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Gear / Technical Help => Microphones & Setup => Topic started by: cgresq192 on November 13, 2006, 05:19:02 PM
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I was wondering if someone could tell me the difference between the two.
Right now I'm using a Church Audio 3 Wire Pre to power my Sound Pro CMC 4's (AT853's) and was wondering how a Beyer Dynamic MV100 compares?
It seems I really need to max the level on the 3 wire pre to get good levels. When I tranfer the wavs to sound forge, it seems I really need to normalize to get good listening levels.
Any help or suggestions are greatly appreciated!
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I was wondering if someone could tell me the difference between the two.
Right now I'm using a Church Audio 3 Wire Pre to power my Sound Pro CMC 4's (AT853's) and was wondering how a Beyer Dynamic MV100 compares?
It seems I really need to max the level on the 3 wire pre to get good levels. When I tranfer the wavs to sound forge, it seems I really need to normalize to get good listening levels.
Any help or suggestions are greatly appreciated!
What kind of recorder do you have and what are you recording?
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I was wondering if someone could tell me the difference between the two.
Right now I'm using a Church Audio 3 Wire Pre to power my Sound Pro CMC 4's (AT853's) and was wondering how a Beyer Dynamic MV100 compares?
It seems I really need to max the level on the 3 wire pre to get good levels. When I tranfer the wavs to sound forge, it seems I really need to normalize to get good listening levels.
Any help or suggestions are greatly appreciated!
You would need at preamp adaptors to run the mv100 it has 60db of gain my preamp has +20 big difference in price sonically my preamp would be just as good.
Hope that helps.
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I'm using a Jb3 to record too.
I was taping a solo piano gig the other night, piano/vocals. Pretty quiet house mix. So I had the pre set as high as it will go.
The loud arena shows the mix comes out well, however I still need to normailze in sound forge with the -16db option to get good levels.
In doing this, I get hiss in the recording.
Ideally I would like a hot signal going to the recording so I don't need to normalize at all. However it seems even at loud rock shows, the pre isn't bringing the levels up high enough?
Any idea are greatly apprecited.
Mics are mouted in a hat.
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I'm using a Jb3 to record too.
I was taping a solo piano gig the other night, piano/vocals. Pretty quiet house mix. So I had the pre set as high as it will go.
The loud arena shows the mix comes out well, however I still need to normailze in sound forge with the -16db option to get good levels.
In doing this, I get hiss in the recording.
Ideally I would like a hot signal going to the recording so I don't need to normalize at all. However it seems even at loud rock shows, the pre isn't bringing the levels up high enough?
Any idea are greatly apprecited.
Mics are mouted in a hat.
I have sold a lot of these preamps. I will say that not to many people have ever had a problem with them. I think when your doing stealth its very hard to shoot for a nice pretty 0db signal with no distortion. There has to be some give and take, I would try giving your Nomad some more level I would expairiment in a very quiet room with a nice pair of headphones. See how loud you can go with the nomad and my preamp, I am pretty sure you should be very close to the kind of levels you need. That being said, I also sell a st-9000 preamp that has 30 db of gain, they can actually both be used together for 50 db of gain total, more then enough for most things. If your interested I will give you a very good deal on it. Actually Next week if you want, I will send you one for free just pay the shipping, if it works out then we can talk about money. You might be better off with the st-9000, if so I will take back the 9100 and give you some cash back its up to you. Pm me if your interested.
Chris Church
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Nice offers!
You won't find that anywhere else, folks.
Try before buy...
Richard
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Attached is a pic of a recording at a loud arena rock show.
Don't get me wrong, once I normalize it sounds great, however, shouldn't the pre boost the levels enough so I dont' have to?
I might be doing something wrong, any help is appreciated. Levels are all the way up on the pre btw. Bass rolloff is on.
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At a loud rock show the Church 9100 should have plenty of gain. I record quieter stuff with no problem.
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hmmmmm, perhaps my gain is low because it's a 3 wire box?
How can I test my gain settings?
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hmmmmm, perhaps my gain is low because it's a 3 wire box?
How can I test my gain settings?
How fresh is the battery? and what type of battery are you using and what mics are they modifyied? you have to go into more detail.
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Battery is brand new duracell. Mics are modified by yourself with mini xlr adaptors
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Battery is brand new duracell. Mics are modified by yourself with mini xlr adaptors
You got my email I will take a look at them for free and see whats up.
Chris Church
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.... I also sell a st-9000 preamp that has 30 db of gain, they can actually both be used together for 50 db of gain total, more then enough for most things....
Chris Church
if more gain is needed is it generally OK to use two preamps in sequence?
or are there differences depending on design? e.g., which of the 2 designs, would be more adapt to be used twice in series?
the project13 or the ferocious at geocities?
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.... I also sell a st-9000 preamp that has 30 db of gain, they can actually both be used together for 50 db of gain total, more then enough for most things....
Chris Church
if more gain is needed is it generally OK to use two preamps in sequence?
or are there differences depending on design? e.g., which of the 2 designs, would be more adapt to be used twice in series?
the project13 or the ferocious at geocities?
I don't know about adding stuff in series.
But the second design you show is typical of most of these small preamps. I based my design on it as well. The first design is too simple, and will have higher distortion than the second.
Richard
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....But the second design you show is typical of most of these small preamps. I based my design on it as well. The first design is too simple, and will have higher distortion than the second.
Richard
Have you experimented with the different opamps in this circuit, Richard? The TL072, LM833 and NE5532 or any other?
Which one would you recommend for which reason?
I"d like to build one and run it with a single 9 Volt battery which excludes the LM833 since it is said to needs 2 batteries. Is the NE5532 best, would a TL062 also do?
Any other important observations that would help?
thank"s
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....But the second design you show is typical of most of these small preamps. I based my design on it as well. The first design is too simple, and will have higher distortion than the second.
Richard
Have you experimented with the different opamps in this circuit, Richard? The TL072, LM833 and NE5532 or any other?
Which one would you recommend for which reason?
I"d like to build one and run it with a single 9 Volt battery which excludes the LM833 since it is said to needs 2 batteries. Is the NE5532 best, would a TL062 also do?
Any other important observations that would help?
thank"s
For a cheap unit I recommend NE5532, or the Burr Brown Chips (OPA-2227/2228). I couln't hear much difference between these.
You might get better sound with some fancier chips, but start simple first.
Richard
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For a cheap unit I recommend NE5532, or the Burr Brown Chips (OPA-2227/2228). I couln't hear much difference between these.
You might get better sound with some fancier chips, but start simple first.
Richard
Thank's Richard,
yesterday I finally had time to build the preamp. I followed Tompolk's board layout, but it did not work and I could not find out yet why.
Before I start to redo all please let me ask:
The publisher of the circuit had later added, quote: now I would use 1uF film capacitors as input and output capacitors.. Therefore I had substituted all 4 pieces 2,2uF aluminium caps with 1uF poly caps. These poly caps have no polarity whereas the original alu caps did have. Is this is why it is not working?
BTW I could not get the NE5532, only the TL072, but I also have a BurrBrown OPA2604AP which I want to try out.
andreas
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....But the second design you show is typical of most of these small preamps. I based my design on it as well. The first design is too simple, and will have higher distortion than the second.
Richard
Have you experimented with the different opamps in this circuit, Richard? The TL072, LM833 and NE5532 or any other?
Which one would you recommend for which reason?
I"d like to build one and run it with a single 9 Volt battery which excludes the LM833 since it is said to needs 2 batteries. Is the NE5532 best, would a TL062 also do?
Any other important observations that would help?
thank"s
For a cheap unit I recommend NE5532, or the Burr Brown Chips (OPA-2227/2228). I couln't hear much difference between these.
You might get better sound with some fancier chips, but start simple first.
Richard
The major difference between the burrbrown and the TI chips, is distortion the Burr brown has much less. Also better headroom in the same exact circuit. And last but not least much less self noise.
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thank's Chris.
By now the preamp is working, tried it with all the three opamps.
This is the opinion of a newbee and could be an early call:
For recording ambience, audio to use for my videos, I will prefer the project13 preamp simply because it gives more gain, and I foind it very quiet. Using the 'geocities' preamp with my set up I'd have to add gain from the iriver's preamp and that is noisy.
I don't know about distortion and headroom though.
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thank's Chris.
By now the preamp is working, tried it with all the three opamps.
This is the opinion of a newbee and could be an early call:
For recording ambience, audio to use for my videos, I will prefer the project13 preamp simply because it gives more gain, and I foind it very quiet. Using the 'geocities' preamp with my set up I'd have to add gain from the iriver's preamp and that is noisy.
I don't know about distortion and headroom though.
+T to both you and Chris for keeping the DIY thread alive. I'm taking a break for a while. Well, if you can call "double taping" (two venues simultaneously), and running wires in various venues a break :).
Richard
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+T to both you and Chris for keeping the DIY thread alive. I'm taking a break for a while. Well, if you can call "double taping" (two venues simultaneously), and running wires in various venues a break :).
Richard
DIY is fun!
Would love to give you a break - during your break - by lending you a hand or two, would be a long desired learning experience, and fun!
enjoy and don't get endangled in wires!
Still trying to learn here:
with the 33k increased to 100k, the 1k5 not lowered, though higher the gain is still lower than the project13's