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juicedLink DT454 – XLR User Manual

Xlr adapter / preamplifier / agc disabler
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juicedLink
© 2010 juicedLink, LLC.
ENGLISH
All Rights Reserved.
DT454 User Manual: Rev1.10

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Summary of Contents for juicedLink DT454 – XLR

  • Page 1 © 2010 juicedLink, LLC. ENGLISH All Rights Reserved. DT454 User Manual: Rev1.10...
  • Page 2 Click on heading to jump to page … Page 2 www.juicedLink.com...
  • Page 3 DT454 – XLR Adapter / Preamplifier / AGC Disabler Page 3...
  • Page 4 Get notified on new revisions of this User Manual, product updates, new product releases, and tutorial videos. Subscribe to the blog: www.juicedlink.com/blog/index.html Notes regarding documentation in this manual are as follows: - References to markings/labels on the unit are denoted in underline/bold.
  • Page 5 For lowest noise performance while recording fine audio detail, you will want to manually throttle back the camera gain, and replace that noisy gain with clean gain from the juicedLink low-noise preamplifier. Follow the directions from Canon for how to navigate the firmware menus.
  • Page 6 5D running MagicLantern being fed by juicedLink low- noise preamplifiers. Since the DT454 has even more available gain than the juicedLink CX family of preamps, the 5D analog gain can be set to 0dB gain, for even lower noise performance than was even achievable before.
  • Page 7 There’s no need to follow any of the post-production steps presented in this Manual, since there was no need to use any of the AGC disable features of the DT454. Return to Contents Get notified on User Manual and product updates: Page 7 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 8 DT454. f. On the front panel, turn the RING-R potentiometer (volume control) to the eleven o’clock position. g. Set the METER switch to the LO position on the bottom of the DT454. Page 8 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 9 3. After the camera power gets cycled, you will need to hit RECORD again to eliminate the noise in the headphones. Return to Contents Get notified on User Manual and product updates: Page 9 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 10 DT454. e. On the front panel, turn the RING-R potentiometer (volume control) to the twelve o’clock position. f. Set the METER switch to the LO position on the bottom of the DT454. Page 10 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 11 (which is the size of the plugs on the cable included with the DT454). So, you will need to use an adapter to convert to 2.5mm. Return to Contents Get notified on User Manual and product updates: Page 11 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 12 Manual gain (like the Canon 5D), or even the signal to noise performance of a camera which does not have Manual gain (but not the fixed hi analog noisy gain in the front end) while using the DT454 AGC disable technique (such as the Canon T2i, etc).
  • Page 13 There’s no need to follow any of the post-production steps presented in this Manual, since there was no need to use any of the AGC disable features of the DT454. Return to Contents Get notified on User Manual and product updates: Page 13 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 14 Case Dimensions: 4.5” x 3.2” x 1.5” Weight: 10 ounces (no battery) o Includes: Stereo 3.5mm miniplug cable, 1/8” Allen wrench key Features and Specifications are subject to change without notice. Return to Contents Page 14 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 15 Photos Get notified on User Manual and product updates: Page 15 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 16 Return to Contents Page 16 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 17 5. Output (OUT) at an amplified mic level, which connects to the microphone input of your camera through a stereo minijack cable (included) 6. Headphone (PHONES) minijack output and volume control Return to Contents Get notified on User Manual and product updates: Page 17 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 18 3. Audio Inputs: XLR-L (left) and XLR-R (right) balanced mic or line inputs (unbalanced capable) 4. Audio Inputs: TIP-L (left) and RING-R (right) unbalanced mic inputs (or playback monitor inputs) Return to Contents Page 18 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 19 Bottom Switches Get notified on User Manual and product updates: Page 19 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 20 10. ¼-20 thread for mounting DT454 on top of a tripod (etc). 11. Hex key receptacle. USE HEX KEY (included) HERE TO TURN ¼-20 SCREW INTO CAMERA FOR MOUNTING TO BOTTOM OF CAMERA. Return to Contents Page 20 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 21 2. Hex key. USE HEX KEY TO TURN ¼-20 SCREW INTO CAMERA FOR MOUNTING TO BOTTOM OF CAMERA. Return to Contents Return to Contents Get notified on User Manual and product updates: Page 21 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 22 Return to Contents Page 22 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 23 ¼-20 threads in the base of the camera. The Hex Key provides leverage so the ¼-20 mounting screw can be secured tightly. Return to Contents Get notified on User Manual and product updates: Page 23 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 24 The illustration shows what portion of the DT454 base is occupied by a typical quick release mounting plate (Manfrotto 357). The plate limits access only to items rarely used (sometimes, these are only used once at setup with your equipment). Return to Contents Page 24 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 25 OUT jack. Then, plug the other end into the camera’s 3.5mm minijack microphone input. Note, some cameras may use 2.5mm plugs instead of 3.5mm plugs. Inexpensive adapters are available to make the required connection. Return to Contents Get notified on User Manual and product updates: Page 25 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 26 These are nice because of their high capacity, and fast recharge time. The higher capacity also extends battery life. Here is an estimate for typical continuous usage from a fresh battery of this type: With one 2mA mic @ 48V: ~5hrs Return to Contents Page 26 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 27 RCA unbalanced outputs. This can easily be accomplished with a Stereo 3.5mm Male to 2x RCA Female Y Cable (see Hosa part numbers YRA-167 and YRA- 154): Get notified on User Manual and product updates: Page 27 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 28 You will be shorting out the phantom voltage, and can potentially damage your equipment. Here are some examples of connectors which connect pin 1 to pin 3. Rode VXLR: Page 28 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 29 This is what is known as “phantom power”. Get notified on User Manual and product updates: Page 29 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 30 SPL handling capability of the microphone (which is not a very important parameter for general use). Check out more information about battery life in the “Powering” section. Return to Contents Page 30 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 31 The LINE position inserts a 40dB attenuator before the preamps in the XLR-L and XLR-R signal chains. For typical microphone use, the MIC position is selected. Return to Contents Get notified on User Manual and product updates: Page 31 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 32 Note, the MONO switch position will result in a loss of some gain because of the loading effect. The DT454 has sufficient maximum gain to make up for this loss in most circumstances. Return to Contents Page 32 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 33 (right). Note, when using the NOISE AGC Disable signal, you must abandon the right recording track. See more details in the AGC Disable section. Return to Contents Get notified on User Manual and product updates: Page 33 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 34 GAIN to the LO position (to get back into the sweet spot of the potentiometer’s adjustment range). Check out the “Metering” section for more details for appropriate level settings. For Playback Monitor settings, see the Playback Monitor Section. Return to Contents Page 34 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 35 GAIN to the LO position (to get back into the sweet spot of the potentiometer’s adjustment range). Check out the “Metering” section for more details for appropriate level settings. Return to Contents Get notified on User Manual and product updates: Page 35 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 36 The general principle to improve your signal-to-noise performance is to throttle back the noisy camera amplifiers, and replace that noisy gain with clean gain from the juicedLink low-noise preamplifier. This results in an improved signal-to-noise performance while recording fine audio detail, such as dialogue.
  • Page 37 Gain Control), the DT454 offers 2 methods to defeat the AGC. Signal-to-noise is improved when noisy camera amplifiers are throttled back, and the noisy camera gain is replaced by clean gain in the juicedLink low-noise preamplifiers. This is easily accomplished with cameras having manual control of audio gain (see the “Low Noise Performance”...
  • Page 38 This not only effects aliasing which can produce in-band tone effects, but also creates audible pops and clicks as the parameters get adjusted by the firmware. Page 38 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 39 RING-R), then you must use the PAN TO L switch to route those signals over to the left output channel. Although you sacrifice one recording channel, the NOISE approach is a much more stable and repeatable technique for AGC DISABLE. Get notified on User Manual and product updates: Page 39 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 40 The meter sensitivity has been pre-calibrated for a typical camera. If further calibration is desired, then see the “Meter” section for more details, as there may be exceptions. Return to Contents Page 40 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 41 Check to see if your camera is listed in the “Notes on Specific Cameras” section. This list includes: - Canon 5D MarkII - Canon T2i, 7D, 1D Mark IV Get notified on User Manual and product updates: Page 41 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 42 If it is desirable to adjust the meter sensitivity, there are adjustment potentiometers behind the holes in the bottom of the enclosure next to the HI and LO markings which provide a limited adjustment range. Return to Contents Page 42 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 43 Y Cable (see Hosa part numbers YRA-167 and YRA-154): If the NOISE AGC Disable approach was used, then simply do not plug in the right (red) channel, since this will be abandoned anyhow. Get notified on User Manual and product updates: Page 43 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 44 If you are using the NOISE AGC Disable approach, then simply do not plug in the right (red) channel into your monitor, since this will be abandoned anyhow. Return to Contents Page 44 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 45 ANALYZE > PLOT SPECTRUM will bring up a frequency analysis window of your waveform iii. Notice the tone amplitude is now knocked down Return to Contents Get notified on User Manual and product updates: Page 45 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 46 (stretch) the track to fill the rest of the timeline 4. Final Cut / Express – Alternate Insructions a. Delete the right track i. Drag clip into timeline and select it with your mouse Page 46 Omissions / Suggestions? Contact Us www.juicedLink.com...
  • Page 47 “Pan” should currently read “-1” iii. Click the slider and move it towards the center so it reads “0” iv. Enjoy your clean audio! Return to Contents Get notified on User Manual and product updates: Page 47 - Subscribe at http://www.juicedlink.com/blog/index.html...
  • Page 48 Return to Contents The design of the juicedLink family of ultra portable mixers is uncompromising in quality and performance, and utilizes top grade professional components. We are proud of our product, and are committed to servicing you to make your customer experience positive.

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Dt454