Sequerra Introduces 1070-A Mic Preamp
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November 30, 2001
Sequerra Audio Labs, L.L.C. announces the introduction of the Model 1070-A microphone preamplifier, a coalescence of engineering experience, intelligence, and innovation. Founders Richard Sequerra and Mark Conese designed the 1070-A to operate as close as two feet from the microphone and to drive long line-level cable runs up to 300 feet. Variable input loading perfects the circuit between the microphone and the 1070-A for improved fidelity and a remote preamp power supply assures the lowest possible noise floor.
The Sequerra 1070-A possesses electrical specifications that, might to some, read like misprints: It has a frequency response of 0Hz to 400kHz (-3dB), internal noise of 1 nano-volt per root-Hz, harmonic distortion measuring 0.0001% (0Hz to 40kHz with a 150-ohm input), a slew rate of 20 volts per microsecond, and phase linearity of -12 deg at 100kHz. It can accept up to a five volts RMS at the input and can output up to +27dBu before clipping.
An utterly distinctive black anodized aluminum tube houses the Sequerra 1070-A, reflecting its intended use near the microphone. Users select gain from +10dB to +70dB in 1dB steps and input loading of 150 Ohms, 1.2k Ohms, and 5k Ohms. A peak detecting output level meter facilitates the gain adjustment at the microphone, and a 48-volt phantom power supply switch allows the use of condenser microphones. Finally, phase reversal, muting, and two selectable high-pass filters round out the 1070-A's features. A separately available external power supply drives up to four 1070-As.
"The Sequerra 1070-A microphone preamplifier is a technical and aesthetic marvel," noted Brad Lunde, president of Transamerica, the US distributor for Sequerra Audio Labs. "Dick Sequerra is amazing, as no detail has escaped his scrutiny. This marks a new era of professional audio electronics design where the highest level of performance is sought. The 1070-A removes the last veil between mic and recorder for engineers, producers and musicians who must push the envelope to the absolute highest levels of resolution."
For more information, visit their web site at www.sequerra.com. |
