Yamaha - KX-W321 Dual Auto-Reverse Compact Audio-cassette deck

Yamaha KX-W321 dual stereo cassette deck, manufactured by Yamaha Corporation (circa 1998–2001). Technically in 100% good working condition (playback on both decks, recording on Deck B, rewind and loop functions operate properly); visually in neat condition with light signs of use appropriate to age.
For analog cassette enthusiasts, the KX-W321 offers an extremely reliable, modern dual-deck configuration. Deck A is specifically configured for playback, while Deck B serves as recording and playback deck. A notably practical advantage of this model is its equipment with Dolby B/C and Dolby HX Pro (Dynamic Headroom Extension). Whereas standard dual decks often lose high-frequency performance on dynamic recordings, the HX Pro system continuously adjusts the bias current, resulting in noticeably less saturation at higher frequencies and a perceptibly tighter detailing.
Sonically, the player delivers a clear, dynamic, and stable playback. The deck features microprocessor-controlled full-logic loop mechanisms, automatic tape-type recognition (Normal, Chrome, Metal), and features such as high-speed dubbing to transfer tapes at double speed. Additionally, the device is equipped with an Auto Rec Mute function and a clear digital display with multiple peak meters.
Specifications
Type: 4-track, 2-channel dual compact cassette deck
Model: Yamaha KX-W321
Color: Black / Titanium gray (depending on version)
Year: circa 1998–2001
Heads Deck A: 1 x playback head
Heads Deck B: 1 x recording/playback head, 1 x bias head
Motor system: 2 x DC servo motor (1 motor per tape mechanism)
Tape speed: 4.75 cm/s (Normal), 9.5 cm/s (high-speed dubbing)
Tape types: Type I (Normal), Type II (CrO2 / High), Type IV (Metal)
Frequency response Type I (Normal): 20 Hz – 16,000 Hz (±3 dB)
Frequency response Type II (CrO2): 20 Hz – 17,000 Hz (±3 dB)
Frequency response Type IV (Metal): 20 Hz – 19,000 Hz (±3 dB)
Signal-to-noise ratio: 58 dB (without noise reduction), 66 dB (Dolby B), 74 dB (Dolby C)
Wow & Flutter: 0.08% (WRMS) / 0.15% (DIN)
Noise reduction and headroom: Dolby B, Dolby C and Dolby HX Pro
Functions: High-Speed Dubbing, Auto Tape Type Selector, Auto Rec Mute, Full Logic Control, FL-display
Rear connections: Line In (RCA L/R), Line Out (RCA L/R)
Front connections: 6.3 mm headphone jack
Power supply: 230 V AC, 50 Hz
Power consumption: approximately 14 Watts
Dimensions (W x H x D): 43.5 x 12.6 x 27.8 cm
Weight: approximately 4.2 kg
Manufacturer: Yamaha Corporation (Hamamatsu, Japan)