What's the deal with preamps for recording?

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Looking at others' recording gear, I often see folks going into a tube (or other) preamp before going into the audio interface and computer/DAW. Do you use one? How does it help? Is it always preferable to no preamp? What are some of the better models?

Teach me.

- Keith
 
Re: What's the deal with preamps for recording?

I've been investigating quite a bit. I am planning on doing a recording project that will require a lot of acoustic guitar. The preamps that seem to be the most desireable are the Mbox or Mbox2. These have quite a few features and come with Pro tools LE. I know a fewe guys that are using them and they are very happy with them.

The other one that I have heard some good reviews on is the Lexicon Omega. This also has a lot of features and comes with Cubase LE.

I have not used either of these so I can't say which is better.... a 3d one is the M audio. They all seem to be pretty similar regarding functions and price. I am holding off a little but I am probably going to get the Digidesign Mbox or Mbox2. They seem to have the most features and with the Pro tools I think it will probably do all I need.

First I want to get a Mac Laptop with Garage band. Then the audio interface.

Right now I have been playing around with Audacity and it seems real easy to use, but I can see signifcant limitations....... It will have to do until I get the laptop.
 
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Re: What's the deal with preamps for recording?

I'm a big fan of a genuine tube preamp for DAW recording, because it gives the option of a different sounding preamp to those found in an audio interface. Generally, the goal for interface manufacturers is to use the cleanest, quietest, highest headroom preamps they can, which is just how we need it to be. However, for some applications, it's good to be able to warm up the incoming signal before it hits the potentially cold world of the DAW. I was very lucky to be introduced to one of those mad professor tube guys back in '99, a crazy New Zealander, and he was building these beautiful all tube preamps based on the old Pultec circuit. What I didn't realize at the time was that he was going as far as using vintage Mullard tubes, which were obviously a major contributing factor to the gorgeous tone that his preamps produced. He also built me an all tube compressor to complete the "front end" of my recording setup, which at the time was based around the dedicated Fostex hard disc recorders.

When I changed to computer recording with my Mac, I obviously needed to get an audio interface, and I opted to go for broke and get a Metric Halo ULN2. Now these are some serious mic pre's. These days I tend to audition my input source through both the ULN2's pre's and the Pultec, and decide from there which will suit best. This makes for a very versatile system, and by having signals recorded through different pre's there seems to be an added dimension and distinction to the various signals. I might have acoustic guitars which have their open sweetness through the Metric Halo's pre's, sitting alongside electric and bass tracks which have been warmed up through the Pultec. I recently recorded some tracks for a female vocalist who had a very open, clean vocal tone, and by putting her through the Pultec, I was able to add density, warmth and complexity to her sound, which complimented it beautifully. It also meant that very little needed to be done at mixdown to have her vocal sit comfortably in the track.

With regard to the brands and models available, there needs to be a distinction made between true tube preamps and the more ubiquitous pretenders, which usually have maybe one 12AX7 sitting in a prominent place with a cheesy orange light behind it to make it appear to be glowing. These are not true tube preamps. They are solid state devices with some small part of the circuit being graced by the tube, in some cases, I seriously doubt that the tube is doing anything at all. This is a case of manufacturers jumping on the trend towards old school recording methods in the recording industry, and attempting to filter this down to the home consumer by throwing around terms like "tube warmth" and including the cheesy, useless "tube in the window" into their products. This is one area where you truly do get what you pay for. To give you some idea, my tube compressor has a total of six tubes in it, assigned to various gain and threshold functions to achieve its results. I'm a little out of touch with what's available these days, but I'll do a little research and see if I can find some contenders for a good place to start with real tube preamps.


Cheers.....................wahwah
 
Re: What's the deal with preamps for recording?

Wow! Thanks for the info, guys. To put things in perspective, I run my guitar/mic into an M-Audio FireWire 410 audio interface, then directly to my Mac PowerBook. I don't think there's a tube in the M-Audio interface.

Is it advisable to get a tube preamp to place before the audio interface, using both simultaneously?

- Keith
 
Re: What's the deal with preamps for recording?

Wow! Thanks for the info, guys. To put things in perspective, I run my guitar/mic into an M-Audio FireWire 410 audio interface, then directly to my Mac PowerBook. I don't think there's a tube in the M-Audio interface.

Is it advisable to get a tube preamp to place before the audio interface, using both simultaneously?

- Keith

No, you're right Keith, there's no tube in the M-Audio. If you were to use a tube preamp, you would bring the signal out of the tube pre into the M-Audio on a line (1/4" TRS as opposed to XLR) thus avoiding the mic preamps of the M-Audio, because you wouldn't need to preamplify the signal since that would already have been done by the tube pre. It's certainly not an essential, in fact many would say that it's a luxury, especially considering the advances in plug-in technology to add warmth and fatness to signals once they are in the DAW. In my case, I already had the tube preamp and compressor from my previous setup using the Fostex machines, and I wasn't about to sell them when I switched to computer, because they sound so sweet on so many things. As a result, I have them there as an option.

Since genuine tube pre's are a fairly expensive item, I don't think it's something you need to look at unless you a) have the cash to spare, b) can justify the purchase on the amount of recording you will be doing, or c) hear a tube pre that just makes everything you record sound so much sweeter that you've just GOT to have it! In many cases, you can get a similar effect by using plug-ins like PSP's Vintage Warmer, at a fraction of the cost of a hardware tube preamp. Having said that, my tube front end will be staying right where it is!


Cheers.....................wahwah
 
Re: What's the deal with preamps for recording?

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Re: What's the deal with preamps for recording?

FMR Audio makes the 2-channel RNP (Really Nice Preamp) which mates perfectly with their RNP (Really Nice Compressor). I'm not sure about current prices, but the combo of Preamp and Comp cost less than $700 a few years ago. It is not a tube pre, but it is very big and warm sounding with superb build quality. I would consider adding a single channel tube preamp for a different flavor, but I see no reason to replace the dual RNP and RNC setup for home recording.
 
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