I have always been fascinated by the idea a a LDR preamp but never actually investigated it further. Maybe nows my chanceWe have partnered with the smart folks at hi-fi+ to bring you an exciting competition to win the excellent Single Shot Integrated Amplifier worth £9,290.
Jason Kennedy reviewed the Single Shot in hi-fi+ issue #223 where he wrote, “Both models of Java integrated amplifiers use GaN FETs (Gallium Nitride Field Effect Transistors) in Class D circuits, while the preamplifier sections use LDR or light-dependent resistors in a passive circuit…
Java founder Martin Bell explains: “It works by varying current to alter the intensity of an internal LED, which in turn varies resistance to adjust the volume level, creating the purest possible path for the delicate audio signal.”
He explained, “Class D GaN FET amplifiers are likewise high-efficiency designs which makes the Java Single Shot almost green by the standards of 200 Watt integrated designs, those heat sinks are not there for looks alone. However, they do get warm when the amp has been running for half an hour or so.
The Single Shot appellation indicates that this is the more affordable of Java’s integrated designs with single-ended connections and half the output power of the 400W Double Shot variant. The Single Shot is just over £9,000 while the Double Shot is nearly £2,000 more, so there is a worthwhile saving and the product looks the same albeit with only two RCA line inputs rather than four balanced ones.”