I built an ACN for SLOB speakers using two P089ZB filter kits and a pair of RK27 breakout PCB's.
Beautiful PCB. Jfets/resistors included. Remainder of components easy to come by….waiting to use on SLOB. Thanks DIY store.
The crossover is built. No problem at all. Sound seems perfect with more informations than DSP. More spacial sound. Trebble are smoother and detailed.
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.
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.
Great kit. Easy to put together. Works great with my vinyl player.
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
interesting.
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
Excellent board and parts. Service was great and not exactly sure yet how I will modify them to use with a full range driver and the sub from the LX521. still working to modify the values.
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!
Very great kits, given a better sounding compared to the LXmini dsp
It all looks nice but, still waiting on chassis/box to come on stock where I can build it
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!
Went together well.
Worked first time.
Sounds great.
very nice improvement over the dsp. I now learned more on how to get other crossover and basslift values. I will order another one shortly:)
very nice layout which allows for customization - in my case to build a crossover to go with a Pass SLOB open baffle speaker with a full range driver augmented with a slot-loaded woofer. The crossover allows for a bi-amp arrangement with level and crossover slope matching, as well as tailored EQ for each driver. I am combining this board with a NuTube board for gain. Should make a great combo.
Finaly I received the parts, the German DHL did a bad job and resend the items to USA where they get lost. But diyaudiostore shipped the parts for free, they charged only the shipping. Thanks a lot! Great stuff, now I am fiddling to find the best crossover points for my Speakers.
I used this crossover to replace an op-amp based crossover board and an old SAE parametric equalizer which I had used to feed a speaker system based on vintage JBL pro sound speaker components. The parametric equalizer had been used to boost the low bass a bit and to remove a 2 kHz peak.
Using LTspice, I was able to redesign the notch filter so that it was narrower and not as deep and centred at 2 kHz. No modifications were required to the circuit board, although jumpers were added and components changed. LTspice was also handy in recalculating the crossover component values to get a 800 Hz crossover frequency and to modify the bass equalization. Frequency response tests after building confirmed that the design was accurate.
This crossover does the job with minimal circuitry and can be modified to suit users' needs, which was what I was looking for. So, it can work for speakers other than the LX Mini. Pretty hard to beat for the price, too.
Works as advertised for my LXmini kit from magicLX521. Shipping was fast and parcel arrived (with tax and customs fees added) in Germany. Even in its current state with a cardbox enclosure produces no audible noise. Note that the chepest ebay power supplies from China are a bit noisy but with a brand name power supply (the triad recommended is not available in Europe) it is quiet.
Great kit, well put together. A must buy while it last. Very recommended...
As advertised...really cool that Mr. Pass would do this for the LX Mini crowd (and Mr. Linkwitz, RIP). Fun project, everything checked out and worked on first go, and sounds great. I may be hooked. Thinking about building another before golf season returns so that I can try with XLR, even if it's not particularly cost effective. Anyone need a miniDSP?
As I can read from the other reviewers DiyAudio Store use to do a good job, and did so this time as well. Very nice pcb (but why do the layout force us to use electrolytic capacitors between the stages??? I think I will put PP caps outside the board instead, at least in the hf section) and fast delivery. Thanks.
Nelson Pass kits from the DIY Audio Store are awesome.
I received my 2 kits in a perfect packing... impressed!
Thanks DIYAudiostore
Great kit from Nelson. Haven't yet had the opportunity.to.build it yet, but it looks straight forward.enough. i think it's wize to check all of resistors with a meter prior to installing them as Nelson suggests in his instructions
Looking forward to trying this put with my bespoke 4 channel power amp, but this will be sometime in the new year now
ordered 2 boards for a balanced setup. While I messed up the order the guys at DIYAudioStore sorted it out and soon had my boards. Not yet started construction but looks like a well designed and produced board - from Nelson I would expect nothing less.
Compact quality pcb and parts. Havent had time to play with it yet.