CHAPTER 4
Table 4.4: M2D and 650-P (650-P set to pin 2 positive) frequency response results with LD-1A, LD-2 and LD-3 (160 Hz filter)
Lo-Cut | ø Reverse | Result |
| Switch | |
Off | Off | Flat response (small rise on 70 Hz -160 |
| | Hz area), -6 dB sub gain recommended* |
| | |
Engaged | Engaged | Very flat response, -6 dB sub gain |
| | recommended* |
| | |
*The 650-P subwoofer is +6 dB more sensitive than the M2D and M2D-Sub loudpspeakers.
In addition to its 160 Hz high-pass filter, the LD-3 line driver provides additional filtering capabilities (Table 4.5) to help you further fine-tune an M2D and 650-P system.
Table 4.5: M2D and 650-P (650-P set to pin 2 positive) frequency response results with the LD-3 (using other filters)
HPF | LPF | ø Reverse | Result |
| | Switch | |
Off | 55 | Off | Flat response, -6 dB sub gain |
| | | recommended* |
| | | |
80 | 80 | Engaged | Very flat response, -6 dB sub gain |
| | | recommended* |
| | | |
160 | OFF | Engaged | Very flat response, -6 dB sub gain |
| | | recommended* |
| | | |
*The 650-P subwoofer is +6 dB more sensitive than the M2D and M2D-Sub loudpspeakers.