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Locomotive Copperline
Old 19th July 2019
  #1
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swafford's Avatar
 

Locomotive Copperline

Variable phantom voltage, mute, attenuation, high pass....


Hmmm.....

Very interesting. Wonder where the price will fall.

Anybody at Namm look at this thing?

Old 19th July 2019
  #2
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I'm proud to say that I'm the co-inventor of the Copperline. I'm happy to answer any questions you all might have.
Old 20th July 2019
  #3
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Quote:
Originally Posted by copperline View Post
I'm proud to say that I'm the co-inventor of the Copperline. I'm happy to answer any questions you all might have.
Mostly I'm looking for phantom power to put in front a pair of Coil CA-70 preamps, so I'm curious as to the sonic affect of having available variable voltage on a condenser mic and what "vintage load" is and what problem it addresses.

thanks!
Old 20th July 2019
  #4
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Ultra high precision phantom power was one of the primary goals of this machine. People often don't realize how important quality phantom power is and how much bad phantom can adversely affect your signal. The variable voltage part of the Copperline will affect different microphones in different ways. Taking it up to 52 volts may add just a touch of openness and high end with a little extra headroom. Now taking it down low is where the fun begins. Each microphone is different and will react in different ways to low phantom. You can take a mic just above its breakdown voltage (where it stops working) and it can get really grungy and nasty and amazing (awesome on guitars). On some mics starving the phantom actually increased the high end. Vintage load adds resistance in parallel to the input of the Copperline which may help better match the impedance loads. Vintage gear wants to see about 600 ohms which is no longer the standard. This fixes that. The difference in the correct application is astonishing. Most good techs will strap a 600 ohm resistor across the output of a piece of vintage gear (lots of applications are missing this critical resistor). This is the correct solution but its semi-permanent and impossible to A-B. Frequency response opens up greatly with the right impedance matching. Because the resistance is on the input, this can also be applied to a microphone. Again, each mic is different but its just another tool to have some fun with. We are also using Crimson Audio inductors that were custom designed and made for the Copperline.
Old 4 weeks ago
  #5
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drBill's Avatar
Quote:
Originally Posted by copperline View Post
Ultra high precision phantom power was one of the primary goals of this machine. People often don't realize how important quality phantom power is and how much bad phantom can adversely affect your signal. The variable voltage part of the Copperline will affect different microphones in different ways. Taking it up to 52 volts may add just a touch of openness and high end with a little extra headroom. Now taking it down low is where the fun begins. Each microphone is different and will react in different ways to low phantom. You can take a mic just above its breakdown voltage (where it stops working) and it can get really grungy and nasty and amazing (awesome on guitars). On some mics starving the phantom actually increased the high end. Vintage load adds resistance in parallel to the input of the Copperline which may help better match the impedance loads. Vintage gear wants to see about 600 ohms which is no longer the standard. This fixes that. The difference in the correct application is astonishing. Most good techs will strap a 600 ohm resistor across the output of a piece of vintage gear (lots of applications are missing this critical resistor). This is the correct solution but its semi-permanent and impossible to A-B. Frequency response opens up greatly with the right impedance matching. Because the resistance is on the input, this can also be applied to a microphone. Again, each mic is different but its just another tool to have some fun with. We are also using Crimson Audio inductors that were custom designed and made for the Copperline.

Nice copper line! Congrats to you and Eric both. Great outside the box product!! Tell Eric that I'm in for one when they are released.

BTW, I've got customized switchable load resistance on several pieces of gear (LA2a, 3a, etc.) and it's a really nice tone shaper. Sounds similar to this.
Old 4 weeks ago
  #6
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Quote:
Originally Posted by swafford View Post
Wonder where the price will fall.
$750 is what eric mentioned....

https://www.youtube.com/watch?v=iRdO0YHoZD4
Old 4 weeks ago
  #7
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Quote:
Originally Posted by drBill View Post
$750 is what eric mentioned....

https://www.youtube.com/watch?v=iRdO0YHoZD4
Thanks. Eric responded to a query on his Instagram account about price, but I had not seen that video.

Shame GS did not do a NAMM thread this year.
Old 1 week ago
  #8
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curious to hear a U87 through this bugger.
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