SKU: 92951535137

Radial Engineering TWIN SERVO 500 Series Jensen Mic Preamp

$400.00 $444.44
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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5

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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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4.2 ★★★★★
Based on 17 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 5
Excellent Product!!!
Size: X-Small, Color: Black
Must buy item. I would buy a coat for every color they offer. The coat has four large pockets, two exterior and two interior pockets. All of which are large.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
A
Verified Purchase
Alexis
Boise, US
★★★★★ 5
Really nice for the price!
Size: XX-Large, Color: Brown, Size: XX-Large, Color: Brown
This jacket is a really nice find for the price, my bf is 6’4, 350 and the XXL fit really well. It was a little tight in the bicep but other than that it fit well in the chest and in the waist. It falls just below the belt. It was really nicely made and I ended up wearing it at the end of the night (due to not bringing my own jacket in December in the snow) and it kept me pretty warm and was really nice and cozy! So if you’re looking for a pea coat / trench coat that isn’t $500 then definitely buy this one!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 24, 2022
K
Verified Purchase
KR DIGITAL MEDIA
Lake Worth, US
★★★★★ 3
Almost great! But falls a little short
Size: Large, Color: Wine Red
It’s a great looking pea coat, but the stuffing/insulating material appeared to be lacking. Granted price is nice so one can only expect so much. I was willing to overlook this and then I tried it on - the fit was great except for the sleeves. I wear 32-33 sleeves and these must be 35-36. They swallow up my hands. It’s bummer because the maroon/wine color is so nice. I’ll be returning unfortunately
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2024
C
Verified Purchase
Corey Bryhan
Waukegan, US
★★★★★ 5
Great quality :-)
Size: X-Large, Color: Black, Size: X-Large, Color: Black
So I purchased a Nother pea coat from a box store that didn’t quite fit right and was not very flattering, so I returned it. I’m 6 foot tall 210 pounds with very wide shoulders and long arms so I decided to get an extra large. It’s slightly loose around the waist section, but I think that’s supposed to be that way considering you may wanna wear layers underneath. I may possibly get it tailored a little bit tired her, but the chest and arms fit great and the length is perfect. Great quality for the price and definitely a nice piece to the collection!
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Reviewed in the United States on December 1, 2023
C
Verified Purchase
Christopher
Chelsea, US
★★★★★ 5
Slip-on ready and great quality
Size: 9, Color: Black
These shoes were stuff for the first half hour but then feel great. Well worth the chance and money. Great quality and slip-on easy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026

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