Author: admin

New Cluster Setup

Since I have been playing with cheap servers ( low cost ) but Enterprise quality. I decided to start playing more and more with ESXI 6.0. playing with all the paid features and seeing what the systems can actually do I started having more and more fun, plus learning a-lot. I don’t get to play with this type of stuff at work, just fix the hardware.  So i grabbed a few servers from a local recycling company that refurbishes them & warranty’s them.


I traded in the R710 for two machines.  A R210 & R610. My goal is to buy another R610 & a R310, this will allow me to build a cluster and move LIVE virtual machines from one machine to the other with out disrupting service. ITS A HOME LAB but it’s learning and having fun doing it, hey ya never know maybe this will come in handy later in the future..


So the goal is :


2 R610’s with 64gigs ram in each and DUAL 6core xeons

R310 with 4 x 2tb drives & 10gigabit SFP+ link for each server

R210 a Vcenter controller.


I also just started playing with Veeam, DAMN this software is free and freaking Awesome !!  I installed it on a Dedicated Spare Optiplex 790 with 8 gigs ram and a 1tb drive running windows 7 pro, this allows me to RDP to the box and start manual virtual machine backups. I’ve actually backed up all my vms off the R710 and pushed them back to the new R610 with out any issues. HUGE smiled that day!!


Learning Vmware.

Usually my pick would be Windows R2 with hyper-v. But I decided to try Vmware, Picked up a few Dell pieces of equipment & a Cisco 3750G POE switch.

Dell R710 with 4 300gig 10k sas drives 32 gigs ram & dual quad core cpus, installed a pair of sata 750gig WD black 2.5″ drives for a local storage for isos and small images.

The Dell R210 is for the firewall Running Sophos Xg, actually really cool firewall.

My Dayton 6′ Rs towers….

I’ve been building lots of speakers these last few years, never really tried any of the dayton audio drivers. Did tons of reading and research “even” listened to a friends pair of speakers using a 8″ dayton. Then wham I was addicted.

So I did a big order.

8 x RS180-8 7″ Woofer’s
4 x RS100-8 4″ Mid-Woofers
2 x RS28A-4 1″ Dome tweeter.

To be safe, I also ordered 2 x RS125-8 5″ mid woofers, just in case the 4″ can’t keep up or go along with the rest of the design.

I started off with some google late night sketchup work, and created this.

I can’t lie though, this photo did help me want to build something like it.

Then it was off to the cabinet shop to buy some 3/4″ MDF, they even cut it for me, into manageable pices, so i can build this test box at home.

Next day i attacked the garage and started cutting.

Drivers arrived a few weeks later.

All the drivers lined up, not sure if i’m going with 5″ mid bass drivers OR 4″ i have the 4″ ones mounted for now, but can swap them out for the 5″.

More late night building,

Mounted all the drivers,

Then carried this big heavy 6′ tall beast to my room. Not sure why, I have to drag it back down stairs this week to go measure and get driver data..

Differential Preamplifier 8×2. Project Balanced Pre-Amplifier

Another **UPDATE** July 28th

Boards are all populated, not tested yet just waiting for a ribbon cable to show up that connects the selector board to the main board.


Bench all setup to start SMD soldering.

Some parts soldered on the first day, then I took a break.

Input selector board.

All done !

**UPDATE** July 25th

Parts are here !! WOOT !!

I stumbled app-on a really nice & simple pre-amlifier. Contacted the maker ( In Canada ) and did some chatting and research, came to the conclusion and ordered the boards. It’s a fully SMD Balanced Pre-amp, so i get to spend a few hours placing one part at a time soldering one part at a time on the boards.

So far I just have the new shiny boards, parts are on their way. Reading over the very well laid out manual, is going to make this build fun and enjoyable. After I have it all built & tested, I’ll be researching around for a custom chassis or draw up and get my own made.

I have also choose not to use the PCB mounted XLR in & out connectors. Instead I’m going to be buying chassis mountable Neutrik ones..

Few pictures ( from their site ) and a direct link to the product.

Raw PCB & selector PCB

Fully assembled kit, from the company, they sell it two versions. BUILT & Un-built.

Product link.

Differential Preamp 8×2

Mini Dayton’s


This project started from surfing youtube. I found a video of a small bookshelf that had huge potential. I already had a pair of Ribbon tweeters sitting on my shelf for the last 10 years so I thought HEY 80$ for a small pair of woofers to build a pair book shelf speakers. SURE !! Why not !! the nice thing about dayton drivers is they show you ALL the data on their site & you can download the data file to use in xsim to design crossover etc etc…

Original youtube link, << Click me !

I bought a pair of Dayton RS100-P-8 thats RS100 P= paper 8 = 8ohm.

Link to Driver !

Link to PDF File
I already had the Aurum Cantus G2Si ribbon tweeters.

Link to PDF data & their site.

Time for some images and drawings.

Cabinet Drawing done in Google Sketchup.

Dayton Rs100-p-8

G2Si & RS100

Orange Measurements..

Have been doing some tweaking on the Orange Bookshelf speakers.

Using the Mini DSP 2 x 4 Balanced version it works pretty well, and much better sounding. ( will post pictures of the unit )

Changing crossover points and eq values is simple and instant.

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From Orange Book Shelf

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D-I-Y Bookshelf HI-FI Spekers

I’ve been working on so many speaker projects it’s not even funny. Ryan from and i have been friends and didn’t even know it since days.. He and i recently have been working on a few of “my” projects. I asked him to make me a flat pack with his CNC router for my last few projects.

My latest Project is a sealed Bookshelf speaker using a 7″ LDW7 woofer from ( awesome driver ) & a fountek NEO 2.0 Ribbon tweeter.

I will post more measurement data and crossover design later on when i tackle that part. For now im using a Minidsp 2×4 balanced version and 4 class a amplifiers to run them..

These orange boxes are just test boxes till I get walnut wood.

So pictures ?

7″ driver


CNC testing for accurate “tight fit ”

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Box done.

First coat & primer on.

Five coats later, could put more effort into making the finish way nicer but not really needed.

Day later after the paint cured and drivers in.

Am I addicted to audio & speakers 🙂 YUP !!!

Thanks again to ryan @ for the CNC MDF pack …