- Written by Brian Alvarez
- Published on 24 April 2012
Setup of the Tannoy Revolution DC6T Floor-standing Speaker
The DC6Ts have dual sets of binding posts mounted very low and horizontally. A nice touch helping for both a cleaner look and shortening the length of speaker cables. The posts are solid and well secured but seem best suited for banana plugs. Single wiring sounded good but I gained a bit more organization and dynamic zeal with biwiring. If possible I prefer using bare wire on both the amp end and speaker end. The terminals on the Tannoys are recessed making it difficult for me to thread the bare wire cleanly. I caved and used banana plugs. Spades also proved a bit tricky, the knurled ends of the posts making it difficult to tighten them. In my experience I've yet to hear a difference between a good spade and a good banana connector. The only audible difference I hear is in connector versus bare wire. I usually prefer bare wire, towards the end of my listening I took the time and put together the patience to thread the bare wire.
These are far from the most benign speakers to set up correctly. They take time, which will be well rewarded, unlike other speakers you will need to experiment and be patient. The crux I suspect is related to the incredible phase coherence of the Dual Concentric drivers. The Tannoys required perfect, not near perfect, but perfectly symmetrical distances from my seating distance. Accuracy had to be to an inch! Initially I was off by just 1" and while I enjoyed what I was hearing, the sound lacked a tight central image.
Using a Marantz AV7005 surround processor I played with distances on a per 1.2" distance basis until I discovered that the speakers were literally 1.2" in difference from each other. When this was compensated for with the delay built into my Marantz AV7005 imaging snapped into focus, ferociously. Upon discovering this I proceeded to share my thoughts with Tannoy and was also informed that Dual Concentric speakers respond well to more toe-in than usual. I normally fire speakers straight down as I don't have side walls close to the speakers. Angling in the DC6Ts by 10-15 degrees did indeed do wonders for maintaining a consistent sweet spot even far from the ideal center listening position. With the left speaker physically moved forward one inch until the Marantz delay was set equally the AV7005 was disconnected.
Bass tuning is very forgiving and flexible. The rear bass reflex port reacts very linear with distance to rear walls. Moving the speakers closer adds a good dose of warmth without too much overhang or bass delay. Conversely pulling them further away decreased bass depth without affecting midrange energy. It should be very easy to get the bass just right in most rooms.
After getting placement just right I evaluated the Tannoy DC6T speakers with my Audiolab 8200CDQ used as DAC and Pre-Amp. Fed by a Musical Fidelity V-Link hooked up via USB to an Intel MacMini. The USB Cable being a D+ Class A from NEO (a professional cable brand of Oyaide Japan) with a NEO AS-808 SPDIF Coax cable. Interconnects were self made DH Labs Silver Sonic Pro Studio cable with Furutech FP-126 RCA connectors or Oyaide PA-02 bulk cable with Neutrik XLR connectors. Speaker wiring was Furutech FS-301 in dual run biwire or Canare 4S8 internally bi-wired. Amplification was provided by a Myryad MI-120, Parasound A23 or Meridian G series amp.