Page 1 of 2 12 LastLast
Results 1 to 10 of 16

Thread: Can someone recommend a good preamp/eq?

  1. #1
    Low Bitrate
    Join Date
    Jan 2003
    Location
    Ohio
    Posts
    96

    Can someone recommend a good preamp/eq?

    I am selling my headunit to a friend and venturing into new territory for me. I am going to connect my computer to a 4 channel amp to drive my speakers. I have been doing some searching on the forums with not to much luck. It seems that I need some kind of preamp to raise the signal voltage from my soundcard before I run it into the amp? Is that correct? The soundcard that I am using is a sb live 5.1. Ive seems talk about preamps in threads, but no actual links to a product.

    so can someone recommend a good preamp/eq?
    Project K4RPU73R
    ----------------------
    Via Epia-M 9000
    256MB PC2100
    40GB IBM Travelstar
    7" Xenarc
    DeLorme Earthmate GPS

  2. #2
    C4M
    C4M is offline
    Maximum Bitrate C4M's Avatar
    Join Date
    Apr 2002
    Location
    Sydney, Australia
    Posts
    824
    I'm thinking about replacing my current crossover with one of these.

    You don't have to use a line driver between the soundcard and the amp - you can connect them directly. Personally, I want this because it puts everything that I need in the one box.

    On top of that, it gives be a volume knob on the dash, which is nice, and also the ability to eq on the fly rather than rely on manky winamp eq bands.

    On top of that, Audio Control gear is totally tits.

    C!
    http://carpc.riposte.net
    I reserve all rights in connection to each post I author, without exception.

  3. #3
    Low Bitrate
    Join Date
    Jan 2003
    Location
    Ohio
    Posts
    96
    I was under the impression that running it into an amp with out a line driver would give some crappy quality sound? Maybe I am being mislead by that. It just seems like every head unit you see has 2v or 4v outputs. my other question is my current amp can only take a 4v input. Lots of these line drivers I see advertise crazy high outputs of like 13v or something. Will this hurt my amp or destroy SQ or SPL at all?

    someone here is selling a AudioControl Overdrive that I am really interested in. The only thing keeping from buying it right now is I want something with a master volume controll on it. That three.1 you posted is very nice, but out of my price range. I would like something under $200 us.

    could anyone tell me if any of these are good?
    I know a lot on the first few pages are gonna be crapEtronics EQ


    I was also thinking this might be decent Clarion DPH-910
    Project K4RPU73R
    ----------------------
    Via Epia-M 9000
    256MB PC2100
    40GB IBM Travelstar
    7" Xenarc
    DeLorme Earthmate GPS

  4. #4
    C4M
    C4M is offline
    Maximum Bitrate C4M's Avatar
    Join Date
    Apr 2002
    Location
    Sydney, Australia
    Posts
    824
    Two things:

    Most decks (such as my favourites - Alpine) are only capable of their rated voltage output when the volume is maxxed out. How often do you listen at those sorts of volumes?

    The Audio Control stuff is capable of 13v peak, and 5v continuous: the continuous is the one that is really relevant - for example my Soundstream Reference amplifier (read: expensive comeptition hardware) is capable of 5v inputs, and in any event, you can dial it back anyway if need be (presuming that you take the time to level match, which you should).

    Audio Control is expensive. But it's also very, very good.

    C!
    http://carpc.riposte.net
    I reserve all rights in connection to each post I author, without exception.

  5. #5
    Low Bitrate
    Join Date
    Jan 2003
    Location
    Ohio
    Posts
    96
    thanks! you have been very helpful

    its just so confusing looking through all these different products. I would like to have an eq and crossover but there are just so many. I have no clue whats good or not. Also something with a volume controll would be nice so I don't have to fiddle with windows volume all the time
    Project K4RPU73R
    ----------------------
    Via Epia-M 9000
    256MB PC2100
    40GB IBM Travelstar
    7" Xenarc
    DeLorme Earthmate GPS

  6. #6
    Variable Bitrate
    Join Date
    Jan 2002
    Location
    Florida
    Posts
    236
    I have already beat this topic to death. I have a SB Live, and a 4 channel amp. There are a few options to get the soundcard output to a high enough level for your amp (most amps take 3-5 volts standard, i think... soundblaster put out 1-2 Vrms).

    1.) Preamp. This is a great idea, but seems to be the difficult part **IF** you want 4 discrete channels. See, i wanted 4 seperate channels for a near 5.1 effect.... BUT there are very few 4 channel preamps. Audio control has the Matrix, which is a 6 channel preamp, but they are usually too costly and do NOT have a master volume control. Take my word for this part, just about EVERY OTHER preamp that says 4 channel, is just spliting a single stereo input.... In other words, R+L input, and then the preamp copies it an outputs R+L and the same R+L. No joke.

    2.) This option is where I am. I have a factory stock amp. This means my amp is an infinity from chrysler. The amp is NOT a standard amp. It inputs slightly higher voltages, and therefore is a little different than most amps. Most amps have a gain control that might let you input a very low signal, like a SB, but this one does not. In short, what I have done is get ahold of an Audio Control MVC, and use some parts from my original headunit to get the signal right. The original head unit did some preamplification that boosted the line level signal to the amp signal, and I am just removing the preamp board in the head unit and using it as my preamp.

    3.) This is probably what you have read about. Splicing your computer's audio signal into your working head unit. This does assume that you keep your headunit in the car, but it seems to be an easy way to get your audio signal to your amp.

    Just some things to think about. If you do not want 4 discrete channels, there are other options. For example, i believe that Mobile Authority has a preamp/EQ that will work for your setup. I THINK that it is the MEQ-800 ... sells for as low as $35 on the net.


    Good Luck
    System in the works:
    Celeron 850 or PIII 933, SB Live! Value into a stock 4 channel amp, ATI vid, 10.4" sharp LCD w/ allen's controller, Elo SW touchscreen overlay and controller, GPS, TV tuner, FW DVD drive, 4 port serial card, and some other stuff....

    Loads of ideas.

  7. #7
    C4M
    C4M is offline
    Maximum Bitrate C4M's Avatar
    Join Date
    Apr 2002
    Location
    Sydney, Australia
    Posts
    824
    I presume that you are watching heaps of movies in your car to justify four channel (effectively surround sound). Given that mp3 is recorded at best in 2 channel stereo, I'm not following why you'd bother.

    Lytheum - Is that what you want - four discrete channels? Or does your rear mirror your fronts?

    Naturally, Audio Control gear focusses on the delivery of 2 channels of data - it's designed for high fidelity audio. If you're wanting 4 or 6 channel audio, then you'll certainly require hardware that is designed with this purpose in mind.

    EDIT: I had a look at the Mobile Authority website, and it seems that the MEQ800 is a booster and eq, and while it offers a volume knob, is not just a pre-amp - it's a tiny power amp as well. I certainly wouldn't be wanted to use that to deliver a signal to my amplifier. If you didn't have an amp, that would be a different story.

    C!
    http://carpc.riposte.net
    I reserve all rights in connection to each post I author, without exception.

  8. #8
    Low Bitrate
    Join Date
    Jan 2003
    Location
    Ohio
    Posts
    96
    Mirroring front and rear is just fine with me. 4 seperate channels would be cool, but seems like a pain.

    my main concern is the signal isn't good enough to run through an amp, but if you say the sblive puts out 1-2v rms it should be just fine to run to an amp. My current amp and the kicker I am getting well accept much lower inputs then that.
    Project K4RPU73R
    ----------------------
    Via Epia-M 9000
    256MB PC2100
    40GB IBM Travelstar
    7" Xenarc
    DeLorme Earthmate GPS

  9. #9
    C4M
    C4M is offline
    Maximum Bitrate C4M's Avatar
    Join Date
    Apr 2002
    Location
    Sydney, Australia
    Posts
    824

    Lightbulb

    Post above updated.

    C!
    http://carpc.riposte.net
    I reserve all rights in connection to each post I author, without exception.

  10. #10
    Low Bitrate
    Join Date
    Jan 2003
    Location
    Ohio
    Posts
    96
    http://www.etronics.com/product.asp?...de=lanvibe750s

    what do you think about that one? Seems to have everything I would need
    Project K4RPU73R
    ----------------------
    Via Epia-M 9000
    256MB PC2100
    40GB IBM Travelstar
    7" Xenarc
    DeLorme Earthmate GPS

Page 1 of 2 12 LastLast

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
  •