AIWA CDS-999 (1987) | Prior 999

 

The Prior CDS-999 was a flagship Japanese midi hi-fi component system developed for the emerging DAT (Digital Audio Tape) era, combining advanced digital technology with true audiophile performance. Rather than simply adding DAT compatibility to a conventional stereo, the CDS-999 was engineered as a complete digital audio system featuring a powerful 150W + 150W amplifier, a signal-to-noise ratio exceeding 100 dB, a large toroidal power transformer and a dedicated CD/DAT Direct circuit for the cleanest possible signal path. Remote-controlled motorized volume, surround processing and dual recording outputs further emphasize its premium, high-end design. The system includes a sophisticated fully independent dual auto-reverse cassette deck where deck-2 features separate 3-head Quick Reverse and amorphous-head mechanisms, Dolby HX Pro, Dolby B/C noise reduction, cross-dubbing capability and tape monitoring, allowing exceptionally accurate recordings from digital sources. Its CD player features a high-speed linear motor transport, a 4x oversampling digital filter for improved phase accuracy and reduced noise, plus extensive programming and recording functions. A quartz PLL synthesizer tuner with FM, AM and TV audio reception, memory presets and programmable timers completes this remarkably versatile package. Matching the electronics is an impressive pair of 4-way bass-reflex speakers featuring a 27 cm woofer with an amorphous silica fiber cone, dedicated midrange, tweeter and super tweeter, delivering a wide 35 Hz–25 kHz frequency response with deep bass and detailed highs. Finished in elegant wood cabinets and built to genuine hi-fi standards, the Prior CDS-999 stands among the finest Japanese 1980s midi component systems, offering a rare combination of flagship engineering, digital innovation and outstanding sound quality that continues to attract vintage audio enthusiasts and collectors alike. Specifications: Practical maximum output: 150W + 150W | Cassette deck - Wow and Flutter: 0.065 (WRMS) - Frequency Response: (-20VU) Metal 10Hz~20kHz Chrome 10Hz~19kHz Normal 10Hz~17kHz | Speaker Frequency response: 35Hz~25kHz | Center section dimensions/weight: 360 (W) x 419.8 (H) x 325 (D) mm / 20.4 kg | Speaker unit (single unit) dimensions/weight: 325(W) x 575(H) x 275(D) mm / 12kg | Original sale price in Japan: CD compact stereo system CDS-999 ¥248,000 (Price includes CD player, cassette deck, amplifier, tuner, and speakers) <Optional> MIDI component size DAT deck XD-999 ¥165,000

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Victor JP-V1000 | JM-S1000 (1975)

 

"Listening to today's voices and living for tomorrow's technology" was the slogan that was used to introduce this new professional audio system in 1975. The Laboratory 1000 series was handcrafted at the Victor Lab Center. The JM-S1000 power amplifier boasts 180W x 2, and a staggering 600W in BTL monaural operation. The JP-V1000, with its comprehensive 4-channel control functions, including 4 SEA channels and a pink noise generator, it not only offers ample adaptability for a wide range of professional applications, but also possesses the finest specifications befitting a master of sound—refined quality and outstanding reliability. The 1000 series is meticulously crafted with the pursuit of the best possible music reproduction from every angle, whether for studio monitoring, as the main system for discerning audiophiles, or as a primary system for music enthusiasts. Furthermore, slight specification changes are possible to suit your specific needs.

JM-S1000 model (Original sale price in Japan ¥480,000) Specifications: Stereo Power Amplifier Circuitry: All-stage direct-coupled Purecon Triple PP OCL Effective Output: 180W + 180W (20Hz-20kHz) | Peak/VU simultaneous display meter (with sensitivity switch) | 4-stage power limiter Dimensions (H) 212.5 × (W) 478 × (D) 488 mm (BTS rack mount) | Weight 30.5 kg

JP-V1000 model (Original sale price in japan ¥480,000) | Model: 4-channel preamplifier | 4-channel input level meter, 4-channel 7-element SEA | pink noise generator | microphone amplifier | headphone monitor amplifier | Dimensions: (H) 162.5 × (W) 478 × (D) 488 mm (BTS rack mount) | Weight: 18.0 kg

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Sansui D-X301i (1988)

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Lo-D DAD-003 (1985) | Digital Audio

 

Released in 1985, the Lo-D (Hitachi) DAD-003 was a sophisticated separate-component CD player system comprising the DAP-003 CD transport and HDA-003 digital processor (DAC). Developed as the more affordable successor to the acclaimed DAD-001, it retained many of Hitachi's advanced digital audio innovations, including a 3-beam optical pickup with Direct Pit Servo (DPS), a five-stage error correction LSI, and a high-precision linear-phase FIR digital filter with 2x oversampling for exceptionally accurate CD playback. The separate transport and DAC architecture minimized vibration, electrical interference, and power supply noise to deliver a clean, detailed sound. Premium construction, including a copper-plated chassis, vibration-damped components, and carefully selected audiophile-grade parts, further enhanced performance and reliability. Combined with comprehensive playback features such as 15-track programmable memory, multiple repeat modes, auto spacing, index search, delete and retain functions, a headphone output, and wireless remote control, the DAD-003 became one of the most advanced and cost-effective Japanese CD player systems of the mid-1980s, and the final separate CD player released under the Lo-D brand.

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Actuator employing a pure metal damping suspension system

Digital Filter

AKAI AP-Q80C (1980) | Unitorque Discolith

 

The AP-Q80C was introduced by Akai in 1980. This turntable features a robust die-cast chassis house with two motors, one of which regulates the speeds with quartz precision, and one for arm movement. The AP-Q80C turntable also features a microprocessor that will eliminate many manual steps. Regardless of the record size, it reliably selects the exact starting point and automatically switches the appropriate playback speed. Including the Ortofon LMB 12 cartridge, all the prerequisites for the most careful handling of your record collection are met. Operating errors are a thing of the past. If you want to listen to hi-fi music continuously, the repeat function is there for you. And if you want to fine-tune the record speed to your listening preferences, you can do so via the pitch control. To control it's functions there are a series of touch sensitive controls and a Digital display for selected speed and it's accuracy. Specifications: Full Automatic | Drive: Quartz Direct Drive Unitorque Discolith motor | Tonearm length: 220mm | Size (W/H/D) 440x140x403 | Weight 11kg | Original sale price in Germany 1150 DM 

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GRUNDIG RPC-450 (1978) | HiFi Studio

 

The Grundig HiFi Studio RPC 450 was one of the flagship all-in-one hi-fi music systems of its era, combining premium audio performance with advanced features and elegant styling. Designed as a true high-end integrated system, it brought together a powerful stereo receiver, automatic direct-drive turntable, Dolby-equipped cassette deck, and matching three-way speakers, delivering performance comparable to separate hi-fi components. A standout feature was its digital frequency display, which precisely indicated the tuned radio frequency and, on FM, could also display the selected station channel for exceptionally accurate tuning. At the heart of the system is a powerful receiver and amplifier section rated at 2 x 50 watts music power (2 x 30 watts RMS), featuring 18 touch-sensitive controls for convenient operation and reception across FM, MW, and LW wavebands. The integrated Dual 491 A automatic turntable is equipped with a direct-drive motor, an S-shaped tonearm, anti-skating adjustment, cueing lever, illuminated stroboscope, and a Shure DM 95 G magnetic cartridge, providing outstanding tracking accuracy and stable playback. The built-in hi-fi cassette deck complements the system with Dolby Noise Reduction, Variable Fade Technology (VAT), automatic stereo recording, a three-position tape selector for all cassette formulations, and a memory tape counter for added convenience. Completing the package are the Grundig HiFi Speaker 850, professional three-way loudspeakers featuring a woofer, dome midrange, and dome tweeter housed in stylish cabinets with removable grilles. Rated at 80 watts music power (50 watts nominal) with a frequency response extending down to 35 Hz and up to 26 kHz, they provide dynamic, full-range sound. Available in walnut, graphite metallic, or metallic light finishes, these speakers perfectly complement the sophisticated design and exceptional performance of the Grundig HiFi Studio RPC 450.

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SANSUI AU-405 (1999) | Pure Non NF

 

The AU-405 from Sansui introduced in 1999, a wide-range DC amplifier, was the world's first Pure Non NF circuit amplifier for vividly reproducing next-generation, high-quality digital sources. Built to experience realistic sound reproduction close to the original recording, thanks to the astonishing specifications of the new generation of Super Audio CD and DVD Audio (frequency range DC to 100kHz, dynamic range of over 120dB). This ultra-wide-range DC amplifier is unlike anything you'd expect from a mass-market device. The Pure Non NF circuit, which uses no feedback in the output stage, achieves powerful speaker drive. To drive speakers more dynamically, the AU-405 features a newly developed Pure Non NF circuit. This circuit design ensures that the output stage is unaffected by NF (Negative Feedback), allowing for smoother current supply for speaker drive. This significantly improves current response, enabling speakers to respond more faithfully to the music signal, resulting in smoother operation and a wider operating range. The dynamic range of the sound is expanded, dramatically improving the depth, clarity, and speed of the sound. The frequency response is DC~200kHz (±0dB, -3dB), making it an ultra-wide-range DC amplifier. It reproduces sound smoothly from low to ultra-high frequencies. A DC (direct coupling) amplifier amplifies signals directly and with high density from DC to high frequencies. Its greatest feature is that it is unaffected by the sound quality caused by capacitors in the signal path, and the low-frequency time constant can be reduced. Equipped with a Pure Non NF circuit, the AU-405 maximizes the capabilities of an ultra-wide-range DC amplifier, reproducing a wide range from sub-audible low frequencies to ultra-high frequencies of digital sources. Sansui's amplifier-making expertise has also been applied to the power supply section, which can be considered the heart of the amplifier. By employing a heavy-duty power transformer with enhanced vibration damping and heat resistance through high-density filling material, and audio-specific electrolytic capacitors with excellent charge and discharge speeds, it is possible to quickly supply power to cope with the rapidly changing dynamic range of digital sources and generate a generous 80W + 80W (60) high power. A newly developed strap-mount structure controls vibrations of the power transformer. The AU-405 employs a strap-mount system to suspend the power transformer upside down from the top of the body as a vibration countermeasure. This unique structure utilizes the weight of the transformer, which is filled with high-density material, to effectively prevent the transmission of vibrations and protect sound quality. Four modes of presence control allow you to freely adjust the optimal frequency balance. "Loudness 1 & 2" boosts both high and low frequencies simultaneously, while "Bass Boost 1 & 2" only increases the low frequencies, which are often lacking in small speakers. Selected high-grade parts enable superior sound quality that surpasses its class. Sansui have carefully selected audio components, including electrolytic capacitors and resistors, without making any compromises. Furthermore, thoroughly ensured that each component is made of non-magnetic material and has excellent vibration damping performance. Specifications: Effective output (20Hz~20kHz, both channels operating simultaneously): 80W+80W(60), 60W+60W(80) | Total Harmonic Distortion (20Hz~20kHz, effective output): 0.07% or less (80) | Intermodulation Distortion (effective output, 60Hz:7kHz=4:1, SMPTE method): 0.07% or less (80) | Frequency response: PHONO (MM) 20Hz~20kHz (± 0.5dB), CD, TUNER, DVD AUDIO/LINE, MD/TAPE-1,2-DC~200kHz (+0dB, -3dB) | S/N ratio (A network, short circuit): PHONO (MC) 70dB or higher, PHONO (MM) 88dB or higher, CD, TUNER, DVD AUDIO/LINE, MD/TAPE-1,2 110dB or higher | Tone control: BASS maximum change amount ±8dB (50Hz) TREBLE maximum change amount ±8dB (10kHz) | Subsonic filter: 16Hz (-3dB), 6dB/OCT | Rated power consumption: 160W | Dimensions: 430(W) x 136(H) x 365(D) mm | Weight: 10.5 kg

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SONY TC-KA7ES (1994)

 

Released in 1994, the Sony TC-KA7ES was the flagship model of Sony's final ES Series cassette deck lineup and the company's last true high-end cassette deck. Designed as a no-compromise audiophile recorder, it combined an advanced closed-loop dual-capstan, quartz-locked direct-drive transport with a 3-phase brushless slotless (BSL) motor, oversized precision capstans, and sapphire-supported Lapis bearings to achieve exceptionally stable tape handling and an ultra-low wow and flutter figure of just 0.022%. Its three-head configuration featured Sony's renowned laser-formed amorphous recording/playback head, wound with ultra-pure 6N oxygen-free copper wire and enhanced by a pad pressure reduction mechanism that minimized tape modulation while improving contact accuracy. The carefully engineered midship drive layout isolated the transport, power supply, audio circuitry, and control sections to reduce interference, while separate recording and playback amplifier boards, a 210 kHz Super Bias system, low-impedance output stage, and premium single-crystal ESC-OCC copper wiring ensured outstanding signal purity. Mechanical construction was equally impressive, with a copper-plated FB chassis, vibration-damping eccentric insulators, dual R-core transformers housed in shielded resin cases, a rigid ceramic composite cassette holder, aluminum cassette door, Sorbothane stabilizer, and delayed-action tape clamping system all working together to suppress resonance and maintain precise tape alignment. The TC-KA7ES also featured comprehensive recording tools, including Dolby B, Dolby C, Dolby S, Dolby HX Pro, and an advanced 3-point recording calibration system for optimizing bias, sensitivity, and equalization to suit virtually any cassette formulation. A fluorescent peak level meter, linear time counter with time remain function, and the supplied RM-J701 wireless remote completed the package. Widely regarded as Sony's ultimate cassette deck, the TC-KA7ES delivered the powerful, refined sound that defined the ES Series while showcasing the company's most advanced analog recording technologies. Production ended in 2001, marking the end of Sony's high-end three-head cassette deck era. Specifications: 3-head Laser Amorphous |  Motor: Linear Torque BSL DD Motor:1 DC Motor:2 | Signal to noise: 57dB (EIAJ, Dolby NR off, metal tape) 80dB (Dolby NR S, peak level, metal tape, auditory correction) | Frequency response 15Hz–22kHz ±3dB (EIAJ, -20dB recording, metal tape) 15Hz–16kHz ±3dB (-4dB recording, metal tape) | Wow and flutter (EIAJ) ±0.04%Wpeak 0.022%WRMS | Dimensions: Width 430 x Height 135 x Depth 380 mm | Weight 12kg | Original sale price in Japan ¥120,000

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DENON DCD-1500 (1986) | Super Linear

 

The Denon DCD-1500 is a high-performance CD player engineered to deliver exceptional sound quality through a range of advanced digital and analog technologies. At its core is Denon's innovative Super Linear Converter system, which minimizes D/A conversion errors by adding a correction signal generated through an error detection and compensation circuit. This effectively eliminates the zero-cross distortion commonly associated with early CD players, resulting in smoother, more accurate audio reproduction. The DCD-1500 employs two Super Linear Converter circuits along with a dual D/A converter architecture, using independent digital filters for the left and right channels to improve channel separation, stereo imaging, and overall sonic precision.

To ensure outstanding digital performance, the player features a high-precision 2x oversampling digital filter with an ultra-flat frequency response, complemented by Denon's Computer Analyzed Linear Phase analog filter, which maintains exceptionally linear phase characteristics and flat group delay up to approximately 30 kHz. The transport mechanism is designed for stability and reliability, utilizing a newly developed three-beam optical pickup with fast-response servo circuitry for highly accurate tracking and focus control. A rigid glass fiber-reinforced BMC (Bulk Molding Compound) pickup base, a vibration-isolated floating chassis with Q-Dump construction, and a magnetic disc clamper work together to minimize the effects of vibration and resonance during playback.

The DCD-1500 also benefits from a sophisticated power supply design, with separate regulated power sources for the digital, servo, audio, and display circuits to reduce electrical interference and preserve signal purity. Its DC-coupled audio output stage with servo control further enhances sound accuracy. In addition to its audiophile-grade engineering, the player offers a comprehensive feature set including programming for up to 20 tracks, direct track access via a numeric keypad, index search, quick track selection, A-B and program repeat modes, timer playback compatibility, variable analog output, a dedicated subcode output terminal, and a supplied wireless remote control, making the Denon DCD-1500 a versatile and highly capable vintage CD player.Dimensions: 434 x 89 x 350 mm (WxHxD)

Weight: 6,0 kg | Original price in Germany approx.: 1'500 DM

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National RX-5500 DiscoMAC (1979)

 

The National (Panasonic) RX-5500 is one of the most iconic portable stereo cassette recorders of the late 70s - early 1980s, combining true component-level performance with the convenience of a portable - "stereo with a handle." Marketed as National DiscoMAC in Japan while the export models were part of Panasonic's prestigious Platinum Series and promoted by the legendary band Earth, Wind & Fire. The RX-5500 was designed to deliver "Platinum Power" with exceptional sound quality, advanced recording capabilities, and premium construction. Despite its premium price...

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Aurex RT-CDW70X (1987) Japan TV advert More

 

Aurex RT-CDW70X (1987) Japan TV advert

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ADDZEST 715 Series (2001)

 

Beautiful sound and visuals that dominate the car's interior. These are the DXZ715 AM/FM CD player with mp3 and CD changer controller and the MSZ715 MiniDisc in 1-DIN+1-DIN car audio format. The new Beat EQ (BEQ1) allows for more effective sound correction by independently adjusting the low, mid, and high frequencies. You can freely select from three patterns: IMPACT (BEQ2) for clear mid-range reproduction, and EXCITE (BEQ3) for a well-balanced sound from low to high frequencies. It also features a customization function to suit your preferences. The AUX input is a convenient feature that allows you to easily input audio output from external devices via line input. By connecting to the RCA terminals located on the back, you can play sound directly from your preferred device. Built-in 50W x 4ch high-power amplifier. It incorporates a 50W X 4-channel high-power amplifier employing hyper-vertical output transistors. It delivers optimal drive performance at all output levels from low to high frequencies, greatly contributing to ample high-power output and wide-range, high-quality sound reproduction. The 24-bit DAC boasts excellent linearity in the minute signal range, combined with a high signal-to-noise ratio and a wide dynamic range. It fully brings out the superior musicality inherent in CDs, faithfully reproducing even the subtle nuances that cannot be expressed with 16-bit audio, such as the breath of the vocalist and the tone of the instruments. Real Aluminum Face panel. The real aluminum face was created through advanced processing and surface treatment technologies. Combined with the clickless aluminum hot knob dial, it achieves a high level of balance between functional beauty and high quality. The MD deck utilizes a 1DIN space and can be combined with the DXZ715 or DXZ815MP. Its unified aluminum design provides a component-like feel. Analog level meter. The analog-like level meter evokes the atmosphere of high-end home audio. Its vibrant colors stand out in the car's interior. Original sale price ¥42,000 x 2 | Separate steering wheel remote control RCB-147-500 (ADDZEST is a Clarion brand name for the Japanese market)

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KENWOOD DA-9010 (1988) | Digital Integrated Amplifier

 

The Kenwood DA-9010 is a premium integrated amplifier with a built-in DAC, introduced in 1988 as the final and most advanced model in Kenwood's series of digital integrated amplifiers. Following the growing popularity of amplifiers with integrated digital-to-analog converters in the late 1980s, Kenwood developed the DA-9010 as the successor to the D-3300A and DA-1100EX, creating a highly refined amplifier that combined powerful analog performance with advanced digital technology. Compared to the earlier KA-1100 series, the DA-9010 featured a substantially upgraded output stage using a parallel push-pull design with four high-power output transistors, providing improved current delivery and excellent control over low-impedance speakers. The amplifier was powered by a large 440VA transformer weighing 6kg, supported by dual 15,000μF filter capacitors to ensure stable power delivery and impressive dynamic performance. To minimize noise, Kenwood equipped the amplifier with its Clean Cyclone power supply and Pure Signal Ground Line architecture, separating music signals from power supply noise for greater clarity and lower distortion. The carefully planned internal layout shortened the signal path, isolated the power supply from the audio circuitry, and included a Source Direct mode for the cleanest possible signal transmission. A rigid 1.6mm steel chassis further reduced vibration and improved overall stability.

The digital section featured an advanced 18-bit dual DAC with an 8x oversampling digital filter and Kenwood's Real Step Full Bit D/A Converter technology for improved linearity. A Twin Quartz PLL clocking system ensured highly accurate digital conversion, while the proprietary DPAC (Digital Pulse Axis Control) system reduced jitter immediately before D/A conversion for enhanced detail and imaging. Ground-isolated balanced transmission between the DAC and amplifier stages further prevented digital noise from affecting the analog signal. Connectivity included six analog inputs, including MM and MC phono compatibility, plus optical and coaxial digital inputs for CD players and other digital sources. Video switching facilities reflected the multimedia trends of the era, while the supplied wireless remote controlled volume, muting, and digital input selection. To eliminate interference from the remote-control circuitry, Kenwood isolated the microcontroller from the audio circuits using optical photocouplers.

The DA-9010 was designed to partner the Kenwood DP-X9010 CD transport, forming a sophisticated digital playback system. As Kenwood's last integrated amplifier with a built-in DAC, it represents the culmination of the company's late-1980s digital amplifier development, delivering excellent build quality, advanced engineering, powerful performance, and a balanced, detailed sound that continues to make it a sought-after vintage hi-fi component. Specifications: 105 W/ch (8ohm, 20Hz-20kHz) | THD 0,0008% (1kHz, CD 8ohm) | D/A Sampling frequencies 32kHz, 44.1kHz, 48kHz (automatic switching) | Dimensions (W/H/D) 440x162x422xmm | Weight 18kg | Remote RC-A9010 | Original sale price: Japan ¥ 91,100, Germany 1.598 DM

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