Sydney Audio Club Meeting - April 2026
Sunday 12th April 2026: The April meeting will showcase Richter Audio.
The February meeting will also include a Tech Talk covering the design principles and how their goals were achieved.
The doors will be open from 12:30pm for members to meet and greet prior to the Tech Talk commencing from 1:00pm, with the regular music session to follow from around 2:15 to 5:00pm.
The February meeting will also include a Tech Talk covering the design principles and how their goals were achieved.
The doors will be open from 12:30pm for members to meet and greet prior to the Tech Talk commencing from 1:00pm, with the regular music session to follow from around 2:15 to 5:00pm.
Dear members and friends of Sydney Audio Club Inc.,
The next Sydney Audio Club meeting for 2026 will be on the 8th of February with a presentation of loudspeakers by another Australian company Lenehan Brothers from the Gold Coast.
There will be a TechTalk this month by Russell Lenehan covering the design principles and how their goals were achieved, starting at 1.00 pm.
TechTalk Details:
Design Goals: Flat frequency response in room - Smooth off axis response to provide large listening area and minimizing boundary reflection anomalies - Linear phase response - Phase and amplitude correct crossover integration - Minimal enclosure energy storage and self noise - Complete structural isolation between Speaker system and room - High power handling - Smooth impedance curve: Able to be driven by both Tube and Solid-state electronics.
Development: New material research for lower energy storage, higher rigidity and greater damping - Component and driver choice and development - 2 way floorstanding speaker
The doors will be open from around 12:30pm to meet and chat with members before the TechTalk. As our club is based on mutual respect, especially in these open presentations, let us remain respectful towards one another’s views and opinions.
There will be one short break after the TechTalk before the meeting starts around 2:15pm. There will be an afternoon tea break mid-afternoon before the meeting finishes at 5:00pm.
Guests are welcome – we are a very friendly club so you don’t need to know anyone to join us for an afternoon of fine music and sound. If you happen to be late just quietly slide into a seat and join the meeting. To our guests, we respect the music being played so we request that you refrain from talking while music is being presented. There will be plenty of time for friendly banter between tracks and during the breaks.
The next Sydney Audio Club meeting for 2026 will be on the 8th of February with a presentation of loudspeakers by another Australian company Lenehan Brothers from the Gold Coast.
There will be a TechTalk this month by Russell Lenehan covering the design principles and how their goals were achieved, starting at 1.00 pm.
TechTalk Details:
Design Goals: Flat frequency response in room - Smooth off axis response to provide large listening area and minimizing boundary reflection anomalies - Linear phase response - Phase and amplitude correct crossover integration - Minimal enclosure energy storage and self noise - Complete structural isolation between Speaker system and room - High power handling - Smooth impedance curve: Able to be driven by both Tube and Solid-state electronics.
Development: New material research for lower energy storage, higher rigidity and greater damping - Component and driver choice and development - 2 way floorstanding speaker
The doors will be open from around 12:30pm to meet and chat with members before the TechTalk. As our club is based on mutual respect, especially in these open presentations, let us remain respectful towards one another’s views and opinions.
There will be one short break after the TechTalk before the meeting starts around 2:15pm. There will be an afternoon tea break mid-afternoon before the meeting finishes at 5:00pm.
Guests are welcome – we are a very friendly club so you don’t need to know anyone to join us for an afternoon of fine music and sound. If you happen to be late just quietly slide into a seat and join the meeting. To our guests, we respect the music being played so we request that you refrain from talking while music is being presented. There will be plenty of time for friendly banter between tracks and during the breaks.
DETAILS OF THE SYSTEM:
Speakers: Lenehan Brothers System 1 speaker system.
Designed by Mike Lenehan, the System 1 is a stand mount 2 way dynamic speaker. The System 1 includes the dedicated tuned isolation stands, and are essential to maximise the performance of the speaker system in room. Solid wood cabinets, crafted from sustainable timbers are used exclusively. The cabinets are all new, featuring different and improved materials, refined construction methods that increase rigidity and further reduce energy storage and self noise.
- High Frequency driver : Morel Supreme 28mm chambered textile dome
- Mid-bass driver : Seas Excel 19 cm
- Frequency Response: 35 - 25Khz +/- 1.5db (in room)
- Sensitivity: 86.5dB @ 2.83V/m 1 meterImpedance: 8 ohms nominal 6 ohms minimum
- Recommended amplifier wattage: 20 - 700W
Crossover construction
Full hardwire hand build, all joints are high pressure low contact area cold weld sealed with Teflon wrap
Inductors Goertz Copper Foil Inductors 12 AWG
Capacitors Series Jantzen Alumin cap 100 volt . Parallel: Jantzen Cross CapPolypropylene film capsBypass : Cornell Dubilier
Cabinet dimensions (HxWxD) 420 x 215 x 400mm (16.5 x 8.4 x 15.7")
https://lenehanbrothers.com.au
Amplifier: Monarchy SM70 Pro monoblocks; Compact size; RCA and XLR inputs; stereo output is 25Wpc, but mono use more than triples the power output to 80W and adds the allure of fully balanced operation.
Streamer: Gustard R30 streamer/DAC/passive volume
Cables: Lenehan Audio Foilflex and WBC interconnects and speaker cables
https://foilflexcables.com/
Other equipment:
- PS Audio Dectet power block / filter
- Luna/ AGM power cables
- Lenehan Audio Toppers.
The source will be streamed via Tidal and Qobuz
The second half of the music session is designed to help you evaluate the system with music that you are familiar with. All members and guests are welcome to offer music to share with us all. For this meeting you may bring some music choices via streaming, or USB / CD playable on the club’s Reavon player.
All we ask is that the music and recordings be interesting. We'll ask you to tell us a little about the artist/recording before it is played. Tracks over 5 minutes will be faded out, to give everyone a fair go.
Whether you are a novice or a seasoned veteran, you will have the opportunity to listen, learn and share your experiences with others. Feel free to come and hear the capabilities of the system, or to just share the experience with like-minded music lovers in a friendly and relaxed atmosphere. Guests are welcome – we are a very friendly club so you don't need to know anyone to join us for an afternoon of fine music and sound.
Venue: Mathews Room, Epping Creative Centre, Dence Park
Address: 26 Stanley Road, Epping
When: Sunday 8th February 2026
Doors open from 12.30pm to meet and chat with members before the TechTalk at 1.00pm. The Music Presentation starts at around 2:15pm. Tea break is scheduled for mid-afternoon and the meeting finishes at 5pm.
NOTE: It is a requirement of entry that everyone sign-in to the visitors’ book upon arrival.
Hope to see you there on Sunday.
John McEvoy
Meeting Co-ordinator.
Speakers: Lenehan Brothers System 1 speaker system.
Designed by Mike Lenehan, the System 1 is a stand mount 2 way dynamic speaker. The System 1 includes the dedicated tuned isolation stands, and are essential to maximise the performance of the speaker system in room. Solid wood cabinets, crafted from sustainable timbers are used exclusively. The cabinets are all new, featuring different and improved materials, refined construction methods that increase rigidity and further reduce energy storage and self noise.
- High Frequency driver : Morel Supreme 28mm chambered textile dome
- Mid-bass driver : Seas Excel 19 cm
- Frequency Response: 35 - 25Khz +/- 1.5db (in room)
- Sensitivity: 86.5dB @ 2.83V/m 1 meterImpedance: 8 ohms nominal 6 ohms minimum
- Recommended amplifier wattage: 20 - 700W
Crossover construction
Full hardwire hand build, all joints are high pressure low contact area cold weld sealed with Teflon wrap
Inductors Goertz Copper Foil Inductors 12 AWG
Capacitors Series Jantzen Alumin cap 100 volt . Parallel: Jantzen Cross CapPolypropylene film capsBypass : Cornell Dubilier
Cabinet dimensions (HxWxD) 420 x 215 x 400mm (16.5 x 8.4 x 15.7")
https://lenehanbrothers.com.au
Amplifier: Monarchy SM70 Pro monoblocks; Compact size; RCA and XLR inputs; stereo output is 25Wpc, but mono use more than triples the power output to 80W and adds the allure of fully balanced operation.
Streamer: Gustard R30 streamer/DAC/passive volume
- Discrete R2R ladder architecture with NOS mode + 3 PCM filters (Linear Sharp, Minimum Slow, Super Slow)
- Built-in OCXO master clock and 10 MHz external clock input (50 Ω BNC)
- Network streaming via LAN (Roon Bridge, AirPlay, DLNA/UPnP, HQPlayer NAA)
- Dual I²S over HDMI inputs: one fixed Gustard pinout, one switchable (MODE1–4) for transport compatibility
- Seven digital inputs: USB, LAN, 2× I²S, Coaxial, AES/EBU, Optical
- Passive analog volume control or fixed-level output
- Large OLED display and IR remote
Cables: Lenehan Audio Foilflex and WBC interconnects and speaker cables
https://foilflexcables.com/
Other equipment:
- PS Audio Dectet power block / filter
- Luna/ AGM power cables
- Lenehan Audio Toppers.
The source will be streamed via Tidal and Qobuz
The second half of the music session is designed to help you evaluate the system with music that you are familiar with. All members and guests are welcome to offer music to share with us all. For this meeting you may bring some music choices via streaming, or USB / CD playable on the club’s Reavon player.
All we ask is that the music and recordings be interesting. We'll ask you to tell us a little about the artist/recording before it is played. Tracks over 5 minutes will be faded out, to give everyone a fair go.
Whether you are a novice or a seasoned veteran, you will have the opportunity to listen, learn and share your experiences with others. Feel free to come and hear the capabilities of the system, or to just share the experience with like-minded music lovers in a friendly and relaxed atmosphere. Guests are welcome – we are a very friendly club so you don't need to know anyone to join us for an afternoon of fine music and sound.
Venue: Mathews Room, Epping Creative Centre, Dence Park
Address: 26 Stanley Road, Epping
When: Sunday 8th February 2026
Doors open from 12.30pm to meet and chat with members before the TechTalk at 1.00pm. The Music Presentation starts at around 2:15pm. Tea break is scheduled for mid-afternoon and the meeting finishes at 5pm.
NOTE: It is a requirement of entry that everyone sign-in to the visitors’ book upon arrival.
Hope to see you there on Sunday.
John McEvoy
Meeting Co-ordinator.