The Megaliths open baffle line array speakers

HAL · « **Reply #80 on:** 6 Jun 2016, 01:17 am »

Hauled the bottle of lead shot down to the Lab to fill the copper pipes for counterweight.

Then will be time to hammer the end shut, bend the angle and drill the mounting holes.

HAL · « **Reply #81 on:** 6 Jun 2016, 09:33 pm »

The baffle stabilizer and counterweight with the lead shot added and other end closed.

Next is drilling the mounting holes and connecting them to the baffles.

HAL · « **Reply #82 on:** 6 Jun 2016, 10:59 pm »

Just to make sure I state this, there will be no passive crossover design used for these speakers.

There is no way to select passive components to the tolerances needed and the time delays would require miles of wire in the delay circuits.

People can keep chasing things like Duelund caps and Jantzen foil inductors if they like, I am going the 21st century route with the dspMusik. Best sounding crossover I ever heard and easily beats passive designs with it's capabilities for things like 6 pole filter topologies and time delays.

Have fun with the comments, just play nice.

HAL · « **Reply #83 on:** 7 Jun 2016, 02:11 am »

Baffles completed and standing.

Next to wire up the Neo10 drivers and see how they measure.

HAL · « **Reply #84 on:** 8 Jun 2016, 10:52 am »

Speaker cables labeled and started connecting them to the Neo10's.

Next connect to the amps and try some measurements to see how to adjust the crossover for sub to planar level matching. Then try Room EQ for overall correction.

HAL · « **Reply #85 on:** 8 Jun 2016, 08:48 pm »

Installed 200' of 14awg speaker cable today on the planars.

Now time to check resistances and then wire the drivers to the amp modules. Carefully check to not let out any magic smoke.

HAL · « **Reply #86 on:** 9 Jun 2016, 02:16 am »

Wiring to the amp modules is ongoing. Will complete wiring to the amps tomorrow.

Baffles and servo subs setup for trials.

HAL · « **Reply #87 on:** 9 Jun 2016, 07:16 pm »

All 16 amp modules are now wired to the Neo10 drivers.

Wiring layout designed to catch those pesky mp3 listeners and hold them down while listening to HiRez music.

Next is to connect the balanced XLR cables from the dspMusik to amp modules and start the testing.

S Clark · « **Reply #88 on:** 9 Jun 2016, 09:24 pm »

I've got to get my wife to see this pic of your floor. Maybe she won't think my stuff is so bad.... well, I can always hope.

aldcoll · « **Reply #89 on:** 9 Jun 2016, 10:09 pm »

Really Hall how many pizza's did you buy to get to this stage

Avoosl · « **Reply #90 on:** 9 Jun 2016, 11:14 pm »

If you guys only knew! He actually spiffed it up a bit and cleared some space for a trial
tomorrow. It's all a work in progress. WAF=0, but who cares? Genius at work.

Guy 13 · « **Reply #91 on:** 10 Jun 2016, 12:41 am »

Captain's mess...
Hopefully, captain HAL is in control,
despite the (Temporarely) mess....

Guy 13

stu · « **Reply #92 on:** 10 Jun 2016, 01:45 am »

What mess? Looks like a normal man cave to me.

HAL · « **Reply #93 on:** 10 Jun 2016, 02:24 am »

What is this talk of temporary mess. This is clean.

It is a Lab/Man Cave. No WAF allowed. Listen and drink beer. The wife has upstairs.

HAL · « **Reply #94 on:** 10 Jun 2016, 03:29 am »

The final XLR balanced connections from dspMusik to amp modules are complete.

Tomorrow is power up, measurements and Room EQ.

Guy 13 · « **Reply #95 on:** 10 Jun 2016, 03:55 am »

Why tomorrow ?

Why not right now ?

We are impatient...
O.K. get a good night sleep
and tomorrow we will be waiting for the results of your test.
Thaks a lot for that interesting topic.

Guy 13

HAL · « **Reply #96 on:** 10 Jun 2016, 12:12 pm »

A basic problem is that my new power conditioning setup with enough AC outlets and AC cables to power up the system have not arrived yet. I have 4 AC sockets that are within 2 meters of the 9 IEC sockets for the amps and dspMusik that run the system.

Probably will go get some AC extension cords to run everything until they get here. Will be awhile until the units arrive.

Guy 13 · « **Reply #97 on:** 10 Jun 2016, 01:04 pm »

More waiting...

HAL · « **Reply #98 on:** 10 Jun 2016, 01:20 pm »

Well I did start having ideas about this in 1979. Took the last 6 years to get to this point. Pretty close now.

HAL · « **Reply #99 on:** 10 Jun 2016, 05:04 pm »

Nothing is thwarting todays startup of the speakers.

Trip to Lowes. 100' power cable on sale and all the Hubble connectors to build 8 - 10' extension cords.

The audio mad scientist is not letting the lack of AC power stop this!