SKU: 92951535137

Radial Engineering TWIN SERVO 500 Series Jensen Mic Preamp

$400.00 $444.44
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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
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 92951535137

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4.0 ★★★★★
Based on 18 reviews
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Mia Thacker
Belleville, US
★★★★★ 5
Worth it!
Color: Pink, Color: Pink
Great buy! Worth the money and the color is nice. The keyboard works, some buttons I haven’t figured out but for the most part it’s worth the purchase!
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Reviewed in the United States on May 20, 2026
M
Verified Purchase
Ms Rene Butts
Fort Morgan, US
★★★★★ 5
Nice colors
Color: Yellow
This was a perfect choice for my iPad. The color is very vibrant easy to put on and its sturdy will buy again in another color.
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Reviewed in the United States on May 17, 2026
B
Verified Purchase
Bernie
Charlottesville, US
★★★★★ 5
Keyboard is magnetic to cover so it doesn’t fall out
Color: Pink
Absolutely love this ! My iPad fits perfectly in this and the keyboard is touch sensitive which I like and the color combo on the keyboard makes it fun ! Definitely will recommend this
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Reviewed in the United States on June 11, 2026
K
Verified Purchase
Kat
Alexandria, US
★★★★★ 5
Great quality case and keyboard
Color: Purple, Color: Purple
Super good quality case, I was actually surprised since it’s such a good price. It fit my 10.9 inch perfectly! Keyboard has magnetic attachment to the case which is super handy, and it connected with Bluetooth seamlessly. Keyboard isn’t silent, it’s on the louder side, but not too loud at all and it doesn’t bother me at all because I prefer clickier keyboards. Oh also something that’s really cool is that you can change the colors of the keyboard, love that!
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Reviewed in the United States on April 10, 2026
U
Verified Purchase
User123456
Alexandria, US
★★★★★ 5
Amazing!
Color: Midnight Green
The Hamile Keyboard Case for iPad (11th & 10th Generation) is a practical accessory for turning your iPad into a more laptop-like setup. Designed with a detachable wireless keyboard and protective case, it’s aimed at students, professionals, and anyone who types frequently on their tablet. One of its most appealing features is the 7-color backlit keyboard, which makes typing easier in low-light environments while also adding a customizable, stylish look. The backlighting can usually be adjusted in brightness and color, making it both functional and fun to use. The keys are generally responsive and comfortable enough for everyday typing tasks like emails, notes, and document work. The case itself provides decent protection for the iPad, helping guard against scratches and minor bumps. It also holds the tablet at a stable viewing angle, which is useful for video calls, studying, or streaming. The wireless connection is typically simple to set up via Bluetooth, and the keyboard can be detached when not needed.
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Reviewed in the United States on May 21, 2026

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