Ikutaro Kakehashi the founder of Roland and instrumental in the design and implementation if MIDI has died.
To hear the Helix 1 and Helix 2 come to the April meetong of the Melbourne Audio Club. Mark Doehmann is expected to bring both turntables to the Willis room. Make a note- third Wednesday of every month
Ron Newbound and the DIY group of Melbourne Audio Club have been developing a new transmission line loudspeaker. As a group they came up with a design using tapered Sonotube pipes within the enclosure. Drivers and damping have been installed, crossover design and tweaking are planned for the next meeting. (On April 1st. Not an omen I hope).
If you would like more information come to the meeting Wednesday 15 and join the group. Also enjoy the demonstration of Hugh Dean’s AKSA amplifiers and Kef 105 reference loudspeakers brought by Ray of the Hi Fi Exchange.
8pm in the Willis Room, Nunawading Civic Centre. Third Wednesday of every month
A NIGHT WITH ASPEN AMPLIFIERS
The name Hugh Dean is synonymous with the Aspen amplifier range. His kit form amplifiers have won many hearts among audio enthusiasts who appreciate a very high standard of sound.The Maya 200 and the SAKSA 85 amplifiers are a culmination of over twenty years of innovative design, starting in 1974 with the Glass Harmony.
The Maya was conceived in 2015 when a topology breakthrough appeared, which Hugh will attest has brought huge improvements in speed, bandwidth and clarity. This 200W per channel amplifier comprises four discrete stages: Input stage including a feedback node, Voltage Amp stage, Driver stage, and the Output stage which uses a pair of very large 480 watt MOSFETS.
Hughs primary aim in his amplifier design is very low odd order harmonics. The MAYA avoids phase issues with extremely linear first and second stages. With very low THD, less than 0.025% into 200W and very low noise, the Aspen amplifiers have none of that solid state glare. The amplifiers can be bought as a DIY build from a pair of tested and assembled pcbs modules, starting at $930 plus GST for the SAKSA 85, and $2200 plus GST for the MAYA 200. Both units can now be purchased with purpose built full enclosures.
An OPPO 105 multi disc player will be playing the music, while a pair of classic KEF 105/3’s will entertain us with their sound. The 105/3 was the first Reference Series Loudspeaker from KEF to incorporate Uni-Q technology. This four way floor-standing speaker embodies several advanced and unconventional design features for its time. Its bass section drivers are mounted within the cabinet in a double coupled-cavity configuration. The combined output of the two woofers is radiated through a front mounted 6 inch diameter port. The D’Appolito array on the front panel is shared with a pair of midrange drivers and a KEF Uni-Q driver, with a concentric 6-1/2 inch cone and a 1 inch tweeter.
Midrange bloom, solid state glare, lifeless sound? None of that with Aspen Amplifiers.
Nick KarayanisProgram Co-ordinator.