Question 1

what is the depth needed in the wall?

Accepted Answer

PDF spec sheet indicates 2 3/8 " needed assuming mounted to 1/2" drywall

Question 2

Do you need a subwoofer for these speakers? Or do they sound ok without it?

Accepted Answer

I have a pair of these in a wall which are zone 2 speakers for a receiver which does music only and no subwoofer is possible (most receivers only have a sub input for zone 1). I have to say it sounds damn good, though I did place them up near the ceiling and close to walls to optimise the bass. So in this this situation you do not need a sub. If they are part of a home theatre setup then I'd recommend a sub (as I would with any speaker that is not floor standing capable to reaching some really low frequencies).

Question 3

can I paint it with my wall color?

Accepted Answer

Yes you can paint it your wall color.  The speakers come with a clear plastic insert which act as masks for the frame.  The preferred and probably the best method to paint the frames and grill is with sprayed paint...you can spray your custom paint with a kit available at your better paint store.  You can also use a small roller but be careful with the grill so that you don't fill in the hole. Several very light coats are best here.

Question 4

I need them for a concrete wall. is their any problem ? what's the depth of the hole I need to make ?

Accepted Answer

I think you have many challenges with installing the Polk RC65i into a concrete wall.  Overall dimensions (w x h x d) are 8 5/8" x 12 1/6" x 2 7/8".  The RC65i requires a 1/2" or 5/8" drywall to mount effectively.  If you have drywall over the top of your concrete wall, then this should work (although running the speaker wiring presents its own challenge).  The opening in the concrete wall will be larger than the drywall (yet another challenge).  I think I would look at a excellent Polk mini-speaker and surface mount that speaker versus tackling the "in ceiling speaker in a concrete wall challenge".  But - if you make it work, post your solution to the community as I'm sure they would appreciate the how-to knowledge.

ASIN	B00006I5O6
Age Range Description	All Ages
Antenna Location	For surround sound systems
Audio Driver Size	8 Inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Box Contents	2 White in-wall speakers, 2 White grilles, 1 Cardboard Mounting Template
Brand Name	Polk Audio
Colour	White
Compatible Devices	Home Theater
Compatible with Vehicle Type	Car
Connectivity Protocol	Aux
Control Method	App
Controller Type	Corded Electric
Customer Package Type	Standard Packaging
Customer Reviews	4.7 4.7 out of 5 stars (1,136)
Enclosure Material	Aluminum
Frequency Response	20 KHz
Global Trade Identification Number	00747192106911
Impedance	8 Ohms
Is Electric	Yes
Is Waterproof	True
Item Dimensions D x W x H	8.9D x 25.7W x 36.1H centimetres
Item Weight	2.5 Kilograms
MP3 player	No
Manufacturer	Polk Audio
Maximum Range	7 Metres
Maximum Speaker Output Power (in watts)	100 Watts
Model Name	RC85i
Model Number	AW0085-A
Mounting Type	Wall Mount
Network Connectivity Technology	Auxiliary
Number Of Circuits	2
Number of Audio Channels	2.0
Number of Items	2
Power Source	Corded Electric
Product Features	In-Wall Design
Speaker Size	8 Inches
Speaker Type	In Wall
Specific Uses For Product	Damp and humid indoor/outdoor placement
Subwoofer Connectivity Technology	Wired
Subwoofer Speaker Diameter	8 Inches
Tweeter Diameter	1 Inches
UPC	747192106911
Unit Count	1.0 count
Warranty Type	Limited
Water Resistance Level	Waterproof
Wireless Technology Type	No Wireless Communication Technology
Woofer Driver Diameter	8 Inches

Polk Audio RC85i 2-Way Premium in-Wall 8" Speakers (Pair) | Perfect for Damp and Humid Indoor/Outdoor Placement (White, Paintable Grille)(Pack of 2)

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