Preamps/Förstärkare

The Twin-Servo™ is a high performance microphone preamp that leverages two discrete 990 op-amps for incredibly clean and transparent operation.

• Exceptionally wide frequency response from 0.5Hz to 150kHz
• Twin-Servo topology eliminates capacitors in the signal path
• Virtually zero phase shift or bandwidth limitation
• Oversized Jensen® transformers for maximum headroom

Legendary Performance

The Twin-Servo utilizes the now-famous JE-990 circuit originally developed by industry icon Deane Jensen in 1988, providing an update in the 500 series format. Its superior performance is derived from two 100% discrete 990 op-amps cascaded in tandem to deliver 60dB of gain with less than 1/10th the distortion and twice the bandwidth of a single stage design. This also reduces noise at mid and low levels, a critical advantage for those that record with a wide dynamic range. In order to minimize phase distortion, all capacitors have been removed from the audio signal path and replaced by two DC servo feedback circuits. Oversized Jensen™ transformers are placed at both the input and output of the — producing a frequency response that extends from 0.5Hz to 150kHz. The result is a remarkably detailed and accurate microphone preamp suitable for any critical recording application.

The PowerPre™ is a high performance microphone preamplifier designed for use with any 500 series modular rack, featuring 100% discrete components for optimal signal transfer and a Hammond output transformer for a smooth and warm tone.

• Hand selected 100% discrete electronics
• Hammond broadcast transformer output
• AccuState low-noise input circuit
• 3-position Vox control for added air or punch

Quiet operation with added character

The PowerPre is designed for clean low-noise operation, with an AccuState input stage what automatically optimizes signal-to-noise at all levels with up to 55dB of gain available. A Hammond broadcast transformer on the output provides vintage warmth and a classic smooth tone, and a Vox switch allows you to add extra character to the signal: The Breath setting adds high frequency air that can accentuate a vocal track or add harmonic content to an acoustic guitar, while the Punch setting adds body when recording electric guitar or it can be used to fatten up bass tracks.

The PowerTube™ is a class-A vacuum tube microphone preamplifier that captures the essence of the original sound source while imparting the rich harmonics, warmth, and character of a transformer-coupled tube circuit.

• High voltage 12AX7 tube drive with 60dB of gain
• Smooth sounding Jensen transformer input
• Hand selected 100% discrete class-A electronics
• Tube circuitry provides vintage warmth and character

Vintage tube tone in a modern preamp

The PowerTube leverages the warmth and tone of a 12AX7 vacuum tube using an innovative non-radiating charge pump that supplies 140 volts to the tube to deliver the excitement and character of a high-voltage vintage tube amplifier. This feeds a class-A balanced output stage that together, can produce as much as 60dB of gain, making the PowerTube ideal for use with all microphones. For even more character, activating the Air switch adds a slight edge to a vocal track or sparkle on acoustic guitar, while low frequency resonance is easily tamed using the high-pass filter.