Kenwood DPX-990MD

FM多重内蔵デュアルサイズMD/CDレシーバー: Kenwood put the good converters in this one. The DSP section runs an Enhanced Dual Bit fourth order delta sigma arrangement, 20-bit at 64 times oversampling going in and 20-bit at 128 times oversampling coming out, which is the arrangement Kenwood reserved for the top of the range rather than the third order 18-bit parts further down. Feeding it is a nine band equaliser at 60, 120, 250, 500 Hz, 1, 2, 4, 8 and 16 kHz across plus or minus 9 dB. The rated power figure is worth a second look as well: 25W x 4, but measured across 30 Hz to 20 kHz at 1% distortion rather than the single 1 kHz tone at 10% distortion that everyone else quotes, which is a far harder test for a smaller number. MD runs ATRAC at 800 to 400 rpm for 90 dB signal to noise, CD manages 93 dB, and the tuner has FM text multiplex broadcasting built in, which is where the long name comes from. Add a Dolby licence, 1500 mV pre-outs and the fact that it weighs three kilograms, and you have a deck from the era when Kenwood was still building these like hi-fi separates. You can even add a remote to control it.