Preamp Shootout anyone?

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BradLyons
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Post by BradLyons »

Timeline wrote:Not at all true because it's in comparison to each other. This test was to eval the color sound of the preamps only, not a measurement test. The same equipment was used on each test and levels were carefully checked.

I think it's a VERY cool idea and really respect them for doing it. I wish more engineers would take the time to do this for us cause it seems most sales people are a too lazy I guess. :lol:
Lazy I'm NOT, finding time to get everything done is the problem. :wink: In fact, I'm working on doing these sorts of samples but with mixing (2) concerts, getting ready to track another concert, busy with helping design a new product, getting ready for our GEARFEST event and oh yeah...getting ready to get married, I'm just busy right now. 8)

BUT to your point---you said "the test was to eval the color sound of the preamps only". EXACTLY, that was my point. How can you accurately test the sound and coloration of the pre if you're starting with a microphone that itself introduces color and tonal changes? All this tells someone is how THAT MIC sounds through THAT PRE. Now if someone is looking to get a great sounding combination, I totally understand this test--but that's not what it was about. For example, take an AKG C414BULS and run it through a Grace 101 mic pre, it's going to sound horrible! BUT take that C414BULS through a Universal Audio Solo610 and it might sound quite good. Each mic and pre has it's own sound, so the only way to determine the sound of the pre is to remove the sound of the mic. THIS is why Earthworks mics are used in such testing, because they are unbelieveably accurate with ZERO coloration, ZERO phase issues and ZERO distortion unless you're hitting unimaginable audible levels. This is why I use my Earthworks through EVERY pre I take home and record dead space, instruments, etc through the pre to listen to THAT PRE'S SOUND. Of course, this doesn't matter if I don't have converters that properly record the signal and play it back. I use the Digi192I/O which is a phenominally accurate converter! Of course, that doesn't matter if my monitors aren't brutally accurate---which my ADAM S-series is. And if I want to test the real sound of a converter, I'm going to use a GML pre so I have NO coloration on the mic, NO coloration on the pre, and I'm using top-grade MOnster Cables for my connections so I lose nothing in the cabling.

Okay---so what if I want to judge the true sound of say a guitar cabinet? I'll put my Earthworks right up on the amp--because even though my Royer sounds better, that's not what I'm after. Now if I wanted to just figure out what's th better sounding mic? Well, I'd not use my TC30 for that :)

I read a forum thread somewhere where someone was using a Shure SM57 to listen to various pres and determine what pre sounded best. I was STUNNED that someone could honestly think an SM57 is an accurate judge--but more stunned that others were listening and believing it. If you want to listen to the sound of the pre, you need to not let the microphone's sound get in the way, your converters need to be passive in and out and your monitors need to be brutally accurate to the finest details. Otherwise, there are flaws in it. Testing for a product's exact sound is different than trying to figure out what makes a great combination of tonal preference. So anytime I see a micpre shootout and it has anything less than an Earthworks mic and that shootout is to determine what pre sounds best.....then it's bogus, no matter who does the shootout. Now if that same shootout was to decide what mic sounded best with each pre, sure---I'd follow it.

No offense, but I do these kinds of shootouts almost DAILY..... I hear a lot of manufacturers tell me how their product is the bestestest thing ever, I try it out and realize it's just like everything else or in some cases, is TOTAL CRAP---and I'll tell it direct to the face of their designer what I think of it and go back to my desk and move about my day. There is sooooo much stuff I do behind the scenes, so believe me---I'm NOT lazy. And I know you were just poking fun at me, that's cool :lol: I just have been through so much of this stuff that I know what can ruin or enhance a test. This is why I jump in on "listening to monitors" every time I see a thread about it, because that doesn't work either.
Thank you,
Brad Lyons
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Post by Timeline »

Well, if you can't do it with a comprehensive listening test as you allege then in your opinion it appears the buyer is left with no options for comparison because nobody anywhere that buys this stuff cares much for spec's if it doesn't sound good.

I'd take a 2v per microsecond rise time preamp any day that performed. That happens to be the difference between an API 2520 discrete and a 5 cent 5534 chip. Your precious specs are really mostly meaningless beyond basic output and gain performance when compared to listening with various material. Why would a Neve 80 series from the '60s with giant current driver outputs and single 24 volt rails be in such demand and value and a common chip design only at an 1/8th the cost and damn hard to sell? Because specs DONT matter dude.

You may have done many shoots as you claim but I'm thinkin you have just lost interest because everyone else out here on the buyer side seem to be quite pleased that someone has taken the time to TRY and do this.

These guys are friends of mine and they were not selling anything. They just wanted to hear a difference. That means something big time to me.

You should respect that at least.
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Post by BradLyons »

I'm not saying I dis-respect it, it's just that when it comes to product comparisons....it should be done a certain way. Like I said if the goal was to find out WHICH pre they like with THAT mic, then object achieved. BUT if the objection was to figure out which was the best sounding pre in general, you can't determine that in the way it was done. It's fun to compare great gear and it's easy to get caught up in that sometimes the "what is the best way to accurately judge this" is what gets lost. So I'm NOT saying others shouldn't do this, because I encourage EVERYONE to do as much listening to such gear as they can----but if you're going to do a public comparison and make it truly scientific, it needs to be scientific. It's just words and gear....nothing more, nothing less and nothing offensive or abrasive was meant, again---just gear 8) AND for what it's worth, you're preaching to the choir when you say "specs don't matter", I am in 100% agreement with you on that. BUT some specs do matter.... however, specs don't tell you how a product sounds, YOUR EARS tell you. AND that's why it's important to have a scientific approach to gear testing because your ears can fool you. Again, back to the the C414 through a Grace 101 v/s a UA Solo610. One might say "GREAT MIC, WARM AND DETAILED!" while the other configuration might make the same person say "BRIGHT MIC, TOO PIERCING!". Both are true, but the pre made the difference. OR you might say with the Grace and a C414 "wow, that pre is just too bright" while the UA you'd say "hey, that is just right". BUT take that UA pre and connect a Soundelux U99 and you'd say "wow, just too much warmth, this pre is no good" or through the Grace and you'd probably say "just right". So, do you judge the pre? Or judge the mic? There needs to be a totally neutral reference to judge how a box sounds, that is starts with the mic, goes through the converters and into the monitors. This is why when I make audio samples I provide 24-bit .WAV files to be loaded into one's DAW.

So again, I'm not bothered at all that this comparison was made...I applaud it, I just wish that after going through so much effort that it would have been more scientific is all ;)
Thank you,
Brad Lyons
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Post by monkey man »

`
You know, it does seem like a cryin' shame that any particular "coloured" mic was used, IMHO.
Given all the gear assembled and tested and the efforts of those who were recorded and such, it seems crazy that they were only one item away from neutrality as far as the sources were concerned.
To me at least.
Phil O wrote:
monkey man wrote:Coloured, eh?
I wondered about that, Brad.
Let me guess - they should've used Earthworks?
Hey. I've heard some Earthworks stuff, up close and personal. It don't get much closer to reality.
I want some!!!! Mmmmm, Earthworks.
Phil
Phil, I've only heard and read about the legendary accuracy of the brand.
I'd love, based on what I've heard, to try a TC30 for instance on my vox; at least I'd know I had recorded it accurately prior to completely obliterating the sound in my mix. :lol:

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Post by Phil O »

Sorry guys, but I have to side with Brad on this one. (I have to stop doing that, I have a reputation to protect. :shock: ) Speaking in color metaphors, if you start with a mic that has a blue overcast, then the pre that will sound the most natural will be the one that subtracts blue. The test will be skewed towards pres that are deficient in blue. If you really want to do an accurate pre shootout, you want everything else in the chain to be as neutral as possible. I know that I disagree with Brad often, but this time he's right.

Don't get a big head, Brad. There will be plenty of battles in our future.:twisted:

Phil
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Post by BradLyons »

True Monkey, tis true. THAT was precisely my point---only I typed a few books where you typed a few words, DOH! I'm going to be working on some samples over the next few months of recording an acoustic guitar through an Earthworks into radically different mic pres. It's amazing to hear the difference just a pre makes while using a colorless mic. Likewise I'll be doing the same of various pres using a mic that is greatly colored, you'd be surprised how little change you hear.
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Post by Phil O »

monkey man wrote:I'd love, based on what I've heard, to try a TC30 for instance on my vox; at least I'd know I had recorded it accurately prior to completely obliterating the sound in my mix. :lol:
Once I recover from a recent purchase (got a sub to go with my Adams), my next step is to add some mics to my closet. I considering some TCsomethin's.

Phil
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Post by BradLyons »

Phil O wrote:
Don't get a big head, Brad. There will be plenty of battles in our future.:twisted:

Phil
Windows! :twisted:
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Post by monkey man »

LOL! :lol:

I like Phil's "TCSomethin's" remark too.
TC30Somethings, perhaps?

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Post by Timeline »

Brad,

I passed your comments on the the group that did the test.

Cheers,
Gary
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Post by Timeline »

Phil O wrote:Sorry guys, but I have to side with Brad on this one. (I have to stop doing that, I have a reputation to protect. :shock: ) Speaking in color metaphors, if you start with a mic that has a blue overcast, then the pre that will sound the most natural will be the one that subtracts blue. The test will be skewed towards pres that are deficient in blue. If you really want to do an accurate pre shootout, you want everything else in the chain to be as neutral as possible. I know that I disagree with Brad often, but this time he's right.

Don't get a big head, Brad. There will be plenty of battles in our future.:twisted:

Phil
This may be true to a minimal degree Phil but not that important because of the same mics being fed exactly to the different pres. I would want to hear which one performs with ALL sources of colored sounds. I'm not looking for clean necessarily just sonic "Pleasant" if I may. You could use a damn SM 57 for that matter if the feeds are the same. :lol:

Maybe they should have run the entire mix through each preamp dropped -50db, once at +4 and once at +8 so we could hear complex waveform and peak clip results with these tracks. I think that would also shown allot. At least certainly more reveling than a single source. I think I would have added that for sure.
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Post by monkey man »

Good point, Gary.

Various degrees of "overdrive", so to speak, would have been useful, if only for the fact that colouration is amplified/exaggerated and therefore easier to discern. :?

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Post by Phil O »

BradLyons wrote:
Phil O wrote:Don't get a big head, Brad. There will be plenty of battles in our future.:twisted:

Phil
Windows! :twisted:
Them's fightin' words!
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Post by jeff sanders »

that was a lot of work. cheers2u

i think its impossible to get any reply other than,"you must bring to the studio anything you wish to know about and compare gear only after spending hours using each one, blah blah." i know i can get anal too but pleaseeeee. rocket science its not, forgive me recording egos. if one gives a definite answer then the thread ends. i believe some may like the sound of their own voice so the debate provides a longer soapbox opportunity.

p.s. lotta suck ups too

rock on! enjoy your music, thats whats most important.

peace
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Post by Phil O »

jeff sanders wrote:rocket science its not
Indeed. What it is, is the science of recording.

Phil
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