Page 1 of 2 12 LastLast
Results 1 to 10 of 12

Thread: High end signal processing options

  1. #1
    Newbie
    Join Date
    Jul 2008
    Posts
    5

    High end signal processing options

    I'm about to order my mac mini for a head unit-less install. I have been researching my options for signal processing. I have thought about using the optical output directly to an external DAC/EQ/crossover, but I haven't found any viable options. Another consideration was to use either a usb or firewire sound card, preferably with RCA outputs. If needed, an S/PDIF output and a DAC can be used, and if that is necessary, I will keep my Denon DCT-A100 and use the digital coax input on it. I considered the M-Audio firewire 410, but that just doesn't seem like the best choice for this install because of the lack of RCA outputs. Again, I'm looking for high-end components only, this is going in a true SQ setup.

    Any suggestions?

  2. #2
    FLAC Machinehead's Avatar
    Join Date
    Jun 2007
    Location
    hijacks small portable city
    Posts
    1,381
    There are cheap enough converters to go from 1/8" to RCA connectors in the case of the Firewire 410.

  3. #3
    Variable Bitrate
    Join Date
    Apr 2004
    Posts
    343
    im doing that at the moment..

    eventually I will make my own 1/4" connections that go TR ~> RCA The adapters make the connectors way too long.

    I run windows, use audiomulch, and a variety of VST plugins. currently i have 3 EQ's (overall tonality and dual mono setup), time delays, phase adjustments, and crossovers. Im running a 3 way front stage with mono rear fill and mono subwoofer. one note of caution.. the maudio 410 does make noise during startup until it initializes.. then it makes a huge pop. make sure you have your amps turn on AFTER it has already initialized.
    Carputer HIFI car stereo project!
    [XXXXXXXXXXXXXXXXXXXXX-]
    95% COMPLETE! FINALIZING SOFTWARE PLATFORM!

    [XXXXXX--------------]
    30% COMPLETE! CAPUTER Version 2.0! Hardware FAILING! CARPUTER BLEW UP! AND NOW MONITOR TOO! WTF?!

  4. #4
    FLAC Machinehead's Avatar
    Join Date
    Jun 2007
    Location
    hijacks small portable city
    Posts
    1,381
    Quote Originally Posted by miztahsparklez View Post
    The adapters make the connectors way too long.


    Quote Originally Posted by miztahsparklez View Post
    one note of caution.. the maudio 410 does make noise during startup until it initializes.. then it makes a huge pop. make sure you have your amps turn on AFTER it has already initialized.
    I use the turn on delay feature on the Carnetix 2140.

  5. #5
    Low Bitrate crimsonaudio's Avatar
    Join Date
    Jan 2008
    Posts
    73
    Just buy a toslink converter box (you can get them that convert to SPDIF and/or AES) and pick the DAC of your choice.

  6. #6
    Newbie
    Join Date
    Jul 2008
    Posts
    5
    Startup issue of the 410 noted.

    I'm aware that there are ways of going from 1/4" to RCA, but the adapters/cables usually aren't very high quality. The adapter would also make it stick out way too much, which I don't want. This would probably be my last option.

    What I'm really looking for is crossover/equalizer/DAC combo with an optical input. Is there such a thing, or should I just go for an external sound card to a normal crossover/eq combo?

    Edit: Actually, let me eat my words here. I've been doing a little research on direct 1/4" to RCA interconnects and I'm actually finding some pretty high end cables. This option could possibly work out for me.

    Edit 2: While I'm at it, does anyone know the preout voltage on either the Native Instruments Audio Kontrol 1 or the M-Audio Firewire 410, and does anyone have personal experience with both? I'm torn between the two, leaning towards the Native Instruments unit.

  7. #7
    Variable Bitrate
    Join Date
    Apr 2004
    Posts
    343
    Quote Originally Posted by Machinehead View Post




    I use the turn on delay feature on the Carnetix 2140.
    im using a p1900.. the delay isnt long enough to overcome the pop. you would need at least 30 seconds..


    second (to thejimbo), dont waste your money on expensive cables. thats only what they are.. expensive. id get decent cables.. but honestly the difference it would make is negligible. those adapters also work perfectly fine. i do caution that the really cheap ones have a higher defect/inconsistency rate. if you can, try to build your own.


    preouts on the maudio is VERY low. however, i did not have to use a line driver with my amps (alpine PDX). i also have ZERO noise issues (besides the initial turn on pop, which i have already partially fixed with a manual switch).

    If you plan to use digital output, dont waste your money on a sound card unless your current sound card does not have an output. i believe alpine or one of the other big stereo companies make processing units that use optical inputs. the only downside to this is that they are very expensive... and i mean VERY.

    the Native Instruments card you listed is USB based and only has 4 channel output. thats great if you only have 4 speakers.... the m-audio has 8 channels. be sure that any card you pick is ASIO capable if you plan to do on computer processing.
    Carputer HIFI car stereo project!
    [XXXXXXXXXXXXXXXXXXXXX-]
    95% COMPLETE! FINALIZING SOFTWARE PLATFORM!

    [XXXXXX--------------]
    30% COMPLETE! CAPUTER Version 2.0! Hardware FAILING! CARPUTER BLEW UP! AND NOW MONITOR TOO! WTF?!

  8. #8
    Low Bitrate crimsonaudio's Avatar
    Join Date
    Jan 2008
    Posts
    73
    Quote Originally Posted by thejimbo View Post
    I'm aware that there are ways of going from 1/4" to RCA, but the adapters/cables usually aren't very high quality. The adapter would also make it stick out way too much, which I don't want. This would probably be my last option.
    No, you missed the point - there are high end (bit accurate) devices such as this that wouldn't require anything but a 5v supply to operate flawlessly and would allow you to use any cable you like.

    Besides, once you get the impedance right, the 'quality' of the digital cable has zero audible difference.

    What I'm really looking for is crossover/equalizer/DAC combo with an optical input. Is there such a thing, or should I just go for an external sound card to a normal crossover/eq combo?
    I guess you need to define what 'high end' means to you. Back when I worked at a shop that did serious SQ cars, it wasn't uncommon to incorporate high end studio/home audio gear into the system as few, if any, auto manufacturers build stuff anywhere near that quality. I figured you were going to get a nice studio quality DAC and incorporate that into your rig - there's zero chance any auto DAC will sound as good as your typical studio DAC.

    Will you hear that difference in your car? Doubtful.

  9. #9
    Maximum Bitrate pcpete's Avatar
    Join Date
    Mar 2008
    Location
    Toronto Canada
    Posts
    474
    Just FYI, I'm running the following audiopath and am quite happy with it:

    PC-> MAUDIO FW 410 -> JL CL-RLC -> SYMBILINK -> CH1/2 ZAPCO DC360.4 -> TWEETS
    PC-> MAUDIO FW 410 -> JL CL-RLC -> SYMBILINK -> CH3/4 ZAPCO DC360.4 -> MIDS
    PC-> MAUDIO FW 410 -> JL CL-RLC -> SYMBILINK -> CH1+2 ZAPCO DC500.1 -> WOOFER

    I use JL CL-RLC as line drivers and remote gain control for each stage.
    The Zapco symbilink also boosts the signal, so by the time it hits the amp I'm at around 10V preout.

    I've still got 2 ch on the fw410 if i want a 3 way front stage down the line.

    I have a carnetix 2140 and can configure the amp 'remote on' for quite a long time, I have mine set to 100s, so no thump.

    It's good to isolate your audio away from usb, such as fw, i've got 10 other usb devices hogging usb bandwidth.

    I think with the fw410 you get the most flexiblity and possibilties.....

  10. #10
    Newbie
    Join Date
    Jul 2008
    Posts
    5
    I didn't mean extreme high-end cables, it's just that I had only seen cheap radio shack level 1/4" to rca adapters. These are the cables that I think I will be using.

    I think I'll just use the 410 directly to the amps. Exactly how low is the output voltage?

    Also, can I do all processing functions such as eq, crossover, etc, on the mac with the 410?

Page 1 of 2 12 LastLast

Similar Threads

  1. Hibernation / Resume issue with PhoCo
    By zorro in forum Centrafuse
    Replies: 15
    Last Post: 10-09-2007, 01:21 AM
  2. Replies: 16
    Last Post: 02-10-2007, 11:07 AM
  3. Cell Booster / Amplifier
    By GruvThang in forum General Hardware Discussion
    Replies: 7
    Last Post: 07-28-2004, 06:35 AM
  4. BASIC Stamp question
    By Banderon in forum General Hardware Discussion
    Replies: 18
    Last Post: 05-07-2004, 08:33 AM
  5. ultra high end technofiles
    By acitrano in forum General Hardware Discussion
    Replies: 7
    Last Post: 04-17-2001, 07:58 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •