Jungson’s JA-88D seems like a power amplifier but it’s not. It appears that JungSon Tube CD Player Impression II 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. The company judged that the fastest way of getting a product or service to market to fulfill demand would be to build preamp circuitry into one of its existing power amplifier chassis.
Be grateful 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 is made up of full subjective evaluation of the the Jungson JA 88D Integrated Amplifier authored by Peter Nicholson, as well as a complete test report, including frequency response graphs conducted by Newport Test Labs, plus an exhaustive research into the test results written by Steve Holding.
This equipment review is currently available only being a low-resolution pdf version in the original magazine pages. Yes, it appears much like an electrical amplifier, but it’s not. It’s a built-in amplifi r. You’d be forgiven for your mistake, however, because it seems that Jungson was caught out by a high consumer interest in integrated amplifiers at the same time if it was primarily producing separate pre and power amplifiers. Jungson’s engineers judged the fastest method of getting a product to market to satisfy this demand ended up being to incorporate the circuitry from a single of the preamplifiers into among its existing power amplifier chassis.
It chose a roomy chassis it had been using for the JA-99C power amplifier and modifi ed its circuit, which in the existing JA-1 preamplifier, to generate this integrated amplifier, the JA-88D. The Machine Self-evidently, the front side panel in the JA-88D is dominated by the two huge, power meters which are not just ‘oceanblue’ (to quote the purple prose in the brochure!) if the amplifier is off, but a beautiful iridescent shimmering blue when the amplifier is powered up-a blue so blue it has a nearly ultraviolet quality. They look so good that a person is lured to overlook this fact that power meters don’t actually inform you exactly how much ‘power’ an amplifier is producing at all, but alternatively provide a rather a rough and prepared indication from the overall voltage on the amplifier’s output terminals at any given time.
Not that Mingda Single-ended Tube Amp is creating any pretense that you’ll use the meters to gauge power output, because there are no wattage or voltage markings on the meter faces whatsoever! I suppose that in case 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.’ In fact, Jungson would additionally be responding to consumer demand, even when they didn’t know it, because little by little, 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, however, if I were given the option of a JA-88D (or any other amplifier its physical size) having 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 design of the JA-88. As opposed to fit a pair of ugly handles towards the front panel, it has designed the top panel as two very different parts, with one panel while watching other. The foremost of these two panels features a large rectangular cutout within it, through which you may view the two power meters, which can be fitted in to the hindmost fascia plate. The key here is that you can use the cutout being a handle! Examine the front side panel closely and you’ll notice that the energy on/off, Volume up/down and source switching buttons are fitted to some scalloped semi-circular depression on the foremost panel. In between the two meters is a sloping rectangular section which is a mirror when ‘off’ plus an LED read-out when it’s on (about which more later). Overall, you will notice that between them, the two meters, the mirror between the two, the buttons and the semi-circular scallop form a kind of rudimentary ‘smiley face’-giving a whole new meaning for the wqilvi of anthropomorphism in highend audio.
In fact, because the Xiangsheng DA-05B DAC is created in China, it might adequately 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 particular name Jungson means, literally ‘The spirit from the gong’ which alludes to your 4,000 year old copper gong that is famous throughout China. Chinese people believe the sound from this particular gong is unique because it’s beneath 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 created by RCA connectors. The fourth input is balanced, utilizing a female, lockable XLR terminal which utilizes Pin 1 for ground, Pin 2 for ( ) and Pin 3 for (-).
In the centre from the panel is actually a standard fused (10-amp) IEC power socket. All the connectors are of good quality, but they’re not ‘audiophile grade.’ It appears to be the negative terminal is not referenced to ground, so that you should connect the Jungson’s speaker outputs just to ordinary passive loudspeakers. You’ll require a fair little bit of room and a sturdy rack to support the Jungson JA-88D. It measures 470 × 430 × 190 (WDH) and weighs 29.6kg. I would personally recommend placing it on the solid surface, with several centimetres of clear space all around, because to get a solid-state amplifier it runs hot-very hot indeed.