Is it possible to damage a Harman Kardon 635 by using it with LSis?
Laura Palmer
Posts: 124
A friend of mine recently purchased the LSi speakers and I just wanted to test them out for a while on my AVR635....maybe do some A/B comparisons with the RTi speakers.
I know his speakers would sound best with an amplifier, but I currently don't have that resource. I just don't want to damage his speakers and/or my receiver. Would it?
I know his speakers would sound best with an amplifier, but I currently don't have that resource. I just don't want to damage his speakers and/or my receiver. Would it?
Post edited by Laura Palmer on
Comments
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If you keep it at low volumes and in stereo mode you shouldn't hurt anything. Cranking it can result in the receiver overheating from trying to drive the 4o ohm load, and/or blowing the speakers because it will be pushed into clipping faster. The Lsi's are also less efficient so you aren't going to get the same volume as you would with rti's.
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How loud is loud? I usually listen around -35db on the RTis.
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Originally posted by Zero
Actually, the HK amps are very stable at 4 ohms and have no trouble pushing the Lsi's. In fact, they are one of the only receiver (sans chip amplifiers) of their class that I know of that can actually power the Lsi's well..
Doubtful. The 635 may power the 4 Ohms w/o overheating, but I wouldn't go so far as to say they power the LSi's well. Does it make sound? Sure. Is it obvious even w/ a $1000 receiver that these are superior speakers? Without question. Does the 635 come close to revealing just how superior these speakers can be? Not even close.
Happy listening, though. If your A/B comparison on a receiver at that level shows the LSi's off to your liking, at least you will know how they sound on a preliminary basis. I think you will find the sound qualities pleasing, although they will probably sound a bit thin or constricted on the 635.Current System:
Mitsubishi 30" LCD LT-3020 (for sale**)
Vienna Acoustics Beethoven Concert Grand (Rosewood)-Mains (with Audioquest Mont Blanc cables)
CSi5-Center (for sale**)
FXi3-surrounds (for sale**)
Martin Logan Depth-Sub
B&K AVR 507
Pimare CD21-CD Player
Denon 1815-DVD Player
Panamax M5500-EX-Line Conditioner -
You may find this to be an expensive experiment. Once you hear them , even underpowered, there is a danger of wanting them all to yourself... And then a new amp, a new receiver, etc. Have fun.Sharp Elite 70
Anthem D2V 3D
Parasound 5250
Parasound HCA 1000 A
Parasound HCA 1000
Oppo BDP 95
Von Schweikert VR4 Jr R/L Fronts
Von Schweikert LCR 4 Center
Totem Mask Surrounds X4
Hsu ULS-15 Quad Drive Subwoofers
Sony PS3
Squeezebox Touch
Polk Atrium 7s on the patio just to keep my foot in the door. -
I know! The more and more I think about it, the more scared I get. I'm starting to think this A/B comparison is NOT a good idea.
In fact the reason I wanted to borrow the LSis were actually hoping the opposite would happen. That I could put my fears to rest knowing I got better speakers for my purposes.
Cause what led me away from the LSis in the first place was that I heard they were not good speakers if you listened to any rock music...and I do listen to some heavier "rock" type music... so I wanted to find some all-purpose speakers.
Ah well...we'll see where I'm at in a few days. Whether I'm complaining that I picked up the wrong speakers, or if I'm excited that I made the right decision... It'll probably be the former.
hee hee. -
let the catcalls go up. if the tunes don't sound right with lsi's, give them a whirl with your preset eq trims. just remember that using them might put some extra strain on your gear, so take it easy.
and have fun.
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That A and B compariso with the HK will be fine, just don't push it too much. I had an HK AVR-510 at first with my LSis and it worked well, but I never drove the volume up really high. Never higher than 35 or so.
Just keep in mind that those LSi speakers can sound a lot better. You might not believe it when you hear them but they can.
What kind of rock are you talking about? The LSi line is a bit revealing, so when listening to "metal" one might think it doesn't sound as good as an RTi or other type of speaker. It's not really the speakers fault, it's because a lot of "metal" CDs are poorly produced. -
Ohhh, ok....the metal music has the fault....Come on...¡¡¡¡¡
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The HK can power the LSI's...I have no idea why people are so scared. Yes it can dip down to 4ohms...its nominal is 6ohms in fact....and yes, even at higher volumes with the HK, I used a 635 and had the volume at -15 without any strain on a pair of LSi9's...its the pre/amp section of the HK that will diminish the quality of the LSi's long before the amp section.
Also, the LSi's can play hard rock. Pickup a recording of Korn and crank it. -
laura, if you're afraid you may become stricken with upgrade-itus, just keep in mind that there will ALWAYS be better than what you have out there. enjoy your rti's awhile before deciding to upgrade. let your wallet, well, purse stretch its legs out. (purse with legs?) :rolleyes: unless you can apply money spent on the rti's directly to a new set of lsi's, don't worry yourself too much. your friend will probably end up spending much more than you did for a little bit of better quality.
POLK SDA-SRS 1.2TL -- ADCOM GFA-5802
PANASONIC PT-AE4000U -- DIY WILSONART DW 135" 2.35:1 SCREEN
ONKYO TX-SR805
CENTER: CSI5
MAINS: RTI8'S
SURROUNDS: RTI8'S
7.1 SURROUNDS: RTI6'S
SUB: SVS PB12-PLUS/2 (12.3 series)
XBOX 360WiiPS3/blu-rayTOSHIBA HD-A35 hd dvd
http://polkarmy.com/forums/index.phpbobman1235 wrote:I have no facts to back that up, but I never let facts get in the way of my arguments. -
I'm with Zero and Lush on this one, and from personal experience. On occasion I'll even run the SDA 2Bs on the A channels and the RTA 8TLs on the B channels, at the same time, at moderate(-25 on the readout) levels, with nary a glitch or excessive heat. I've also ran a few other 4 ohm speakers on the HK without any problems at all.
With that being said, of course an external amp running with the HK as a pre will take it up a notch, as long as it's a decent brand."SOME PEOPLE CALL ME MAURICE,
CAUSE I SPEAK OF THE POMPITIOUS OF LOVE" -
Its a bad idea because its not a good A/B test. Dont think it will hurt anything though.
RT1 -
Tequila wrote:Ohhh, ok....the metal music has the fault....Come on...¡¡¡¡¡
He didn't say that the music was the fault, he said that the production of the music was at fault.
This is true of all music. If the production values are low it will show up with glaring clarity on better equipment.
There are some of my discs I no longer listen to or have gotten rid of. I now hear lots of hiss, dullness, ect. through my receiver & separate amp that I never heard when the receiver powered the speakers by itself.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 -
I did the test between Rt and Ls and the Rt won for me. Laura, Go for the Rt and don`t get a problem with the wrong LSi.
I have two greats revelations in my life:
1. God is not real.
2. The Rti is superior than Lsi and nevermind the parts..to me.
3. I am a free man. -
Tequila wrote:1. God is not real.
2. The Rti is superior than Lsi and nevermind the parts..to me.
3. I am a free man.
Hmmmm..... :rolleyes:"SOME PEOPLE CALL ME MAURICE,
CAUSE I SPEAK OF THE POMPITIOUS OF LOVE" -
Well...I guess he's 1) Pretty niave 2) Has a preference for the RTI speakers 3) Is a US citizen that lives in Mexico?
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Tequila wrote:I have two greats revelations in my life:
1. God is not real.
3. I am a free man.
word.
and it's 'Naive' -
Tequila wrote:I did the test between Rt and Ls and the Rt won for me. Laura, Go for the Rt and don`t get a problem with the wrong LSi.
I have two greats revelations in my life:
1. God is not real.
2. The Rti is superior than Lsi and nevermind the parts..to me.
3. I am a free man.
While you can't really debate personal opinion I think I could make a pretty persuasive argument against all three.
BDTI plan for the future. - F1Nut -
TroyD wrote:While you can't really debate personal opinion I think I could make a pretty persuasive argument against all three.
BDT
Word!
WORD ON EVERYTHING!
time to start a new thread, you guys know what's coming~
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Hey...
My personal point of view is not for a fight... :rolleyes: Hahaha...Is not a problem.
By the way...God is only in the mind. And nobody is truly free...
Hey Dave...what do you mean in the third comment?
Thanks.
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Do we get to pick any two of the three???Tequila wrote:I have two greats revelations in my life:
1. God is not real.
2. The Rti is superior than Lsi and nevermind the parts..to me.
3. I am a free man.
MichaelMains.............Polk LSi15 (Cherry)
Center............Polk LSiC (Crossover upgraded)
Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms) -
Laura:
LSi's don't like H/K amplifier sections very well. THe combination can sound fairly dark and veiled. I've had no issues like that for any other amp/LSi combo.
So while you won't damage them, the will sound poorer than they should, even for a receiver. There is no genuine justice in any scheme of feeding and coddling the loafer whose only ponderable energies are devoted wholly to reproduction. Nine-tenths of the rights he bellows for are really privileges and he does nothing to deserve them. We not only acquired a vast population of morons, we have inculcated all morons, old or young, with the doctrine that the decent and industrious people of the country are bound to support them for all time.-Menkin -
I went back & checked Laura's system. She purchased a 2 channel amp to drive her speakers. I don't know who dragged up this old thread from: 05-09-2005, 09:06 PM !
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 -
Our good Buddy Tequila drug this out of the abyss.
Didn't Laura get one of the Monster amps??"SOME PEOPLE CALL ME MAURICE,
CAUSE I SPEAK OF THE POMPITIOUS OF LOVE" -
Jesus that explains it.
Note to self Put Tequila on ignore list!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 -
Aww, caca, sorry Cathy, I saw it pop to the top and didn't remember the ancientness of the thread. Anyway, I stand by my point:
Tequila makes one stupid.There is no genuine justice in any scheme of feeding and coddling the loafer whose only ponderable energies are devoted wholly to reproduction. Nine-tenths of the rights he bellows for are really privileges and he does nothing to deserve them. We not only acquired a vast population of morons, we have inculcated all morons, old or young, with the doctrine that the decent and industrious people of the country are bound to support them for all time.-Menkin -
Amen JD!
Noel, Yes she got a humongous 200 watt Monster amp for her RTI 12's. We helped her put together a slamming system!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
