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Benchmark ADC1
Old 21st July 2003
  #1
Lives for gear
 
atticus's Avatar
 
🎧 15 years
Benchmark ADC1

Hi all,

I know that some of you had a look at the prototype of the ADC1 at the NAMM show so I figured I'd give the rest of you all a quick peek. Here is a list of the specs and features of the ADC1 as well as a picture. Thanks.

ADC1

MP5(tm) Microphone Preamp

Gain -3 to +56 dB
Maximum Input Level +27 dBu
Maximum Output Level +28 dBu
EIN < -132 dBu @ 30 to 56 dB Gain
SNR 137 dB @ 0 dB Gain, > 120 dB @ 36 to 56 dB Gain
Bandwidth > 1 MHz
Phantom Power 48V with Enable Switch / Channel
High Pass Filter Off, 50 Hz, 100 Hz, 6 dB/Octave


UltraLock(tm)

Total Isolation of Conversion Clock
Jitter on Digital Inputs will not Degrade Conversion Performance
Will Lock to AES, SPDIF, or WC with no Change in Performance
Jitter-Free Performance in all Modes of Operation


Benchmark A/D Conversion

24-bit 192-kHz Conversion
THD+N < -110 dB (0.0003%)
Dynamic Range > 120 dB A-Weighted
44.1, 48, 88.2, 96, 176.4, and 192 kHz at 24-bits (Main Outputs)
44.1 or 48 kHz, 16 or 24-bit (Secondary Outputs)

Meters

9-Segment, Dual Range, with Peak Hold

Power Supply

Internal Torroid Transformer
IEC Connector with International Voltage Selection
Wide Operating Range
EMI and RFI filtering


Mechanical

1-RU high
Β½-Rack wide
Rack Mount Kit Available
Attached Thumbnails
Benchmark ADC1-adc1small.jpg  
Old 21st July 2003
  #2
Rab
KMR Audio
 
Rab's Avatar
 
🎧 15 years
Looks very cool! Got any idea of shipping dates and RRP yet?
Old 21st July 2003
  #3
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Ruphus's Avatar
 
🎧 15 years
Though this is not for me ( broke ) IΒ΄d love to see a pic of the rear.
Old 22nd July 2003
  #4
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littledog's Avatar
 
🎧 15 years
Quote:
Originally posted by Ruphus
Though this is not for me ( broke ) IΒ΄d love to see a pic of the rear.
Prefer the view from the backside? I always knew we had a lot in common!
Old 22nd July 2003
  #5
Lives for gear
 
🎧 15 years
So how is the mic pre going to sound versus a "normal" line input? This looks like a great unit (especially for folks like me that do location gigs). That said, I like my own pres or I come in at line level in mastering...

--Ben
Old 22nd July 2003
  #6
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🎧 15 years
Is the preamp bypassable? I'd love one of these things in conjunction with my Pendulum Quartet just for some little solo, one track at a time 192 songs.
Old 22nd July 2003
  #7
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Ruphus's Avatar
 
🎧 15 years
Quote:
Originally posted by littledog
Prefer the view from the backside? I always knew we had a lot in common!
One needs to know where to plug in the antenna cable, innit?
BTW, can it receive BBC too? heh
Old 22nd July 2003
  #8
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atticus's Avatar
 
🎧 15 years
The pre's are bypassable, plus there is an insert point on the back. I'll try to get a pic of the back of the unit asap. Thanks.
Old 22nd July 2003
  #9
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ExistanceMusic's Avatar
 
🎧 15 years
Sorry, probably really obvious, but just to confirm, this is a single channel unit, yeah?
Old 22nd July 2003
  #10
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atticus's Avatar
 
🎧 15 years
No, it is a stereo or dual mono unit. Thanks.
Old 22nd July 2003
  #11
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Ruphus's Avatar
 
🎧 15 years
Quote:
Originally posted by atticus
No, it is a stereo or dual mono unit. Thanks.
Uh!

drool ... >slap myself<
And it will cost? ... slap!

WTF, I got a good sounding converter, donΒ΄t I?
So what am I doing here!? > kick myself out<


heh

PS: LittleDog,

If you bought that one too that would be very unsocial, you know that, huh?
Old 25th July 2003
  #12
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pounce's Avatar
 
🎧 15 years
any suggested price or shipping date to go with that picture ??
Old 25th July 2003
  #13
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🎧 15 years
just one silly question....if its half rack wide....y does it have screws to be mounted on a rack? or are those screw for another faceplate that puts the ADC and the DAC on one rack?

looks cool as hell though
Old 25th July 2003
  #14
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atticus's Avatar
 
🎧 15 years
You can bolt an ADC1 and a DAC1 together. I don't have exact pricing or shipping info but I can say that the price will be fair and it will ship when they are built and orders come heh It's not too far off at all
Old 25th July 2003
  #15
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Ruphus's Avatar
 
🎧 15 years
Quote:
Originally posted by Teacher
does it have screws to be mounted on a rack? or are those screw for another faceplate that puts the ADC and the DAC on one rack?

It is both. There is an optonal plate and an intermediary for interconnection which are being mounted to one of the units sides. So in the rack it would be mounted left or right site of the unit and to the other site with the plate.

Thus, for users who had the Benchmark DAC already it would be best to mount the DAC and ADC in one raw. But it would still need that little optional intermediary. ( Except you had the tools to mill one yourself.)

Especially for those who would order from abroad it would be good to consider those mounting parts in advance. Otherwise the price would considerably be rising by additional shipping costs.
Old 25th July 2003
  #16
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🎧 15 years
Oh, David came in while I was typing.
Old 28th July 2003
  #17
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jeronimo's Avatar
Just to make sure no one will forget to ask
when is it avaliable and for how much
Old 28th July 2003
  #18
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Geoff_T's Avatar
 
🎧 15 years
Re: Benchmark ADC1

[QUOTE]Originally posted by atticus
[B]Hi all,

I know that some of you had a look at the prototype of the ADC1 at the NAMM show so I figured I'd give the rest of you all a quick peek. Here is a list of the specs and features of the ADC1 as well as a picture. Thanks.

ADC1

MP5(tm) Microphone Preamp

Gain -3 to +56 dB
Maximum Input Level +27 dBu
Maximum Output Level +28 dBu
EIN < -132 dBu @ 30 to 56 dB Gain
SNR 137 dB @ 0 dB Gain, > 120 dB @ 36 to 56 dB Gain
Bandwidth > 1 MHz
Phantom Power 48V with Enable Switch / Channel
High Pass Filter Off, 50 Hz, 100 Hz, 6 dB/Octave

Hi

Forgive my ignorance but could you quote a few impedances in the figures you give so that I can understand the exceptionally good figures? Like what's the input impedance of your amplifier and what value did you have it terminated?

I'm speaking from a measurement system of Neve era where a 200 ohm terminating resistor that one might use to simulate a microphone would have an inherant noise of around -129.6dBu at room temp filtered 20 - 20KHz. So, if you had an amp with 56dB gain the minimum noise physically achievable was (-129.6 + 56) = -73.6dBu, not including the noise factor of the mic input stage which might be another 1dB.

So you can see my puzzlement at achieving an SNR of >120dB at 56dB gain because this would be an EIN of -176dBu...

I presume you measure noise down from the maximum output wheras, in the old days, we measured it from the noise floor up! What would the figure be measured the traditional way?

You may have guessed... I'm very much an analogue man!
Old 30th July 2003
  #19
007
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007's Avatar
 
🎧 15 years
Glad I caught this thread on time, as I'm slowly getting rid of my mediocre gear and, in small increments, taking the high road by investing in better quality front-end and AD/DA conversion for my ProTools setup. So, the Focusrite Penta goes (although it's not a bad little preamp for $500) and now I'm itching to see what the ADC-1 will have to offer. I've been eyeing the DAC-1 for some time, and am pretty close to ordering one, then started looking for some good AD and a more colourful stereo preamp, perhaps a Brent Averill, Vintech or a UA, but how convenient to possibly have everything I need in one rackspace, with ADC and DAC mounted side by side!
Very cool...

Quick q: Will the ADC-1 have switchable a Mic/Line/Instrument selector?
Old 30th July 2003
  #20
Here for the gear
 
🎧 15 years
David,

Quick question about upcoming ADC 1.

PK at GC Pro told me I could never get truly professional results out of my Digi 002 Rack no matter how much tweaking I did.

Do you agree with this, If so why?

I am thinking cause no word clock in?

Anyway, with your ADC 1 will that become my Master Clock even though I don't have a Word Clock in? I assume I would use this with the SPDIF or Optical in of the 002? Also, when I am mixing would I still be using ADC 1 as the Master Clock?

Please excuse my ignorance as I am fairly new to all this digital stuff and trying to learn as quickly as I can.

I hope you can find the time to offer your help and suggestions about this.

Thank you
Brian
Old 30th July 2003
  #21
Here for the gear
 
🎧 15 years
Also, will these have built in limiting?
Old 30th July 2003
  #22
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atticus's Avatar
 
🎧 15 years
Well first of all I see no reason why you couldn't get pro results with a 002, seeing as how the term "pro" has dozens of different meanings these days. However, I do believe that the ADC1 will enable you to get better results simply because it provides you with a better better tool for recording, in my opinion. I know that you can set the sync to the S/PDIF input so you shouldn't have any problems there. As far as limiting goes, there isn't any built into the unit, but if you will be using the mic pres there is a insert on the unit for any sort of dynamics processing you may want in the signal path.

To answer an earlier question the ADC1 does not have an instrument input, but it does have a mic/line level input on XLR's and 1/4 inch TRS inserts on the rear of the unit. Thanks.
Old 30th July 2003
  #23
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Ruphus's Avatar
 
🎧 15 years
Guess its PS is switchable 110/220V, right?
Old 30th July 2003
  #24
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atticus's Avatar
 
🎧 15 years
Quote:
Originally posted by Ruphus
Guess its PS is switchable 110/220V, right?
Yes, it sure is.
Old 31st July 2003
  #25
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jeronimo's Avatar
Hey David... just tell us when and how much!!!!
Old 31st July 2003
  #26
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Ruphus's Avatar
 
🎧 15 years
Damn I would love to read a user comparance to MiniMe before early September, so that an old lady who will be crossing the big water could bring the right box for me.
I prefer the ADC options ( like with Benchmark DAC as well great connecting possibilities / BTW, David, no pic of the rear for us litlle peeps?) and 192K is certainly useful for keeping up with future demands also, but I want a sound of similar colour like what the competitive box is known for.

Would be lovely alltogether. stike
Old 1st August 2003
  #27
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mr.gefell's Avatar
 
🎧 15 years
the mini-me is clear,detailed and has extended/low end boost.
sounds more warmer and forgiving than grace design v3.but the pre's in the mme are not passable.

i am assuming the adc-1 to be very defined,sharper,lots of details from
top to bottom,and airier than the mme( better hi-fi vibe).and the pre's are passable.which is a big plus in my book!!!!!

p.s i really like the v3.just amazing.
Old 1st August 2003
  #28
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Ruphus's Avatar
 
🎧 15 years
Quote:
i am assuming the adc-1 to be very defined,sharper,lots of details from
I picture it similarly. Certainly great sounding, but rather clean. My personal demand though is nicely coloured pres.

Someone whispering into my ear that the ADC1 to be coloured like the rainbow in the way of that other little box would be

I know, eggs have to be laid before one can fry them. ok, ok
Old 1st August 2003
  #29
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pounce's Avatar
 
🎧 15 years
hope it ships soon. i officially placed my order a day ago with my regular dealer. it sure to replace my apogee converter.
Old 1st August 2003
  #30
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lucey's Avatar
Quote:
Originally posted by jeronimo
Hey David... just tell us when and how much!!!!
under a thousand!


next week!


under a thousand!


next week!




The 002 with a nicer clock at the SPDIF or ADAT in becomes very useable.

The 002 with a Lucid 8824 is even better as the analog path pre conversion is more musical in the Lucid than the 002's analog components.
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