Jungson’s JA-88D appears like a power amplifier but it’s not. It appears that Jungson Audio was caught out by way of a high consumer demand for integrated amplifiers at a time in the event it was primarily producing separate pre and power amplifiers. The company judged the fastest way to get a product or service to promote in order to satisfy demand would be to build preamp circuitry into certainly one of its existing power amplifier chassis.
Thank you for searching out Australian HI-FI Magazine’s equipment review and laboratory test of the Jungson JA88D Integrated Amplifier originally published in Australian Hi-Fi Magazine, September/October 2006 (Volume 37 Number 5). This equipment review is made up of full subjective evaluation in the the Jungson JA 88D Integrated Amplifier written by Peter Nicholson, as well as a complete test report, including frequency response graphs conducted by Newport Test Labs, plus an exhaustive analysis of the test results published by Steve Holding.
This equipment review happens to be available only as a low-resolution pdf version in the original magazine pages. Yes, it looks much like a power amplifier, but it’s not. It’s an incorporated amplifi r. You’d be forgiven for your mistake, however, because it would appear that Jungson was caught out by way of a high consumer interest in integrated amplifiers at a time in the event it was primarily producing separate pre and power amplifiers. Jungson’s engineers judged that the fastest way to get an item to market in order to satisfy this demand would be to incorporate the circuitry from a single of their preamplifiers into among its existing power amplifier chassis.
It chose a roomy chassis it absolutely was using for its JA-99C power amplifier and modifi ed its circuit, and this in the existing JA-1 preamplifier, to generate this integrated amplifier, the JA-88D. The Machine Self-evidently, the front panel from the JA-88D is dominated by those two huge, power meters which are not just ‘oceanblue’ (to quote the purple prose from the brochure!) if the amplifier is off, but a lovely iridescent shimmering blue once the amplifier is powered up-a blue so blue it offers a virtually ultraviolet quality. They look so great that certain is inclined to overlook this that power meters don’t actually inform 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 time.
Not that Meixing MingDa Valve Amplifier is creating any pretense that you’ll try to use the meters to gauge power output, because there are no wattage or voltage markings on the meter faces whatsoever! I guess that if I were a designer at Jungson, I’d look east across the wide blue ocean towards the large power amplifiers made in the united states, and say something like ‘if American companies such as McIntosh still include power output meters, so should we.’ Actually, Jungson would even be addressing consumer demand, even though they didn’t know it, because slowly and gradually, businesses that previously eliminated power meters from their front panels are slowly reincorporating them into their designs, driven only by requests off their dealer networks and customers. I can’t say I’d blame them.
I don’t find meters useful or practical, but if I were given the option of a JA-88D (or other amplifier its physical size) using a plain metal front panel or with a couple of great-looking meters, I’d go for the version with the meters each time. Jungson continues to be very clever with the appearance of the JA-88. Rather than fit a set of ugly handles to the front panel, it offers designed the top panel as two completely different parts, with one panel while watching other. The foremost of the two panels includes a large rectangular cutout within it, through which you may view the two power meters, which are fitted to the hindmost fascia plate. The key here is that you could use the cutout as being a handle! Examine the top panel closely and you’ll observe that the Power on/off, Volume up/down and source switching buttons are fitted to your scalloped semi-circular depression on the foremost panel. 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 can see that between the two, both meters, the mirror between the two, the buttons and also the semi-circular scallop form a sort of rudimentary ‘smiley face’-giving a whole new meaning to the wqilvi of anthropomorphism in highend audio.
In fact, because the Xiangsheng DA-05B DAC is made in China, it might perfectly 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 very name Jungson means, literally ‘The spirit in the gong’ which alludes to a 4,000 years old copper gong which is famous throughout China. Chinese people believe the sound using this particular gong is exclusive because it’s underneath the control over a musical god. On the rear panel there are 2 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, employing a female, lockable XLR terminal which uses Pin 1 for ground, Pin 2 for ( ) and Pin 3 for (-).
Inside the centre in the panel is a standard fused (10-amp) IEC power socket. Each of the connectors are of excellent quality, but they’re not ‘audiophile grade.’ It appears to be the negative terminal will not be referenced to ground, which means you should connect the Jungson’s speaker outputs just to ordinary passive loudspeakers. You’ll need to have a fair little room and a sturdy rack to allow for the Jungson JA-88D. It measures 470 × 430 × 190 (WDH) and weighs 29.6kg. I would personally recommend placing it over a solid surface, with several centimetres of clear space all-around, because for a solid-state amplifier it runs hot-hot indeed.