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Home / Product Category / SPEAKERS / In Wall Speakers / In Wall Subwoofers / Home Theater 150W In Wall Subwoofer 8" OSD Audio IWS8

Home Theater 150W In Wall Subwoofer 8" OSD Audio IWS8

Product code: OSD-IWS8

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Features & Specifications

In-wall subs are a great way to experience low frequencies effects without filling up floor space. An excellent in-wall subwoofer at an excellent price, the OSD-IW-S8W is an 8" passive sub with power handling up to 150 Watts. Installation is easy with our dog-ear bracket system that mounts to the sheet-rock after the cut-out hole has been made. The grille is also paintable to match your room decor and we include a cutout template that doubles as a paint shield.

Amplifier Suggestions
OSD Audio in-wall subs are passive devices, meaning they do not include a built-in amplifier like you would find in our active "box" subs. You will have to provide additional power, specifically a subwoofer amplifier, to drive it. We recommend our OSD SMP250 dedicated subwoofer amplifier that features 150 watts (mono) and front panel controls, phase switch, frequency control knob (35 Hz to 180 Hz) and volume control.

Features
. 8" Polypropylene Woofer
. Butyl Rubber Surround for High Performance
. Dog-Leg Mounting System
. Integrated Rear Dust Shield
. Spray Paintable Frame & Grill

Specifications:
. Power Handling: 25 - 150 Watts
. Impedance: 8 ohm
. Frequency Response: 40Hz - 200Hz +/-3dB
. Sensitivity 2.83V/1m: 87dB
. Cut-Out Dimension: 8 3/4 x 8 3/4" (222 x 222mm)
. Mounting Depth: 3 5/8"
. 10 Year Warranty
*Note: Requires Additional Subwoofer Amplifier

Specifications

Other Product Info

Inwall subwoofers are great for inwall/in-ceiling speaker installation jobs.

Accessories

OWNER'S MANUAL

  View Owner's Manual          

QUESTIONS & ANSWERS

9 Questions & 11 Answers
Ron L.
from Montreal, QC, Canada asked:
February 2, 2019
The speaker came with these foam black stickers but nowhere in the manual does it state what to do with them...
1 Answer
Hi Ron: The Black strips that come with the IWS8 you insert in the groove in the frame that holds the grill to the front of the speaker. You use it to make a tight fit for the speaker grille, so it does not pop out while moving lots of air while reproducing the low frequencies. TL/5397
Submitted by: Tim Leahy on February 15, 2019

Evan
from NH asked:
March 26, 2016
Hello, The SMP60 webpage indicates that the amp will work for this sub, but I think the answer to the question asked by Migoni says that it won't. Can you confirm? Also, when a subwoofer is in-wall, is there a lot of vibration in the wall? I was actually thinking of mounting this in an empty void under my kitchen counter and was wondering if you thought it would give off to much vibration. Thanks
1 Answer
Hi Evan: The answer did not fit the question, Migoni was asking about single IWS-8 In-Wall Sub, the answer said the SMP-60 would not drive dual 8". The IWS8 is a single woofer so I will need to edit that answer. You can build an enclosure under your counter. The stronger the box, the less chance of vibration being a problem. You will also want to stuff the box with Fiber fill. Question, are you using this sub as part of a home theater or just to add to a two channel system in that room? I hope that helps. Also see answers provide below Migoni question for enclosure size. You will be a little bit different since you will not be dealing with a normal wall cavity 3.75"depth between two studs 16" apart on center. So think 1.5 to 2 cubic feet. You can make it smaller if you use more fiber fill. Good Luck TL/3781
Submitted by: Customer Service - Q&A on March 28, 2016

Eric
from CT asked:
March 3, 2017
Does this connect to the front left and front right speaker jacks when using it as a 5.1 system?
1 Answer
Hi Eric: This just a 8" In-wall Passive Subwoofer that we recommend using it with our SMP60 or SM-250 Dedicated Sub-woofer amplifiers that connect to your Sub-woofer output on your Receiver. The Sub Amplifiers allows you to adjust the output gain, Phase switch and adjustable low pass crossover point. The SMP250 has a LFE input which is the output from most Audio Video Receivers that the adjustments are controlled by the Receiver (LFE: Low Frequency Effects) The Sub output is controlled just like the other 5 or 7 channels of surround. TL/4238
Submitted by: Customer Service - Q&A on March 6, 2017

george king
from ny asked:
May 24, 2016
how many of these subs can i connect on to a OSD SMP250?
1 Answer
Hi George: You can connect two 8 ohm subs in Parallel or four 8 ohm subs in Series Parallel. TL/3896
Submitted by: Customer Service - Q&A on May 25, 2016

Ryan
from Flint, Michigan asked:
March 29, 2016
I have the smp60 and the 8" inwall sub from OSD. For some reason I can BARELY hear the sub, only if I put my ear up to it. I have the amp all the way up. Thoughts?
1 Answer
Hi Ryan: Are you using this with your Home Theater or in a 2,1 music system? If you are using with an AVR, Audio Video Receiver have you checked the volume setting for the Sub-woofer in your setup menu of the AVR? Can you tell me what your basic. What do you have your hi cut filter set at, the knob on the left. Start with it set to 150 Hz all the way to the right. This is your cut-off for high frequencies and if you have it set to low and and your source may not go that low. Please let us know if this helps TL/3786
Submitted by: Customer Service - Q&A on March 29, 2016

Daniel
from Los Angeles asked:
February 9, 2013
Can this be mounted into the ceiling? is that advisable?
1 Answer
Hi Daniel, You can mount this subwoofer in the ceiling or wall. The IWS-8 has an infinite baffle design but will sound different depending on the material behind the wall or ceiling that affect the sound pressure level. CL/MA 1622
Submitted by: Customer Service - Q&A on February 11, 2013

Migoni
from Tucson, AZ asked:
January 25, 2013
I bought this Sub with SMP60 Sub-woofer Amp and I am unable to get any good bass out of it. I was expecting to at least get a bit of kick out of it but I have nothing. I have tried all of the settings that I can think of and nothing seems to be helping. Do I need to build an in wall box to improve performance or is there something I can do to quickly improve the sound out of the sub?.
1 Answer
Hi Migoni, The SMP60 amplifier does not have the power to drive a Dual 8" sub. We group this amp with the single IWS8 only. You need to exchange the SMP60 for the SMP250. Please go to the bottom of our home page under support. The link is: How to Return a Product. CL/MA 1580
Submitted by: Customer Service - Q&A on January 25, 2013

Jeff
from Lititz, PA asked:
April 1, 2012
What volume speaker box would I need if I wanted to build a box and mount it within my wall. Or is it not recommended to box these speakers?
2 Answers
Jeff, Back boxes are great with these speakers. A standard back box would be approximately 18" L x 17 3/4" W x 5" Depth CL
Submitted by: Customer Service - Q&A on April 2, 2012
maryanng794 is online. Tim: Hi Mary Ann Hi Steven: We are placing an image on both the OS790 and OM-SUB200 that will feature hook-up for the Sub Sat system. The OS790 is Frequency Response of 42Hz to 20kHz and the Sub200 is rated at 50 to 250 Hz. The Sub Sat system allows more focus by the OS790 to produce Frequencies above 250 while the Sub is dedicated to Low Frequenices only. Having a dedicated subwoofer in line with the satellite speakers provides more total ouput especially important for wide open spaces. Question #639 Sent at 1:47 PM on Monday Tim: Hi Jeff: If you are planning to build a box inside the wall versus in-Ceiling the measurements would be closer to 24" tall by 14 1/2" x 4". We would recommend using 1 x 4" for the frame and 1/2" Plywood or MDF walls. It is recommended using Silion chaulk to seal all the seams on the inside. The real benefit for enclosing especially inside the wall is to make sure your bass information comes out into the intended room and not out the backside. TL Answer #2 for 646 Sent at 2:03 PM on Monday Tim: HI Dave: The Speaker features two hand mounting screws to disconnect the speaker from the Bracket, Then just disconnecting the speaker wire then your done. You have the option of removing the Speaker Brackets if you choose and depending on the screws you select you might not have to take the screws all the way out just loosen them enough to slide the bracket and remove it. TL Question 648 Sent at 2:10 PM on Monday Tim: Hi Alonzo: You can connect up to two 8 ohm Subwoofers to the M3 (SMP250) Subwoofer Amplifier. That would limit you to two of the IWS8 subs or two of the IWS10 (Bigger woofers more cone area more output) or we even have the IWS88 Dual 8 inch subs that are rated at 8 ohm so connecting two pair of these gets you even more cone space while showing the SMP250 Subwoofer amplifier a 4 ohm load. Creating dedicated sealed enclosures also will help increase output as well. TL Q649 Sent at 2:16 PM on Monday maryanng794: Hi Steven, We are placing an image on both the OS790 and OM-SUB200 that will feature hookup for the Sub Sat system. The OS790 has a Frequency Response of 42Hz to 20kHz and the Sub200 is rated at 50 to 250 Hz. The Sub Sat system allows more focus by the OS790 to produce frequencies above 250 while the Sub is dedicated to Low Frequencies only. Having a dedicated subwoofer in line with the satellite speakers provides more total output, which is especially important for wide open spaces. Question #639 Hi Jeff, If you are planning to build a box inside the wall versus in-ceiling, the measurements would be closer to 24" tall by 14 ½" x 4". We would recommend using 1 x 4" for the frame and 1/2" plywood or MDF walls. We recommend using Silicone caulk to seal all the seams on the inside. The real benefit for enclosing especially inside the wall is to make sure your bass information comes out into the intended room and not out the backside. TL/MA
Submitted by: Customer Service - Q&A on April 2, 2012

Curtis
from Ottawa, ON asked:
December 11, 2011
What type of wire do you run from the amp to the this sub?
2 Answers
Two conductor (+/-) speaker wire, we would recommend our 14 Gauge 2 conductor CL3 rated in-wall wire as the best choice. TL
Submitted by: Customer Service - Q&A on December 12, 2011
Cutis, You would run standard speaker cable from the amp to the IWS-8 CL
Submitted by: Customer Service - Q&A on December 12, 2011

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