SKU: 92951535137

Radial Engineering TWIN SERVO 500 Series Jensen Mic Preamp

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Description

Radial Engineering TWIN SERVO 500 Series Jensen Mic PreampThe Radial Engineering Jensen Twin Servo 500 Series Mic Preamp is a faithful recreation of Deane Jensen's original Twin Servo 990 mic pre, regarded by many audio professionals as one of the finest preamps ever made. This mic preamp has pedigree. The circuit designed by the Jensen engineering team includes two cascaded 990 op amps to share the load and provide 60 dB of clean gain. The two servos eliminate the need for signal degrading capacitors in the

The Radial Engineering Jensen Twin-Servo 500 Series Mic Preamp is a faithful recreation of Deane Jensen's original Twin-Servo 990 mic pre, regarded by many audio professionals as one of the finest preamps ever made.

This mic preamp has pedigree. The circuit designed by the Jensen engineering team includes two cascaded 990 op-amps to share the load and provide 60 dB of clean gain. The two servos eliminate the need for signal-degrading capacitors in the audio path and allow for less than -120 dBu of noise.

Engineered for superior sound quality, the two oversized input and output Jensen transformers are a crucial part of the design. They contribute to lowering the noise floor and freeing the signal from hum and RF interference, while producing an extended frequency response and plenty of headroom.

Augmented by a 180º polarity-reverse switch, a -15 dB pad, and a high-pass filter that eliminates excessive low-end, the Twin-Servo opens musical tone-shaping possibilities. Other features include a dual-gang potentiometer for optimal gain, a 10-segment LED meter that gives instant visual feedback for the input signal and a 48V phantom power-activation switch to power condenser microphones. The front-panel Neutrik combo connector offers the choice of XLR microphone input and standard hi-Z 1/4" instrument input.

Re-imagined for today, this adaptation of the Jensen Twin-Servo fits the popular 500 series format.

Jensen Mic Input Transformer

The JT-16-PCJR is exceptionally quiet and linear from 5 Hz to 50 kHz with less than 0.06% distortion at 20 Hz

Jensen Dual Op-Amps

100% discrete audio signal path without any tone-shifting capacitors

Jensen Output Transformer

The JT-11-EM is linear from 2 Hz to 200 kHz with less than 0.001% distortion at 20 Hz

180° Polarity-Reverse Switch

Reverses pins 2 and 3 at the output to help phase-align microphones when two channels are in stereo use

10-Segment Meter

10-Segment Peak Indicator with Hold. Custom-designed circuit for greater VU accuracy

Dual-Gang Pot

Simultaneously controls the dual-990 op-amp topology for optimal gain at all levels

High-Pass Filter

Gentle high-pass filter may be inserted into the signal path to reduce excessive low-frequency content and control resonance

Pad

Reduces the input sensitivity by -15 dB when amplifying exceedingly high output sources

48V

Activates the 48V phantom power supply for use with condenser microphones and active direct boxes

Combo Input

Combination balanced XLR mic input and 1/4" instrument input is mounted on front panel for ease of use

Ground Lift Switch

Set-and-forget rear-panel ground switch lifts the pin-1 ground at the XLR input

Omniport

Available when used with the Radial Workhorse, the Omniport accesses a hi-Z instrument input

Full Enclosure

100% encased steel casing reduces magnetic interference from nearby modules that may cause noise pollution

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 92951535137

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MaryBeth K
Louisville, US
★★★★★ 5
Fae Courts with High Intrigue
Format: Kindle
This book is one that just builds and builds and then surprises you to no end. You may think you know the villains and then you are jolted in another direction. Princess Reyna is a real gem, strong of character, a fierce fighter, and loyal to her family and kingdom. Just when you think she and Lorcan, well you know, the plot is flipped. Can't wait to see where this goes in book two.
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Reviewed in the United States on July 7, 2023
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Kindle Customer Maureen
Houston, US
★★★★★ 4
Slow, sorry but good
Format: Kindle
This was a slow moving book. Lots of character pov chapters, lots of superfluous descriptions and endless courtly appearances stalled this book to start. Once you get into the heart of the story, it takes off. Before you know it the book is done. My favorite character is Reyna. She is so strong. She is true to herself. She gets into a lot of trouble with her headstrong ways but it's entertaining. I have high hopes for Lorcan. He is honorable to a fault. Thane had turned out to be better than I thought but i still don't like him. Eislin is useless. Great plot twists at the end. I'm looking forward too book 2.
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Reviewed in the United States on June 6, 2020
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Faifre6
Natrona Heights, US
★★★★★ 5
Very detailed! Beautiful world building! Strong Heroine!
Format: Kindle
Starts off a little slow and confusing with different POV’s, but starts to all come together towards the middle to make an elaborate plot line and makes it all worth it. Beautiful world building and attention to detail as well as great writing. The cliffhanger was gut wrenching! Can’t wait for the next book!
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Reviewed in the United States on March 4, 2020
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Isabelle
Massapequa, US
★★★★★ 4
Interesting
Format: Kindle
This was a very captivating book once you got into it thoroughly. But the third person perspective was a bit hard to get used to. But as you got into it and followed the different characters, it was interesting and filled with intrigue, conflict and forbidden love. I can’t wait to read the next one and to complete the series.
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Reviewed in the United States on November 12, 2022
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Julie R.
Charlottesville, US
★★★★★ 5
Great start
Format: Kindle
I loved this book! It's funny but still deals with tough themes, like chronic illness, a serial killer on the loose, and a dash of self-harm. The guys are interesting and distinct, we don't know too much about them yet. It does end on a really terrible cliffhanger but on the bright side the next book is out and I believe the series is complete. I have enjoyed both of these authors separately and this is a great team up!
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Reviewed in the United States on May 2, 2025

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