I have always been a fond admirer of the John Dunlavy speaker design and philosophies. Having moved from owning the old Duntech Marquis to a new pair of Duntech Senators. The individual custom attention to detail and not just conveyor belt manufacture of speakers by assemble line workers (of comparable priced European speakers) makes a huge difference to the end result. I have visited the Duntech Sydney factory and saw Kiat the company's CEO- by hand construct from scratch a Senator's Crossovers point-to-point copper rails and hand wind the inductor coil !
During my years working at Dunlavy Audio Labs as a Technician / Engineer in Colorado Springs, I actually had the opportunity to do extensive research and development on various high order true minimum phase crossovers. Since I was the technician calibrating every loudspeaker system to +/- 1dB. I actually came up with a crossover design that slopes 24 dB per octave, and does not store anymore energy than a 1st order crossover. My loudspeakers that I design while I was with Dunlavy, has a flat amplitude frequency and phase response, reproduces squarewaves, and has an aggressive slope of 24 dB per octave. High Order True Minimum Phase accurate reproducers optimizing the acoustic output power.
I'm the owner of three pairs of Dunlavy speakers: SC-III, SC-IV and SC-V. I bought the SC-IIIs in fall 2019, followed a month later with the SC-IVs. Just this past week (Oct 27, 2020) I took delivery of a pair of the massive SC-Vs. I've never heard any of the Duntech speakers, but I'm betting they sound very similar since DAL came after John left Duntech.
@@ColocasiaCorm IV's are awesome speakers, Vs are spectacular. I would haven been completely happy to stick with the IVs for many years to come, but these Vs were such a good price that I couldn't pass them up. They're even better than I thought they'd be. Mine are early version Vs with the dome upper-mids. JD later switched to cone upper-mids somewhere around serial # 150. I started with IIIs and liked them so much better than the B&W 802 S3s I'd owned for 20 years that I knew I wanted a pair of IVs someday. My chance came only 2 months later. I bought my Vs a little over a year after I bought my IVs; so 3 pairs of speakers in less than 17 months. I still have all 3 pairs of Dunlavy's and also bought a matching SC-II CC center channel in case I ever want to do surround.
Cannot wait to have some of the best speakers in the world home grown again. I’m going out to buy a lottery ticket as I would love some new Duntech Sovereign’s in my lounge room please.
@@genkifd I looked at the side profile pics, I still don't see it. I have three pairs of Dunlavy speakers: SC-III, IV and V. I think I know what to look for by now when it comes to stepped baffles.
Edgar I am perplexed why Kiat keeps banging on about superiority of “first order crossovers” when he clearly knows that Duntech do not use them ? Looks like the mere claims of “first order x/o “ carry the same legendary merit as the use of “egg crates” by NumbNutt acoustics - I would argue that it’s this sort of addition of unsubstantiated or easily debunked mythological claims that have damaged the industry world wide - I am happy to offer a free debunking service so that your reputation as a reviewer is not damaged......
I have always been a fond admirer of the John Dunlavy speaker design and philosophies. Having moved from owning the old Duntech Marquis to a new pair of Duntech Senators. The individual custom attention to detail and not just conveyor belt manufacture of speakers by assemble line workers (of comparable priced European speakers) makes a huge difference to the end result. I have visited the Duntech Sydney factory and saw Kiat the company's CEO- by hand construct from scratch a Senator's Crossovers point-to-point copper rails and hand wind the inductor coil !
During my years working at Dunlavy Audio Labs as a Technician / Engineer in Colorado Springs, I actually had the opportunity to do extensive research and development on various high order true minimum phase crossovers. Since I was the technician calibrating every loudspeaker system to +/- 1dB. I actually came up with a crossover design that slopes 24 dB per octave, and does not store anymore energy than a 1st order crossover. My loudspeakers that I design while I was with Dunlavy, has a flat amplitude frequency and phase response, reproduces squarewaves, and has an aggressive slope of 24 dB per octave. High Order True Minimum Phase accurate reproducers optimizing the acoustic output power.
Tell us more - were they ever commercial products?
It's great to see that Duntech continues and still adheres to John's exacting engineering ideals.
Owned the original Duntech Crown Prince(PCL1000) for 20 years.
Would love to have the new Princess.
I'm the owner of three pairs of Dunlavy speakers: SC-III, SC-IV and SC-V. I bought the SC-IIIs in fall 2019, followed a month later with the SC-IVs. Just this past week (Oct 27, 2020) I took delivery of a pair of the massive SC-Vs. I've never heard any of the Duntech speakers, but I'm betting they sound very similar since DAL came after John left Duntech.
4 vs 5? Thoughts?
@@ColocasiaCorm IV's are awesome speakers, Vs are spectacular. I would haven been completely happy to stick with the IVs for many years to come, but these Vs were such a good price that I couldn't pass them up. They're even better than I thought they'd be. Mine are early version Vs with the dome upper-mids. JD later switched to cone upper-mids somewhere around serial # 150.
I started with IIIs and liked them so much better than the B&W 802 S3s I'd owned for 20 years that I knew I wanted a pair of IVs someday. My chance came only 2 months later. I bought my Vs a little over a year after I bought my IVs; so 3 pairs of speakers in less than 17 months. I still have all 3 pairs of Dunlavy's and also bought a matching SC-II CC center channel in case I ever want to do surround.
@@BB.......... I want to collect Dunlavy too
Cannot wait to have some of the best speakers in the world home grown again. I’m going out to buy a lottery ticket as I would love some new Duntech Sovereign’s in my lounge room please.
My girlfriends dad has a pair of dunlavys. They are massive.
Good choice of girlfriend.
Duntech is insanely great products, I got one old pair myself (PCL-15)
Any thoughts on a Marquis replacement guys?
Why Dunlavy was not aware that bass cabinet should never be rectangular but elliptic or at least pyramid shaped? due to standing waves?
Time Alignment is also done by Hulgich Audio speakers
How? The baffles aren't stepped, they use ports, and I'm betting they use high-order crossovers, everything John D. was against.
@@BB.......... if you take a side profile of the speaker you will know how. the rest you will need to send an email directly to Nick Hulgich
@@genkifd I looked at the side profile pics, I still don't see it. I have three pairs of Dunlavy speakers: SC-III, IV and V. I think I know what to look for by now when it comes to stepped baffles.
@@BB.......... why do you need to step the front baffle? many speakers are not stepped and they are time aligned.
@@genkifd Why, because physics says so. They're not time-aligned if they don't have stepped baffles!
Edgar....."I can see my reflection in the speakers!"
Edgar I am perplexed why Kiat keeps banging on about superiority of “first order crossovers” when he clearly knows that Duntech do not use them ? Looks like the mere claims of “first order x/o “ carry the same legendary merit as the use of “egg crates” by NumbNutt acoustics - I would argue that it’s this sort of addition of unsubstantiated or easily debunked mythological claims that have damaged the industry world wide - I am happy to offer a free debunking service so that your reputation as a reviewer is not damaged......