By Rob from Baltimore, MD on January 17, 2013
I want to put these in my home theater that I building from scratch. The walls are open and I build any size enclosure for this subwoofer in the wall. I've seen lots of questions regarding this topic; but, no firm answers. What size is recommended?
By Customer Service - Q&A on January 20, 2013
Determining the right size of the subwoofer depends on many variables, including room size and shape, surround sound speaker locations, etc. Without more information on your room, we can't give you a definitive answer. However, consider that the better AV receivers feature dual subwoofer outputs for a reason. Based upon the natural characteristics of the low frequencies in your room, a single subwoofer will tend to have dead spots. Also. it is easier to find the ideal placement of the subwoofer when using an external powered subwoofer. Take a look at our learning section for some helpful information on home theater subwoofers.
By Jim from Kansas City, MO on January 3, 2012
I have studied hi-fi for many years and have found that the speaker's box is very important. Did you find that placing the speaker in a wall between the studs and top and bottom plates provided a suitable box? Did the subwoofer rattle the sheet rock or pop the nails? I have designed actual "sealed" boxes and installed between the studs and it really helped the speaker performance. I did not have any Theile/Small (T/S) parameters from the manufacturer to use in modeling speaker performance. Are T/S parameters available for all in-wall speakers?
By Customer Service - Q&A on January 4, 2012
We could not agree with you more! A custom enclosure is very important, especially if you want more sound directed into the selected room versus out the back wall. These are actually excellent woofers at factory-direct pricing. Even if you add the cost of the custom enclosure, it is still a great value. I believe these subs are considered an infinite baffle so they can work in a number of different size applications. We do not have the Theile/Small parameters but will try an obtain them and add them to our features and specification on our site. Iwill try and email them to you as well. We would be interested in what design you come up with. Perhaps you could post some pictures for us.
By Joe from Canada on November 23, 2012
Are T/S parameters available yet?
By Customer Service - Q&A on November 25, 2012
I have placed a second request for the Thiel/Small Parameters. Sorry for the delay.
By Raj from NY on November 26, 2012
Is this sub considered as an "infinite baffle" type?
By Customer Service - Q&A on November 27, 2012
This sub is an infinite baffle, so it is adaptable to most in-wall applications. We recommend reinforcing the wall behind the sub if possible. The wall behind the subwoofer will receive more pressure and more bass than the front wall. New construction allows you to build an enclosure utilizing the studs. With retrofit construction, you may need to reinforce with more fiber fill than normal.
By Jasmine & Brian from Pacifica, CA on November 27, 2012
Are there any limits as to what type of amplifier one Can use with this Subwoofer? We are planning on building our own Monoblock Vacuum Tube Amplifier (such as the Velleman K8010 Monobloc Vacuum Tube Amplifier Kit). Would this sub be ok to use with such an amplifier? Any extra special wires needed? We feel that the larger the wire, the better the sound output, so even though it is only about 30' of wire that will be needed, we feel to choose a 12AWG for our application. What are your thoughts?
I read some of TL's answers to other customers questions and hope we can get some advice as well.
Thank you very much!
Jasmine & Brian
By Customer Service - Q&A on November 28, 2012
Answer:Hi Jasmine and Brian,
This subwoofer should work for your application; in fact you should consider utilizing two of these subs. According to the specs of the Velleman Monobloc, it will handle a 4- or 8-ohm load so using two of the IWS-10 in parallel would present the 4-ohm load. This will maximize the output from your system. Is this part of an audio system or primarily for home theater? If it is for home theater, consider separating the two drivers in the room; perhaps one in the front and the other in the back. If you mount these in the wall, it’s important to build an enclosure for isolation behind the woofer. (We are looking into the Thiele/Small parameters along with some recommendations of enclosure sizes.) These are infinite baffle and are designed to work in a broader range of applications (space available).
Regarding the 12 gauge, bigger is better for running low frequencies. We typically recommend a minimum gauge on speaker wire, rarely a maximum gauge. For example we recommend a minimum 16 gauge up to 80 feet and 14 gauge up to 200 feet. A 12-gauge wire would work in your application, especially for 30 feet.
By ma from LA on April 6, 2012
Shipping Weight and Shipping Free within the U.S?
By Customer Service - Q&A on April 6, 2012
Answer:Hi Ma, This item does not include free shipping. While many of our products do include free shipping, some are priced so low that we have to charge for shipping. CL/MA
By Eric from Middletown, Pennsssssssylvania on June 17, 2012
Want to add 3 of these in a room with 6 in ceiling speakers 4 in wall and keep the existing tower speakers up front.. 12 to 14 speakers in all.. Plus the 3 in wall Subs..
Will1 large amp do this ..? Like 900 watts..? Or do the Subs need their own Amp.. If so How do 2 Amps one running the speakers the other running the Subs work together?
By Customer Service - Q&A on June 18, 2012
I am assuming you are planning on connecting all the speakers in the room to the same source which means a rather large room or overkill in a small room. My suggestion would be looking at our AMP200 for your tower speakers, our MX1260 (12 channel amp) for your in-ceiling and in-wall speakers and then a SMP250 Subwoofer Amplifier for powering the Subs. I would suggest four IW10S wired series parallel so the sub amp would see a 4 ohm load (versus three wired in parllel). Note the AMP200 (or AMP300) would be plenty for your Tower speakers and the MX1260 would alleviate worrying about impedance matching since you would have 12 discrete channels or six stereo zones with a choice of two universal buss sources or direct input at each channel. Please contact me directly for further assistance and clarification. We would love to take care of your other speaker needs and wiring if you have not made that decision. I can even furnish you with a wiring diagram if needed. My email address is firstname.lastname@example.org.