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Here is some Technics history:
Technics 1 (year 1965)
The first model to feature the Technics brand, Technics 1 was a sealed, two-way speaker system. While compact, the system attained bass comparable to standard floor-standing speaker systems.
Technics 10A (year 1966)
The 10A was the first stereo preamplifier in the Technics series. Comprising an amplification section with two-stage NF circuitry, the amplifier achieved lower distortion and great dynamic range.
Technics 20A (year 1966)
The Technics 20A was the first power amplifier in the Technics brand. This high-power amplifier used twenty 50HB26 pentode tubes and OTL circuitry, which was exceptional for the time.
Technics 30A (year 1968)
As an improvement over the Technics 10A, the Technics 30A achieved unprecedented low distortion and an improved signal-to-noise ratio by using a unique SEPP method. Furthermore, the 30A boasted an entirely new, innovative RIAA circuit design.
Technics 50A (year 1969)
The Technics 50A was a transistor integrated amplifier that culminated from the tube amplifier development technology of Technics. Its newly adopted OCL method later became the mainstream for transistor amplifiers of many companies.
SP-10 (year 1970)
The SP-10 was the world's first direct-drive turntable and created a new era in audio. It eliminated the vibration and rotation irregularity caused by the previous belt-drive method, and was delivered to broadcast stations even though it was designed as a consumer product. It also greatly influenced other audio equipment.
SL-1200 (year 1972)
The SL-1200 was the first in a series of direct-drive turntables with an established reputation for stable rotation. The series remained in production for nearly 40 years and became a staple of the DJ culture.
SU-10000 (year 1972)
The SU-10000 was the pinnacle of preamplifiers. With the development of the first three-stage operation amplification in the equalizer stage, the SU-10000 was an industry-leading presence among high-end amplifier separates in Japan.
SE-10000 (year 1972)
The SE-10000 was the world's first power amplifier using a high-capacity constant-voltage power supply. Its VU meters allowed direct readings of accurate peak values and later became standard.
SB-1000 (year 1973)
The SB-1000 was the first three-way bookshelf speaker system in Japan that used a dome unit. The speaker system gained popularity due to its excellent cost performance.
Technics 7 (SB-7000) (year 1975)
This speaker system demonstrated the validity of Technics' unique linear phase theory. The system later influenced many speakers around the world.
SE-A1 (year 1977)
The SE-A1 was a superlative power amplifier. Each channel had four power supplies, for a total of eight power supplies in an independent left and right construction. This completely DC Class-A+ amplifier even eliminated capacitors from the feedback circuitry. The output was 350 + 350 W.
SU-A2 (year 1977)
The SU-A2 was a preamplifier with Class-A operation in all stages. The circuitry was completely DC. Achieving a signal-to-noise ratio of 95 dB (2.5 mV) for the phono input and equipped with UFE*, this high-sound-quality, multifunctional amplifier allowed every possible control. * UFE: Universal Frequency EQ
SB-10000 (year 1977)
The SB-10000 was the ultimate linear phase, bass-reflex, three-way speaker system using horn-type units for the medium- and high-frequency ranges. In the development of this system, Japan-first and world-first advanced technology was unsparingly introduced.
SL-10 (year 1979)
The SL-10 was a fully-automated turntable loaded with Technics' turntable technology in the size of an LP record jacket (31.5 cm). Its design aspects were also highly acclaimed, and this turntable was acquired by the Museum of Modern Art in New York.
The SL-P10 was Technics' first CD player. The dedicated circuitry consisted almost entirely of newly developed LSIs and ICs. Direct drive was achieved using a DD motor.
SL-Z1000 (year 1989)
The SL-Z1000 was Technics' first separate CD player. To achieve highly faithful sound reproduction, the CD player used a construction with thorough vibration control.
SH-X1000 ( year 1989)
The SH-X1000 was a digital processor with 1-bit MASH DA conversion in a three-chip configuration. The processor performed distortion-free reproduction of minute signals superimposed on low-level or large signals.
SU-C7000 (year 1992)
The SU-C7000 was a preamplifier that used a battery-driven power supply. With the effect of magnetic flux leakage eliminated by completely separating the AC power supply and the signal circuitry, sound quality was improved with thoroughly purified physical characteristics.