QRD Quadratic Residue Diffuser Kits now in the Loudspeaker Kit store!

QRD Quadratic Residue Diffuser Kits now in the Loudspeaker Kit store!

These are for those serious about treatment and getting diffusion into your room.

These are 500 Hz diffusers effective up to around 3.5k. They are quite a bit deeper than typical commercial options, meaning they work down lower into the midrange.

When I assembled a dry run with this kit, I was very pleased to discover how easy it was. All the parts slot together nicely.

Find them here:
http://www.theloudspeakerkit.com/lsk-qrd-500-500-hz-quadratic-residue-diffuser-kit/

Melbourne Hifi Show 2013

At the recent Hifi show, LSK & Red Spade Audio shared a room with Weston Acoutics.  Earle Weston builds valve pre, integrated and power amps.

HE2 on the right is an efficient speaker designed with these kinds of amps in mind. On the left, you can see the first appearnce of F47. This is a time aligned floorstander designed by SGR Audio, soon to be available as a kit.  

This photo was taken at the closing of the show. The rest of the time there were too many people in the room to take photos, and I was occupied much of the time with questions and talking with our visitors. 

An existing stock M4 on the left next to a new revamped M6 with new OEM drivers and a new crossover.

The rack in our show system:

 M4 boxes on display along with a demonstration video playing:

A nice collection of valves:

Artisan:

 

Topaz monoblock:

Timber samples:

Cine series prototype (Cine 8.1):

LSK kits due for release at the hifi show

At the upcoming hifi show in Melbourne, we have some kits due for release.

Starting from the left ...

M4: an entry level mini monitor.

M5 and M6: value-oriented compact stand mounts.

These are revamped kits with new crossovers and upgraded drivers. 

F47: Our flagship two channel speaker featuring a passive 3 way design with a 4" midrange and 7" midwoofers. In this design we are using high end OEM drivers which we have found to be superior to even the best regarded drivers available to DIYers.

Cine 8.1: Despite being no larger than a mid-sized stand mount, Cine 8.1 hits hard. The secret lies in using pro drivers and optimising senstivity over extension. The driver has such a low moving mass, that we had to use a port just to get to 80 Hz! This means we can achieve 93 dB sensitivity in a compact speaker. A compression driver is loaded into an elliptical aluminium anodized horn, yielding very good dispersion control.

Cine 8.2: This takes it up a notch with 96 dB sensitivity and higher power handling. This speaker is all aobut how much kick we can squeeze into a speaker that is slim enough to find a place in a living room.

HE2: This is designed to be a good all-rounder. It's a passive two way 10" floorstander with a horn loaded compression driver. Bass extension in-room will vary typically from 30 - 50 Hz.

Cine 12: This is the ideal choice for a home theatre speaker in a dedicated room. Features an elliptical oblate spheroidal waveguide with a compression driver, paired with a 12" pro midwoofer. 97 dB sensitivity.

Find us in room 342 at the show.

Australian Audio & AV Show 2013

 

Australian Audio & AV Show 2013 details

InterContinental Melbourne The Rialto

Address

459 Collins St Melbourne 3000

Transport
Nearby Stations: Southern Cross

Telephone 03 8627 1400

Date 18-20 Oct

Open Fri 2-8pm Sat 10am-6pm Sun 10am-4pm

Have you booked your ticket yet? The Australian Audio & AV show this year is in Melbourne. I will be there representing LSK The Loudspeaker Kit and Red Spade Audio in a room also shared with Earle Weston of Weston Acoustics - visit us in room 342, which is located on the third level right at the end, opposite the elevators.

You can book tickets HERE
You can see a complete list of exhibitors HERE
For more information about the Australian Audio and AV Show, contact Chester Group.

Official website >

Isn't it about time Australia had a home theatre forum?

I think it's about time!

Of course, we've had StereoNET for almost a decade, but it's focus is primarily two channel.

Now finally we have a home theatre oriented forum - AV life. I think it will be a good thing for Australian audio enthusiasts.

Facebook page

Ring Radiator waveguide tower

Shown during testing on an elevated turntable. This is a rear ported design, in which I compare both a Scan Speak and Vifa ring radiator.

The problem with this combination is that these drivers don't want to hold hands. The waveguide is used to lower distortion of the ring radiator and match dispersion whilst also allowing a reasonably simple crossover. Used incorrectly, these drivers very easily sound bright.

Cinem8 - a custom active waveguide speaker

Cinem8 is a custom designed active speaker. It is designed as a compact horn speaker that carefully treads the line between large horn speakers and compact conventional designs. It features a compression driver for extreme output and 8" midwoofers which achieve enough extension even in a sealed box to mate with a subwoofer.