Speck x.sum Reference Manual Download Page 21

Chapter 3

Operation Section

17

This modular plug connects the BB-03 Breakout Box to the multifunction I/O 
connector [13] on the rear panel of the X.Sum.

These balanced ¼"  TRS jacks are the left and right outputs of the Mix-B bus. 
The signal present at these jacks is adjusted by the Monitor [7] control on the 
front panel.

Another function of the breakout box connector will also let you connect your 
own external preamps to the X.Sum should you want to experiment with a 
more "colored" sound. The Mix-A (pre-fader) output jacks on the breakout 
box bypass the output circuits and the master level control of the Xsum so you 
can connect a pair of external preamps should you want to experiment with 
"character" sounds.

The DC power cable that comes from the power supply connects to this 8 pin 
circular connector. This connector and its respective plug is keyed so they will 
only fit in one direction.  For power supply installation instructions, refer to 
the Interface & Setup Section in this manual.

The following connector illustration and chart as shown in figure 6 represents 
the DC voltages to the 8 pin circular connector required to power the X.Sum.

4

7

2

8

1

6

3

5

PIN 1  

0 VDC 

PIN 2  

0 VDC

 

PIN 3  

+16.5 VDC 

PIN 4  

0 VDC 

PIN 5  

-16.5 VDC 

PIN 6  

 

PIN 7  

0 VDC 

PIN 8  

 

 

 

 

Figure 6

16. Mix-A (pre fader)

Ouput Jacks

17. D.C. Power Inlet

15. Mix-B Output Jacks

-16.5 VDC 

+16.5 VDC 

14. Breakout Box 

Connector

Summary of Contents for x.sum

Page 1: ...x sum 16 Channel Line Mixer Reference Manual speck electronics...

Page 2: ......

Page 3: ...k California 92028 If in our opinion the packing container is improper for return shipping we reserve the right to supply a new container at a minimal charge In the interest of improving Speck product...

Page 4: ...iii...

Page 5: ...and in perfect electrical order upon receipt To confirm this the mixer and power supply should be inspected for physical damage that may have occurred in transit Any damage should be reported to your...

Page 6: ...Sum mixer Using any other power supply or power source will most definitely damage the X Sum To avoid personal injury do not remove the top cover from the power supply and never operate the external p...

Page 7: ...BB 03 external breakout box that adds connections for the Mix B outputs and Mix A pre fader outputs The left and right Mix A pre fader outputs bypass the X Sum s master section and master level contr...

Page 8: ...ut channel level off Noise 22Hz 22kHz Residual Mix A and Mix B output noise Mix A output 16 channels routed faders off DC Power Requirements Mixer AC Power Requirements External supply Dimensions Mixe...

Page 9: ...ER MULTI PURPOSE I O RIGHT LEFT MIX S Typical of 16 MIX B MAIN MIX MIX ASSIGN S S S MONO MONO MIX B MAIN MIX MONITOR LEVEL PAN MAIN MIX BUS MIX B BUS INPUT CHANNEL MASTER SECTION RIGHT LEFT To Multi P...

Page 10: ...Chapter 1 Introduction Section 6 This page left intentionally blank...

Page 11: ...same room as the mixer It is important that the ventilation holes are not obstructed and that the unit is operated in free air to prevent overheating Allow a minimum of 4 100mm of clearance from all...

Page 12: ...red any unwanted signal which adversely affects the operation of the mixer or the mixing system This subject is discussed in Chapter 4 Electronic equipment such as power amplifiers power supplies espe...

Page 13: ...should be terminated with high quality connectors A plug or XL connector should make a positive connection to its respective mating jack and provide adequate strain relief to its cable All connectors...

Page 14: ...This page left intentionally blank Chapter 2 Installation Setup 10...

Page 15: ...techniques to achieve the best results for any particular situation Your ears should be your best gauge of how to adjust the settings on the X Sum to make the sound fit your requirements Before any a...

Page 16: ...onnectors 1 through 16 in this chapter Signal Flow Diagram Chapter 3 Operation Section 12 Figure 3 X Sum signal flow and reference designations INPUT LINE HEADPHONE LEVEL MONITOR OUTPUT LEVEL MASTER M...

Page 17: ...ed subgroup pair If the channel is operated in the mono mode or has a mono source connected to the Left Mono input jack then this control acts as a traditional pan The Mix Assign Switch allows an inpu...

Page 18: ...Select Switch 8 This switch simultaneously changes two monitoring functions of the Monitor Level Control 7 The first is that it selects the source for the headphone jack In the Out position the source...

Page 19: ...put is utilized to connect the alternate side of a stereo or dual voice source An input channel cannot function in stereo unless the right input is connected The 16 stereo input channels of the X Sum...

Page 20: ...d 1 4 TRS phone type connectors are the left and right outputs for the stereo mix bus The signal present at these jacks is adjusted by the Mix Master Control 5 on the front panel The configuration for...

Page 21: ...control of the Xsum so you can connect a pair of external preamps should you want to experiment with character sounds The DC power cable that comes from the power supply connects to this 8 pin circul...

Page 22: ...ire always replace the fuse with the correct value fuse as marked on the rear panel 2 amp for the 120V model or 1 amp for the 230V model This ON OFF power switch applies AC mains power to the PS 6 pow...

Page 23: ...pment When using a larger studio system it is recommended that a dedicated and isolated AC service be provided This service should have its ownAC wires isolated receptacle and breaker and not be share...

Page 24: ...least resistance That will most likely be your audio equipment and would result in unwanted buzzes or hums In order for any audio signal to get from Point A to Point B requires a cable with a minimum...

Page 25: ...electronic devices There are natural and man made sources of EMI that you can t do anything about These sources include radio TV and radar transmitters as well as motors lights and computers Even the...

Page 26: ......

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