Thiel Owners

Hi y'all,

Been enjoying semi-regular lurking on these pages.

Maybe this is plain enough and not in the scope of the discussion about other creative ways one might get or get close to good SSx time alignments. I have a pair of 3.7s mated with a pair of SS1s positioned behind each a couple of feet. I use a Behringer DCX2496 (Ric Schultz modded) as a crossover controller (ahead of power amp and SS1s) plugging into the SS1s normal inputs.

I have chosen a second order filter slope at 80 Hz. Second order as a compromise between the Thiel loved first order and thinking to get the energy to fall off a little quicker to avoid much power going to the passive radiators—maybe muddying the possibly purer SS1 lows.

I looked at the (main speakers) delay that would be by calculations appropriate for a sum of the SS1 behind positions and the delay at Xf for the second order slope. I dialed in that number and tweaked it (only a small amount needed) until the SPL response at 80 was peaked indicating good time alignment there. (and of course set the relative levels by looking at plots of low frequency sweeps)

Seems like there may be a couple of nuances to this line of thinking that I’m neglecting to recall but w/o digging back into my couple years old notes, that is the essence...

I have been pleased with the results. Bass is well integrated sounding, particularly on transients and particularly when compared with either a DCX zero delay file or the fourth order behavior of the Thiel PX05s I started with.

Cheers, John

Silvanik 
I've been meaning to write and welcome 
a fellow McCormack amp owner and a passive pre-amp user .
You had me daydreaming about the DNA-2 , great specs ,
there was a Deluxe edition for sale on E-bay starting at $2,000 ,
buy then I saw the weight of the unit !
Ironically the Thiel thread was discussing the weight of equipment 
and the aging of the owners , daydream over .

I had just purchased a new phono pre-amp that has taken my system to a new height in listening pleasure .
( luckily because if I hadn't just spent $1,800 I might have still been daydreaming about the DNA-2 amp ) 
I went from an entry level SimAudio Moon 110LP s.s. with a regulated power supply ( big improvement over the stock wall wort ) to
and Tavish Design Asiago tube unit .
New height , width , depth , definition and BASS !
My 2.7s let me hear every improvement every detail with bass that
is so clear and low WOW , no tube roll off here or at the high end either . 

It took me over 2 years to make the decision on which one to move up to 
with  the Manley Chinook , the Decware ZP3 ,
also the Parasound JC jr  and the Sutherland Insight as the contenders .,
but the Tavish Designs with it's separate power supply and all tube MM amplification won out .

Are there any other McCormack amp Thiel speaker guys out there ?
Do any of you use a passive pre-amp ? 
I have seen many of the Thiel owners praise the power of tubes ,
do any of you have a tube phono pre-amp ?

Happy Listening All
Today is Classical Sunday 
Rob