Next meeting of the Melbourne Audio Club

Wednesday 18 October

SYNERGY AUDIO presents SONUS FABER and McINTOSH

When it comes to luxury products, the Italians have a sense of style that is unmatched. When Sonus Faber introduces a new speaker range to the market, they are dripping with Italian styling and strikingly beautiful aesthetics that would appeal to the most discerning eyes.

The Homage Tradition line of speakers features a level of quality craftsmanship that is the hallmark of the brand. This month Synergy Audio presents the Serafino Tradition. This new generation of speaker is both technically advanced and strikingly beautiful.

The Serafino Tradition is a 3.5-way floorstander that houses Sonus Faber’s own 28mm silk dome tweeter featuring an “Arrow Point” phase plug. The tweeter shares an aluminium mounting plate with the 150mm midrange driver. The front baffle and aluminium plate are adorned in that distinctive leather finish. The low end is handled by the two 180mm bass drivers. Extruded aluminium fins run the length of the rear panel as part of an exoskeleton, integrating an effectively invisible “Aperiodic Reflex” system, engineered to provide the required bass extension.

Partnering the speakers will be a complete McIntosh system comprising of the MCT450 CD/SACD Transport and the MA8900 Integrated Amplifier. To get the most out of your CDs, the MCT450 combines an aluminium die cast tray with a twin laser pickup that assures an optimal disc reading at 2x read speed for better data recovery. Featuring 4 digital outputs, the unique DIN output connects to the MA8900 to deliver the purist possible sound. Wrapped in the timeless McIntosh aesthetics with blue Watt meters and black glass front panel, the MA8900 with the renowned McIntosh Autoformer, guarantees to deliver the full 200 Watts regardless if your speakers are 2, 4 or 8 Ohms.

Synergy Audio will also be demonstrating the new Mobile Fidelity Turntable with its matching cartridge, the Mo-Fi UltraDeck with the Ultra Tracker.

Once again we are in for a treat, both visually and sonically.

Nick Karayanis – Program Co-ordinator.

 

 

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Melbourne Audio Club Wed 20 September

The committee’s choice of music for the meeting was interesting and varied. A surprise was a veey live recording of Buddy Rich and Gene Krupa. Very live!

The equipment lineup was interesting, Ray’s selection of Marantz amp and Gale speakers was a good vintage sound. The second setup with Naim amplification and Vienna speakers was very warm and musical. It is great that members are so generous with their time and equipment. Thanks Ray and Nick.

THE NEW COMMITTEE PRESENTS
This month’s meeting will be more of a music presentation, and less to do with the equipment. The new committee will present to the club a selection of music from their favourite CD’s. It could be a track from one of their ‘desert island discs’ or a recent purchase. The program will cycle through the numerous tracks presented by each committee member.
To ensure that we get through as many different tracks as possible, I’ve requested that each track to be no more than 5 minutes long. This will get us through plenty of CD’s before the coffee break. While it’s good to have a music program for the night, a system to play all the music on would be appropriate.
Ray Go from the Hi Fi Exchange will be providing the equipment for the night. In fact we will have two systems to listen too. The first is a pair of refurbished Gale 401 speakers matched to a Marantz SM-11S1 power amp. Reviewed by Stereophile magazine back in May 2008, they commented “The Marantz’s clean, fast, revealing,surprisingly transparent, well-organised overall presentation took the most challenging recordings in its stride.”
The second system will have a large pair of floor standing speakers and a valve power amp. Ray is keeping the details of the gear a mystery up until the night of the meeting. I can tell you that both systems will have the same front end, an OPPO 95 as a transport and a LAMPIZATOR Dac will be taking care of the D to A conversion.
This would be a good opportunity for all members to discover some new music at this meeting. I’m sure the guys on the committee will do their best to present a thoroughly satisfying night of music.
Nick Karayanis – Program Co-ordinator.

Devialet, next MAC meeting will be real high end

DEVIALET
Expert Pro Integrated Amplifier
&
Phantom Gold Speaker

In 2009, a French manufacturer Devialet, set the audio world on its ear with the introduction of the D-Premier DAC-Integrated Amplifier. This unique component, housed in a slim shiny case the size of a laptop, featured a host of customizations that had never before been incorporated into an audio component.

A digital preamplifier section that could accept digital as well as line and phono-level analogue signals; a high-powered digital signal processor (DSP) that could perform real-time processing of the music signals for equalization and room correction; and an innovative amplifier topology Analogue Digital Hybrid (ADH), which set Devialet apart from other Hi-Fi manufacturers.

The current line up of amplifiers called Expert Pro, start off with their entry level model Expert 130 Pro which delivers 130Wpc into 6 ohms and goes up to their most powerful model, the Expert 1000 Pro. Leigh Fischer from INTERDYN will be demonstrating the many features of the Devialet amplifier with a pair of PMC fact.12 speakers. With new technology called Speaker Active Matching (SAM) the amplifiers output signal can be optimized for your particular speaker.

A testament to the pace of Devialets technical evolution is incorporated in the Phantom speaker. Their active loudspeaker backed with R&D and out-of-the-box thinking sets a path for the future. By design, the Phantom goes against and beyond the existing establishment. Egg like in shape and white only in colour, the technology contained within the Phantom speaker is very impressive.

The Gold Phantom will also be demonstrated at the club. Its novel combination of ‘Class A’ and ‘Class D’ amplification, 4500W at 108db, and their ‘Bass Implosion ‘technology measuring ruler flat from 20Hz, is the absolute demonstration of Devialets design and engineering.

Devialet has firmly cemented its name in the audiophile world. Their integrated amplifiers and Phantom speakers, play host to the most exciting and innovative technologies available in sound reproduction. The future in Hi-Fidelity has arrived.

Nick Karayanis – Program Co-ordinator.

8 PM Wedsnesday 16 August in the Willis Room, Nunawading Civic Centre

Reminder: subscriptions are  due, guests are still welcome.

VINTAGE AUDIO EXCHANGE

The key to Tannoy sound?

Tannioy key

Trichecking if it really is 1Kv

Tri and Wavac

Westminster clone

Westminster2

RCA 833, specs:

Values per 833 working class B as an R.F. amplifier with a maximum modulation factor of 1.0.
Va max, 3 kV
Ia max, 400 mA
Pin max, 450 W (This is the total input power to each 833 at maximum drive.)
Pa max, 300 W (This is the maximum anode dissipation and at this power level the anode reaches a temperature of about 800 °C, and glows red hot.)
Vg1 max, -70 V
Peak R.F. grid voltage, 90 V.
D.C. anode current, 150 mA
D.C. grid current, 2 mA
Driving power, 10 W appx.
Output power, 150 W appx.

rca833The king of SET amplifiers?

David, the importer of Shindo and other high end gear has been demonstrating a pair of Wavac HE833 monoblocs.  Each amplifier uses RCA 833 valves. Direct-coupled input featuring a WE437A input tube and the driver is a triode wired KT 88.

So how does a 150Watt Single ended triode amplifier sound? I only listened to the Wavacs through Tannoy Westminster clones, pre and phono stages also by Wavac. Big sound, effortless dynamics, natural voice and strings. Good and clean from the deepest bass all the way to the highest frequencies I could hear. Most of the music we played was familiar, Beethoven and Vivaldi all the way to female and male vocal. The Tannoys of course looked and sounded great, having ample Single Ended Watts really made them sing.

In the pictures  you can see the size and finish of the amps and the Tannoys. Also notice the Autographs made by Shindo.

Avantgarde at the Melbourne Audio Club Wednesday in the Wiliis room, Nunawading Civic Centre

MAXMEDIA Presents AVANTGARDE ACOUSTIC ZERO TA XD

This month we welcome to the club a local importer of High End audio equipment. Cameron Keating from Maxmedia will be presenting a selection of European Hi-Fi brands of which Avantgarde Acoustic from Germany, would be a very familiar name with horn speaker enthusiasts.
Cameron will be demonstrating the newest model in the Avantgarde range, the Zero TA XD. This entry-level speaker encompasses Avantgardes’ 25 years of know how in hybrid horn loudspeakers. Up until now, Avantgarde fans have had to choose between one of the company’s bigger, more expensive hybrid horns. Standing just over a meter tall, this new three way model is described as a semiactive horn system. The objective was to accomplish the clarity and power of its “bigger” brothers, in a significantly reduced enclosure.
Employing Avantgardes’ CDC technology, the midrange driver has no passive filter components in the signal path. This results in a sound characterized with an effortless clarity and explosive vitality. The 400 mm spherical midrange horn crosses over at 300hz to a DSP-controlled 10-band parametric subwoofer. This 12 inch long throw driver is powered by a 500Watt amplifier.
Partnering the speakers for the night, will be the LAB 12 Mighty Power Amplifier. This single ended class A valve amp, will be driving the mids and tweeters with only 10 Watts. Matched to its pre-amp, the LAB 12 TRUE is a Passive Attenuator / Input Selector. The LAB 12 DAC 1 will be taking care of the digital to analogue duties, with classic non oversampling (Phillips TDA 1543) and a tube based output stage. Not forgetting, a second DAC from iFi the Micro iDSD BL will be taking a turn. The font end source will be a music sever from INNUOS, the Zeneth Mk II.
With a system sensitivity of 104 dB, the ZERO TA is 32 times the dynamic range of a conventional 87 dB box speaker. I think we’re in for some fireworks for the night.
Nick Karayanis – Program Co-ordinator.

A transmission line speaker like no other!

Melbourne Audio Club’s “Audio Action” group have finalised the unique transmission line speaker they designed and produced. The meeting is next Wednesday 21 June, as well as the AGM the new speaker will have it’s first public outing.

The Camel Project
Once again the Annual General Meeting has come around for another year. It is always the intention to keep business dealings at the meeting to a minimum, with nominations for Committee positions and Music Convenors.
After the club business, we will be entertained for the night by the guys from the Audio Action group. No, this isn’t a cabaret act, but a group of MAC members who have been lead by Ron Newbond in developing a speaker project. Over the past twelve months, the group has been collaborating in designing and building a ‘Camel’, well that’s what Ron calls it. The ‘Camel’ in question is actually a three way Transmission Line speaker, but not in the usual tall rectangular box shape.Well what do you expect when you get a dozen MAC members together to design a speaker?
This unique looking speaker is based around a cylindrical enclosure that houses the transmission line, while the front baffle presents to the listener a ‘surfboard shape’ that seems to float off the floor. You could even say the selection of drivers is unconventional. The tweeter is an air motion transformer (AMT), while the mid and bass cones are made from aluminium.
Ron will start the presentation with a short explanation on some of the technical issues with building such a speaker. How some of the challenges were resolved as well as why the group chose to develop this type of speaker. Then each member from the group will get to play a piece of music to the club. Ron assures me that the group will have a good selection of music that will demonstrate the best performance out of the speakers.Sounds like we will have an interesting and enjoyable night. Not to be missed.
Nick Karayanis, Program Co-ordinator.

Joe Rasmussen

After last week’s demonstration I checked Joe’s website

Www.customanalogue.com. ( note the correct spelling of analogue).

Lots to read and in investigate. He showed the frequency response, phase angle and impedance curves of his Elsinore speaker design. Worth a look, and certainly worth hearing of you get the opportunity.

Pictures of Joe will appear soon!

Jo Rasmussen in Melbourne

Next Melbourne Audio Club meeting Wednesday 17th May, in the Willis room, Nunawading Civic Centre.

The meeting begins at 8pm with reports of home meetings, other business tonight will be a vote on a change to the constitution. The presentation by Custom Analogue Audio and Joe Rasmussen JLTi will be of great interest to all Oppo users.

This month the club is very privileged to have an audio enthusiast travel all the way from Sydney to present at the club. Joe Rasmussen is known among the DIY audio fraternity as the “Father of the Buffered Gainclone” His collaboration with the late Allen Wright, led him to develop several projects starting back in 1975 with a “hybrid tube amplifier” In 2001 their work saw them develop upgrade modules for the first generation Sony SACD players.
Joe will be presenting at the club his latest upgrade projects. The JLTi Oppo level 4.2+ACB, is a highly modified Oppo-105D fitted with no less than eight modules. Each having a specific task – Master Clock – DAC Clock – Terra Firma power supply – all designed and developed by Joe at Custom Analogue Audio.
“Ultimate Digital playback deserves Ultimate Stability! This is about the importance of clocking CD players and digital playback, a new standard of performance. How to make digital sound more like good vinyl”
His collection of equipment that will fill the room with sound, will include two amplifiers, a prototype “Beyond Triode” amplifier – A New Type of Tube Amplifier, and a DIY 40 Watt “Transconductance Amplifier” This solid state unit will be brought along for a bit of fun. Designed to output ‘current’ it will be demonstrated with his Elsinore Mk6 speakers. Compatible with this amplifier they can be driven from any source impedance and hence does not rely on the ‘damping factor’ of the amplifier. The “Beyond Triode” amplifier encompasses thirty years of experience and developments rolled into one design. The prototype unit a Yaqin MC-100B, has been upgraded to give a great boost in the ‘Permeability’ of the output transformers, which then translates into an extreme level of resolution.
To round off the equipment list for the night, two versions of the JLTi Phono Stage will be presented, a single box unit, and the new Deluxe Phono Stage. The Deluxe version is a two-box unit with a ‘beefed up’ design in the gain and buffer stages plus a massive separate power supply with extreme filtering that reduces power supply noise.
What Joe Rasmussen has achieved by taking a good quality product, amp or CD player, and lifting its performance to more than just one level, but several, makes music sound just lovely-Just Listen To it.
Nick Karayanis – Program Co-ordinator.