Polk Audio LSiM705 Floorstanding Tower Speaker, 22Hz-40kHz Frequency Response, 8 ohm Nominal Impedance, Mt. Vernon Cherry

SKU: PKALSIM705CH

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Review Summary

2020-03-04T12:36:42

Rated 5 out of 5

Worth the cost for the upgrade

Awesome speakers. Very happy with sound quality. Been using polk for about a decade. These were a massive upgrade from a couple rti8. Thought the 707's were a little overkill. These 705's have some great bass. Using an outlaw 5000 to power them. I have a denon x4300h. Can turn the volume up to 80 out of 98 and it's super loud. No reason to get any louder for me. They still had little left before distorting. Turned to 85 and the woofers were fully extended making it sound like it was struggling. The old rti8's started to sound like crap around 70 - 75. Not a bad price at $650 a piece. If you're thinking about pulling the trigger and you coming from a similar setup, just do it. You wont be dissatisfied. I promise. Running these with the 706c and it is a tad big for these. I tried the 704c first. It was not bad by any means. But when I decided to try the 706c, it made the 704c sound small in comparison. Dialogue and everything in general just seems bigger and better. Also have klipsch r-14s as side surrounds, couple polk signature s10's as rear surrounds and 4 klipsch rp-500sa's as mounted height atmos speakers in front and rear.

Robert T.

2020-02-19T09:25:19

Rated 5 out of 5

Polk Audio LSiM705

Love these speakers, real warmth to the sound, whether movies or music. They also look fantastic.

Rory S.

2020-02-03T08:19:50

Rated 5 out of 5

Quality

Product arrived in good shape thank you

JOHN F.

2020-01-10T10:44:05

Rated 5 out of 5

Polk LSiM705

The build quality was very high, and the Midnight Mahogany color looked better than I expected. Most importantly as a speaker, the performance so far has been excellent. For it's height and weight, it could use a wider feet, as it looked a bit tippy. Overall, it is a very satisfying purchase for a high-end speaker, and commend Adorama sales staff Sy for his excellent service.

VINCENT W.

2019-12-01T12:45:12

Rated 5 out of 5

Great price on Polk 705 speakers

Got a great deal on a pair of these from Adorama. Good imaging and soundstage. Needs a fair amount of power for full potential.

Steve C.

2019-09-20T08:05:08

Rated 5 out of 5

Great speakers

Great speakers, but very heavy. Well packaged though amd the bass really came alive after about 40 hours.

HILDA R.

2019-09-08T15:32:32

Rated 5 out of 5

Enjoying Polk LSiM705

These are more than enough for our media room. I have an lsim704c for center channel and just bought (yet to install) lsim702f/x for surround. So far enjoying the sound of these - more than enough sound for the 20X25 room. Have a 7.2 receiver so may spring for the side channels yet. Speakers were well packaged and no damage from shipping.

Christopher B.

2019-09-08T08:54:46

Rated 5 out of 5

Beautiful loudspeaker!

Delivers first rate sound field! Build quality is first rate as well!

Ronald C.

2019-09-08T08:52:39

Rated 5 out of 5

Outstanding speaker!

Fit and finish is first rate! Superb sound field!

Ronald C.

2019-09-02T09:41:32

Rated 5 out of 5

Beautiful sound and look

great sounding speakers

Peter N.

2019-08-21T08:19:22

Rated 5 out of 5

These are an amazing upgrade

Coming from the RTIA5, these are an amazing upgrade. Sound great, look awesome. Bi-Amp is definitely the way to go.

Vincent L.

2019-08-15T10:17:24

Rated 5 out of 5

Great speakers for the price

Fantastic speakers! Takes a few days for the bass to show up, great once it does! Very heavy, clear, loud, beautiful speakers!

Mike M.

2019-08-13T13:27:17

Rated 5 out of 5

Sound great. Highly recommend.

This speaker is huge. Make sure you have a nice area for these with some clearance from the wall so they can breathe. Turning the subs off and listening to high quality audio sounds amazing. The lows, mids, and highs are all represented very nicely. Adding the subs back and watching movies is also top notch. You'd be hard pressed to find some towers that match these for a bargain price. Make sure to grab a nice receiver that can power these towers so you can experience all they can offer. These are great for smaller rooms where the 707's might be a bit overkill. These, the 704, and a new receiver have completely transformed the audio in my man cave. Highly recommend.

Thomas P.

2019-08-12T09:12:16

Rated 5 out of 5

great deal on polk towers from adorama

great sound and customer service. could not be happier.

DANIEL J.

2019-08-04T09:07:27

Rated 5 out of 5

Stunning is not an overstatement

I ordered these a few weeks back from Adorama and they are absolutely stunning. I use them with a sub and a Yamaha receiver with 100 watt amplifiers that provides plenty of power. I would bi-amp them if my receiver was bi-amp capable. These are the best speakers I've ever owned and that includes a pair of Ohm Walsh 2's from back in the day. I also have a setup with the older generation LSI's but these are better. You cannot beat them at this price point to my knowledge. They are heavy though. You may want to have a hand truck available.

FRED R.

2019-05-04T07:19:01

Rated 4 out of 5

LSiM 705 spaciality

fine playback with HK 310 AVR. & Toshiba dvd player. pretty good upper & bottom ranges. used for jazz and vocals . good job.

R T.

2019-04-18T05:02:43

Rated 5 out of 5

You will be happy with Polk

I love my tower speaker

Joseph B.

2019-03-03T07:55:13

Rated 5 out of 5

The only regret in buying the 705s is not buying the 707s!

Very happy so far! Wonderfully full and rich sound. The tactile feel I get with these from kick drums is a noticeable improvement over the Pioneer Elite SP-EFS73s they're replacing. And the cabinet is gorgeous! Great speaker!

DEAN H.

2019-03-01T23:07:00

Rated 5 out of 5

Loving These

I decided to take a chance with these because I wanted to place them in a spare bedroom that I have converted into a dedicated listening room. I thought that the bass might overwhelm the room since I can't pull them out too far from the back wall. This is not the case. They sound great! I have used monitors and a smaller pair of Paradigm floor standers in this room but I wanted more of a visceral punch since I listen to a lot of rock music. These provide the punch while still sounding clean and controlled. The detail is there and yet these are definitely not a harsh or fatiguing speaker. Yes I am a happy camper and very pleased with these speakers.

Eddie M.

2019-02-24T09:33:02

Rated 5 out of 5

Great bang for a buck

A great addition to any enthusiast.

Roberto S.

2019-02-04T11:31:54

Rated 5 out of 5

Excellent speakers

These are excellent speakers. Great detail and imaging. Nice wide sound stage. And they play loud with no distortion. Base is tight and strong even without a subwoofer. But what I like most is that they sound great at low volume levels on appropriate material. I am using them as stereo speakers only with a 200 watt RMS per channel amp in a 20X30 great room. The construction is superb, although there is no hint of wood grain in the cabinet finish, even though these are called mahogany. I got these on sale so consider them an excellent deal at the sale price. Shipment and delivery were fast, and not a scratch on them.

Tom W.

2019-01-22T07:28:12

Rated 5 out of 5

GREAT QUALITY

Sound is great but the build is also great. Excellent high end speakers.

Ronald N.

2019-01-18T16:53:17

Rated 5 out of 5

5 star

Simply amazing in sound and body. Full Polk set up 707's fronts 705's rear 706c's center surround and 704c's ceiling and height. Could not pass the sale. 1/3 These speakers will be my last. Simply Amazing sound. Beasts

Dave B.

2019-01-04T16:45:20

Rated 5 out of 5

These will bring your old music new again!

I can honestly say that I'm hearing things in recordings, I've had for more than forty years, that weren't reproduced in any other speaker I've owned. For the price, I have not found better.

Alan B.

2018-12-30T09:51:22

Rated 5 out of 5

Simply Outstanding!

I've been looking at these Polk LSiM 705's for years! After purchasing a few from Adorama (on a great deal) about 3 weeks ago - all I can say is that I'm extremely happy with them! Adorama shipped them very quickly, and although the outer box was slightly damaged, the Polk box was fine. Set up was easy - using a Denon 4400 receiver and Crown XLS amps (also purchased thru Adorama) - sound (imo) is outstanding...stunning even! I've experimented just using the Denon to power them, and as others have stated, they simply sound more full and vibrant with more power! I'd describe them as very nuanced speakers - lots of detail across the frequency range. I've listened to massive amounts of music - that I've heard for many years over many speaker systems = these are the most full and capable I've heard! They're also awesome with home theater material! Highly recommended - both the speakers and Adorama! These are some very good reviews online - but a few folks mention

Kevin G.

2018-09-13T09:09:18

Rated 5 out of 5

Great speakers

Great speakers. Solid build, look great, and sound great. Using as front speakers in a 7.1.4 setup.

Nathan C.

2018-07-31T14:27:10

Rated 5 out of 5

Life changing

These are amazing. Great for both movies and music. Brings great range and power to the front soyndstage.

ANDY R.

2018-07-12T08:37:31

Rated 5 out of 5

An excellent tower at the right price

First off I'll say that I upgraded to these towers from some polk rtia3 bookshelf speakers. Im in an apartment and don't really need huge towers yet but couldn't pass up this deal and WILL need/want them when I move into a house. I keep the bass down because of my neighbors. These towers definitely have more bass than my rtia3's, and they have more clarity although it is not a HUGE difference. I think a bigger difference could be heard if I could turn the crossover on my amp off and listen to them fully. They are running off of a yamaha aventage a3070 150wpc receiver, and I wouldn't recommend using much less to drive them. I have to turn the volume knob up a decent amount more than my rtia3s to achieve similar volume levels.

SHAWN H.

2018-07-12T08:33:16

Rated 5 out of 5

When you want the best

If you can get this whole package on sale then you won't find a better setup unless you buy something used. I upgraded from a yamaha rxa1040, polk rtia3's (bookshelf), and still use my polk csia3 center since this one is WAYY too big for my setup. So far I notice a definite improvement in the clarity of the sound and obviously much more bass. I would say this receiver is the minimum you would need to drive these speakers as they need power. I have to turn the volume knob up noticeably more with these speakers vs my bookshelf's in order to achieve the same volume...

SHAWN H.

2018-03-14T09:09:51

Rated 4 out of 5

Good speakers

Very good speakers.

Premendhar N.

Polk Audio LSiM705 Specifications

  • Tweeter: Diameter

    1" (2.54cm)

  • Tweeter: Type

    Dynamic Balance enhanced ring radiator tweeter

  • Midrange: Diameter

    3-1/4" (8.26cm)

  • Midrange: Type

    Dynamic Balance driver with super cell aerated polypropylene cone

  • Mid / Woofer: Diameter

    5-1/4" (13.34cm)

  • Mid / Woofer: Type

    Dynamic Balance driver with super cell aerated polypropylene cone

  • Subwoofer: Diameter

    5" (12.70cm)

  • Subwoofer: Type

    Dynamic Balance oval drivers with super cell aerated polypropylene diaphragms

  • Total Frequency Response

    22Hz-40kHz

  • Upper -3dB Limit

    30 kHz

  • Lower -3dB Limit

    42 Hz

  • Nominal Impedance

    8 ohm

  • Efficiency

    88 dB

  • Crossover Type

    Orth crossover design

  • Tweeter/midrange Crossover Frequency

    2.8 kHz

  • Midrange/midbass Crossover Frequency

    280 Hz

  • Midbass/woofer Crossover Frequency

    100 Hz

  • Recommended Amplifier Power

    20-250 watts per channel

  • Inputs

    Dual gold-plated binding posts

  • Mid-High Array Enclosure Type

    Sealed

  • Subwoofer Enclosure Type

    Dual PowerPort bass venting

  • Dimensions

    Cabinet: 47 x 8.31 x 14.37" / 119.38 x 21.11 x 36.5 cm
    Footprint: 9.25 x 16.25" / 23.50 x 41.27 cm

  • Weight

    78 lbs / 35.3 kg

About Polk Audio LSiM705

FEATURED REVIEWS

These are an amazing upgrade

By Vincent L.

Coming from the RTIA5, these are an amazing upgrade. Sound great, look awesome. Bi-Amp is definitely the way to go.

These will bring your old music new again!

By Alan B.

I can honestly say that I'm hearing things in recordings, I've had for more than forty years, that weren't reproduced in any other speaker I've owned. For the price, I have not found better.

The Polk Audio LSiM705 Floorstanding Tower Speaker (Mt. Vernon Cherry) features lightweight, rigid cast aluminum baskets designed for precision motor alignment with unobstructed linear movement and ample venting. It includes a 5-1/4" mid-woofer of lightweight super cell aerated polypropylene for smooth blending with its dual 5 x 7" Cassini oval subwoofer radiators enhanced by Polk's patented PowerPort bass venting. Its 1" ring radiator tweeter, a feature usually found only in exotic speaker, reveals pinpoint details for realistic imaging. Use the LSiM705 in midsized rooms where you want the full-on impact of the legendary Polk sound.

Polk Audio LSiM705 Features

  • Polk's exclusive dynamic sonic engine design optimizes the midrange driver and the ring radiator tweeter in separate interior chambers for improved transient response, superior imaging and greater horizontal off-axis response
  • Enhanced, reengineered ring radiator tweeters extend top-end response for incredible details and realistic imaging
  • Newly designed Cassini oval subwoofer drivers, with more surface area than round drivers, dramatically improve low-frequency response for deep, well-blended bass
  • Extended Linear Motion voice coil design allows lots of movement in a limited space, eliminating impedance and extending mid- and high-frequency response
  • Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes
  • Polk's proprietary, patented Dynamic Balance technology allows engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds
  • Our super cell aerated polypropylene cone is the ideal balance of lightweight stiffness (for more efficient action with less distortion-causing flex) and superior damping properties
  • Exclusive, patented Orth crossovers increase lower-order power handling and smooth the impedance curve, for more efficiency and better high frequency response
  • High quality, heavy duty LSiM enclosure construction features 1.0" MDF on the sides, 3/4" MDF on the back and bottom and 1-1/4" baffles with substantial internal bracing and separate interior cabinetry for each driver
  • Super-thin zero-diffraction grilles lock in place magnetically and never obscure your sound
  • PowerPort bass venting is Polk's patented design for smoothly transitioning the air flow from the port into your listening area, eliminating turbulence and distortion, for bigger, more efficient, deep bass impact
  • All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems
  • Dual gold-plated, professional-style 5-way binding posts, for the most secure connection options
  • Dual binding posts allow bi-amp or bi-wire connections, for the ultimate in customized high performance audio

What's in the box:

  • Polk Audio LSiM705 Floorstanding Tower Speaker
  • Binding Post Jumpers
  • Owners Manual
  • Polk Audio 5 Years Parts and Labor Limited Warranty