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Sansui SANSUI TU 9900

SANSUI TU 9900

Tuner

Immediate availability

Code: 56831383

All our products are covered by Italian warranty.

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Pre owned. In fair condition. Shows signs of wear. Without original packaging.

 

The Sansui TU-9900 tuner is designed to perfectly complement the AU-9900 and AU-11000 amplifiers, sharing their construction philosophy and high performance standards. It provides stable and precise reception under all signal conditions, combining excellent sensitivity with audiophile-level sound quality. Every component and circuit is carefully selected and optimized to ensure both sonic purity and reliable tuning, balancing technical performance with musicality.

The front-end section features an FM5 series linear varicap, three low-noise dual-gate MOS FETs, and a dedicated transistor, ensuring high sensitivity and low interference even in areas with weak or overlapping signals. An antenna attenuator switch allows adjustment to different signal strengths, maintaining stable reception in both distant transmission areas and strong-field environments.

The IF section includes a band-switching system that emphasizes either sound quality or selectivity as needed. For wideband signals, it uses a two-stage, six-pole block filter with flat group delay characteristics, preserving natural sound depth. For narrowband reception, a four-pole ceramic filter provides excellent adjacent channel interference rejection, ensuring clear playback even under challenging radio conditions.

The ultra-wide-band ratio detection circuit and MPX section use differential demodulation with a phase-locked loop (PLL) for excellent phase characteristics, providing linearity across a wide bandwidth and extremely low distortion comparable to a high-end pre/main amplifier.

The TU-9900 also features an automatic noise canceller using a photo-coupler: when the input signal is weak, it automatically adjusts the stereo balance to reduce noise, improving practical listening performance. The AM section uses a double-tuned circuit and a Yaman-type two-element, two-coil ceramic filter, enhancing sensitivity, selectivity, and tonal accuracy.

Each stage is powered by a stabilized ±2 power supply to ensure stable operation and consistent sound reproduction. A built-in test oscillator allows precise recording level adjustment for connected decks, making the TU-9900 both a technically advanced and musically satisfying instrument.

Technical Specifications TU-9900:

  • Type: Mono/Stereo Tuner
  • Tuning Bands: FM; MW
  • Tuning Scale: Analogue
  • FM Tuning Range: 88–108 MHz
  • MW Tuning Range: 530–1600 kHz
  • Sensitivity: 1.5 µV (FM)
  • Signal-to-Noise Ratio: 76 dB (FM); 55 dB (MW)
  • Distortion: 1.0% (FM)
  • Selectivity: 90 dB (FM); 70 dB (MW)
  • Frequency Response: 30 Hz–15 kHz (FM)
  • Output: 1000 mV
  • Dimensions: 460 × 160 × 310 mm
  • Weight: 9.6 kg

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