Technics High Grade Components (1976)

 

Pictured High Grade Compnents from Technics are:

(Top to bottom, left to right)

SB-7000 "Linear Phase" 3-Way Speaker System

SE-9600 Stereo Power Amplifier

SH-9090 Universal Frequency Equalizer (mono)

SP-10MKII/205C-11H/EPA-100/SH-10B Turntable/Cartridge/Tonearm/Turntable base

TE-903 Audio Timer

RS-690U Tape Transport

SU-9600 Stereo Control Center

RS-1500U 2-Track Reel to Reel Recorder

SH-830 Audio Rack

RS-690U Stereo Record/Reproduce Amplifier

SH-9090 Universal Frequency Equalizer (mono)

ST-9700 FM Stereo Tuner

SL-1350/205C-11S Direct Drive Automatic Player System/Cartridge

SB-7000 "Linear Phase" 3-Way Speaker System

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SANSUI AU-alpha907NRA (1998)

 

A flagship model that will create history in sound. The pinnacle of integrated amplifiers, the "907" models have changed throughout the years. Now here is the AU-alpha907NRA. Equipped with the Ultimate Q-X balanced circuit, which brings together the best of Sansui's original technology. The current margin of the driver stage has been doubled to Class A operation, and the circuit itself has achieved outstanding dynamic characteristics and wide range and high speed in all transmission and amplification processes. The final stage has been changed to a single drive balanced push-pull configuration, and is equipped with a NM-LAPT with Pc (collector loss) of 200W, which is suitable for high power amplification, which was used in the power amplifier B-2302. The powerful power supply section uses a high-performance power transformer with a total weight of 13kg. By sealing a high-density filler inside the four-layer shield, vibration during operation has been suppressed and the stable current supply capacity has been greatly improved. The capacitors, film capacitors, and resistors are of the highest standard, developed for Sansui's VINTAGE series, and are used in an ideal combination. The speakers are connected to terminals made of OFC alloy and 24-carat hardened gold plated by WBT of Germany, which has little signal loss. Banana plugs are also supported. The pure copper elliptical insulators made of genuine leather, which provide excellent vibration damping properties, and the volume knob machined from solid aluminum are all carefully considered to maintain the purity of the sound. The music signal is transmitted and amplified with high purity by connecting it from input to output in the shortest possible distance. The signal connected to the three direct inputs is sent directly to the power amplifier section without passing through the preamplifier circuit. In addition, a balanced input terminal is also provided, allowing you to create an ideal balanced operating environment for the entire system. A new heat sink with an elliptical hole on which the power board equipped with the isolated mechanical feedback steel plate and the Ultimate X-Balance circuit is assembled. In the 907NRA, the power transformer, the largest source of vibration, is mounted floating from the chassis. This isolates the power supply system from vibrations and eliminates mechanical interference. In addition, the heat sink, which acts as a resonating plate when mounted directly on the power transistor, has been thoroughly redesigned to effectively disperse the resonating effect. Combined with the reinforced twin mono construction that structurally controls the vibrations of the power supply and signal systems and the isolated mechanical feedback that effectively blocks the transmission route of vibration, this complete vibration countermeasure realizes ideal sound field performance. Good Design Award winning product.

Main specifications 

Power amplifier section 160W+160W (8oHm) 

Total harmonic distortion (at effective output): 0.003% 

Damping factor: 150 

Frequency response (1W): DC~300kHz

External dimensions: 462 (W) x 165 (H) x 448(D)mm 

Weight: 33.0kg

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PIONEER CT-600M (1979) | Pioneer Music Select System

From now on, you can bring out the best sound of Metal tape together with a variety of functions. Taking advantage of the high density recording capabilities of metal tape, enables recording and playback with a substantially wider dynamic range. The appeal of metal tape is that it can record high-density data. Its residual magnetic flux density and coercive force are twice as high (four times the energy product) as previous tapes. This has improved the maximum output level and input resistance characteristics in one go, enabling high-level recording with plenty of room. The CT-600M has a high maximum magnetic flux density for the recording and playback heads. It uses a newly developed sendust alloy that is stable and has little head saturation or distortion at high input. This results in a wide dynamic range in the high frequencies, with well-extended frequency characteristics from 20 to 19,000Hz (metal tape) and a highly transparent signal-to-noise ratio of 69dB (Dolby ON), resulting in a dynamic playback sound. The erase head also uses a special ferrite with a double gap structure that provides a high erasure rate. Please take note of the large vertical level meter. It is designed to cover a high level of +8dB, which is unthinkable for ordinary cassette decks. This allows the deck to be played back with a high quality sound, even when played back with metal tape. It also comes equipped with a peak indicator that shows the peak level in five steps (0, +2, +4, +6, +8dB). It has a multi-functional design that allows you to enjoy a variety of tape play, including an automatic cueing mechanism. When you want to skip the song you are listening to and move on to the next song, or when you want to listen to the intro again, the device automatically detects the beginning of the song and starts playing (PMS). It is equipped with just about every function imaginable, including program/memory play, LINE/MIC mixing cue and review, output level control, answering machine standby function, and a Dolby system using a newly developed IC. It uses a three-stage tape selector (CrO2 automatically switches in the STD position). 

Specifications:

Motor/High torque DC servo motor

Frequency response:

LH tape: 20-15,000Hz

chrome tape, ferri-Chrome tape: 20-17,000Hz

Metal tape: 20-19,000Hz

Wow%Flutter: 0.045% (WRMS)

External dimensions: 420 (W) x 143 (H) x 316 (D) mm 

Weight: 7.5kg

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