The Borealis 300 preamplifier was created for a client who wanted a superior quality preamplifier and control centre with a phono stage. It is identical to our Borealis, except the gain stage uses the 300B tube for the extra warmth.

The 300B's filaments are powered with DC constant current and have a protection circuit built-in should one of the current stages fail.

A balanced gain stage design that has switch selectable gain tube choices for 6SL7 and 6SN7 to keep those tubes at their highest performance level, the preamp also features a regulated power supply, phase inversion select, balance, volume, balanced and two unbalanced inputs plus magnetic phono input. The outputs feature balanced and unbalanced with ground lift.

More pictures of this amplifier: Front and rear panel.

The cabinet was created by the client to match his system.

Want one of these? The pictured model with a 2 year limited warranty begin at $3,000. Minus the phono stage - $2,500.

Local clients or pickup only, we don't ship these.