Pairing up an RC-06 pre amplifier and an RB-06 power amplfiier is the smart way to enjoy purist performance from your audio system. Neither component costs more than a Rotel integrated amplifier, yet the sound of the two in harness is jaw-droppingly good. The RC-06 is a minimalist design engineered to preserve all of your music’s most fragile nuances and be partnered with twin RB-06 power amplifiers for very heavy-duty bi-amp operation. A purist pre amplifier. Also includes: Symmetrical circuit board layout, Short signal path routing, UK designed metal film resistors, US made super low-noise resistors, Rotel toroidal transformer and power supply, 12v trigger power control.