Victor PC-DX95 (1990)

 

Introduced in 1990, the PC-DX95 from Victor (JVC) was part of the so called CDioss Compo System Series. With the capabilities of two CD players, this is a true musical fortress: the Dual Pickup CD player. It offers the enjoyment of two CD players in one. Featuring independent CD-1 and CD-2 players, playing and editing music has become even more enjoyable. Experience a new kind of music with the Dual Pickup CD. Incredibly, each of the two CDs is equipped... Discover More

Technics EXE V10X (1985)

This is a high-quality component system featuring 150W + 150W output and a new Class A amplifier with a distortion rate of 0.002%. The amplifier is a high-output 150W + 150W computer-driven new Class A. It employs a newly developed constant-gain pre-driver to achieve a low distortion rate of 0.002%. It also features a multi-input design with 8 audio inputs and 4 video inputs. Various AV & CD-era components such as Hi-Fi video players, VHD players, and CD players can be connected simultaneously. The turntable: In addition to its unique integrated D.D. system, the player incorporates quartz technology for superior rotational stability, achieving near-ultimate rotational precision. Furthermore, it features a large, heavy-duty turntable for even more stable rotational performance. (Cartridge is pre-installed.) The tuner comes standard with a programable timer.

List of components - EXE V10X

Quartz D.D. Player SL-M2 - Price: ¥74,800

MM Stereo Cartridge EPC-P215CM - Price: ¥32,000

Quartz Synthesizer FM/AM Tuner ST-G6T - Price: ¥49,800

Integrated Amplifier SU-V10X - Price: ¥128,000

Stereo cassette deck RS-B85 - Price: ¥89,800

Honeycomb disc speaker system SB-M3 - Price ¥108,000 x 2

Compact Disc Player SL-P3 - Price ¥129,800

Total price including compact disc player - ¥720,200

The deck features a new phase correction circuit and linear feedback circuit, prioritizing sound quality. Furthermore, it is equipped with dbx NR and Dolby B-C NR for Hi-Fi recording and playback, making it compatible with a wide range of sources. The speaker features a large-diameter 33cm honeycomb planar 3-way design that delivers powerful bass and a wide dynamic range. It boasts a high power handling capacity of 200W and a sound pressure level of 90dB/W, resulting in a highly efficient design. The CD player comes standard with a remote control with a 10-key keypad. It also features an auto-cue function for instant track selection and a 15-track random program selection.

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YAMAHA M-80 (1984) | AUTO CLASS A

The M-80 power amplifier was designed by Yamaha as a flagship high-end amplifier for listeners demanding both purity and serious power. With 250 watts per channel and technologies such as Auto Class A and Zero Distortion Rule (ZDR), the M-80 combines refined amplification with enormous dynamic reserves.

M-80 Main Specifications

Continuous sine-wave power, per channel:

250 W at 8 ohms, 20–20,000 Hz, 0.003% THD

290 W at 6 ohms, 20–20,000 Hz, 0.007% THD

340 W at 4 ohms, 20–20,000 Hz, 0.02% THD

Peak power: 380 / 480 / 640 / 850 W per channel at 8 / 6 / 4 / 2 ohms

Power bandwidth: 10–100,000 Hz at half rated power, 8 ohms

Frequency response: 20–20,000 Hz, +0 / −0.1 dB

Signal-to-noise ratio: 127 dB / 119 dB, IHF A

Total harmonic distortion: 0.002% at half rated power, 8 ohms

Dimensions: 435 × 165 × 425 mm

Weight: 23 kg

The technology: Auto Class A and ZDR Technology. Auto Class A circuitry is at the heart of the M-80's approach to amplification. At normal music levels, the amplifier operates in Class A, where low-level signals benefit from exceptionally low distortion and clean amplification. The design is based on the observation that around 95% of typical music power requirements fall within this operating range. When a musical peak suddenly demands substantially more power, the M-80 automatically switches to Class AB operation. This provides the additional output capability needed for demanding passages without requiring the amplifier to remain in high-power Class AB operation continuously. Zero Distortion Rule. The ZDR circuit addresses one of the traditional weaknesses associated with Class AB amplification: switching and crossover distortion. Integrated into the M-80's power-amplifier circuitry, ZDR is designed to suppress distortion introduced during the transition between output devices. It also counteracts distortion associated with the non-linear operation of the power transistors. The result is an amplification system intended to preserve the original music signal with the purity associated with Class A operation, while retaining the high-power capability of Class AB amplification. Massive Power Reserves for Difficult Loads. High-capacity capacitors and high-performance circuitry give the M-80 substantial reserves for sudden musical peaks. The amplifier is designed to remain reliable even when driving low-impedance loudspeakers. The specified peak output reaches an impressive 850 watts per channel into 2 ohms. For demanding speaker systems, that reserve can be particularly important when music contains rapid and substantial changes in level. 20-LED Peak Power Display. Twenty precision LEDs provide a visual indication of speaker load and amplifier output activity. An impedance control allows the display to be adjusted for 2-, 4-, and 8-ohm speakers. Peak memory is also provided, while the display sensitivity can be switched to a 10× range. Beyond its practical function, the large LED display gives the M-80 the unmistakable visual character expected from a serious vintage power amplifier. Three Speaker Pairs and Flexible Switching. Three speaker groups—A, B and C—can be selected using the amplifier's connection and switching system. The speakers can be operated independently, simultaneously, or in combined configurations. This gives the M-80 considerable flexibility for systems using multiple pairs of loudspeakers. The amplifier is also designed to handle low-impedance loads without distortion or unnecessarily triggering its protection circuitry. The specification for operation down to 2 ohms underlines just how seriously the M-80 was engineered for demanding loads. Heavy-Duty Speaker Connections. The speaker terminals accommodate different cable diameters, allowing both large-gauge speaker cables and conventional cables to be connected without soldering, crimping, or other special preparation. It is a small but significant detail that reflects the M-80's practical, high-power design philosophy. Protection and Additional Circuitry. An overload protection circuit monitors potentially dangerous operating conditions. If excessive power levels or a short circuit occurs, the protection system automatically shuts down the amplifier to help prevent damage to the M-80 and connected loudspeakers. Additional circuitry includes: DC gain configuration, DC protection circuit, Independent left/right level controls, A/B/C speaker-group selector. Original sale price in Germany: 2300 DM.

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