Jon wrote:
    LOL. some people dont know what unimplied sarcasm is. x200 isnt even real i just made it up hahah
    Unimplied = not implied
    Your command of the spoken word is......well, pathetic.

    I foresee a Speak & Spell in your future.
    9/11 - WE WILL NEVER FORGET!! (<---<<click)
    2005-06 Club Polk Football Pool Champion!! :D
  • tonyb
    tonyb Posts: 33,008
    edited May 2006
    :( Now I know why there are so many threads on blown speakers.............
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Polk Sig. 20's
    Polk FX500 surrounds

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    Grant Fidelity tube dac
    B&k 1420
    lsi 9's
  • .Jon
    .Jon Posts: 98
    edited May 2006
    I thought it was a dead give away when i said i couldent hear myself think with 15 watts from a made up radioshack model.
    vsnares
  • cfrizz
    cfrizz Posts: 13,415
    edited May 2006
    .Jon, Kolyan2k was asking a serious question, which dictated a serious answer. Those speakers cost a considerable amount of money & having them get blown by being fed inadequate power is simply not a good thing!

    If you want to joke around go to the clubhouse and have fun. But if someone is asking for help, especially an inexperienced newbie, be respectful enough to take them seriously & give them the right information.

    No one can hear your joking facecious tone of voice over the internet. That's why winky smilies were created!
    Marantz AV-7705 PrePro, Classé 5 channel 200wpc Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony XBR-49X800E TV, Polk S60 Main Speakers, Polk ES30 Center Channel, Polk S15 Surround Speakers SVS SB12-NSD x2