- D-1100M
- D-220
- D-2200M
- D-22s
- D-22s MkII
- D-230
- D-2330
- D-2335
- D-2360
- D-30s
- D-3300M
- D-33s
- D-3500
- D-35s
- D-40s
- D-410
- D-45s
- D-550
- D-5500
- D-5500M
- D-55s
- D-560
- D-580
- D-707
- D-707 II
- D-720
- D-7500
- D-75s
- D-777
- D-800
- D-850
- D-85s
- D-900
- D-909
- D-90s
- D-980
- D-E2
- D-E3
- D-E5
- D-E7
- D-E95
- D-X10
- D-X6
- DE-33
- DE-44
- DE-55
- DE-57
- DE-65
- DE-66
- DE-75 High-Com
- DE-99
- DR-V7
- TRQ-2000D
- TRQ-2040
D-550
- MSRP $220
- 1978
- Noise Reduction
- Dolby-B Noise Reduction
- Heads
- 2 Head Design
- Connectivity
- 2 Mono Microphone Inputs
- DIN Input/Output Connector
- RCA Input/Output Connectors
- Display
- 3-Digit Mechanical Counter
- Analog Needle Meters
- Transport
- Auto Shutoff
- Mechanical Tape Loading
- Mechanical Transport Control
- Tape
- Chrome Tape
- Normal Tape
- 3-Position Equalization Selector
- 3-Position Tape Selector
- Ferro-Chrome Tape
- Exterior
- Front Loading
- Orientation Left
- Preamplifier
- Individual Input Level Controls
- Output-Level Control
- Operation
- Line / Mic Input Select
