Thiel Owners

Tom,

You cannot have enough power with the 7.2 which is my favorite Thiel speaker. 

Please keep us posted as to the amp upgrades. Sounds like a fun project. 

We have 5- 600 amp electric panels at the company so pleanty of power on tap. 

The plan is to run a 60 amp dedicated sub panel off the main. Between main and sub panel a 15KVA Topaz Isolation transformer will be installed 

Each line ran from sub panel to outlet will have its own isolation transformer. For amps I have matching 5KVA Topaz isolation transformers. For digital and pre amp cicuits their own isolation transformer. These will all be located at the sub panel so no noise or hum in the listening room. 

 2- 240v  20 amp circuits for amps. One for each mono block. 

Three additional 20 amp circuits will be ran for pre amp,  digital, and possible analog rig. 

Running 8awg copper wire to minimize voltage drop. 

I understand star quad twisted wire. How would I do this with large gauge wire in insulated jacket? 

The soundstage height and depth is back. Soundstage focus is better now. Did 2 things,

1. Level the speakers with spirit leveler

2. Treat the side first reflection with foam. (Tomthiel is right about the side walls)foam is 2 feet higher than the speaker height and place to behind the speakers.

I think all is also right on the amp being too low powered. I think when on some songs that are louder and more complex, I can hear some hardness in the vocals. And when there is too much bass on certain sounds, it seems to mess up the vocals a bit in terms of teh placement of the vocal in the sound stage.Or could it be other reasons the hardness in the sound?

What is a good amp that is more powerful and sounds similar to the schiit Aegirs?

Thanks 🙏

Max - what a fabulous setup!

The DR79s are only 100 watts (stereo) into 8 ohms. We are dedicating them to bridged mono operation. Their stock power is rated at 1100 watts into 2 ohms. Hotrod will increase output. I realize that more is better, but these amps are what I have and know, and Bill T. has encouraged this particular upgrade.

My thoughts on house wire include the effects of Electrical and EMF radiation/corruption on the transmission properties of the power cable. The loads are not steady-state due to less than perfect isolation of the audio devices. Power cable commonly comes in flat and round (with a twist) configurations. I recommend the round variety with hot leads opposite. (Not star quad, but field propagation is better than flat wire when loads fluctuate.) Also consider the radiation characteristics of the outlets themselves. All 'hospital' or 'laboratory' grade devices are not created equal.

Keep us posted as you build out this room.

Tom,

Like you more projects than humanly possible to tackle.

My thought and experience with the 7.2 it’s more about current than watts. In every scenario I had high current amps I preferred them over high wattage.

Your amps will have a firm grip on The 7.2. The bottom end with the right amp is infectious.

I’ve come up with a design for 7.2 bases that will not raise the height of the speaker but provide a sonic improvement from my experience. I’ll share it with you by sending you CAD/model files.

In listening room I am filling the wall the speaker are behind with lambs wool. I’ll tack a silk black backing over it. I’ll take cabinet grade baltic birch void free plywood and throw it on the router and cut an array of various sized holes and slots throughout the entire sheet. I’ll install and the look will be holes and slots recessed back and highlighted with the black silk material which will absorb the excess energy coming off that wall.

In the corners I will roll lambs wool in 12" diameter roll the length of floor-to ceiling height. I will frame it out and set wool in. I will cut the birch plywood the same as I did the other but these will be curved so it will look pie shaped. They will be built in bass traps.

Natural cedar T&G ceiling with some diffusers is the plan. Western cedar does an amazing job on its on of getting rid of slap echo.

I did a mock up of a very sophicated suspension rack based on a Indy Car front suspension system. The final material will be 25mm Panzerholz for the base.

I always aimed for the fences but some days the mind is willing but the body is weak.

duramax747

That is a seriously good wiring infrastructure.

I know that you endorse Pass Labs power amps.

What other gear will round out the Front End?

Happy Listening!