In-Ceiling Back Enclosure (Pair) for PID 4103, 6 1/2" In-Ceiling Speaker
    Product # 11941
    In-Ceiling Back Enclosure (Pair) for PID 4103, 6 1/2" In-Ceiling Speaker
    Product # 11941
    Size : 6.5in
    6.5in 8in
    In Stock This item should ship today (10/26/2016) if ordered within 1 hour 41 minutes

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    In-Ceiling Back Enclosure (Pair) for PID 4103, 6 1/2" In-Ceiling Speaker

    Improve the sound quality of your in-ceiling speakers using these In-Ceiling Back Enclosure from Monoprice!

    This flame-resistant ABS enclosure is designed for use with the Monoprice 6-1/2 inch Fiber 2-Way In-Ceiling Speakers (PID 4103) or other speakers with the same dimensions. Using an enclosure improves bass response and the overall sound quality will be tighter and more focused.

    The enclosure has pre-stripped and tinned wires inside for connecting to the speaker. On the outside it features 10mm push terminals to connect the speaker wires from the amp. It measures 8.0" in diameter and is 5.1" deep. It includes four speaker mounting screws and a piece of acoustic stuffing.


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    17 Reviews

    75.29% of the reviewers recommend this product



    • Nuzz,
    •  Farmingville, NY 
    • 7/17/2016 9:07:40 AM

    Pros: Perfect fit
    shields speakers

    Cons: None

    I brought 6 of these for my 6 4103 speakers. My ceilings have blown in insulation and these backboxes fit the speakers perfectly and made the installation easier. I would not hesitate to use them again.

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    Does not work with Energy EAS-8C Speakers

    • Bryce Bolton,
    •  West Valley City, UT 
    • 6/27/2016 9:59:33 PM

    Pros: Build seems good

    Cons: Does not work with the Energy 8" in-ceiling speakers

    Since Monoprice speakers are mostly clones of Energy speakers you think this would work with their 8" in-ceiling speakers. Nope.
    So, so close but the corner of the crossover board does not clear the edge of the enclosure.
    Due to this I purchased a useless product, but I hope this saves others from making my mistake.

    by Monoprice Administrator
    Hello Bryce,

    Thank you for your review and I am truly sorry these items were incompatible with your other speakers. I can assist you with a return if you prefer. Just let me know the order, thank you!
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    Must-have for the 4104s!

    • Anonymous,
    •  Waynesboro, PA 
    • 5/23/2016 8:11:08 AM

    Pros: 1. Build Quality
    2. Sound Quality (with supplemental acoustic treatment material)

    Cons: 1. The internal jumper wiring is thin (20AWG?). Could be easily upgraded, except the connectors were epoxied onto the posts.
    2. Speaker terminals will barely accommodate 14AWG speaker wire.

    These back enclosures are an exact perfect fit for the PID 4104 speakers. Installation was straightforward. I installed the enclosure on the speaker prior to installing the speaker in the ceiling. The supplied square of poly-fil is rather inadequate, so you'll want to have some kind of acoustic treatment material to put inside the enclosure to get the best sound.

    I subtracted 1 star for having to add additional acoustic material and also for the thin internal jumper wire.

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    Great enclosure

    • Anonymous,
    •  ,  
    • 5/16/2016 9:23:12 AM

    Pros: Build is strong, tightly seals the speaker, and improved the sound quality of the speaker.

    Cons: Cables that connect to the spealers are a little short, but not impossible to connect.

    Have an office with 20 of the speakers with out the enclosure, they sound great. For home i bought 2 speakers and decided to try the enclosure. To my surprise there was a difference in sound, they are of high quality. Highly recommended

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    Almost a great product, but not quite

    • Ted L.,
    •  Winter Park, FL 
    • 3/14/2016 12:52:09 PM

    Pros: Good housing for the 4104. Insulates and focuses sound. Solid plastic enclosure. Good idea.

    When putting these on the 4104 speaker, the housing didn't really line up quite properly until I had all the screws in and tightened. Don't be surprised if it looks like the enclosure is just slighly off from fitting exactly- but don't worry. Once the screws tighten it fits perfectly.

    Cons: Terminals aren't large enough to fit low gauge wire.. If someone's buying these they care about sound and quality and may likely have a lower gauge setup.

    Cables connecting enclosure to speaker are too high a gauge IMHO, Should be better quality.

    No instructions as to what to do with the insulation.

    Didn't detect a huge difference in sound quality, but it all in all sounds good and focuses the sound in the right area.

    This is really just to second comments from others. They fit the 4104 well. My speakers sound good with these though. That said, I didn't notice a profound difference. Nonetheless, they seem solid enough.

    Downsides are there were no instructions on where to put the insulation pad (I just centered them over the back of the speaker which I think is about the only place that makes sense), I also use high quality 12 gauge monoprice speaker wire as it runs a long distance, and it didn't fit in the push terminals. I eventually kind of got the wire crammed in there enough and the speakers work, but this was a disappointment to say the least and at some point I'll probably need to reseat the wire using an 'upgauging' band-aid to fit properly in the terminal. Also, the interior wires that connect from the enclosure to the speaker should be a lower gauge wire as well. They are really thin!

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