Happy to inspire. Where are you in Oz?
On a related subject -
Here's a pic (link) of my listening position.
New Three-Way Horn Project - Speakers & Subwoofers - StereoNET Australia - Page 2
When I built my large Bill Fitzmaurice bass horn...I had thought about placing it in that space above the speakers, firing into the corner. I may still do that...but the sub is serving duties in the separate HT room.
So, I may design a new large bass horn, using a single driver, with the horn firing down towards the left corner.
A mate did a quick sim for me on a 6.2 meter ( 21 feet) horn with mouth size of 11,025cm (45cm deep by 245cm wide). The sim didn't look nice at all...very ragged.
But, there must be something 'fun' I can do to fill that void...and get a smooth response from 25Hz to 100...?
What about two tapped horns...on top of each other with horn openings oposing...?
Alternatively, a single(?) LF channel comprising, say, 8 x 12 or 15 inch woofers in a sealed panel/cabinet...?
However, I wouldn't mind ideas on drawing up a horn I could build.
Thoughts?
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A friend was earlier talking about dsp....I was shy of it...thought it too hard.
Now...I saw this -
ZKIT2 / Zen Triode SET multi channel tube amplifier kit
Suddenly...it all fits.
4 boards to run the top horns (SET)...good.
Then, a Krown power unit to run the bass horns....6 lines in all.
How do I then look after the output.....? Purpose built pre?
Thoughts?
Now...I saw this -
ZKIT2 / Zen Triode SET multi channel tube amplifier kit
Suddenly...it all fits.
4 boards to run the top horns (SET)...good.
Then, a Krown power unit to run the bass horns....6 lines in all.
How do I then look after the output.....? Purpose built pre?
Thoughts?
Ok thanks.
So, audio from, say, dac to dsp then to the 3 stereo amps?
How is dsp housed?
I'll also need to configure the amps so they have separate volume controls, plus one master?
So, audio from, say, dac to dsp then to the 3 stereo amps?
How is dsp housed?
I'll also need to configure the amps so they have separate volume controls, plus one master?
Hi Andrew
Why don't you talk to earle about setting up the xover values in the amps and gain can be set for each amp . You will need to measure each horn to find the xover points anyway .
This is how I'm setting my amps up .
Earle could build you some nice simple 2A3 SET amps for each channel ,very nice 😎.
Cheers
Why don't you talk to earle about setting up the xover values in the amps and gain can be set for each amp . You will need to measure each horn to find the xover points anyway .
This is how I'm setting my amps up .
Earle could build you some nice simple 2A3 SET amps for each channel ,very nice 😎.
Cheers
Thanks. I pretty sure I will get the three units by Earle...so Ill ask. Thanks.
Today, I tidied up edges....built baffles in glued up 25 nn ply...added rounded Tassie Oak edges....filled inside.....getting there.
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Yep, and you could put a preamp before the dsp.
If you are talking about minidsp, its a board so would need a case or just tuck it away somewhere. Mine just sits open behind my amps.
DSP allows gain adjustment to each channel but some people like to adjust level at the amps, especially if drivers have very different sensitivity. Your preamp can be the master, or the dac / source if it has adjustable gain.
Hi Andrew, what geometry does the square horn use ? is it a catenary flare ?
How critical is the horn geometry in this frequency range ? B&C has many models for 12" :
Model fs Re Qes Qms Vas Sd no Xmax Mms BL Le Fr
What made you choose the 12PE32 over some Nd drivers with equally low Qes ? Is it more musical ?
keep us posted on the progress ! br Marc
How critical is the horn geometry in this frequency range ? B&C has many models for 12" :
Model fs Re Qes Qms Vas Sd no Xmax Mms BL Le Fr
12PE32 51 5.8 0.19 7.6 101 522 6.8 2.8 37 19.1 1.2 -4000
12PLB76 50 5.3 0.24 5.2 75 522 3.8 5 51 18.6 1.2 -2000
12PS100 44 5.3 0.29 3.9 47 531 1.3 8 106 22.5 2 -1000
12TBX10042 5.1 0.27 6.9 37.5 521 1.15 9 119 25.5 1.6 -1500
12CL76 48 5.2 0.22 4.8 59 522 2.9 6 70 22.4 1.5 -3000
12NDL76 50 5.3 0.21 4.2 73 522 4.3 6.5 53 20.1 1.0 -2000
12NW76 40 5.3 0.17 3.7 76 522 2.8 8 77 25.5 12.5 -2000
12NW100 42 5.1 0.21 3.6 44 531 1.7 9 119 28 1.9 -1500
What made you choose the 12PE32 over some Nd drivers with equally low Qes ? Is it more musical ?
keep us posted on the progress ! br Marc
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Selenium mid drivers arrived yesterday...wow...never seen anything like it.
Check the size.
Also, the B&C drivers arrived.....again, for a 12-inch driver, so heavy and so well made. Fantastic.
Crites 3-way cross overs also arrived.
Just waiting on the Stereolabs horns...and to fit the mid bass horns into some nice outer cabinets.
So, we're getting there.
Chano, John Inlow (Inlow Sound) tested drivers and came up with the B&C PE32. I'd suggest it was due to high freq response, horn loading capability and musicality. He speaks very highly of it. It is supremely well built.
Regards.
Check the size.
Also, the B&C drivers arrived.....again, for a 12-inch driver, so heavy and so well made. Fantastic.
Crites 3-way cross overs also arrived.
Just waiting on the Stereolabs horns...and to fit the mid bass horns into some nice outer cabinets.
So, we're getting there.
Chano, John Inlow (Inlow Sound) tested drivers and came up with the B&C PE32. I'd suggest it was due to high freq response, horn loading capability and musicality. He speaks very highly of it. It is supremely well built.
Regards.
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very nice Andrew
Good to use Selenium, Economic and hard to bit sound quality
Bob is a basically good guy
can't wait to see the result
Good to use Selenium, Economic and hard to bit sound quality
Bob is a basically good guy
can't wait to see the result
Now running the horns in....playing straight without cross overs.....sounds great. John Inlow suggests one week needed for run in.
Tweeters landed today. Theyre the size of a standard unit net alone a tweeter.
Bob is great to work with for sure....
Tweeters landed today. Theyre the size of a standard unit net alone a tweeter.
Bob is great to work with for sure....
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