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Manual DynaMaxx Model 2713 Version 1.0 – 6/2008 Designer: Wolfgang Neumann & Vincenzo Triolo This user‘s guide contains a description of the product. It in no way represents a guarantee of particular characteristics or results of use. The information in this document has been carefully compiled and verified and, unless otherwise stated or agreed upon, correctly describes the product at the time of packaging with this document.
Contents Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hook Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope Of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6 6 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Important Security Information Please note and retain this information. Carefully read and follow all of the safety and operating instructions before you use the machine. Be doubly careful to follow all warnings and special safety instructions noted in this manual and on the unit. The following information refers to modules built into the RackPack frame. Connections: Only use the connections as described. Other connections can lead to health risks and equipment damage.
Important Security Information Lightning: Before thunderstorms or other severe weather, disconnect the machine from wall power (but to avoid life threatening lightning strikes, not during a storm). Similarly, before any severe weather, disconnect ALL the power connections of other machines and antenna and phone/internet cables which may be interconnected so that no lightning damage or overload results from such secondary connections.
Hook Up Fitting A Module The fitting and/or exchange of modules should only be carried out by qualified persons. Please read the manual of the RackPack frame. It contains all information needed to fit a module as well as all safety and notes and warnings. If you don‘t have the manual at hand, you can download it like all SPL product manuals from our website http:// www.soundperformancelab.com.
Introduction Part of the SPL RackPack modular system series, the DynaMaxx probably is the most consequent interpretation of a „set & forget“ compressor concept. In keeping with the SPL design philosophy, it incorporates many features not found on standard compressors, and a unique control system makes is surprisingly easy to use. The DynaMaxx also offers a de-compression mode which may be used to counter the effects of overcompression in previously processed source material.
Rear Panel/Connections 1 65 */ .JYFS *OTFSU 4FOE Wiring 16 $POWFSUFS 0VUQVU 5 PS * / .
XLR Sockets, Transformers, Channel Split Rear Panel/Connections The DynaMaxx is fitted with one XLR input and two XLR outputs for balanced operation. Pin-wiring of all XLR sockets: Pin 1 = GND, Pin 2 = hot (+), Pin 3 = cold (-) Discrete balancing stages for both in- and output provide high common mode rejection and are capable of driving long cables (depending on the capacity of the cables and the following input balancing stages).
Control Elements COMPRESSION COMPRESSION 7- 4* ( The COMPRESSION control sets the compression intensity by varying both Threshold and Ratio simultaneously. The further the COMPRESSION control is turned clockwise (which lowers the Threshold and increases the ratio), the more processing is extended to lower level signals. The fully clockwise position is equivalent to a Ratio of 3:1.
MAKE-UP GAIN, GAIN REDUCTION LEDs Control Elements MAKE-UP GAIN 3&4 4 1 0. *0/ $ Turn the MAKE-UP GAIN control clockwise until the peak level of the input is the same as the peak level of the output. Use the GAIN REDUCTION LEDs for a precise adjustment. The control has a range of 20 dB.
Control Elements De-Compression Mode DE-COM. (De-Compression) 7- 4* ( The De-Compression function inverts the operation of the compressor to produce new dynamic headroom, which may be used to increase the dynamic range of a (previously overcompressed) signal. 0 3&4 4 1 0. *0/ $ %& $0.
De-Compression Mode, Effect Compression Control Elements If the Limiter (see page 14) is activated in DE-COMPRESSION mode, the intensity of processing is increased remarkably. Especially peaks are expanded more intensively. FX COM. (Effect Compression) 3&4 4 1 0. *0/ $ %& $0.
Control Elements Limiter LIM. (Limiter) 7- 4* ( In limiter mode the DynaMaxx only processes the peak levels but leaves, in contrast to the compressor mode, the gain structure of lowlevel signals unchanged. Limiter mode is useful when working with ‘clipping-sensitive’ media or units and it improves the utilisation of digital headroom as well as the bit resolution. 0 3&4 4 1 0.
ON, LINK Control Elements ON 3&4 4 1 0. *0/ $ Relay hard bypass circuits ensure signals to be directly switched from input to output in the case power failures – this “Power Fail Safety“ feature guarantees signal flow in any situation. 7- 4* ( 0 With the ON button you can turn the device on or off.
Control Elements LINK Mode/Configuring Modules Configuring Modules For Link Mode On the circuit board of the module you can see two twin dip switches (top side/approximately center). The switches are labelled with „ON“ and below with „1“ and „2“. Laterally, on the board, there are the labels „MASTER ONLY“ (left switch) and „MASTER SLAVE“ (right switch). ON ON 1 2 1 2 Master Module: Set both pins of the left MASTER ONLY switch to the top position (ON).
Technology And Applications This section deals with the technical background of the Dyna M axx and explains why we felt it necessary to do some things rather differently to the way other manufacturers do them. We will also explain the benefits of the D yna M axx design. Generally, the function of an audio compressor is to compress the dynamic range of the source signal by altering the gain of its signal path in response to the relative level of the signal as compared to an arbitrary threshold level.
Technology And Applications Full-Band versus Multi-Band Some compressors try to solve the problem of high frequencies being modulated by low frequency compression by moving to a split band system, so why don‘t we do that? Multi-band compression seems like a good idea to overcome the pumping effects caused by heavy bass compression also causing high frequency sounds to be pulled down in level.
Technology And Applications This behavior is sometimes described as ‘surfing’, and can be overcome by setting a lightly longer attack time, but now some peaks get through because they are faster than the compressor’s attack time.
Technology And Applications Release Time Automation Again, it is beneficial to look at what happens when the Release time is too short: In this case the compressor will restore normal gain conditions as soon as the peak has passed, and this rapid increase in gain is what we call breathing. Breathing is especially annoying during a part with soft strings or low level layered sounds – whenever a peak comes along, the strings duck down with it, only to pump up again when the peak is over.
Specifications Audio Frequency Response CMR 10 Hz - 200 kHz ›70 dBu (@ 1 kHz, 0 dBu input level, unity gain) THD 0,06% (0 dBu input level, unity gain) Noise (A-weighted) -93 dBu (Make Up Gain 0 dBu) Dynamic Range 115 dB Input XLR connection, electronically balanced, optionally transformer balanced Impedance Max. Input Level ca. 20 kOhm +21 dBu Outputs XLR connections, electronically balanced, Output 1 optionally transformer balanced Output 1 Impedance Max. Output Level ca.
Block Diagram 22 RackPack: DynaMaxx
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Lundahl Transformers I/O Transformer Option As an option, the DynaMaxx RackPack module can be fitted with input and output transformers from Lundahl. The transformer options can only be ordered by purchase, a later upgrade is not possible. Information On Lundahl I/O Transformers Transformers have a pleasant sound characteristic, especially the low end sounds rounder and more full-bodied. The top end benefits from a softer and silky atmosphere without being emphasized.
