Jungson’s JA-88D appears like a power amplifier but it’s not. It seems that JungSon Tube CD Player Impression II was caught out by a high consumer interest in integrated amplifiers at a time in the event it was primarily producing separate pre and power amplifiers. The company judged the fastest way of getting an item to advertise in order to satisfy demand would be to build preamp circuitry into among its existing power amplifier chassis.
Thanks for searching out Australian HI-FI Magazine’s equipment review and laboratory test in the Jungson JA88D Integrated Amplifier originally published in Australian Hi-Fi Magazine, September/October 2006 (Volume 37 Number 5). This equipment review consists of a full subjective evaluation of the the Jungson JA 88D Integrated Amplifier written by Peter Nicholson, plus a complete test report, including frequency response graphs conducted by Newport Test Labs, along with an exhaustive research into the test results written by Steve Holding.
This equipment review happens to be available only being a low-resolution pdf version from the original magazine pages. Yes, it appears much like an electrical amplifier, but it’s not. It’s an incorporated amplifi r. You’d be forgiven for that mistake, however, because it seems that Jungson was caught out by way of a high consumer interest in integrated amplifiers at any given time if it was primarily producing separate pre and power amplifiers. Jungson’s engineers judged that this fastest way to get a product to promote to fulfill this demand was to incorporate the circuitry in one of their preamplifiers into among its existing power amplifier chassis.
It chose a roomy chassis it was using for the JA-99C power amplifier and modifi ed its circuit, and that from the existing JA-1 preamplifier, to generate this integrated amplifier, the JA-88D. The Machine Self-evidently, the top panel of the JA-88D is covered with those two huge, power meters which are not just ‘oceanblue’ (to quote the purple prose of the brochure!) once the amplifier is off, but a beautiful iridescent shimmering blue if the amplifier is powered up-a blue so blue it has a nearly ultraviolet quality. They search so excellent that certain is inclined to overlook this fact that power meters don’t actually tell you exactly how much ‘power’ an amplifier is producing whatsoever, but alternatively offer a rather a rough and prepared indication of the overall voltage in the amplifier’s output terminals at any moment.
Not too Mingda Tube Amplifier is making any pretense that you’ll try to use the meters to gauge power output, as there are no wattage or voltage markings on the meter faces whatsoever! I guess that in case I were a designer at Jungson, I’d look east throughout the wide blue ocean towards the large power amplifiers made in the US, and say something like ‘if American companies including McIntosh still include power output meters, so should we.’ Actually, Jungson would also be answering consumer demand, even when they didn’t realize it, because slowly and gradually, businesses that previously eliminated power meters using their front panels are slowly reincorporating them into their designs, driven only by requests from their dealer networks and customers. I can’t say I’d blame them.
I don’t find meters useful or practical, but when I received the option of a JA-88D (or some other amplifier its physical size) using a plain metal front panel or with a pair of great-looking meters, I’d opt for the version with the meters every time. Jungson has been very clever with the style of the JA-88. Instead of fit a pair of ugly handles for the front panel, it offers designed the top panel as two totally different parts, with one panel in front of the other. The foremost of these two panels has a large rectangular cutout within it, through that you can view the two power meters, that are fitted to the hindmost fascia plate. The key here is that you can use the cutout being a handle! Examine the front panel closely and you’ll notice that the ability on/off, Volume up/down and source switching buttons are fitted to a scalloped semi-circular depression on the foremost panel. In between the two meters is a sloping rectangular section which is a mirror when ‘off’ and an LED read-out when it’s on (about which more later). Overall, you will notice that between them, the 2 meters, the mirror between them, the buttons and also the semi-circular scallop form a sort of rudimentary ‘smiley face’-giving a whole new meaning towards the wqilvi of anthropomorphism in highend audio.
Actually, because the Xiangsheng DA-05B DAC is produced in China, it could very well be deliberate, since anthropomorphism (the act of attributing human forms or qualities to things which are not human) holds much significance in Chinese culture. The name Jungson means, literally ‘The spirit from the gong’ which alludes to some 4,000 year-old copper gong which is famous throughout China. Chinese people believe the sound out of this particular gong is different because it’s under the control over a musical god. On the rear panel the two main pairs of gold-plated speaker terminals per channel and four line level inputs. Three from the inputs are unbalanced, connection being produced by RCA connectors. Your fourth input is balanced, utilizing a female, lockable XLR terminal which uses Pin 1 for ground, Pin 2 for ( ) and Pin 3 for (-).
Inside the centre from the panel is really a standard fused (10-amp) IEC power socket. All the connectors are of great quality, but they’re not ‘audiophile grade.’ It appears the negative terminal is not referenced to ground, which means you should connect the Jungson’s speaker outputs just to ordinary passive loudspeakers. You’ll require a fair bit of room as well as a sturdy rack to accommodate the Jungson JA-88D. It measures 470 × 430 × 190 (WDH) and weighs 29.6kg. I would recommend placing it over a solid surface, with several centimetres of clear space all-around, because to get a solid-state amplifier it runs hot-very hot indeed.