Hifi rush recensione12/14/2023 In conversions with Justin he expressed to me that he set out first not to make a new flagship monoblock amplifier, but instead to build a pair of amps for his personal use. And I don’t just mean minimal feedback SET amps. There are some surprising and deep secrets in these classic designs which, to my ears, very few if any modern designs can replicate. In enters ampsandsounds’ Justin Weber, whose gear I’ve long liked but recently come to appreciate more for being one of the only hi-fi manufacturers channeling those classic vintage sounds we seldom enjoy any more. A bias pot mod has become popular, followed by power supply modifications such as a choke, more capacitance and updated resistor boards. The Citation II doesn’t have an easy way to bias the tubes, and the 7581 tubes are becoming increasingly rare, meaning 6L6GC tubes often get substituted. Bass far exceeds what one might expect from the conservative 60W rating, and the amplifier has earned a deserved reputation as a bit of a vintage collectors item. While the imaging and soundstage are remarkably textured and organic, they are also exceptionally resolving, surprisingly linear and in some setups can even sound a bit dry and hyper-resolving. The input stage is a simplified version of the earlier Citation II, doing away with the complex phase splitter and multiple nested stages, but keeping the fairly high feedback, which helps the amp achieve that remarkable output bandwidth.įor anyone who has heard these amplifiers, they do not conform to typical expectations of 1960’s tube amplifiers. The input stage was, somewhat strangely, 12BY7 pentode input tubes-likely selected for their wide bandwidth-followed by triode 7581s, or more commonly these days, 6L6GC. This is a pretty astonishing number even by the standards of today’s solid state amplifiers. The original output transformers on the Citation II, built by Freed, are exceptional feats of engineering and boasted a bandwidth of 230 kHz full power. The little brother to the Citation II, which was released in 1959, the Citation V followed Harman Kardon designer Stewart Hegeman’s philosophy of massive bandwidth and linearity. If It seems like I’m giving away the punchline before I’ve told the story, it only gets better from here, because this is also a story about one of the most beloved hi-fi amps ever made-the Harman Kardon Citation V. The story of the Ampsandsound Zion Monos ( website) is the story of the best amplifiers I’ve ever had in my system.
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