21 March 2025

Victor DC-5500 (1987) | Compact Disc Stereo System

 

Victor DC-5500 (1987) | Compact Disc Stereo System

High quality sound. Optical Link CD player with editing functions
●OPTICALINK optical transmission method. The digital and audio circuits are electrically separated to prevent digital noise from affecting the audio section. The pure digital signal is converted into light and sent to the audio circuit. In addition, a newly developed high-order digital filter cuts out unnecessary signals, further refining the sound quality.
●Editing function. This is a convenient function when you want to record a CD exactly onto a tape. First, use the CD's 10-key pad to specify the desired recording time. Then, the program will automatically program all the available tracks from the first track onwards. If there is enough tape, the display will show all the available tracks other than the tracks you have programmed.
● 32 songs can be randomly programmed with 10 key input. Direct track selection is possible using the remote control or the 10-key pad on the unit, and up to 32 tracks can be selected randomly by pressing the program key once. Additional programs and programming with the CD tray open are also possible.
●Timer play. The tuner's built-in timer allows you to select a CD as the source and playback will begin at the set time.
●Easy-to-read, convenient 20-song program chart 
●Random play/random intro play ●Five types of repeat function: all songs/1 song/program (1-32 songs)/random/A→B interval The large 8-digit FL display shows track numbers, indexes. Displays the total playing time, total remaining time, playing time of each song, and remaining time of each song independently for each number. Displays the cumulative time of programmed songs.

A powerful ally in tape editing. Equipped with an electronic counter (full logic, double reverse deck)
● Electronic counter for accurate tape editing. The use of an electronic counter has made tape editing more accurate than with conventional analog counters. Of course, the high level of operability is unique to the full logic mechanism. Tape play, which is at the heart of your audio life, will become even more enjoyable. (The counter is displayed on the hyper-active display.)
● Counter Repeat & Multi Music Scan (MMS). Counter Repeat is a function that plays back the exact part between two specified points by an electronic counter. It is suitable for checking a part you are interested in. Multi Music Scan (MMS) is a function that allows you to specify up to 99 songs before and after the specified point.
●CD direct recording. With one touch, the CD player and deck start simultaneously.
●Double speed dubbing
●Auto tape selector (metal/chrome/normal) 
●Dolby B NR 
●Timer play (playback/recording)

Total 120W (High-power integrated amplifier)
● Hyper-active display that realistically conveys the movement of your components. Sound source/Tape counter/Graphic equalizer/Message. It not only indicates the source play/stop, the number of tracks on the tape to skip, and the pattern name of the programmed memory of the graphic equalizer each time the remote control is operated, but also lets you input the tuner station name, the manually set graphic equalizer pattern name (6 characters) and a message (up to 14 characters).
●High power output of 120W for digital sound. When adjusting the volume with the remote control, the red indicator flashes as it rotates. Of course, the CompuSign also transmits continuously in sync with the flashing. The motor-driven volume control mechanism prioritizes sound quality, resulting in a good signal-to-noise ratio and making it suitable for Hi-Fi CD playback.
●CompuLink CD/PHONO/VIDEO(AUX)/DAT external input terminals for one-touch operation of sound source switching and each unit using the remote control ●Built-in surround circuit 
●Built-in microphone mixing circuit 
●Power can be turned on/off using the remote control

L/R independent 7-band equalizer with Spectrum analyzer
●Display and correction are independent for L and R. The left and right spectrum analyzers display the stereo L and R audio independently. Corrections can also be made separately for L and R, making for a more dynamic sound. This allows for subtle sound creation.
●Program 12 patterns. The graphic equalizer is pre-programmed with six patterns (HEAVY-CLEAR-SOFT VISUAL, VOCAL, CAR) that suit the type of music. In addition, you can manually store up to six of your favorite patterns. A total of 12 patterns can be stored. 
●Seven bands: 63, 160, 400, Ik, 2.5k, 6.3k, 16kHz 
●Peak hold function makes it easy to check the spectrum analyzer (can be turned on/off on the main unit)

Preset Digital Synthesizer Tuner
● 4 bands with audio multiplexing/36 station presets. It has 4 bands, including 62ch audio multiplex broadcasts. It can preset 36 stations in total, 12 for FM, AM, and TV (VHF/UHF).
●Multi program timer. 
You can select the desired sound source from seven sources, including CD and DAT, and set the timer to play twice a day (ON/OFF x 2).
●The timer can be set from 5, 10, 15 minutes to 120 minutes in 15 minute intervals.

The sound of diamonds. A 3-way speaker system perfectly suited to digital sound.
●Diamond diaphragm. The tweeter uses a diamond diaphragm. This achieves transparent high-frequency reproduction.
●23.5cm large woofer with ARC cone .A large 23.5cm woofer with a high-rigidity ARC cone.
●Round baffle & SFS enclosure. Round baffle with rounded edges on the cabinet, this improves the directional characteristics.
(Victor is a JVC - Japan Victor Company - brand name for the Japanese market)


Victor DC-5500 (1987) | Compact Disc Stereo System

Victor DC-5500 (1987) | Compact Disc Stereo System

Victor DC-5500 (1987) | Compact Disc Stereo System

Victor DC-5500 (1987) | Compact Disc Stereo System

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20 March 2025

Victor AX-S5 (1992) | Advanced Super-A

 

Victor AX-S5 (1992) | Advanced Super-A

Power and Dynamics. Sound quality and outstanding reliability - these are the groundbreaking results of many years of experience in audio technology. The AX-X5 also guarantees amplifier technology of the highest standard, which is particularly evident in the precise reproduction of quiet musical passages. Because the susceptibility of the audio signal to interference is particularly high at low levels. That's why Victor has developed a high-precision differential amplifier that eliminates all types of interference such as common-mode noise or mains hum. Crosstalk effects are reduced to a minimum by short signal paths in conjunction with relay-controlled program source selection and a separate design of the power stages. And selected components ensure maximum operational reliability and long-term quality. Sold on the International market as AX-A662BK this is a convincing realization of the JVC philosophy: a digitally compatible amplifier that reproduces the subtlest nuances with pure sound while offering large power and dynamic reserves. Hermetically sealed relays and selected components for the best possible fidelity. The Advanced Super-A circuit, a JVC-specific contribution to audio technology, delivers the sound quality of conventional Class-A amplifiers, known for their low distortion across a wide frequency range. Instead of electronic switches, relays are responsible for switching operations to further reduce noise and shorten the cable paths to a minimum, because every centimeter of transmission path results in signal loss. The inputs have been equipped with buffer stages to ensure effective decoupling of the input stage and higher transmission fidelity. The high-precision differential amplifier delivers a wide dynamic range, more precise sound resolution, and greater sound presence.

Technical data:
2 x 140 watts 4 ohms at 1 kHz (DIN)
Frequency range: 5-100.000Hz
Size (WxHxD): 435x173x447mm
Weight: 13kg
Aluminum front panel and large vibration dampers for low-resonance operation


Victor AX-S5 (1992) | Advanced Super-A

Victor AX-S5 (1992) | Advanced Super-A

Victor AX-S5 (1992) | Advanced Super-A

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19 March 2025

PIONEER CT-770 (1980) | All Day Compo

 

PIONEER CT-770 (1980) | All Day Compo

The CT-770 is a stereo cassette deck equipped with ribbon sendust head and an Auto BLE system. This head is made by laminating 11 sheets of ribbon sendust thinned to a thickness of 50 microns, which suppresses the occurrence of eddy current loss, which is a problem with metal heads, and improves high-frequency characteristics. In addition, it is a combination type that allows the optimum gap width to be set for each recording head and playback head, and also prevents azimuth deviation. It is equipped with an Auto BLE system that allows recording adjustment to match the tape characteristics. The Auto BLE system enables optimal recording by adjusting the recording bias, recording level (tape sensitivity), and recording equalizer to the tape characteristics used by the built-in microprocessor's 4-bit arithmetic processing. When the tape is set and the Auto BLE button is pressed, adjustment is completed in 10 seconds, and the tape is automatically rewound to the start position and enters recording standby mode. The mechanism uses a closed-loop dual capstan system, which improves head contact by always keeping the tape tension constant, and suppresses dropouts, level fluctuations, modulation noise, and flutter components. The mechanism uses an electronically controlled DC torque motor with a built-in generator and a DC high torque motor to ensure high stability. In addition, a dedicated electronic servo motor is used for the head base drive, and the head base moves up and down extremely quietly, reducing damage to the head. In addition, the ejection also uses a motor drive method that utilizes the rotational force of this motor. The display section uses a centralized display board, and the tape running status, level meter, tape type, and Dolby NR system ON/OFF are displayed by LEDs. It is equipped with a two-color LED level meter with excellent response speed. It is also worth to be noted that there was another, completely different CT-770 for the international market in 1986. Something that is not the first time in the history of Pioneer. 

Technical data:
Heads:
Recording Ribbon Sendust
Playback Ribbon Sendust
Erase Special alloy head
Motors: 2 DC servo 
Wow & Flutter: Less than 0.035% (WRMS)
Frequency Response:
Normal tape (-20dB recording): 20Hz to 20kHz
Chrome tape (-20dB recording): 20Hz to 21kHz
Metal tape (-20dB recording): 20Hz to 21kHz
Additional Features: Auto BLE system (automatic bias, level and equalizer adjustment)
Dolby system (with LED display)
2-color LED level meter (-20 to +8 dB)
3-digit tape counter
Memory stop
External dimensions: Width 420 x height 130 x depth 358 mm
Weight: 8.2kg

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