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Due to job relocation, this audio hobbyist will be on hiatus until I get settled in my new home. There’s no indication just how long I’ll be posted in Northern Alberta. My first winter here saw temperatures regularly dropping to - 40°C.  Now that’s cold!

 

I decided that renting a small house was the best option as the odds of me relocating again within 6-18 months, are high. A small apartment doesn’t do well when you have a truckload of woodworking tools, a bicycle, lawn mower and all the appliances. While the apartment rent option was decent, I had to look at a storage unit as for all my other stuff. The commute to work was also a little bit longer. As a result, I decided on a house instead, equipped with a detached single car garage. This was a much better option. I can now bike to work in 5 minutes with easy pedaling.

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The house is a military accommodation style, circa 1950 un-renovated bungalow. The 1950’s style kitchen seems like it still has the original cabinets, with maybe 10 coats of paint on them, and probably the smallest bathroom I’ve ever had. Linoleum floors in kitchen and hardwood in the other rooms.

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The basement leaks when it rains hard, with a few inches of water which eventually migrates to the laundry floor drain, at the opposite of the house.  Yep, on downpour days, I virtually have a small river in the basement. Can't wait to see what it’ll be like in the spring, if that drain ever freezes up.

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The first bedroom is roughly 11'x10.5' and the “master” is 11'x12'. Man… do I miss my old house!

The living room is an audiophile nightmare. Dimensions are 12'x14' with doorless openings on two walls.

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The electrical system is obviously original with the system drawing power from a single GFCI receptacle on a 15A circuit. Certainly not gonna put the two big Krells and run two two dedicated 240V lines here.

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Since I'm concerned about the basement flooding and the potential water damage, I decided to put the 6x18" and my 2x15" bass bins in the living room. All of my electronics are sitting on 3' and 5' high shelving. Hopefully this will be good enough for the next downpour.

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With the subwoofer in place in the living room, I'm already a bit committed to placing the laptop and the horn+tweeter on top. Listening to a tabletop FM radio in the living room isn’t satisfying at all, as it appears there’s only Classic Rock and Country music out here.

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So, knowing the end result will be disappointing, I still decided to assemble a living room system. It took me two weeks just to find the motivation to plug some wires in. No, I won't put any acoustic treatments in here, as it’s pointless for my anticipated tenure at this base.

All speaker wires are custom cut inexpensive #14 stranded. Not interested in going too crazy, as my silver cabling is carefully boxed away, with humidity absorbent pads.

Now for the part that interests me most… the living room setup.

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Despite being similar to the kitchen in Ontario, this room is very much smaller. This pretty much guaranteed to be bad sounding, due to a total lack of acoustic treatment.  I may crack under the pressure, and add 2-3 panels, but I have no room and no motivation, knowing this room’s potential is severely limited.

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Listening at moderate levels excites plenty of room mode, and the notes seem to never die. Imagine 20 kids yelling in an indoor pool.  A sound that seems to decay forever. Never been exposed to this. This is seriously bad...

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I literally shake the house on bass content. The neighborhood can hear me like crazy, and the hardwood floors shake so much from the subs, that I get a full body massage on the couch. Not good. Not good. Not good.

Below is a modest attempt to add acoustic absorption. (I still have a lot in the garage)

No holes were made on the walls. All equipment sat on something and positioned so it didn’t look too hideous. (I know it is subjective here). I'm still single ATM and the living room sure reflects this...

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With just a few panels on the front wall, the improvement in sound was noticeably better, but compared to the Ontario house… I'm still far behind. I guess I’ll simply have to live with this for a while. 

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Note that I've added an Amazon Alexa home assistant device (middle, the black cylinder). I love this little thing. “ Hey Alexa, Google Country Music Stations in Cold Lake Alberta”

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I also did some measurements. As expected, nothing impressive. Even with more DSP tweaking, the time delays won't improve and would remain messy.

Update March 2019
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The new 4 x 15" bass bins are operational!

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Preliminary listening tests tend to be very positive versus the previous dual 15".

Still lots of testing and calibrating to do though.

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The soundstage from placing the horns more toward the edge seemed to be better as well.

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Stay tuned…more to come

 

Update May 2019
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Back to 5 way (4 active + super tweeter via passive crossover)

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6 x 18" subwoofer in sealed cabinet (Q~0.7, tad small box but temporary in my mind)

4 x 15" bass bin on oversized sealed cabinet (Q=0.45 or about)

1x Radian 950PB in 340hz JMCL horn 

1x Celestion CDX1-1425 (modified) in custom 2000hz JMLC horn 

1x Beyma CP22 supertweeter passively fed from the CDX1-1425 signal and having 2nd order crossover

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All amplifiers are DIY and Mono-Block type. The longest speaker wire is about 6"

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Despite being fed via a passive crossover, the Beyma CP22 super tweeter addition brought air and detail that the CDX1-1425 alone couldn't reach, highly recommended. I wonder how a TAD ET-703 would compare?

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Can't wait to buy a real professional audio interface to replace my Mini DSP 4x10HD with only 8 analog outputs.

After the 2019 Munich high end show, Merging Technology product offerings grabbed my attention, but their HAPI seemed to be limited to 16 analog output. Lynx, Antelope and Burl are interesting too.

 

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