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Hi-end DSP based multi-channel integrated Preamp/Crossover/DAC project
Hi-end DSP based multi-channel integrated Preamp/Crossover/DAC project
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Old 7th January 2019, 07:32 AM   #1161
monotube2 is offline monotube2
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Hi-end DSP based multi-channel integrated Preamp/Crossover/DAC project
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Originally Posted by Tranquility Bass View Post
Yes I can add that for you.

regards
david
Perfect! I'm only waiting your pre-order...
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Old 7th January 2019, 07:01 PM   #1162
pinnocchio is offline pinnocchio  Canada
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I've always wanted to try DSP processing but know almost nothing about programming filters. I know the answer will most likely be "no" but will it be easy to create really good sounding setup for a newbie?

Thanks
Do
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Old 8th January 2019, 11:23 AM   #1163
Tranquility Bass is offline Tranquility Bass  Australia
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Hi-end DSP based multi-channel integrated Preamp/Crossover/DAC project
Quote:
Originally Posted by pinnocchio View Post
I've always wanted to try DSP processing but know almost nothing about programming filters. I know the answer will most likely be "no" but will it be easy to create really good sounding setup for a newbie?

Thanks
Do
It would take you about 10 minutes with the built in crossover block in Audioweaver or you could just download a template from my website which has it already done for you. You just need to change the slopes, frequencies and levels to match your own specs. If you need extra delays you can add those too

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Old 8th January 2019, 11:36 AM   #1164
orangeart is offline orangeart  United Kingdom
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Hello all, David has kindly said that I can draw your attention to my new product on this thread. I run KJF audio based in the the UK mainly selling speaker parts and kits to speaker building enthusiasts. I wanted to bring a flexible amp to the market using the Hypex NC***MP modules that was as cost effective as possible but also used all of the functionality these modules provide.

The amp started life as a DIY project for my own use in speaker development. As a professional speaker builder I needed something I could use flexibly with multiple channels allowing me to A/B different speakers or set up active XO etc and this amp to helps me do that.

From time to time customers ask me to include a plate amp in my speakers instead of just binding posts. I've long been a user of Hypex modules for my own projects, starting back with the UCD modules and latterly the NC500 modules, so their plate amps were the obvious choice, the latest Fusion models have been awesome!! Anyway, supplying those modules meant being an OEM and having access to Hypex' OEM only catalogue. The latest NC***MP modules looked too tempting to not do something for myself with so I set out designing a PCB to do house keeping and to house the connectors, here are the renders of Mk1

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

The modules themselves give feedback about the state of the power, temperature, clipping and DC detection as well as providing for mute and shutdown. I wanted the board to be able to take full advantage of that feed back and I wanted to be able to provide myself with a simple user interface and the ability to populate up to 8 channels with any of the boards in the range. I also wanted to be able to use balanced or single ended without any switches in the signal path. Eventually I decided that all of this could be accomplished using an AtMega 16u microprocessor and some custom software. I designed the board and my lovely brother in law wrote me some software. We managed to provide some extra functionality with a few spare pins too, so the end result had 12V triggers (properly isolated), start-up sequencing and intelligent cooling (isolated again) with some big *** near silent PC fans, Of course during normal operation I didn't want the fans to come on but 6 x 500 W modules can pull a LOT of power from the grid and even at such high efficiency I wanted to make sure any extra heat could be dissipated!!

As part of my speaker building business people are always asking what amps to use so I started thinking I should just make these available. Most of the n-core amps out there are either very expensive or lacking in functionality so I wanted to make something available that the DIYer would build themselves if they could buy the OEM modules (which you obviously can't) at the sort of prices that it would cost if you were able to build one for yourself. As I already have a direct sales website and customer base through Mark Audio drivers and flat pack speaker kits that part should be easy enough in the future. I decided to start a Kick-starter campaign to gauge initial interest, If I can get 10 sold by the end of the campaign, I know its a goer moving forward, if not then I'll forget about it. It'll allow me to buy a few bits in bulk and get the certifications, shipping boxes and inserts etc sorted out.

Its a bit cheeky but if any of you need a flexible (multi-channel N-core box at DIY sorts of prices for your Ultimate Preamp Plus projects then head over to the Kick-starter page to have a look at the video and specs etc.

MA-01 the affordable muliti-channel Hypex N-core Amplifier by Stefan Whatcott —Kickstarter

Stefan
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Old 8th January 2019, 01:05 PM   #1165
pos is offline pos  Europe
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Very sound design Stefan, congrats!
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Old 8th January 2019, 02:12 PM   #1166
orangeart is offline orangeart  United Kingdom
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Hey Pos, long time no speak, are you still hanging out over on the miniDSP forum? I've not been there for a long time. Mainly using my PC for XO duties these days while I save for a much more powerful solution like David has got here.

Thanks for your kind words, hopefully I can get the Kickstarter campaign across the line
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Last edited by orangeart; 8th January 2019 at 02:26 PM.
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Old 8th January 2019, 11:06 PM   #1167
Rajapruk is offline Rajapruk  Sweden
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Stefan, is your control board compatible with Hypex nc400 / SMPS600, do you know?
Controlling fans etc for that setup would be interesting to some, maybe.
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Old 8th January 2019, 11:57 PM   #1168
Hydrogen Alex is offline Hydrogen Alex  United Kingdom
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Default Option of "Custom set up service" for $50 extra

Quote:
Originally Posted by pinnocchio View Post
I've always wanted to try DSP processing but know almost nothing about programming filters. I know the answer will most likely be "no" but will it be easy to create really good sounding setup for a newbie?

Thanks
Do
David,
May I suggest you offer your customers an optional "Custom set up service" for approx $50?
You can add a "check list" onto your order page where the customer fills in details of his / her system, loudspeakers, room size, SPL and content (music only or part of home cinema / games) etc and you can install some custom settings based on the customers needs / system.

Also some default settings ie 24dB / 96dB slopes at common two and three way crossover points.
Maybe some basic Eq patterns ie bass enhanced or top end enhanced....
This would give some peace of mind to your customers and allow them instant comparisons ( flick between presets while music is playing) to give them a reference point for crossover / Eq sonic changes / benefits.

Cheers
Alex.
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Old 9th January 2019, 09:10 AM   #1169
orangeart is offline orangeart  United Kingdom
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Quote:
Originally Posted by Rajapruk View Post
Stefan, is your control board compatible with Hypex nc400 / SMPS600, do you know?
Controlling fans etc for that setup would be interesting to some, maybe.
I'll take a look, most likely doable although pin out is different. I'll report back but we should do this in my thread so as to not clog up David's with OT stuff.

Ncore modules in my new amp
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Old 9th January 2019, 12:54 PM   #1170
Tranquility Bass is offline Tranquility Bass  Australia
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Hi-end DSP based multi-channel integrated Preamp/Crossover/DAC project
Quote:
Originally Posted by Hydrogen Alex View Post
David,
May I suggest you offer your customers an optional "Custom set up service" for approx $50?
You can add a "check list" onto your order page where the customer fills in details of his / her system, loudspeakers, room size, SPL and content (music only or part of home cinema / games) etc and you can install some custom settings based on the customers needs / system.

Also some default settings ie 24dB / 96dB slopes at common two and three way crossover points.
Maybe some basic Eq patterns ie bass enhanced or top end enhanced....
This would give some peace of mind to your customers and allow them instant comparisons ( flick between presets while music is playing) to give them a reference point for crossover / Eq sonic changes / benefits.

Cheers
Alex.
We sort of offer this for free on our own forum. Forums

Also the dsp concepts forum is good for asking questions Forums | DSP Concepts

As more people use Audioweaver there will be more help on tap in much the same way as people who build stuff using the Arduino platform

Also we will keep expanding our library of Audioweaver examples and templates.

Regards
David
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