Manley Mahi monoblock amplifiers These cute little guys produce around 40 watts RMS in Ultra-Linear mode or around 20 watts in triode from a quartet of EL84 / 6BQ5 tubes driven by a 6414 dual triode driver and a 12AT7EH input dual triode. The EL84 has been one of Manley's very favourite... MSRP: Was: Now: $11,248.00 Add to Cart Compare