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.

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