The Parasound HALO JC1 Mono Block Reference Power Amplifier by John Curl is truly one of the very best power amplifiers you can obtain on the market with all the best quality parts. The Parasound HALO Reference JC1 Mono Block is designed by John Curl, the person who designed the first High-End Mark Levinson JC preamps which Pat sold in 1974.
Oct 13, 2018 · The stereo amp becomes a mono block with much more power (P) due to the doubling of voltage. In fact from P = V 2/R (voltage squared divided by resistance), the doubled voltage results in a power increase by a factor of 4. Van Alstine had to modify some other internal things such as using a higher current transformer.