How much to power your LSi's

markmarc

Ok, I'm reviewing a pair of Lsi's (I'll keep the model # a secret for now). for those of you with LSi's name your amp and power output in order to make your speakers sing!

janmike

Proceed AMP5 - 250 wpc into 4 ohms

McLoki

Cinepro 3k6 - 500wpc into 4 ohms. (1100watt peaks)

Michael

(click on link in my sig to see more specs.)

polkatese

Krell 400Xi, 400watts @ 4 ohms

ohskigod

Hafler DH500 to LSi15 mains (500watts 4 ohms)
2 outlaw mono's biamped to LSiC (300 into 4 ohms to top and bottom)
Rotel RB980 to LSi9 surrounds (200 watts into 4 ohms)

sickicw

For Lsi9s:
Rockford Fosgate Power T8004 (200 watts @ 4 ohms and 400 watts @ 2 ohms) for 2 channels
Powered by duel 55 amp Cascade Audio AC to DC converters.

For lsic, and lsiFX (2):
Outlaw Audio 7500 (300 watts @ 4 ohms) for 5 channels

Sami

15's, Aragon 2004 2ch with 200WPC @ 4ohm. Aragon 4004 should be there instead tomorrow with 400WPC @ 4ohm.

7's. B&K AV5000 5ch, 185WPC @ 4ohm.

janmike

Markmarc,
Remember WPC does not necessarily equate to Quality, but you probably know that already.

radoboy

LSi15s, LSiC, LSiFX powered by Outlaw 7500... 300x5 into 4ohms.

unc2701

I've run with:
Bryston 9b => 200+wpc into 4ohm (occasionally biamped)
Krell 300i => 300wpc into 4ohm
Adcom 555 => 300wpc into 4ohm
Adcom 565 => 500+wpc into 4ohm
Bryston 4b => 500+wpc into 4ohm

In order of prefference, I'd say 4b, 9b biamped (pseudo active), 565, 9b, krell, 555. Since you can't biamp the lsi25's that only applies to the LSi9's and I never put the 565's on the LSI9's

george daniel

LSI 15's = Odyssey Stratos Extreme, 165 w/ch

markmarc

JanMike:
I do, just using the poll for background info for the LSi review.

izafar

LSi15: 315 wpc in 4 ohms. Parasound HCA 1500

jdhdiggs

LSi 9's and 7's
Knight Monos ~45W Tube power
Carver A500x 400W / Channel SS
Counterpoint S-100 175W Hybrid Tube
Adcom 565 mono's: 450 W SS

All are plenty to run either speaker.

jm1

Rotel RB-980BX, then Simaudio Moon W-3 to LSi9's.

I am more concerned about the sonic characteristics of the amp instead of the total wpc.

janmike

jm1 wrote:

Rotel RB-980BX, then Simaudio Moon W-3 to LSi9's.

I am more concerned about the sonic characteristics of the amp instead of the total wpc.

Total agree. Having said that, have you tried other amps with the 9's?

jm1

I have since moved on to different monitors and do not have the 9's anymore. The W-3 is not going anywhere as I would need to invest significant $$ to better it.

MikeC78

4 LSi15's, and an LSiC

2 - Monster MPA 3250's 400w/channel at 4ohms

unc2701

huh- JDH made me go look up the specs on the 565's and they really are only 450 watts. I thought I took a slight hit when I went to the 4b, but I guess not.

lanion

Im very very happy with my Outlaw 7125 (190watts at 4ohms)

cbl117

Lsi15 powered by Halo A23 (200 Wpc @ 4Ohms)

heiney9

9's with Adcom GFA-545. Made the clipping lights flicker once. Plenty of reserve. I'd say at least 100 watts of high current power if you have a medium listening area.

H9

2+2

LSi15s on Rotel 1080....350w @4ohms...
LSi7 on HK230 receiver...65w @8ohms...? @4ohms.

frreo1

Sony ES 9000 Receiver. It outputs 200 WPC into 4 ohms. The ES 9000 has a 4 ohm selector switch. The Sony ES 7100 would most likely work fine as well. I have 7 LSI's connected to the receiver, (four LSI 15, one LSI C, and two LSI 7's) (along with a PSW 1000) and it sounds just fine in an average size room. If I were to move into a larger area, I would consider a McIntosh 352 for the front LSI 15's. Using a Denon 5910 as the source, the LSi's sound terrific. I know many of the folks in this forum hate using receivers to drive LSIs. In general, I would agree with that. However, the ES 9000 can do the job in a normal moderate size room (and no extra boxes hanging around).

wingnut4772

I really liked the Earthquake Cinenova with the LSis. 600 watts @ 4 ohms

LuSh

I've tried using a NAD 320BEE, SimAudio i-5080 and Krell 400xi. All did a reasonable job, the NAD was only spec'd at 50wpc but sounded more dynamic then the SimAudio. The SimAudio and Krell were more refined and sounded warmer.

I've since switched to Totem Sttaf speakers and their actually more efficient then the Polk Audio's.

zombie boy 2000

And how are you liking those Sttafs?

GATOR3000

Lsi15's Parasound HCA 1500A 315w at 4 ohms
OR
LSi15's ASL AQ1003-DT tube amp 30 wpc Class A

LuSh

The Sttaf's were a somewhat forced purchase instead of an upgrade. I've moved into new digs and my living room is long and narrow, because of couch and television placements I have to put the speakers on the long wall opposite the couch and listen to it near field. I only have 10ft from wall to wall so I needed a speaker that didn't take up as much breathing room. The

Totem's have a very musical nature to them that is alot like the Polk's in terms of ease, but they bloom more on most material. Having said that I miss the dynamic's of the Polk's on the heavy stands I had them on. I've been really trying to get the Totem's to have the same control and impact my LSi9's have but can't quite get there yet. I'm going to try filling the bases with Cat litter next weekend and see if I can't tighten up the bass. I've also thought about placing the speakers on granite slabs as the under padding in my new place is thin and I won't be upgrading the floors untill mid next year. The speakers are 5 feet apart and 1" from the back wall, nothing on either side of them.

I had to get rid of my 30" Sony CRT in favour of a Toshiba LCD. I really miss the picture quality of the Sony tube, the LCD's have come along way but after calibration it still isn't as deep and transition scenes can get messy at times.

zombie boy 2000

Interesting... I fully echo your opinion on "impact". However, I find the bass to be as tight and controlled as "tight" can be, just maybe not the most extended.

edit: speaking in reference to the Arro, of course

and sorry for the derail -- carry on:o

reeltrouble1

When I had some LSI, I put 900 watts to each of them, it was enough.

RT1