Table of Contents
Advertisement
Quick Links
The Dangerous Music 2-Bus Manual
Thank you for choosing products from the exciting line of Dangerous Music
recording equipment. Many years of dependable and trouble-free
performance can be expected from our gear. This has been made possible by
careful design, construction, and top-shelf component choices by recording
industry veterans. This manual will assist the user with installation of the
2-Bus, as well as calibration of the system.
Contents
Introduction...................................... 1
Safety review.................................... 2
Overview and Hook up........................ 3
Front Panel and Use............................ 4
Calibration....................................... 5
Grounding and Interface ...................... 6
Balanced and Unbalanced connections....... 7
Grounding revisited............................ 8
Connector Pin-Outs............................. 10
Specifications................................... 11
Advertisement
Table of Contents
Related Manuals for Dangerous Music 2-Bus
Summary of Contents for Dangerous Music 2-Bus
-
Page 1: Table Of Contents
The Dangerous Music 2-Bus Manual Thank you for choosing products from the exciting line of Dangerous Music recording equipment. Many years of dependable and trouble-free performance can be expected from our gear. This has been made possible by careful design, construction, and top-shelf component choices by recording industry veterans. -
Page 2: Safety Review
Company contact information is on the last page of this manual. The CE sign on this product signifies the fact that the 2-Bus has been tested and verified to conform to the applicable standards of 89/336/EEC. EN55103-1... -
Page 3: Overview And Hook Up
REM/EXP The remote/expansion connector allows for expandability of the system. The 2-Bus has a mix buss input on this connector to stack multiple 2-Buses or link with a 2-Bus LT. The pinout is on the Connector Pinouts page (p.10). DC IN There is a grey power cable to hook the 2-Bus to its power supply. -
Page 4: Front Panel And Use
Maybe the drums need gain so the other outputs can be run hot. The Gain button for inputs 1 and 2 would take care of this. The 2-Bus Main Output is then sent to an A/D converter that is recording back into the DAW (or an external device such as an editing system, tape machine, or CD burner) using the Output Trim Level to set the gain precisely. -
Page 5: Calibration
This example is a bare bones mix. The effect of setting up a system like this becomes more apparent as more tracks need to be mixed. The 2-Bus and 2-Bus LT are stackable to accommodate systems of any size. -
Page 6: Grounding And Interface
-18dBfs signal at 1 kHz with the digital oscillator to the individual D/A outputs one channel at a time. Turn the 2-Bus output gain knob all the way up and measure the voltage across pins 2 and 3 of the 2-Bus output connector. If there is a device in the studio that has a calibrated VU meter (Dangerous MQ, tape machine, compressor) patching the 2-Bus into it makes for convenient adjustment. -
Page 7: Balanced And Unbalanced Connections
(common mode). The common mode noise is canceled by the differential action of the instrumentation amplifier in the first stage of the 2-Bus. Signal gets through and the grounds stay put inside their respective pieces of gear. Unbalanced Audio Connections An unbalanced source driving a 2-Bus input usually presents no problem because of the differential action of the input stage. -
Page 8: Grounding Revisited
(a piece of speaker cable with bare ends or guitar cable tips) against a chassis screw of the source and the grounding post of the 2-Bus. If the buzz goes away, then the 2-Bus top should come off and the jumper position should be changed. - Page 9 Dangerous Music 2-Bus Manual To comply with international standards and wiring practices, recording equipment manufacturers are required to connect all the shield pins of audio and data connectors to the chassis grounds of their gear. Sometimes, this can cause noise problems in large systems where pieces of equipment are spread out around a facility because two ‘grounds’...
-
Page 10: Connector Pin-Outs
REM/EXP is used for this purpose. The REM/EXP port is wired according to the following chart. A pre wired expansion adapter for the 2-Bus is available when multiple units are bought or additional units are ordered for a facility already using one. -
Page 11: Specifications
Dangerous Music 2-Bus Manual Specifications Frequency response…………………. 1 Hz – 100 kHz within 0.1dB 0.0045% +4 dBu input level THD + Noise………………………… 0.0008% +22 dBu input level 0.0055% +4 dBu input level IMD60 4:1…………………………... 0.0015% +22 dBu input level Crosstalk Rejection………………….