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Welcome to DIY Sound Group
NOTE: Price is per speaker but these are currently prepackaged and sold as pairs. If you need a single kit, please contact because the cost will be about $5 - $6 more for just one kit due to not being able to divide packaging and shipping costs between two.
The Overnight Sensations are likely one of the best selling DIY speakers of all time. The small size is deceiving because they're able to fill an average size room with plenty of volume and good bass response. These speakers also make great computer or bedroom speakers.
From the speaker designer: The idea here is to take the heart of the Overnight Sensations (big sound, small box, cheap price), but increase power handling and efficiency by adding a second woofer. The results should be quite satisfying and surprising to those who choose to build it. Wiring a second woofer in parallel gives us a few advantages: most importantly, the speaker is 6 dB louder (twice as loud), which also means the speaker will go 6 dB louder than its TM counterpart. There's a catch, of course. The impedance of the speaker is now cut in half. This means that you may need a more robust amplifier to drive it. Will your amp run these? If it's rated for 6 Ohms or lower, you're fine. Also, most chip amps and digital amps will have no problem running this speaker... this means that the Overnight Sensation MTM might lend itself very well to a compact "plug-and-play" system.
Product Highlights:
Minimum order is 2 speakers: If you ordered one in the past and need one for a center, please contact me. Kits are sold as full kits, sorry no substitutions or subtractions. Don't forget binding posts, terminal cups, or speaker spikes if you need them because they can be shipped for free with any kit or flat pack purchase.
Shipping Note: Most speaker kits currently ship for free, but flat packs normally do not. We try to get your order packaged and shipped in 5-8 days depending on how many orders have come in. Please read the 'Frequently Asked Questions' section for more information.
Outstanding quality enclosure, really cleans up well with proper sanding and some oil/ wax treatment. Woofers reach some impressive, clean lows that almost seem as a sub is on. Highs are nice and clear and balanced. Coming from a pair of KRK 5's, these offer a lot more presence and better imaging / staging. Honestly amazed at what these 4" drivers can do.
Super fast shipping and fantastic packaging, wish they were back in stock because I would order another pair!
I modified the build slightly and changed out the two rear-firing slot ports for 1x down-firing slot port of the same length and volume so that these could be wall-mounted. Overall I'm very impressed with the speakers. They replaced Infinity Alpha 40s in my living room which are towers with dual 6.5" woofers and overall much larger; the Overnight Sensations needed the subwoofer less than the Alpha 40s did and the OSs also blend with the sub better. This is my second set of speakers for DIY Sound Group and the packing and kit was again phenomenal: nothing damaged and easy to assemble.
I bought 2 of these to get me into the DIY world of speaker building at the advice of a friend. He has never built these or heard them but has read numerous reviews on them. I received them quickly and the packaging was excellent. I have read several reviews that mention how well things are packaged from here and all of that is true. I had a blast building these and assembling the crossover. Nothing too difficult if you have any sort of DIY skills and there are enough webpages with pictures out there to help if you need it. Also, if the crossovers are something you are worried about building yourself, I saw them on ebay for around 15 dollars a piece. I Glued these together and clamped them for 12 hours each time I glued them. I then sanded them smooth and then clear varnished them. I think they look good like that and I think there are several options for finishing them as well that would work just fine.
When I finished the crossover, I hooked up the speakers loosely (no box) just to make sure sound came out of them. I was very skeptical at that point that they were not going to be what I was hoping. I was wrong. Once I finished varnishing the box, I installed it all and then gave them a try. I was amazed at how "BIG" the speakers sound. I have blasted them and they get too loud before they distort. I'm running them on a Yamaha receiver RX-V483. I am thoroughly impressed with them and pairing them up with my LCR Apollo's I also built, they will be great surround sound speakers. I am probably going to get a couple more for my garage and I have recommended them to several others. I would not hesitate to buy these and build them if you are on the fence.
These are the big brother to the OS MTs and play as such. Same great sound signature but get louder and lower. Super fun to build and even better to listen to!
I've been using these for years now, both for TV/Movies and Music, and a little Gaming here and there. I'm very happy with them, they can get very loud if needed and for most music don't really need a subwoofer unless you listen to a lot of bass heavy EDM or similar genres.
Build process was very easy, glue the wood together, make the crossover which was just a few solder joints, and put it all together. I think it only took me an afternoon, not including the painting which I did over the next few days.
I'm happy with how they sound too, you'll want to keep them at least a foot from the wall or anything behind them as they are rear ported.
These are greater speakers than the sum of their parts. Don't get me wrong; the drivers are great for their price range. However, Paul Carmody took the original Overnight Sensation speakers and designed an enclosure and crossover for them that brings them to their extreme performance. I have heard better dual woofer designs, but I haven't heard any better at this price.
As for the kit, it was easy to put together. Minus the finishing of the cabinets, it took about three hours to complete these. You could complete with finishing in about four if you simply spray paint the enclosure. I do wish the front baffle was routed to create a more secure bond like the back panel is.
Just buy them if you are on the fence.
Warren
This was my first speaker build, so I decided to go with a kit that had most of the components already selected. The speakers sound amazing for music in my home office...I'm really pleased with how they turned out and it was fun to finish/assemble them myself. The sound is clear, balanced, expansive, and they play bigger than they are. Here's a couple pics: https://imgur.com/a/iDY2BHb
The kit itself was extremely well packed, shipped quickly, and the parts were chosen well. There were some *slight* defects in a couple spots on the wood but it was easy to fix those with wood filler/sanding. The price is amazing for what you get, I don't think Erich makes any money on these things. I'm hooked...onto the next set of speakers!
I recently ordered one of the Overnight Sensation MTM's to have for a center channel. The flat pack was easy to assemble and went together perfectly. The baltic birch was high quality and professionally cut. All of the proper crossover parts were included, per Paul Carmody's design specs. Everything was very securely packaged for shipping. I agree with the reviewer, John Booty, on his assessment of the sound qualities of the speaker. It is a great sounding speaker and I would highly recommend it. It is probably not the most ideal solution for a center channel, but even there it is doing a better job than my Bose VCS-10 was doing. I would also highly recommend DIY Sound Group!
These speakers get RIDICULOUSLY loud and pump out oodles of fat, clear, not-bloated bass.
Feed them a solid 50wpc from a Class AB receiver, or from a 100wpc Class D receiver, and they will absolutely rock the house. They sound good with any kind of music but really shine with rock, hip-hop... anything with a solid foundation of bass.
Their mids and highs are just okay. I think the vocals are a bit stuffy. Not bad, but not great.
For their low asking price and compact size, they're special. If their strengths line up with your needs I think these are absolutely one of the best values in the audio world.
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Speaker Kit Information |
Model: | The Overnight Sensation |
Designer: | Paul Carmody |
Frequency Response: | 45hz - 20khz (+/-3db) |
Power Range: | 5 - 70 watts |
Sensitivity: | 89db - 2.83v/1m |
Impedance: | 6 Ohm |
Tweeter: | Dayton ND20FA |
Midrange: | N/A |
Woofer: | 4" HiVi B4N (dual) |
Enclosure Type: | Ported |
Dimensions: | 6" W x 15" H x 9" D |
Kit weight: | About 12 pounds |
Assembled weight: | About 12 pounds |
Price Break Down:
2 - 4" HiVi B4N woofers: $34.80Packaging Material: $1.50
Paypal Fee: $2.97
Retail Cost: $106.44
Discount Cost: $99 with free shipping
Please read the 'About Us' section for more information on pricing structure and quality parts used.
Specific Overnight Sensation MTM Assembly Notes:
It is recommended that you lightly fill the speaker cabinet with polyfill without blocking the port. The tweeter is a push in style tweeter, so it's a tight fit and will need to be pushed in pretty hard. That's the way they were designed to mount. If your tweeter seems like it just won't fit, check for any excess glue or plastic on the tweeter mount which can keep it from getting started in the hole. Once it's started, push a little on the top, then on the bottom. Back and forth until it's all the way in. Note the reverse polarity when wiring up the tweeter. Paul has a lot of information and the crossover schematic posted on his site. Click here to read all of that information.
I recommend gluing up the box and leaving the front baffle off until the last step. Before gluing the front panel on, you might want to install the port. Before gluing the telescopic port together, check to see if it's wide end will fit through the cutout okay. Sometimes the plastic can be just a little bigger from the manufacturer. It will be tight no matter what, but as long as you can fit both sides of the telescopic section of the port through the hole, then you can glue it at 6" and install it later. If the plastic port seems a bit too big, you can either sand it a little bit or attach the outer portion of the port to the box and then glue the telescopic portion inside so that the total length of the port is about 6" long. It doesn't have to be 100% perfect, just close. Then go ahead and glue on the front panel. That paragraph sounds a bit harder than it actually is. Please be sure to read the general tips below before starting your build.
Recommended Tools and Supplies:
General Tips:
Crossover Assembly:
Screws and Gaskets:
Stuffing or Lining the Speaker Cabinet:
Links to Build Threads for this Speaker:
Frequently Asked Questions:
* Why does it cost $5 more for one kit? Answer: I divide shipping costs and packaging material between two speaker kits to cover "free shipping". But the cost to package and ship a single speaker is almost the same as a pair, so the $5 lost from the second speaker has to be added back in.
* What length do the ports need to be? Answer: The designer recommends them glued at 6" long.
* Does this kit come with a circuit board to assemble the crossover on? Answer: No, most people assemble them on a small thin piece of wood.
* Do I need to use a subwoofer with these? Answer: For music, these can be run without a subwoofer.
* Do the woofers get wired in series or parallel? Answer: They should be wired in parallel.