top of page
This site was designed with the
.com
website builder. Create your website today.Start Now

​

As of December 2017 (Trenton,On house)

 

  • Low Cost B&C DE35 tweeters next to some Transducer lab magnesium 26mm dome tweeters. I routinely swapped them out.

  • Eminence cast aluminum H2EA horns loaded with an PylePRO 4" compression driver (ceramic magnet and Titanium diaphram)

  • Fane Colossus 15XS Prime 15" woofer (with shorting ring)

  • 4 x12" S&B Acoustic subwoofer (sealed)

​

All active on a modified Mini DSP 4x10HD as a preamp (sold)

​

  • Parasound T3 Tuner (modified and now sold)

  • I modified this Krell Showcase 7 amplifier which drove the speakers through 6 channels. (Sold)

  • Crown XLS10000 on the subwoofer (SOLD) 

  • Generic Ebay USB/SPDIF bridge

  • HP Pro Laptop AMD chipset.

​

January 2018 Acoustic Update

 

Now that I had 4 subs in the main system, the bass got a lot better and I didn't required much acoustic absorption.  Whilst removing the extra absorption left little to no detrimental effect on the main system.

​

After the main room change, I ended up having extra foam core acoustic panels left over, so I put them in the kitchen and it helped a lot in eliminating reverberation. Talk about a win-win situation from using only recycled materials. No cost and sound improvement.

​

See the main entrance on left. WAF anyone?

​

My second system never sounded as good as my main one but I still use it more for practical reasons. With the eighteen panels and two triangle corner traps, reverberation was more controlled and the system was more than satisfactory when I “pumped up the volume”.

Jan 2018 Partial Update

​

After I purchased two new Fane Colossus 15XS Primes for the main rig, to test the dual 15" bass bin concept, I went to find a replacement woofer for the kitchen.

 

I decided to not buy the 15XS as purchasing more Fanes quickly gets expensive. In any regard, the Fanes aren’t comfortable above 600hz, requiring a bit too much compensation.  I then went on the hunt for a 15" woofer than could play clean to 1khz, and was willing to sacrifice bottom end if need be.

​

After researching for a few days, I decided on the Precision Device PD154’s, which were similar to the Fane. The PD is UK made.

​

Compared to the Fane 15XS the PD154 revealed the following:

  • Had a slightly lighter cone

  • Played slightly higher but not as deep

  • Had a more powerful magnet (BL=29!!!)

  • Had less inductance.

  • Had less Xmax. Whilst maximum SPL was more limited, it still had plenty for my application, crossing at ~48hertz to four dedicated subwoofers.

  • both had big 4" voice coils which was a must for me.

  • It cost significantly less :)

 

​

Initial test revealed a similar frequency response, from 3” away, and slightly higher distortion for the PD154. (no shorting ring)

The burn-in was completed before posting measurements and subjective assessment.

March 2018 - A quick bass FR test

​

Unlike the main room, the kitchen system doesn’t have much acoustic treatment and the sub-woofer placement (4) isn’t optimal. The room is asymmetric with lots of reflection.

The MiniDSP 4x10HD work hard to correct all those flaw. A real-life situation here folks.

​

The measurements clearly revealed these limitations.

​

Yet… I managed a respectable 20-100 hertz at +-4.5db. (9db total deviation)

​

Distortion of 4 x 12" subwoofers reached 12.3% at 23 hertz. Not overly impressive, but still better than most people get in a non-dedicated and primary listening area.

​

The Spectogram clearly shows the lack of broadband bass frequency absorption in the room. I simply needed more panels.

​

bottom of page