Will the Denon AVR-4311CI be able to handle two pairs of LSI15's?
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Probably not. Especially being they are 4 ohm speakers & 2 pairs is very questionable..
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Just curious. Why 2 pairs of tower speakers ? You could always add a external amplifier by using pre-out & bring a pair of those speakers alive by feeding them power..
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The LSi series speakers won't perform their best with just a receiver but they will play within reasonable volume limits. The pre-amp outputs on the receiver provide the option for adding an amplifier that can drive them to their full potential. Polk recommended high current amplification with the LSi, LSiM, and Legend lines.
Is it just four LSi15s in the system or other speakers too? Adding more speakers would draw more current from the modest power supply in the receiver to the extent that driving the speakers at high volume could fry the tweeters. Replacements may be difficult to find. -
boston1450 wrote: »Just curious. Why 2 pairs of tower speakers ? You could always add a external amplifier by using pre-out & bring a pair of those speakers alive by feeding them power
They were given to me by a friend. What about the marantz ma500? There is a seller offering two of them. Would these work? -
I've never used Mono block amplifiers. I'm sure someone will chime in..... What is your goal to do here ? Do you plan on running HT or 2 channel. Room size ?..
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boston1450 wrote: »Just curious. Why 2 pairs of tower speakers ? You could always add a external amplifier by using pre-out & bring a pair of those speakers alive by feeding them power
They were given to me by a friend. What about the marantz ma500? There is a seller offering two of them. Would these work?
Each one powers a single speaker. And they are pretty weak for Monoblocks. I would just run one pair, and the denon would be okay but not ideal.Living Room 2.2: Usher BE-718 "tiny dancers"; Dual DIY Dayton audio RSS210HF-4 Subs with Dayton SPA-250 amps; Arcam SA30; Musical Fidelity A308; Sony UBP-x1000es
Game Room 5.1.4: Denon AVR-X4200w; Sony UBP-x700; Definitive Technology Power Monitor 900 mains, CLR-3000 center, StudioMonitor 350 surrounds, ProMonitor 800 atmos x4; Sub - Monoprice Monolith 15in THX Ultra
Bedroom 2.1 Harmon Kardon HK3490; Bluesounds Node N130; Polk RT25i; ACI Titan Subwoofer -
Thanks guys. I purchased a Pioneer elite sc-05.
Apparently this should get the job done for all 4 of them. -
Congrats on your Pioneer purchase. So you are going to be using it on (4 ) Lsi15 speakers ? How will you be hooking them up may I ask. How big is your room ?..
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The Pioneer, though more capable, is still not enough to handle 4 LSI15's... You need a pair of robust two channel amps to get them to work as they should. The issue is not wattage, but rather current. They are a very demanding speaker as a pair for any receiver. Trying to run 4 of them at any level approaching theater levels may work for a short period of time, but something is bound to fail.The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
Thanks guys. I purchased a Pioneer elite sc-05.
Apparently this should get the job done for all 4 of them.
Only in theater mode, if you run in stadium mode, meaning all channels driven at same frequencies then, NO not enough power. Do you have a subwoofer to take some of the weight off the receiver?
In theater mode the rear channels only produce the frequencies of back ground effects which is overall a minimal strain on the receiver.
Also keep in mind if using as a theater receiver it does not have the latest codecs for audio/visual reproduction currently out there.
If using for music, not sure why you would have 4-speakers unless you have some old quadraphonic recordings, but NO you do not have enough power
At the minimum you need a dedicated amp for 2 of the speakers if running 4 speakers at full range or you will clip that receiver….promise you that. To much clipping and you blow the speakers and/or the receiver
I know as I owned that generation of Pioneer and the LSi series Polks
2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
erat interfectorem cesar et **** dictatorem dicere a -
Amongst my readings it seems to damage the tweeters as well. I've never owned the 15's & I love the looks of them. I enjoyed the Lsi7's & they seem to be flexible on the Ohms even though I had them hooked to my Parasound amplifier & they sounded phenomenal..
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txcoastal1 wrote: »Thanks guys. I purchased a Pioneer elite sc-05.
Apparently this should get the job done for all 4 of them.
Only in theater mode, if you run in stadium mode, meaning all channels driven at same frequencies then, NO not enough power. Do you have a subwoofer to take some of the weight off the receiver?
In theater mode the rear channels only produce the frequencies of back ground effects which is overall a minimal strain on the receiver.
Also keep in mind if using as a theater receiver it does not have the latest codecs for audio/visual reproduction currently out there.
If using for music, not sure why you would have 4-speakers unless you have some old quadraphonic recordings, but NO you do not have enough power
At the minimum you need a dedicated amp for 2 of the speakers if running 4 speakers at full range or you will clip that receiver….promise you that. To much clipping and you blow the speakers and/or the receiver
I know as I owned that generation of Pioneer and the LSi series Polks
Hmm...... Yes I have two svs pb1000 pro's. So I need a two channel amp for one pair and the receiver will be able to handle the other pair? And that way, I should have no problems running in stadium mode? -
nooshinjohn wrote: »The Pioneer, though more capable, is still not enough to handle 4 LSI15's... You need a pair of robust two channel amps to get them to work as they should. The issue is not wattage, but rather current. They are a very demanding speaker as a pair for any receiver. Trying to run 4 of them at any level approaching theater levels may work for a short period of time, but something is bound to fail.
Can I get away with a 2 channel amp and run the other pair via receiver? -
nooshinjohn wrote: »The Pioneer, though more capable, is still not enough to handle 4 LSI15's... You need a pair of robust two channel amps to get them to work as they should. The issue is not wattage, but rather current. They are a very demanding speaker as a pair for any receiver. Trying to run 4 of them at any level approaching theater levels may work for a short period of time, but something is bound to fail.
Can I get away with a 2 channel amp and run the other pair via receiver?
Possible, given that the second pair are used as surrounds.
The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
txcoastal1 wrote: »Thanks guys. I purchased a Pioneer elite sc-05.
Apparently this should get the job done for all 4 of them.
Only in theater mode, if you run in stadium mode, meaning all channels driven at same frequencies then, NO not enough power. Do you have a subwoofer to take some of the weight off the receiver?
In theater mode the rear channels only produce the frequencies of back ground effects which is overall a minimal strain on the receiver.
Also keep in mind if using as a theater receiver it does not have the latest codecs for audio/visual reproduction currently out there.
If using for music, not sure why you would have 4-speakers unless you have some old quadraphonic recordings, but NO you do not have enough power
At the minimum you need a dedicated amp for 2 of the speakers if running 4 speakers at full range or you will clip that receiver….promise you that. To much clipping and you blow the speakers and/or the receiver
I know as I owned that generation of Pioneer and the LSi series Polks
I posted your reply at avsforum and someone responded. Can you please respond to this.
My eyes glaze over when people say amps "handle" speakers. :rolleyes: They also think Ohm's/Watt's Law doesn't apply and current operates independent of voltage and power [V = I x R; P = V x I].
Both posters think 4 of these towers is an issue, which leads me to believe they incorrectly think being physically large makes them "demanding". The opposite is more often the case. Would we even be having this conversation if you had 4 bookshelf speakers? They're usually the ones that are harder to drive, due to their typically lower sensitivity.
The above is generic advice not taking your particular situation into account. Your speakers will be high-passed, not run full range and you'll be sitting about 2m from all of them. The notion that you'll "blow the speakers and/or the receiver" is nonsense. The speakers will give you plenty of notice if they're in distress and AVR's contain multiple layers of protection circuitry that will shut the unit down if anything untoward is detected (overcurrent/low impedance; overheating).
Your Pioneer is a stout AVR and this is reflected in it's bench test results and it's THX Select2 certification. A THX Select2 certified AVR will be able to play any commercially available program material to cinema reference level (indicated by a calibrated 0.0dBMV) in a Select2 sized room when hooked up to a satellite/sub system comprising seven speakers with a minimum sensitivity of 89dB/1W/1m and nom. impedances of 4Ω (L/C/R) and 8Ω (surrounds/rears). A Select2 room is up to 2000ft^3 in volume with a screen to seat distance of 10 - 12ft. Your 6Ω speakers in your compact layout is a walk in the park by comparison -
nooshinjohn wrote: »The Pioneer, though more capable, is still not enough to handle 4 LSI15's... You need a pair of robust two channel amps to get them to work as they should. The issue is not wattage, but rather current. They are a very demanding speaker as a pair for any receiver. Trying to run 4 of them at any level approaching theater levels may work for a short period of time, but something is bound to fail.
please reply to this posters message over at avsforum
My eyes glaze over when people say amps "handle" speakers. :rolleyes: They also think Ohm's/Watt's Law doesn't apply and current operates independent of voltage and power [V = I x R; P = V x I].
Both posters think 4 of these towers is an issue, which leads me to believe they incorrectly think being physically large makes them "demanding". The opposite is more often the case. Would we even be having this conversation if you had 4 bookshelf speakers? They're usually the ones that are harder to drive, due to their typically lower sensitivity.
The above is generic advice not taking your particular situation into account. Your speakers will be high-passed, not run full range and you'll be sitting about 2m from all of them. The notion that you'll "blow the speakers and/or the receiver" is nonsense. The speakers will give you plenty of notice if they're in distress and AVR's contain multiple layers of protection circuitry that will shut the unit down if anything untoward is detected (overcurrent/low impedance; overheating).
Your Pioneer is a stout AVR and this is reflected in it's bench test results and it's THX Select2 certification. A THX Select2 certified AVR will be able to play any commercially available program material to cinema reference level (indicated by a calibrated 0.0dBMV) in a Select2 sized room when hooked up to a satellite/sub system comprising seven speakers with a minimum sensitivity of 89dB/1W/1m and nom. impedances of 4Ω (L/C/R) and 8Ω (surrounds/rears). A Select2 room is up to 2000ft^3 in volume with a screen to seat distance of 10 - 12ft. Your 6Ω speakers in your compact layout is a walk in the park by comparison. -
@blueskies if I may, the approach here from your last posts appear to be pressing @txcoastal1 and @nooshinjohn into a good 'ol Texas scrap with Mr AVS man, probably not the best approach.
Lets just take a look at a couple of things, first of all, nicely done on your AVR choice, lots of power (watts).
Also, Mr AVS man mentioned that your "6ohm" speakers would be walk in the park. Not sure if that was a typo but that kind of miscommunication could cost you big time since your LSi15's are 4ohm speakers.
Polk specifies: "4-ohm impedance; these speakers must be powered using high-current amplification." High powered watts are cool, but high-current is what's specified here.
I'm thinking in order to get your answers, check on high-current equipment (mentioned by nooshinjohn) and signal clipping (mentioned by txcoastal 1)
Just an observation here, when someone gives you a response by first saying his eyes glaze and gives you a rolled eyes emoji comes across as a little arrogant, but I would bet dollars to doughnuts this guy has no experience with your speakers. The recommendations given by the two members here as far as I know DO have experience with your speakers.
Most likely, the best approach here would be to contact these members and ask them of their personal experience with your speakers. I could be wrong, but my guess is that Mr AVS has never seen an LSi15 much less have the experience with them.
Best-O-luck to you.Source: BRP Panasonic UB9000, CDP Emotiva ERC3 - Display: LG OLED EVO 83 C3 - Pre/Pro: Marantz 8802A - Amplification: Emotiva XPA-DR3, XPA-2 x 2, XPA-6, Speakers, Mains/2ch-Focal Kanta No2's, C-LSiM706, S-702F/X, RS-RTiA9's, WS-RTiA9's, FH-RTiA3's, Subs - Epik Empire x 2
Cables: AudioQuest McKenzie XLR's/CDP/Amp, Carbon 48/BRP, Forest 48/Display, 2 channel speaker cable: Furutech FS Alpha 36 12AWG PCOCC Single Crystal (Douglas Connection)
EXPERIENCE: next to nothing, but I sure enjoy audio and video MY OPINION OF THIS HOBBY: I may not be a smart man, but I know what quicksand is.
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I would sell one set of LSi15's and put the money toward a good 2-ch amp for the fronts. Small bookshelfs will do just as well for HT surround duty in all but the most demanding systems (and they're not running AVR's!), and multi-channel music listening is a novelty that quickly turns into a gimmick, IMO.
When I first built out my system, I started with matching speakers and amps all around, pushing the same 200-300W into the rear channels as into the fronts. It sounded good, but was a waste of resources. I've since added power and more capable speakers up front, and significantly scaled back the surrounds (amps and speakers), and it sounds way better all around.Polk LSi15 fronts, LSi7 dual centers, Linn AV5110 sides, Polk RT15i rears, Emotiva UMC-200 pre/pro, Carver M-1.0t MkII front & center amps, Parasound surround(s) amp, Crown XLS1502 & Dayton 18" sub, BenQ HT2050 projector. -
@blueskies look dude, those 15s are 4 ohm speakers that are very demanding, and yes, the 9s are also a demanding 4 ohm load, but without the extra 10 inch woofer. Do you think those power themselves? If you cross everything over at 80 and get the volume reasonable, you’ll be fine sure. But you will be missing out on a lot of what those speakers have to offer. I owned the 7s and the 9s, and the 7s are 6 ohm and are not terribly difficult to drive, so I was able to get away with using a receiver with decent results. But the 9s? All but the most powerful AVRs of yesteryear need not apply…Living Room 2.2: Usher BE-718 "tiny dancers"; Dual DIY Dayton audio RSS210HF-4 Subs with Dayton SPA-250 amps; Arcam SA30; Musical Fidelity A308; Sony UBP-x1000es
Game Room 5.1.4: Denon AVR-X4200w; Sony UBP-x700; Definitive Technology Power Monitor 900 mains, CLR-3000 center, StudioMonitor 350 surrounds, ProMonitor 800 atmos x4; Sub - Monoprice Monolith 15in THX Ultra
Bedroom 2.1 Harmon Kardon HK3490; Bluesounds Node N130; Polk RT25i; ACI Titan Subwoofer -
@blueskies look dude, those 15s are 4 ohm speakers that are very demanding, and yes, the 9s are also a demanding 4 ohm load, but without the extra 10 inch woofer. Do you think those power themselves? If you cross everything over at 80 and get the volume reasonable, you’ll be fine sure. But you will be missing out on a lot of what those speakers have to offer. I owned the 7s and the 9s, and the 7s are 6 ohm and are not terribly difficult to drive, so I was able to get away with using a receiver with decent results. But the 9s? All but the most powerful AVRs of yesteryear need not apply…
This makes sense. For reference, my rears are 5 ft away from my listening position and my fronts are 9 ft away. In your opinion, how much will I be missing out if I don't get an amplifier?
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