Page 59 - Hi-Fi_News_-_December_2020 video
P. 59

LEFT: DCD-A110 [top]
                                                                                                 keeps its fascia simple,
                                                                                                 and not because it’s
                                                                                                 ‘just’ a disc player,
                                                                                                 albeit one built on
                                                                                                 grand scale. PMA-A110
                                                                                                 offers defeatable tone
                                                                                                 controls, and both the
                                                                                                 digital inputs and the
                                                                                                 small display can be
                                                                                                 switched off

                                                                                                 power amp sections,
                                                                                                 with two large
                                                                                                 capacitors mounted
                                                                                                 to the rear of the
                                                                                                 chassis and the
                                                                                                 power amp being
                                                                                                 of symmetrical dual
                                                                                                 mono construction.
                                                                                                 It follows Denon’s
                                                                                                 familiar Ultra-High
                                                                                                 Current design,
                                                                                                 using just a pair of
                                                                                                 push/pull devices

         quad-DAC configuration, though here it   socket. Tone/balance controls are also   in place of the multiple power transistors
         supports digital inputs running to three   provided, with a novel two-stage system to   more common in amps of this kind, and is
         optical and one coaxial, plus a galvanically-  deliver the shortest possible signal paths   derived from the SX-series amplifi ers.
         isolated USB-B port through which it can   and reduce interference. ‘Source Direct’   The power output here is quoted as
         handle data at up to 384kHz/32-bit PCM,   bypasses the tone and balance settings,   80W/8ohm, rising to 160W/4ohm, which
         or DSD256/11.2MHz. There’s a MM/MC   while ‘Analogue Mode’ allows the digital   may not seem massive in the great scheme
         phono input too plus three sets of line-ins,   section to be powered down, as well as the   of things, but it certainly proves more than
         and a direct connection to the power amp   small front-panel display if required.  adequate in use. Meanwhile the design
         for an external preamp or AV processor.                                avoids running audio signals through the
           Outputs run to just a single set of   DUAL MONO                      front panel control circuitboard. Rather,
         speaker sockets and a line output for –   The interior of the amplifier is dominated   the PMA-A110’s preamp section is located

         well, whatever ‘record out’ is for these   by two transformers [see pic, p61], also   down the righthand side of the chassis,
         days – plus a front-panel headphone   feeding separate PSUs for the preamp and   directly behind the input sockets on the
                                                                                rear panel, with control signals sent to it
           110 YEARS AND COUNTING                                               remotely from the fascia.
                                                                                  In common with other recent products
           Denon’s 110-year history began in 1910, when American entrepreneur Frederick   released by Sound United stable, the
           Whitney Horn, in association with Japanese partners, founded Nippon Denki   Denon PMA-A110 also uses a two-stage
           Onkyō Kabushikigaisha (the Japan Electric Sound Company) to make single-sided   preamp design, with the volume control
           discs and gramophones for voice recording. Disc recorders were the mainstay of  directionally governing the gain of the
           Denon, as the company became known in the 1930s, for several decades, and its   first stage instead of merely attenuating


           first professional recorder, the transportable twin-deck DR-148, was delivered to   the signal. The result is a huge reduction
           Japanese broadcaster NHK in 1939 in time for the ill-fated 1940 Tokyo Olympics.  in noise and a boost to the S/N ratio when

             But a Denon recorder made a very different kind of history when its DP-17K   the amplifier is compared to the company’s
           was used to capture Emperor Hirohito’s speech ending WWII. After two takes –   PMA-2500NE [see PM’s Lab Report, p63].
           the Emperor initially spoke too softly, to the consternation of NHK’s technicians
           – the discs were smuggled out of the Imperial Palace, in the face of army   PERFECT PAIR

           opposition. They were broadcast the next day, the first time the Japanese people   Completing the set-up is a system remote
           had heard the Emperor’s voice.                                       supplied with both units, giving one-
             By the late 1950s, as the tape and LP era dawned, Denon started making tape   handset operation of the two together.
           recorders, and in 1964 delivered its DL-103 cartridge to NHK. At that stage the   And they are clearly designed to be used

           focus was still on professional equipment, and the first Denon turntables – and   together, not least because the 110th
           later its inaugural CD player – were designed for studio use. Only in 1970 did   Anniversary finish is going to stick out in a

           Denon begin to make consumer products, and its first integrated amplifi er, the   rack of either black or silver components.

           PMA-500, arrived two years later. In the same era, it heralded the digital audio   Fortunately, the two components here
           age with the world’s first eight-track digital recorder. The size of several fi ling   are not just impressive in their own right,

           cabinets the machine was, of course, delivered to long-term client NHK.  but make a very convincing pairing. What
                                                                                they’re not is another ‘me too’ of the

                                                                                 DECEMBER 2020 | www.hifi news.co.uk | 59
   54   55   56   57   58   59   60   61   62   63   64