Blood Cells Audio Auscult Manual Download Page 5

Anatomy (Front Panel)

1. Main Outputs:

Balanced outputs - Plug in

a ¼” (6.35mm) TRS or TS (unbalanced is
also fine). Route to recording interface or
to house system, etc. Output level is
determined by the Main Out knob (

see

#12 below

). Avoid accidentally having

phantom power from your recording
interface/mixer on. There is built in
protection for overvoltage, but best
practice is to…not.

2. Main Output Peak LEDs:

Peak-detection

at about 10 Volts. This leaves a bit of
headroom before things truly begin to
distort the outputs of Auscult (note, these
peak when you’ve exceeded your
headroom at

modular

voltage level).

3. Main Inputs Section:

Typically if you

have some sort of mixer upstream from
Auscult, you’d plug the main outs of that
into these Main Inputs. If the source is
mono, plug it into the L/Mono jack and it
will automatically be normalled into the
right channel. This audio routes to both
the Main Outputs of Auscult, as well as to
the headphones (assuming the
headphone SRC knob is set to monitor
the Main Input.

See #9 below

).

4. Main Inputs Rear SRC Switch:

This

switch is the source selector for which of
the Main Inputs (front or rear) get routed
to the Main Outputs/headphones. When
the switch is off, the inputs on the front
panel are selected. When the switch is on
(pushed in), the inputs on the rear are
selected. Note it is not possible to mix
both front and rear sources together.

5. Main Input Peak LEDs:

These are post

SRC Switch.

©2022 Blood Cells Audio LLC

v1

5

Summary of Contents for Auscult

Page 1: ...www bloodcellsaudio com Auscult Output Module with Flexible I O Balanced Outputs and VCA Headphone Cue Monitoring 2022 Blood Cells Audio LLC v1 1 ...

Page 2: ...mpliance This product is in conformity with the following standards EN 55032 2012 AC 2013 EN 55035 2017 EN 61000 3 2 2014 EN 61000 3 3 2013 RoHS2 2011 65 EU WEEE 2012 19 EU 2022 Blood Cells Audio LLC v1 2 ...

Page 3: ...there is a quality headphone amplifier with two switchable output levels making it capable of driving even very high impedance headphones Finally additional mono stereo Main and Cue Input connections on the rear of the module allow for connecting to another module s expansion connectors also ripe for DIY ers This leaves the front panel inputs open for use with other modules and on the fly connecti...

Page 4: ...WHAT S IN THE BOX Auscult module 4 screws for mounting in your eurorack Ribbon cable for power 3 pin cable for expansion x2 2022 Blood Cells Audio LLC v1 4 ...

Page 5: ...ally if you have some sort of mixer upstream from Auscult you d plug the main outs of that into these Main Inputs If the source is mono plug it into the L Mono jack and it will automatically be normalled into the right channel This audio routes to both the Main Outputs of Auscult as well as to the headphones assuming the headphone SRC knob is set to monitor the Main Input See 9 below 4 Main Inputs...

Page 6: ... is equal At the extremes it s 100 one or the other It s useful to have a way to quickly and musically mix between Main or Cue considering the varying levels of sources you might plug into the Cue Input It s not always going to be 12 o clock 10 Headphone Level This is of course the volume control for your headphones Auscult ships in normal mode as far as Max Levels go which is best for typical hea...

Page 7: ...und through the sleeve of your TS cable There is protection to keep the chip from dying even with your headphones levels utterly cranked to the max but again it s just best practice 12 Main Out Knob This knob controls the level leaving the Main Outputs from off up to a max of 10dB The Unity mark 2 circles represents unity gain meaning the level leaving Auscult will match the levels coming into the...

Page 8: ... sure to flip the Input Mode switch to Mono this will route the Left Mono channel into the Right channel Be sure to keep the 3 pin jumper that is on there and reinstall it if not wired up Unterminated connections aren t ideal It won t hurt anything to leave it off but if you flip the SRC switch to the rear without the jumper you may hear a bit of the front connection bleeding in if the rear is unt...

Page 9: ... Bring it up easy Use LAF only for high impedance headphones for instance the Beyerdynamic DT 990 600 ohms One last Public Service Announcement again I m so sorry Before changing to a different pair of headphones or changing headphone settings on the back of the module always first turn down the headphone gain As an example changing from high impedance headphones to low impedance headphones withou...

Page 10: ...e an also quiet D O MIXX Main Output Gain Markings and Proper Levels It was considered to add a 4 dBu 10 dBV switch or even just hard set the output to a certain level But let s face it with the magical non standard chaos of eurorack as far as I m concerned you ll be putting an unknown voltage source into this module Also who knows what everybody will plug this into A knob that gives you all the o...

Page 11: ...Signal Flow Simplified 2022 Blood Cells Audio LLC v1 11 ...

Page 12: ...ded or some modules will need to be unplugged to accommodate Plugging it in Turn off your power supply then plug the 16 pin side of the included ribbon cable into an available power header The red stripe must be on the 12V side of the supply s header When in doubt check the documentation of your supply Connect the ribbon cable to the BCA module s power header on the rear The position of the 12V re...

Page 13: ...m Power 85 mA 12V 85 mA 12V Output Gain to 10 dB modular level Inputs Outputs Unbalanced modular inputs Impedance Balanced Outputs Unbalanced is fine too Input Impedance 100K ohms Output Impedance 330 ohms 2022 Blood Cells Audio LLC v1 13 ...

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