Hacking a Luxman Integrated


One cool and often under appreciated feature in Luxman integrateds is the "Separate" button. It disconnects the preamp from the amplifier, allowing for a number of approaches. Actually this is two features. One is the always active preamp output available on the back.

The second is the ability to feed the amp directly, bypassing everything in the preamp. Useful features:
  • Add room correction/EQ/active crossover in the middle.
  • Passively bi-amp (without using separate)
  • Feed a subwoofer (without using separate)
  • Use amp for home theater
  • Use ~ 0.047uF cap to add a high pass to your Luxman, letting you feed a sub for everything below 80 Hz.
  • Use ~ 1uF or higher to add some flavor to the sound. 
It has me thinking about using it with my sub for 2 channel again. :)


Best,

E
erik_squires
Post removed 
I deleted my last post because it is same as @erikt recommended.
Subwoofer output from the Denon to each of the LFE inputs on the subs, the Left line level input from each of the subwoofer connect to Luxman preouts (Sub 1: Luxman Left preout, Sub 2: Luxman Right preout).

Thanks for the help.

I'm now ready when the box comes through the door this week.

Cheers!

Adam

Hi all

Have any of you tried to biamp with a Lux integrated and a Lux power amp added via the pre out?

 

Currently own a 590AX, but could be a fun experiment to try biamping with m700 for example.

I haven't found any numbers for the gain in the 590.

 

Thanks

I haven't found any numbers for the gain in the 590.

Based on the specs of input sensitivity 550mV, gain = 29dB.