Showing posts with label Technics. Show all posts
Showing posts with label Technics. Show all posts

17 October 2021

Technics RS-1800 (U-76) (1978) - Professional in Every Sense of the Word

reel to reel

After the introduction of the initial 3 "Isolated Loop" models (RS-1500/1506/1700) Technics decided to create the Ultimate Isolated Loop model, this was the RS-1800 (U-76 in Japan). With this new model Technics added a new tape speed - 76 cm/s (30 ips). The RS-1800 has 3-speed operation capability: 76 cm/s. 38 cm/s and 19 cm/s and can be used for 2-track recording/playback and for 4-track playback. The faster tape speed is also beneficial from the point of view of tape transport stability: wow and flutter of less than 0.010% WRMS (0.02% DIN) and tape speed deviation of less than +/-0.08% at 76 cm/s. Such high performance specifications as these are, quite naturally, supported by the 3-motor Direct Drive system used since the RS-1500, a Quartz-Locked capstan motor and dual reel motors with a tape tension control system. The RS-1800 also features pitch control with quartz-locked accuracy at all setting that are Digitally displayed by LED's, together with, at the same time, rated speed setting. The same display will also show elapsed tape transport time indicated in hours, minutes and seconds. The "Auto-Play" function is especially convenient to playback a master tape, which is usually wound up when it "tails out". In order to obtain the maximum potential from the extended high-frequency response of the 76 cm/s tape speed, the 2-track recording head, the 2-track playback head and the 4-track playback head of the RS-1800 use the SX (Sendust Extra) type of head. 

The RS-1800 is a two box unit where the upper section contains the tape transport while the lower box is the amplifier unit. The unique feature of the amplifier unit, and the most practical feature as well, is this capability for automatic adjustment of bias and equalization. If the bias/equalization selector is set to "auto" position during tape movement in recording mode, the LED lamp illuminates in red, a 1 kHz test tone is generated and the automatic adjustment of the bias begins. After about 15 seconds the equalization is then automatically adjusted, and the lamp flickers during this period. When both of these adjustments have been completed, the color of the LED will change to green. This setting will be retained in the memory, even if the power is turned off, until the selector is set to the "manual" position. An oscillator is also provided separately for manual adjustments which can be made in 4 steps. The playback equalizer is adjusted to conform to NAB standards, but there is also a 2-position selector on the rear panel of the transport unit for IEC standards. Technical specifications: Wow and flutter: 0.01% WRMS at 76 cm/s | Frequency response: 30-35.000 Hz (+/-3 dB 76 cm/s) - 30-30.000 Hz (38 cm/s) - 30-25.000 Hz (19 cm/s) | Signal-to-noise ratio 62 db at 76 cm/s | Transport: 500x443x347 mm / 36kg | Amplifier: 500x223x389 / 16.6kg. | Original sale Price: 15.000 DM in Germany, 950.000 Yen in Japan. (Optional RP-070 infrared remot control.)

reel to reel

reel to reel

reel to reel

reel to reel

reel to reel

reel to reel

reel to reel

reel to reel
Technics 10000 Series




10 September 2021

Technics SA-007 (1984) - Ultra Compact Hi-Fi System

Ultra Compact Hi-Fi System

This ultra compact system (only 180 mm wide) from Tehnics was introduced in 1984. It consists of the following full metal construction components: SA-007T Quartz Synthesizer tuner with 6 presets, SA-007C stereo control amplifier, SA-007D front loading full logic controlled cassette deck with Dolby and dbx noise reduction and manual recording level setting for normal/chrome/metal tapes, SA-007P 28W/ch stereo power amlifier with peak power meters. Additional components included the SH-007E 12 band graphic equalizer and a small dedicated rack. In 1987 it received a "Haus Industrieform Essen" design award. A rare silver version also existed. 

Ultra Compact Hi-Fi System

Ultra Compact Hi-Fi System

Ultra Compact Hi-Fi System

Ultra Compact Hi-Fi System

Ultra Compact Hi-Fi System



28 August 2021

Technics RS-B100 (1983) - The Science of Sound

cassette deck

The RS-B100 cassette recorder from 1983 is a deck that brings together every feature even the most demanding audiophile could desire. The Quartz DD Closed-Loop Double Capstan is an advanced tape transport system designed to maximize speed accuracy and protect tape from outside influences when it is in contact with the heads. There are two capstans, one on either side of the head block. The take-up capstan is an extension of the Technics planar opposed direct drive motor spindle. Employed for the first time in the RS-B100, the innovative Phase Compensation circuitry rectifies high range phase linearity. So you enjoy a dramatic improvement in sound quality. Playback amplifier performance is supplemented by direct coupled construction using dual FETs. Since there are  no coupling capacitors in the signal path, you obtain the full benefits of Phase Compensation circuitry. The RS-B100 has all three of the world's finest noise reduction systems. Equally important, they are all in double circuits so you can enjoy 3-head real-time monitoring with correct NR decoding. dbx provides up to 110dB dynamic range while virtually eliminating noise. An added benefit is the built-in dbx disc decoder for playback of dbx encoded records (vinyl). Dolby C and B noise reduction assure complete compatibility with other decks and prerecorded cassettes. The MPX filter can be switched on to avoid NR mistracking when recording FM broadcasts. 

The RS-B100 features AX (amorphous) combination 3-head system. The noble metal ruthenium (Ru), combined with carefully balanced admixtures, provides higher saturation flux density in the recording head and grater permeability in the playback head. Of course, the wider 2.5 micron recording gap width also contributes to higher MOL while the narrower 0.8 micron playback head gap extends high frequency response. The Technics combination head avoids azimuth adjustment problems since the recording and plyback head gap angles are precisely aligned in a computer controlled manufacturing process. Besides the DD capstan motor, the RS-B100 uses a second, high torque, DC motor for reel drive and one additional motor to move the head block.The RS-B100's advanced metering system uses 18 fluorescent display segments to show the signal level from -40dB to +18dB. This wide range more accurately reflects the higher recording levels possible with dbx. The RS-B100 lets you take advantage of the strong points of particular tapes for specific applications. Left and right channel recording calibration is independent and bias can be adjusted for normal and chrome tapes. As shown in the photo, the meters automatically switch to 1dB-step indication when the test signal (400Hz/12.5kHz) oscillators are used. The 3-way Digital Tape Counter can be switched to show remaining tape time, elapsed rec mute time and a highly accurate 3-digit tape counter. Other features include: music search, output level control, timer capability, black and silver input level knobs included and optional remote control (RP-9645) available. Technical data: Frequency response: Metal 15-25000Hz (20-23000Hz +/-3db), Chrome 15-23000Hz (20-21000Hz +/-3dB), Normal 15-21000Hz (20-19000Hz +/-3dB) | Dynamic range 110dB with dbx | Dimensions: 430x98x273 mm | Weight 5.6kg

cassette deck

cassette deck

cassette deck

cassette deck

cassette deck

cassette deck

cassette deck


31 July 2021

Technics RS-1500/1506 (1976) - Professional in Every Sense

 

reel to reel

Both performance and operational advantages of the "Isolated Loop" tape path introduced in the Technics RS-1500US and RS-1506US qualify these professional units not only state-of-the-art, but as the begining of a new technological generation. To realize the full potential possible with this design, there was no choice but to employ an all direct-drive tape transport system, with quartz-controlled, phase-locked servo control. Electronically as well, these units were built as an uncompromising challenge to tape decks now available. Separate microphone amplifier, recording amplifier, mixing amplifier and three-way bias and equalization controls all serve to help assure flawless recording and playback under any circumstances. Unique in tape recorder technology, the capstan of the RS-1500US is 34 mm in diameter, for increased tape contact and less possibility of slippage. 

By means of two pinch rollers in contact with the same capstan, an isolated, closed-loop system is formed. The direct-drive oncept was originally introduced by Technics in 1969, for use in high-grade turntables, and was adopted in the Technics RS-275US cassette deck in 1970. In 1976 with the introduction of the the RS-1500US, direct-drive is applied to a tape transport system (the capstan, flywheel and motor all rotate as a uniform entity) ​The direct-drive principle extends to the reel motors, also. Brushless DC motors of very high torque, with electronic commutation, are unitized with the diecast reel tables. The RS-1500US is designed for 2-track recording and playback as well as 4-track playback of tapes made on other decks. The RS-1506US is designed for 4-track recording and playback as well as 2-track playback of tapes made on other decks. Technical data: Tape speed: 38 cm/s, 19 cm/s, and 9.5 cm/s Frequency response: 30-30,000 Hz (38 cm/s) 20-25,000 Hz (19 cm/s) 20-15,000 Hz (9.5 cm/s) Dimensions 45.6 x 44.6 x 25,8 cm Weight 25 kg.


reel to reel

reel to reel

reel to reel

reel to reel

reel to reel

reel to reel

17 April 2021

Technics SB-AFP1000 (1988) - Superlative Audio Flat Panel Speaker System

 

Loudspeaker

The SB-AFP1000 was an audio flat-panel speaker developed by examining as many as 80 types of test models and thoroughly performing computer simulations. The speaker used a unique twin-cabinet system with both sealed sections and open sections present at the same time in one cabinet. The speaker included eight 30-cm x 80-cm flat units for the low frequencies and four 13-cm x 32-cm flat units for the lower midrange frequencies. In particular, the diaphragm area for the low frequencies was equivalent to a cone woofer with a diameter of 152 cm, and at 124 dB the speaker attained amplitude of 1.27 mm (at 50 Hz). This enabled bass reproduction with low distortion. Characteristic of the AFP was that the bass was emitted in flat waves, and so the system was resistant to adverse effects such as due to indoor refection, and attenuation due to distance was extremely low. As a result, powerful, deep bass extended to the far corners of the space, and the listener was able to feel the subtle air fluctuations with his entire body. The cabinet was given a black-coating mirror finish. The first Audio Flat Panel AFP1000 was delivered to the world renowned Vienna State Opera House for use in playing the performances of singers and orchestras during rehearsals. The modular construction of the AFP System allowed creation of various combinations from "wall to wall" systems to downsized models such as the SB-AFP100 and SB-AFP10.

Loudspeaker

Loudspeaker

Loudspeaker

Loudspeaker

Loudspeaker

Loudspeaker



07 March 2021

Technics SB-M10000 (1995) - The Final Word in Sound Perfection

 

Loudspeaker


The Technics SB-M10000 introduced in 1995 is a 4-Way 12-Speaker limited series loudspeaker system. The SB-M10000 used Dual Dynamic Drives (D.D.D.) that achieved flat response down to super-low frequencies. By developing a Kelton speaker system that alone is capable of the advantages of both sealed speakers and bass-reflex speakers, the SB-M10000 achieved ample frequency response reaching down to deep bass. The speaker was capable of easily reproducing deep bass with a sense of natural and magnificent scale as if floating. The speaker included four passive radiators with 27-cm cones for the low frequencies and four 22-cm cone woofers for driving. Unique push-pull edges reduced distortion by equalizing the amount of air displacement back and forth when amplitude occurs. The speaker included two 18-cm mid-low units using composite mica diaphragms for the lower midrange frequencies, a 6-cm pure-mica oval dome diaphragm unit for the upper midrange frequencies, and a 2.5-cm super graphite dome tweeter for the high frequencies. Given a multi-layer glossy veneer finish limiting diffraction reflection, the cabinet produced a tallboy form increasing the sound imaging in the space. The original sale price was 90.000 DM for a pair. According to some (yet unverified) sources there were only 8 pairs made. Technical data: Frequency response: 20Hz to 100kHz | Impedance: 4ohm | Dimensions: 486*1575*575 mm | Weight: 160kg (Source: Technics)


Loudspeaker

Loudspeaker

Loudspeaker

Loudspeaker









21 February 2020

Technics RS-279US (1973) - First 3 Head Deck by Technics

cassette deck

Introduced in 1970 the Technics RS-275U was the World's First cassette deck to employ the Direct-Drive system developed for turntables. Based on this 2 motor solenoid controlled mechanism with Direct Drive capstan and DC motor for the reel-table-drive, Technics introduced it's first 3 Head cassette deck, the RS-279US in 1973. Being an early 3 head cassette deck the head arrangement is slightly different than the standard arrangement later used by 3 head models. The erase head is a full size head followed by a recording/playback head (as in 2 head arrangements). 

The third head is a monitoring head (small window) located between the recording/playback head and pinch roller. Both the recording/playback and monitoring head use the HPF (high pressure ferrite) head with 10 year guaranty developped by Technics. Another unusual feature of the deck was the Dolby noise reduction with adjustable level. (L and R channel independently adjustable). Frequency response is 20-16000 Hz with normal tape and 20-18000 Hz with Chrome tape ... while externally it measures 440x115x325 mm. The deck can be remote controlled via the RP-9275 wired remote while for transportation the RP-985 solid carry case was sold as accessory. The deck was sold under National Panasonic | Technics by Panasonic | Technics with a National logo | or simply Technics, brand names, while the remote control was a National Panasonic branded model.

cassette deck

cassette deck

cassette deck

cassette deck

cassette deck

cassette deck

cassette deck

cassette deck