Marantz SD-57
Specification
| Model Name | SD-57 |
| Number of heads | 2 |
| Frequency Range (Normal) | 30 Hz to 18 kHz |
| Frequency Range (Cr) | 30 Hz to 19 kHz |
| Frequency Range (Metal) | 30 Hz to 20 kHz |
| SNR Dolby S | 76 dB |
| SNR Dolby C | 74 dB |
| SNR Dolby B | 65 dB |
| SNR Dolby Off | 57 dB |
| Wow and flutter | 0.055 % |
| Dimensions* | 439 mm × 134 mm × 318 mm |
| Mass | 4.4 kg |
* Maximum dimensions including all protrusions.