Polk Audio 70-RT
Crutchfield Customer Review (What's this?)
Easy install and nice sound
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This great-sounding speaker hides in plain sight
Polk's Vanishing Series 70-RT speakers stand out audibly — not visually. Your favorite rooms don't have to be silent any longer just because you can't or don't want to put free-standing speakers there.
Polk's clever design yields big bass from a smaller space
Polk ingenuity fills their Vanishing Series speakers to overflowing with clear, full-range sound. Each model has three drivers — a tweeter, a mid-range and a woofer — packed into a smaller than an average space. Dual port bandpass technology ensures that you'll get deeper sound with a diminutive-sized speaker. Their paintable, seamless-profile magnetic grilles make it simple for these speakers to fit perfectly into your surroundings.
Might as well invite the whole speaker family over
Get two 70-RTs to listen to music in the den, or add more for a great sounding home theater. They're also a pretty close sonic match to Polk's renowned free-standing RTi speakers. Any way you choose, you'll get harmonious results.
An optional in-ceiling bracket is recommended for installing the 70-RT speaker in a home with new construction.
Easy install and nice sound
Anonymous, Elk Grove, CA
Average Customer Review(s):
Easy install and nice sound
I researched many in ceiling speakers and after much debate, I ordered four of the 70RT's for my living room. They are used just for music, and they sound great. The 5 X 7 woofer does a great job with mid bass and punches enough deep bass with some volume. I am powering them with an AudioSource AMP-310 and they perform better than I expected. Well worth the money!
Pros: Easy installation, great sound and clean appearance!
Cons: They are over 8" deep, just keep that mind for shallow installations!
I was a little skeptical of using in-ceiling speakers. After numerous calls to the fabulous Crutchfield team, I landed on 3 of these for the L-C-R i used the 70-RT's for the rear. I haven't had too long to enjoy them for movies. But, for music, they do a really nice job. And they aren't taking up valuable floor space where my wife can put stuff...lol Haven't added the sub yet. Probably in the next few weeks. I'll copy this review into the 70-RT field as well. Thanks Team Crutchfield! great advice as always!!
Pros: great sounding as rear surrounds
Cons: None yet
Installed throughout my house and the sound is very good.
These speakers are great! Very very clean sounding with easy installation. I run these with an older onkyo model and I can't turn them up all the way with out getting blasted out of the room! Very good speakers.
Great outstanding sound ever, polk hut a home run with this speaker! Not that many affordable 3 way ceiling speakers out there but this one is a must have!
Pros: the sound Is clear as can be and the magnetic screen is very helpful
Cons: It's a little big, needs about 8 inches of clearance in ur ceiling
First, I must admit that I am a huge Polk Audio fan. In fact, this is my fifth 5.1 system built using Polk Audio speakers. Since my new home was prewired for in-ceiling speakers, I decided to give the Polk Audio 70-RT speakers a try. Initially, I chose 620-RT, but I decided to step up to the 70-RT because I wanted the clarity that 3-way speakers usually provide. I installed 5 70-RT speakers (LF, Center, RF, LS, and RS) Sunday pairing them with a 10-inch Velodyne subwoofer and a Marantz SR5010 receiver. The system sounds great and my wife loves the near invisibility of the system. Since the speakers have only been installed for a couple days, I only gave them 4/5 stars. I'll update the review after everything is calibrated and broken in.
Pros: crisp highs, in ceiling mount means happy wife, good low end response considering the size and enclosure
Cons: deep mounting depth might be a problem for some
I purchased these in spite of advice to use smaller, cheaper speakers for rear surround. I should have heeded the advice. These seem like perfectly fine speakers. Can you resist buying what's appropriate when you could buy fancy? I couldn't. I'll take consolation when watching movie scenes featuring bullets whizzing by. The rest of the time I'll forget they're there.
These speakers were easy to install and sound amazing! I love them and they help make my surrounnd system sound terrific.
Pros: Easy install template, great rich sound.
Easy to install and a great sound for the price.
This a great speaker. I worked with Crutchfield to set up what I needed and it sound awesome. Great highs and mids. I am using with denon avr 887.
Pros: Great speaker at a great price. Easy install comes with templet you need for mounting
Cons: I don't have any cons could not be happier with purchase. Or support. Buyer for life
Awesome clarity love them
Easy to install and sound great, would highly recommend to others.
Pros: Easy to install, great sounding, used for front and center channel and paired with 80F/X-RT for surround and PSW-111 for bass.
I endorse the 70-RT. it worked properly for my 5+1 config.
Installed four of these about a month ago in the basement ceiling. They are coupled to a Pioneer Elite SC-71 receiver with Polk RTiA7 fronts, a Blackstone TL3 center, and a DSWpro440wi and it sounds fantastic!! The supplied templates made it easy to install and my wife is happy too because the surrounds are out of the way.
Pros: Sounds great, magnetic covers fit perfect
Cons: None so far
Awesome sound. Much better than the Bose AM10 System they replaced.
I have been a long time loyal Polk follower and have always been pleased with them, so this is very hard to write. When doing a recent kitchen remodel, I decided to replace the old 'builder grade' 6 1/2" ceiling speakers we had with these Polks. My hope was that I would be so blown away with them that I would replace all of the remaining speakers in the rest of our rooms for our whole house audio system (10 additional speakers). First of all, these were slightly smaller than the previous 6 1/2" speakers so the tabs wouldn't catch. I was able to fabricate a spacer ring to make them work (this may not be any fault of Polk, but do measure your cutout first if replacing existing speakers.) Next, these Polks are DEEP. Yes, I read the specs before ordering and new the dimensions, but I did have to make some accommodations that 'normal' flat-lying ceiling speakers wouldn't have to have. After spending an entire afternoon installing them, I was severely disappointed in the sound. I drive the whole house audio with a high end Denon so I don't believe that the source is the problem. We don't crank the music; we just enjoy nice background music. The 10 year old builder-grade speakers sounded better. They are definitely not worth the $ to finish out the house.
Pros: They do look nice!
Cons: Sound is poor. Deep installation depth. Expensive.
Sounds great for the front LF CTR RF surround .
Pros: Clean look.
|Quantity in Package||Single|
|Woofer Size||5 x 7|
|Power Range (Watts)||10-125|
|Connector Type||Spring posts|
Vanishing Series In-Ceiling Loudspeakers: The Polk Audio Vanishing Series 70-RT is a high performance in-ceiling loudspeaker designed to bring high-quality music to any room or transitional space in your home. It's Polk Audio's smallest, most "invisible" full-range in-ceiling speaker. The Polk Audio 70-RT's lightweight polypropylene cone & sensitive silk dome tweeter can be angled for superior off-axis performance. The innovative addition of the woofer driver behind the main speaker adds depth & dynamics to this compact in-ceiling speaker. The in-ceiling speaker's Reflective Room Compensation Switch digitally compensates for "reflective" rooms, giving you placement flexibility.
Dynamic Balance Technology: Laser-imaging technology allows Polk Audio engineers to see the entire vibrating surface of a driver and tweeter. This allows the engineers to actually see performance-robbing distortion develop on the speaker cone. Using this data, they can determine the Dynamic Balance of their high-tech materials, and alter the geometry and construction of the speaker to effectively tune out the offending resonance. Exclusive Dynamic Balance Composite Material Technology delivers sound that is effortlessly clean and clear, even at lifelike volume levels.
Klippel Optimized Motor Structures: The Klippel Distortion Analyzer allows Polk engineers to optimize each driver's motor structure, voice coil alignment and suspension to insure smooth, unimpeded movement even at extreme listening levels. This is especially important in the shallow depth area afforded an in-ceiling loudspeaker.
Full-Range 3-Way Driver Array: The Vanishing Series 70-RT in-ceiling loudspeaker employs a new innovative patent-pending design from Polk that's like having a full-range, full-size speaker in a small inset lighting fixture. To do this, Polk designed a deep well and mounted a 'Cassini Oval' woofer above & behind the main driver array. By adding a woofer for low frequency response, the midrange & tweeter is freed up to provide more efficient detail. This innovative deep diagonal positioning allows the 70-RT cutout to be just 6.5" in diameter. This full-range 3-way driver array results in the kind of broad coverage and big performance usually achieved only with bigger box speakers. The 70-RT in-ceiling loudspeaker features the following three drivers.
Reflective Room (Tweeter) Compensation Control: An easily accessible Reflective Room (Tweeter) Compensation switch allows you to make detailed adjustments to optimize the sound for any installation. The switch can be used to digitally compensate for harsh reflective surfaces. The switch doesn't merely reduce high frequencies, it actually allows you to "notch-out" a specific area of the spectrum (3,500-6,000Hz) where room acoustics most often interfere with performance. The switch has two settings:
Timbre-Matched: The Polk Audio Vanishing Series RT in-ceiling loudspeakers have been timbre-matched with Polk's RTi Series loudspeakers. Timbre-matching with the same internal components, and the same lightweight polymer composite cone material, insures utterly seamless blending from speaker to speaker. Timbre-matched speaker components will insure the same true response throughout your system.
Frequency Response: The overall frequency response of the in-ceiling speaker is 34Hz to 27kHz, and the -3dB frequency response is 48 to 25kHz.
Dual Bandpass Ports: Bandpass Ports are the way to go when you want high efficiency in small enclosures. The Vanishing Series in-ceiling speaker employs dual Bandpass Bass Ports, smoothly funneling the angled woofer's detailed low-frequencies down around the midrange and tweeter array. The port design eliminates "chuffing", so the small, practically invisible in-ceiling speakers achieve superior full-range blending and broad coverage with surprisingly deep bass.
15° Angled Baffle: A 15° angled baffle allows you to direct the mids & highs for the particular application; simply by rotate the speaker in the desired directions and tighten down the rotating cams.
Wafer-Thin Sheer-Grille: The Polk Audio Vanishing Series in-ceiling speakers feature Polk's exclusive wafer-thin Sheer-Grille, a magnetically secured grille that protrudes only 7mm from its surroundings. The Sheer-Grille can be painted to match your décor, making it virtually indistinguishable from its surroundings. The Sheer-Grille has nearly transparent, ultra-small perfs, and are acoustically inert, for dynamic, unimpeded sound and more uniform coverage, even in larger rooms.
Note: When painting the grille, it is highly recommend that you use a can of spray paint matched to the color of the surrounding ceiling. Brushes or rollers should not be used to paint the grille, as this will clog the perf holes.
Gold-Plated Spring-Loaded Posts: The 70-RT has a gold-plated pair of spring-loaded binding posts that can accept up to 12-gauge wire, single banana plugs, or pin connectors.
Applications: You can use the Polk Audio Vanishing Series in-ceiling loudspeaker as in-ceiling rear surrounds to complete an RTi Series speaker system, or for superior dynamics in practically invisible multi-zone music systems.
Rotating Cam System: The speaker utilizes a rotating cam system to ensure a secure, vibration-free installation. There are four rotating cams to hold the speaker securely to the ceiling.
Note: There is an eyebolt on the back of the speaker that can be used for an extra measure of installations security.
Installation: The 70-RT can be installed in new or existing construction:
|In-Ceiling Dimensions||Model # 70-RT|
|Overall Dimensions (with grille)||Diameter =
Depth = 8.625"
|Cutout Dimensions||Diameter = 6.5"|
|Total Mounting Depth||Depth = 8.5"|
|Mounting Depth (using 1/2 drywall)||Depth = 8"|
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Fit unique installation application better than any other speaker I could find. Sale price. Polk Quality. [ Carlos Apr 27, 2017 ]
Sale and reveiws [ Jeffrey Apr 25, 2017 ]
have a Denon ATMOS receiver and want to take advantage for movie watching. Have had great experience with Polk through the years. [ Thomas Apr 23, 2017 ]
I researched many speakers, and these for money will give me the best bang for the buck. The 5 X 7 woofers offer a better, tighter bass response than most 6.5 inch speakers I have heard. I have used Polk in several other houses and have always had great results. [ Brian Mar 18, 2017 ]
I like the sound of the Polk speakers I have installed and I wanted a bit more power than the smaller ceiling speakers. [ Paul Nov 30, 2016 ]
open floor plan in new house so had to go with in ceiling surrounds [ Jeffery Aug 24, 2016 ]
They were on sale [ HECTOR Aug 10, 2016 ]
combination of price point, form factor, quality and reviews [ Kent Jul 03, 2016 ]
Yes, these can be slightly angled. [ Riley Sep 19, 2015 ]
Yes these do aim straight down - there is an angle to the main driver but it is funneled down a tube and projects the sound evenly out of the front of the speaker with the midrange and tweeter - the speaker is well balanced and sounds great. I would suggest you download the user manual and check out the line diagrams on page 4 - it will show you how the speaker is configured. [ Christopher Sep 18, 2015 ]
They are placed angular behind the face plate aiming down. If you are planning for front three then voice is modular and perfect as per placement. But if placed one or two odd in corners then you would definitely hear better facing down [ PANKAJ Sep 18, 2015 ]
They have a little bit of an angle. [ Nathan Sep 18, 2015 ]
They aim straight down once installed. The electronics and rear housing do sit on an angle. They work and sound great in my 5.2.4 Atmos setup. [ Mark Sep 18, 2015 ]
The price is per single speaker. [ Jeff Dec 16, 2013 ] Staff