Locomotive Audio Copperline

Introducing Copperline, an extraordinary utility unit designed to revolutionize your audio workflow. Positioned between a microphone and preamplifier or connected to two line-level devices, this powerful two-channel system is packed with invaluable features that will elevate your sound to new heights. With a 5-position attenuator, 5-position high-pass filter, mute, vintage load, polarity control, and an innovative variable voltage phantom power, Copperline empowers you to creatively shape and transform your audio signals like never before.
At the core of the recording chain is the microphone, which relies on the quality of its power source. Phantom power, often taken for granted, plays a crucial role in delivering pristine audio. However, not all phantom power supplies are created equal. Why settle for generic, "whatever works" options when your beloved microphone collection deserves the best?
Enter the Locomotive Copperline, which provides up to 52 volts of phantom power from a quiet, high-current supply. Experience the unparalleled difference as your microphones come alive, exhibiting enhanced detail and transient response that surpasses cheap commodity supplies or preamps that treat phantom power as an afterthought.
Protect your valuable vintage input transformers and eliminate power-on pops with Copperline's slow-start phantom power. By gradually introducing the phantom voltage over a 5-second period, this innovative feature prevents voltage transients at your mic preamp's input. Furthermore, the gentle ramping up of the phantom power voltage ensures a smooth start, safeguarding vintage input transformers from potential damage. Say goodbye to unfortunate stories of vintage modules being harmed by sudden phantom power spikes. With Copperline, your gear is protected from harm.
Unleash a world of sonic exploration with Copperline's groundbreaking variable voltage phantom power. This unique feature empowers you to adjust the voltage sent to your microphone, thereby influencing its behavior and tonal characteristics. With a simple turn of a knob, you can breathe new life into your phantom-powered microphone, uncovering captivating new textures and colors. Embrace the thrill of audio engineering as you stumble upon happy accidents and unlock unique sounds that leave a lasting impression. This concept is so revolutionary that Locomotive has a patent pending for its design, demonstrating its unparalleled innovation in the field.The Copperline serves as the ultimate sonic companion, bridging the gap between microphones and preamplifiers or seamlessly connecting two line-level devices. Say goodbye to cumbersome XLR barrel connectors and embrace the convenience of having all your passive tools in one place.
Need to load down the signal from your device connected to the Copperline? Engage the "Vintage Ω" or "Vintage Load" switch, engaging an 825-ohm resistor between pins 2 and 3 of the XLR input. This feature proves invaluable when your connected device's output impedance is high. Some microphones and line-level devices exhibit improved performance with a heavier/lower Ω load. The Copperline empowers you to effortlessly switch between different load impedances, exploring new sonic possibilities with ease.
Effortlessly reverse the polarity of your signal with the Polarity switch, providing additional flexibility in shaping your sound. Mute the signal independently, allowing for troubleshooting and quick adjustments without altering other settings. The 5-position high-pass filter offers precise control over your audio, with options ranging from Off, 45 Hz, 75 Hz, 150 Hz, to 300 Hz. This custom-designed low-noise high-pass filter ensures exceptional performance, adapting to various microphone output impedances.
Copperline's 5-position rotary switch attenuator pad provides versatile attenuation options, offering unity, 15 dB, 20 dB, 30 dB, and 40 dB levels. By combining the functionalities of Channel 1 and Channel 2, you can unlock even greater potential. Stack attenuations, alter the order of operations, or explore the possibilities of cascading high-pass filters. The Copperline empowers you to experiment and push the boundaries of audio engineering.
Discover new sonic horizons with Copperline
Unleash the full potential of your audio signals with Copperline, your Swiss Army knife for sound engineers. With its array of features, including variable voltage phantom power, vintage load, high-pass filter, and attenuation, this utility unit opens doors to creative expression and sonic exploration. Embrace the art of audio engineering and embark on a journey of sound discovery with Copperline by your side.