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Analog Crossover Network: LX Mini XO Kit

Analog Crossover Network: LX Mini XO Kit

  • 9900

This is the Analog Crossover Network: LX Mini XO KitTo purchase a complete kit or learn more about what the ACN can do for you visit the ACN Complete Kit page.

This LX Mini XO Kit contains the PCB, 16 matched JFETs, 16 matching resistors R13-20, R35-42, and all the other PC board parts mentioned in Nelson's article (Trim potentiometers, resistors and capacitors).


  • Printed Circuit Board (BIAMP12ERF-V1R0)
  • 16 matched N channel JFETs (Fairchild J113) with matching bias and tweaking resistors 
    • Q1-Q16
    • R13-R20, R35-R42
  • All other PC board parts listed in Nelson's article 
    • P1-P4
    • R1-R52
    • C1-C29

Not included

  • ACN Chassis
  • Any parts that connect to the chassis
  • Power supply


  • Dimensions: 5inch x 5inch / 12.5 cm x 12.5 cm


Customer Reviews

Based on 23 reviews
Another home-run for Mr. Pass

Kit was well designed and high quality. No issues with it. Replaced a Mini DSP HD for the Active Crossover Network on my LX Mini build and it made a noticeable improvement in the sound. I also put this in the same enclosure with an adjustable 6-24 ACN from DIY to use as an output to a subwoofer for the system. That also worked great. I'm an Extremely Satisfied customer AGAIN.

Willard E.
First crossover..sounds great.

For me the first active crossover that i have made.
The sound is on my diy open baffles with AER 8inch and 15inch LII drivers.
It was easy to build the kit complete.
Only ambiguity with regard to the diagram was the deviating resistance values ​​supplied with the fets
otherwise highly recommended.

Lx-mini ASP

Great kit. Easy to put together. Works great with my vinyl player.

Dirk H.
ACN - kit - very nice!

The ACN-basic-kit is a very good package! Super PCB, well matched JFets.
I want to use it as an active 2-way-crossover for my speaker build (not for
the LXmini). All resistors/caps will be changed in the Sallen-Key-filters.
A more universal ACN-Kit (as mentioned from Nelson Pass) could be very

The new DIY-audio-shop is doing a fantastic job! Very fast delivery from the USA
to Germany (below 12 days - including customs).
Well packed and always good infos by email.
Thanks to DIYaudio-team!
Dirk Hoerrmann, Germany

Arrived fast in Canada

I picked the DHL Express option. As expected no additional duties at the door but it arrived much faster than expected (2-3 days). Definitely recommend this shipping option if outside US. Well packaged as expected. Looking forward to stuff this neat board. Thanks!

LXmini Asp

Very great kits, given a better sounding compared to the LXmini dsp

Chuck R.
DIY response

It all looks nice but, still waiting on chassis/box to come on stock where I can build it

Robin H.
LXMini crossover kit

Great kit! Assembled it in a few hours, without problems. Worked on first attempt and plays beautifully.

I never managed to get rid of some noise issues with my minidsp solution. Finally I have a silent background. Also the speakers still sound great! Maybe slightly "different", but not sure how to describe it. Could be the lack of noise :) Anyhow, this kit will stay in the system, without any doubt.

Thanks for the great job to everyone involved!

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