Full Range Horn & system build

AV Cables

rajan-

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Feb 26, 2014
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its been a sometime that I have taken up the courage to build another one after my last system.

This will be a 2 channel system including horns, Amps and preamps.


My previous set up: incase anyone is interested.


Time change, location / home changed, life moved on.
If I had the option to move my previous setup I probably wouldn't have been attempting this.

So, the plan is:

15W Matched pair, Class A, Single Ended Amps: Done, completed, waiting for the speakers to be completed.
Can be used as Balanced mono or Single ended Bridged Mono.
Thank you, Nelson Pass / DIYAudiostore.

Bride of Zen Pre-amps: 75% completed. have to build Power supplies.


Future:
1) Integrate the Lyrita Le cleach horns from my previous build, and a super tweeter to augment this cabinets, and have a switchable platform for different genre of source material.
2) build Tube amp.

Speaker Cabinets: here we are. 3 full weekends, with measurements, saw, dremel and an angle grinder, wood glue and back breaking work...
For now, thanks to lockdowns in Melbourne, I cant do anything else to distract me.
 

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rajan-

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Joined
Feb 26, 2014
Messages
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Location
Bangalore
Rajan, nice build and would be waiting to see the outcome.

Is ACA capable of giving 15W ? I thought it was 10W or so. Can you clarify ? Some pics of amps and preamps would be nice.

Thanks
Balaji
The later versions with the 24V 5A power supply are capable of 8W/channel. balanced mono and bridged mono, 15W.
I may do a Torroid power supply in a separate chassis. Later.

Check out the different operation modes here:


Preamps:

Right now I am making unbalanced Pre-amps.
Circuit: Modified Nelson Pass "Bride Of Zen", Dual mono.
Not to get distracted from the cabinets, I have packed them away with all parts including torroid transformers.
Boards are packed, I just need to finish the Power supply and a volume POT.

Found a DIYer who is making fantastic Circuit boards for BOZ

along with those, I also got a modified Pass Aleph Power amp boards from him. Capable of minimum 60wrms, can do more when used with 45 Vdc rails.
Thats a future project, once I fully explore the Amp Camp Amp. but with the efficiency of the horn speaker, I would not need this kind of power, but who knows, I may get another speaker project later.


later will also do balanced pre-amps,
 

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rajan-

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The Bride of Zen pre-amp work progressed further over the weekend. the power supply completed.
Initial testing is very very good.
 

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yogibear

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Gareth from Australia, puts all his heart and mind in his custom boards. He has come a long way. His creations are top class.
 

rajan-

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Joined
Feb 26, 2014
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Location
Bangalore
Gareth from Australia, puts all his heart and mind in his custom boards. He has come a long way. His creations are top class.
Very friendly guy too. Always available on FB to discuss anything and clear all questions.
He has some insane builds going.
Where did you come across him ? DIYAudio ?

What I can tell you is that his boards are top quality, and worked without a single issue straight up.

the cascode BOZ preamp seems to have excellent gain and speed/transition. Electric guitar sounds very very good, even on an open driver sans any cabinet.

Cant wait for the cabinets to get completed, happened to hur my wrist riding mountain bike. cant lift the heavy cabinets for finishing them. so worked on electronics again.

Thinking of a chassis and remote controlled Alps Pot. All ideas are welcome.
 

yogibear

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An old friend I should say, from FB. Both of us started from same Musical Fidelity clone though I have still not been able to complete it, as the interest and attention diverted to tube amp builds.

Gareth has improvised and created some unique pieces. Best on the planet, I must admit.

Now, SS class A and hybrids will be next after I finish my current build.
 

sktaliyan

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Feb 22, 2009
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they stood up !!

Took them out to the deck.

started work on sanding down edges on the horn path. slow progress.
@rajan- Great DIY work. The cabinets look awesome. They are huge too. Seeing the size I am guessing that they must be around 5.5 ft-6ft. So paired with those monos n lovely preamp, I guess the listener would be fully qualified to given definition of what is audio-musical heaven!
 

rajan-

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Joined
Feb 26, 2014
Messages
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Points
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Location
Bangalore
@rajan- Great DIY work. The cabinets look awesome. They are huge too. Seeing the size I am guessing that they must be around 5.5 ft-6ft. So paired with those monos n lovely preamp, I guess the listener would be fully qualified to given definition of what is audio-musical heaven!
It is not that tall.

it is exactly 1M tall.

I plan to integrate a very fine Lecleach wood horn (pic attached) on top of it. that will add another ft and little in height.

add a isolation base and speaker pikes. all in all under 5ft.

about the sound quality, I know the amp and pre-amp sound good in initial shakedown, but never tried them on these horns, if it works out then -good, if not, will match the speakers with tube gear which is known to work very well.

but no, IMHO is that no one get qualified enough to define where musical heaven is.
each person make their reality, and then crave for more.
 

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