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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 February 2015, 01:34 AM   #111
anjump123 is offline anjump123  United Kingdom
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Join Date: Nov 2010
Location: London
I found some more info on the chip inside the hdmi switch.
http://www.epmi.com.tw/pro_d.php?pk=60
I've got one of the boxes off ebay. It seems to work getting audio out but when I play a SACD doesn't put anything out from the spdif or the analogue ports. But the info above seems to say the ic it will put out dsd.
Shame you are halfway round the world, I could have sent it to you.

Last edited by anjump123; 7th February 2015 at 01:37 AM.
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Old 8th February 2015, 12:34 PM   #112
Tranquility Bass is offline Tranquility Bass  Australia
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Join Date: Jun 2013
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Hi-end DSP based multi-channel integrated Preamp/Crossover/DAC project
Quote:
Originally Posted by anjump123 View Post
I found some more info on the chip inside the hdmi switch.
http://www.epmi.com.tw/pro_d.php?pk=60
I've got one of the boxes off ebay. It seems to work getting audio out but when I play a SACD doesn't put anything out from the spdif or the analogue ports. But the info above seems to say the ic it will put out dsd.
Shame you are halfway round the world, I could have sent it to you.
Thanks for that info. What I find interesting is the following spec

•On-chip HDCP Keys

I wonder if this makes it any easier to deal with the HDCP.

cheers
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Old 14th February 2015, 07:07 PM   #113
Tytte71 is offline Tytte71  Norway
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Hi. I know I'm nagging, but do you know when we can buy your complete DSP/preamp?
Cheers
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Old 15th February 2015, 01:45 AM   #114
Tranquility Bass is offline Tranquility Bass  Australia
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Hi-end DSP based multi-channel integrated Preamp/Crossover/DAC project
I'm aiming for the 2nd or 3rd quarter if everything goes to plan

cheers
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Old 15th February 2015, 05:15 PM   #115
Tytte71 is offline Tytte71  Norway
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Great! I will try my best to be patient
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Old 17th February 2015, 11:28 AM   #116
tb303 is offline tb303
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Join Date: Feb 2015
I'm currently using a miniDSP 4x10HD for my active 3ways.

If this could replace the miniDSP + better DACs + lower noise + FIR with useful amount of taps @96kHz (>8192) + no speaker killin power on/off POPs, then count me in!
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Old 17th February 2015, 01:57 PM   #117
tb303 is offline tb303
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After re-reading this thread with excitement, I think you have all my needs covered
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Originally Posted by tb303 View Post
If this could replace the miniDSP + better DACs + lower noise + FIR with useful amount of taps @96kHz (>8192) + no speaker killin power on/off POPs, then count me in!
Better DACs: check (eventhough I'm kinda fine with the 4x10 DACs)
Lower Noise: i'll just have faith
FIR with lots of taps: check

Please make sure the unit doesn't make any power on/off POP noises. Lot's of other gear (including my 4x10) is horrible in this regard. The 4x10 has already killed one of my tweeters.

So count me in!
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Old 18th February 2015, 03:18 AM   #118
cph2000 is offline cph2000  Denmark
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Awesome project.
Will this be a kit or fully assembled product?
What is the target price, will it be in the same range as the hypex solution?
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Old 18th February 2015, 11:43 AM   #119
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 tb303 View Post
After re-reading this thread with excitement, I think you have all my needs covered

Better DACs: check (eventhough I'm kinda fine with the 4x10 DACs)
Lower Noise: i'll just have faith
FIR with lots of taps: check

Please make sure the unit doesn't make any power on/off POP noises. Lot's of other gear (including my 4x10) is horrible in this regard. The 4x10 has already killed one of my tweeters.

So count me in!
Should be no clicks or pops even from a cold start

cheers
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Old 18th February 2015, 11:46 AM   #120
Tranquility Bass is offline Tranquility Bass  Australia
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Join Date: Jun 2013
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Hi-end DSP based multi-channel integrated Preamp/Crossover/DAC project
Quote:
Originally Posted by cph2000 View Post
Awesome project.
Will this be a kit or fully assembled product?
What is the target price, will it be in the same range as the hypex solution?
Will be available as assembled boards so you just buy the boards you need.

It will most likely be a higher priced solution than the hypex but the end price will depend on what additional boards you need, because not everyone needs analog input, or some may only need USB input only etc.

cheers
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