schiit vidar in btl mode

Read through the FAQ's on the Vidar website.  Notice what they say about using a single amp into a 2 ohm speaker.  You can apply those same comments to a pair of bridged units, except now they apply to a 4 ohm speaker.

Tyrs are double the cost.

Yes! And its triple the amp compared to a Vidar. Example: 55 lbs. 12 lb choke. 160,000uf filter capacitance. 24 150W Toshiba output devices. 7 internal power supply rails, including HV boost rails that uses unique discrete CFP regulators. Sounds like overkill? It is. Tyr is our most insane amplifier ever, designed for driving difficult speakers without breaking a sweat.

Mike

@ditusa 

Tyrs are double the cost. 

@cakyol,

Buy a pair of Schiit TYR amps, and be done.

Mike

https://www.schiit.com/products/tyr

When manufacturers talk about 4 ohms and 8 ohms, they are talking about a nominal number. I think you can say that the amp is OK with driving a normal loudspeaker if rated at 8 ohms. However there might be exceptions. A bridged amp is not going to be as robust as an amp comfortable with 4 ohm or less loads. YMMV.