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Old 13th March 2013, 02:48 PM   #441
ds23man is offline ds23man  Netherlands
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Join Date: Oct 2006
The list I posted december last year:

Dac: AK4396
Dac current source: NE5532
Balanced output buffers: OPA1632
DSP: TAS3108
USB audio: PCM2704C
ADC: PCM4202
SRC: SRC4382
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Old 13th March 2013, 02:59 PM   #442
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Quote:
Originally Posted by Julf View Post
all in a titanium or carbon fibre rack
You mean myrtlewood isn't in any more?
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Old 26th March 2013, 09:47 PM   #443
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Location: Guanajuato, Mexico
How about buying a used Behringer DCX2496 & modding it with a better DAC & better OPA ?
Sounds like it would be a heck of a lot cheaper.
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Old 17th April 2013, 02:55 PM   #444
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Location: Leiden, NL
About to pull the trigger on one of these for room correction, and replace a NAD M51. I will look in a year or two at adding 4 more nCores and running my speakers (ATC SCM35s) fully active.

Are there any reviews or comparisons against more common DACs that could push me over the edge?
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Old 17th April 2013, 03:10 PM   #445
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Quote:
Originally Posted by mcai7et2 View Post
About to pull the trigger on one of these for room correction, and replace a NAD M51. I will look in a year or two at adding 4 more nCores and running my speakers (ATC SCM35s) fully active.

Are there any reviews or comparisons against more common DACs that could push me over the edge?
Ever heard of the WAF Audio Najda ?
DSP Xover project (part 2)

Seems to be the best value around. Very powerful, and constantly getting better!
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Old 17th April 2013, 03:32 PM   #446
Julf is offline Julf  Europe
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Originally Posted by RickDangerous View Post
Ever heard of the WAF Audio Najda ?
DSP Xover project (part 2)

Seems to be the best value around. Very powerful, and constantly getting better!
But only unbalanced outputs.
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Old 17th April 2013, 03:45 PM   #447
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Quote:
Originally Posted by Julf View Post
But only unbalanced outputs.
This is the case because for most home applications this is actually better and it certainly is for use as an active crossover in a bi/tri/quadri-amplified active speaker, but it can also be modified to use balanced connectors, i believe. You'll have to search the thread for that.

I have done a lot of research on existing active filters and i am definitely going to be getting the Najda because it is great quality at an unbeatable price (btw, i have no shares in the company )
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Old 17th April 2013, 03:50 PM   #448
Julf is offline Julf  Europe
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Quote:
Originally Posted by RickDangerous View Post
This is the case because for most home applications this is actually better
Can you explain why you think unbalanced would better?

Quote:
it can also be modified to use balanced connectors, i believe. You'll have to search the thread for that.
It can be modified to use balanced connectors. It will still be an unbalanced output, but driving a a balanced connector. It will work, but not as well as a proper balanced driver.

Quote:
I have done a lot of research on existing active filters and i am definitely going to be getting the Najda because it is great quality at an unbeatable price (btw, i have no shares in the company )
Great that it works for you - we all have different criteria.
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Old 17th April 2013, 04:14 PM   #449
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Quote:
Originally Posted by Julf View Post
Can you explain why you think unbalanced would better?



It can be modified to use balanced connectors. It will still be an unbalanced output, but driving a a balanced connector. It will work, but not as well as a proper balanced driver.



Great that it works for you - we all have different criteria.
In home use most equipment uses unbalanced outputs. This means you don't need to convert the signal or use adapters. The current levels are fit for CD players, which is, i believe, still the most common (and possibly best) source in high-end audio applications. I know some have XLR outs but that is still a minority.

Driving bi-amped or tri-amped speakers is also simpler with unbalanced as most DIY kits (LM3886, etc.) use unbalanced levels and are also more compact because of this.

Normally you wouldn't use an analog input on the Najda anyway since it is digital and your source is most likely digital too: you would go out from your source on an optical or coax cable and enter the Najda digitally, only using its D-A converters. This means only one cable from your player to the Najda, and digital cables are often of perfectly good quality at a fraction of the cost of a good analog cable.
Your signal then typically goes from the Najda into 4 to 6 amplifiers, on a distance so short that there really would little to no benefit using balanced cables anyway. The amps are kept smaller & cheaper by the unbalanced design.
You then have a speaker cable (or 2 or 3 or 4) going to each cabinet.

Bear in mind that balanced, although preferable in pretty much most cases i suppose, really doesn't make much difference on very short distances and is of little point in a system where the CD player has RCA outs.
I too use mostly balanced (24 track recorder, XLR active speakers, XLR mic preamps, etc) but i think until home audio players & amps change from RCA to XLR or TRS Jacks then unbalanced makes perfect sense for active crossovers & multi-amplification in speakers.

In a blind test i don't think i'd hear the difference anyway.
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Old 17th April 2013, 05:09 PM   #450
Julf is offline Julf  Europe
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Quote:
Originally Posted by RickDangerous View Post
In home use most equipment uses unbalanced outputs.
Right. So in that case unbalanced would be more convenient. Not better, just more convenient.

Quote:
Normally you wouldn't use an analog input on the Najda anyway since it is digital and your source is most likely digital too: you would go out from your source on an optical or coax cable and enter the Najda digitally, only using its D-A converters. This means only one cable from your player to the Najda, and digital cables are often of perfectly good quality at a fraction of the cost of a good analog cable.
Absolutely. That is why the analog connection from your CD player has very little to do with either the Nadja or the connection between the Nadja and the amps.

Quote:
Your signal then typically goes from the Najda into 4 to 6 amplifiers, on a distance so short that there really would little to no benefit using balanced cables anyway. The amps are kept smaller & cheaper by the unbalanced design.
I totally agree. In a consumer-grade system, unbalanced is not much worse than balanced, and is cheaper. Does that make it better? No.

I prefer to go for one interconnect standard on my systems, and for me that is balanced XLR. That's why the Nadja isn't my favourite (despite the fact that the ncore differential balanced inputs would do a pretty good job of dealing with the unbalanced output of the Nadja.
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