Special Features: dbx. Manufacturer: Akai. Dolby NR Type B: improved by 5dB at 1kHz, 10dB above 5kHz. Dolby NR Type C: improved by 15dB at 500Hz, 20dB at 1kHz to 10kHz. Tested in working condition, see photos for top scratch marks, I can also provide video of smooth ejection and close of tape deck.