Tube Integrated Amplifiers by Linear Tube Audio,Assembled SK18752 Mono Power Amplifier Board 135W Parallel High Power 135W 4-8Ω,Single-Ended Amplifier Power Transformer 300B/EL34/KT88, 400W, Copper Resistance 5Ω 400mA, X114-44,X Series. Flagship, Audiophile Grade. | Amplifiers and Speakers | Car Electronics | KENWOOD New Zealand,Assembled SK18752 Mono Power Amplifier Board 135W Parallel High Power 135W 4-8Ω