Time for some 8in servo subs to go with the MG10/QR's

[HAL]

Nick,
These are basically the same as the original HX300 servo amps.  The circuits are moded to work with the 8in OB subs instead of the 12in OB subs.

This time Danny redesigned the 8in sub woofer to be slightly higher impedance so the amp could drive 4x8in instead of just 3. 

The other difference is extending the LF response to 30Hz and using the dspNexus 2x8 to control the low frequency extension.  It was around 40Hz before.  Will have to wait until the servo drivers are mounted in the H-Frames to adjust the response so they do not bottom.   

[Nick B]

Nick,
These are basically the same as the original HX300 servo amps.  The circuits are moded to work with the 8in OB subs instead of the 12in OB subs.

This time Danny redesigned the 8in sub woofer to be slightly higher impedance so the amp could drive 4x8in instead of just 3. 

The other difference is extending the LF response to 30Hz and using the dspNexus 2x8 to control the low frequency extension.  It was around 40Hz before.  Will have to wait until the servo drivers are mounted in the H-Frames to adjust the response so they do not bottom.

Thanks, Rich.

Great progress for you so far. This Wednesday, I’m having honeycomb blinds installed behind my system. Have had an uncovered window there since I moved in last November. That’s the first step to integrate the subs. Will be using REW with the mic for testing that you suggested.

Nick

[HAL]

Nick,
Glad you are making progess on the sub setup soon.

Keep us posted on your REW measurements.  Always interesting to see different room responses.

[HAL]

The Magnepan MG10/QR's with two 2x12 OB modular H-Frame servo subs are now with another nephew for his new system.

When he has all the other gear needed, will order him a dspNexus 2/8 and program it for the system.

Now on to new audio projects...

 

[Nick B]

The Magnepan MG10/QR's with two 2x12 OB modular H-Frame servo subs are now with another nephew for his new system.

When he has all the other gear needed, will order him a dspNexus 2/8 and program it for the system.

Now on to new audio projects...

Rich,
What other gear does he need or need to upgrade?

[HAL]

Nick,

He will need two FOSI ZA-3 stereo amps to biamp the MG10/QR's, two A370 servo amps, two more SW-12-16FR sub drivers and a dspNexus 2/8 and the servo sub wiring.

He has his turntable with the dspNexus 2/8 ADC and phono setting and his Bluetooth phone as the digital input.

[Nick B]

Nick,

He will need two FOSI ZA-3 stereo amps to biamp the MG10/QR's, two A370 servo amps, two more SW-12-16FR sub drivers and a dspNexus 2/8 and the servo sub wiring.

He has his turntable with the dspNexus 2/8 ADC and phono setting and his Bluetooth phone as the digital input.

Well, that's quite manageable and he's fortunate to have your help. Pls keep us posted on his progress, Rich