Same Brown Note Transformer Set custom wound by Heyboer for bigger, tighter lows and smoother highs, but with singe 290v secondary and 120V/240V primary taps. Power Transformers Specs: 120v Primary 290V & 125V secondary taps @125 mA, center tapped (290v-0-290v) 6.3V CT @ 3A (3.15v-0-3.15v) 5V & 6.3V @ 2 A (5v-6.3v-0) Output Transformers Specs: 8K Primary with 4-8-16 Ohm secondary taps. BN-18W-SD$160.00 2003-2010, Brown Note™