Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong><br />
with<br />
Custom Audio Router<br />
_____<br />
www.rockman.fr<br />
www.rockman.fr
TABLE OF CONTENTS<br />
THE PROJECT ....................................................................................................................................... 3<br />
OBJECTIVES.......................................................................................................................................... 3<br />
PROTOTYPE: THE OCTO-LOOPER ........................................................................................................... 3<br />
DESIGN................................................................................................................................................... 6<br />
UNITS SELECTION .................................................................................................................................. 6<br />
MODULES MODIFICATIONS...................................................................................................................... 7<br />
ROUTER PRINCIPLE................................................................................................................................ 8<br />
PREAMPS SECTION ................................................................................................................................ 9<br />
EFFECTS SECTION ............................................................................................................................... 11<br />
CONNEXIONS....................................................................................................................................... 13<br />
LED'S DISPLAY.................................................................................................................................... 14<br />
THE MAKING........................................................................................................................................ 15<br />
ENCLOSURE AND LIGHTING SYSTEM...................................................................................................... 15<br />
POWER SUPPLIES ................................................................................................................................ 16<br />
AUDIO CARDS...................................................................................................................................... 17<br />
LOGICS CARD ...................................................................................................................................... 18<br />
LED'S INDICATORS .............................................................................................................................. 18<br />
INTEGRATION IN THE ENCLOSURE ......................................................................................................... 19<br />
AUDIO CORDS, SWITCHING CORDS, MAINS AND MIDI CONNEXIONS........................................................... 20<br />
THE RESULT........................................................................................................................................ 22<br />
OPERATING THE RIG.......................................................................................................................... 23<br />
PRESETS MANAGEMENT....................................................................................................................... 23<br />
SMART GATE AND MUTE ...................................................................................................................... 23<br />
STANDALONE UNIT............................................................................................................................... 24<br />
INSERT A MONO EFFECT....................................................................................................................... 25<br />
COMBINED WITH ANOTHER RACK .......................................................................................................... 25<br />
COMBINED WITH A COMBO.................................................................................................................... 27<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 2
Objectives<br />
THE PROJECT<br />
� The setup is based on a series of <strong>Rockman</strong> Modules, controlled by a Midi Octopus, and on a PGE2<br />
that replaces the classic Instrument EQ's found in every <strong>Rockman</strong> rig.<br />
� The global control unit - called Custom Audio Router - is a 19' 1U rack unit that has three main<br />
functions:<br />
- Optimize the control and routing of the Rockmodules<br />
- Allow using the PGE2 with several modules configurations<br />
- Combine the <strong>Rockman</strong> setup and an external 2-channels combo<br />
Prototype: the Octo-Looper<br />
� Before building this complex unit, I had built 3 years ago a first control device called "Octo-Looper".<br />
I had no PGE2 by the time, and its primary function was to interface my series of Rockmodules with<br />
my Boogie Combo.<br />
� Note that there was no Sustainor in this rig: my first approach was really to see each module as an<br />
effect added to the Boogie. The concept was to connect all the units in series, and to control each of<br />
them from the Octopus. Each channel of the Octopus opened or closed a true-bypass loop, based on<br />
a relay (the 8 th octopus switch being dedicated to the channel control of the combo).<br />
Principle of the Octo-Looper<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 3
The board of the Octo-Looper<br />
The Mini-Rack with its Octo-Looper (under the Midi-Octopus)<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 4
� Such a simple device has clear limits, the most critical being the useless Octopus combinations that<br />
a series looper cannot correct: connecting the preamps in series obliges to bypass one when the other<br />
is on, and assigning one Octopus channel per preamp makes some combinations useless.<br />
Replace the external combo in the above diagram by a Sustainor. You can use the GC in CLN2 mode,<br />
the DG for the DIST-like sounds, and the Sustainor for the CLN and EDGE modes. Now, check the<br />
situation from the Octopus point of view:<br />
A<br />
GC<br />
B<br />
DG<br />
C<br />
Sustainor<br />
D<br />
Channel<br />
Result<br />
Off Off Off Off Nothing: useless<br />
Off Off Off On Nothing: useless<br />
Off Off On Off CLN<br />
Off Off On On EDGE<br />
Off On Off Off DIST<br />
Off On Off On DIST: useless<br />
Off On On Off DG+SP: useless<br />
Off On On On DG+SP: useless<br />
On Off Off Off CLN2<br />
On Off Off On CLN2: useless<br />
On Off On Off GC+SP: useless<br />
On Off On On GC+SP: useless<br />
On On Off Off GC+DG: useless<br />
On On Off On GC+DG: useless<br />
On On On Off GC+DG+SP: Useless<br />
On On On On GC+DG+SP: Useless<br />
Out of 16 possible switches configurations, only 4 of them are used! With this system, all the channels<br />
are used to turn the modules on and off, and there is no channel left for the options footswitches.<br />
� This critical issue is the main reason why I have decided to build a new device that would not only<br />
switch the modules on or off, but also route the signal in an optimal manner and control the options<br />
footswitches of the Rockmodules.<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 5
Units selection<br />
DESIGN<br />
� Apart from the PGE2, I have kept 8 modules, selected between the 71 modules I have purchased. I<br />
could live with less, and don't really need more!<br />
- 1 Sustainor 200 (original Double-IC)<br />
- 1 Stereo Chorus<br />
- 1 Stereo Echo<br />
- 1 Stereo Chorus/Delay<br />
- 1 Distortion Generator (one of the last units made by SR&D)<br />
- 1 Guitar Compressor<br />
- 1 Smart Gate<br />
- 1 Midi-Octopus (a rare late blue-faced type)<br />
� A few comments can be useful:<br />
- The PGE2 makes the classic EQ's useless. It's only a matter of connexion and signal routing,<br />
as developed below.<br />
- Keeping a Chorus/Delay is interesting to add other sounds to the non-programmable Stereo<br />
Chorus, and for its reverb capability.<br />
- The DG has more balls than the Sustainor, and is a cool addition for mighty distortion sounds<br />
- The Guitar Compressor is probably the less useful unit when you have a Sustainor, but in<br />
case you want to use the Semi-CLN feature of the Sustainor, the GC can be used for the<br />
straight CLN sound. Of course, the GC is cool when you also use a tube combo beside the<br />
<strong>Rockman</strong> rack.<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 6
Modules modifications<br />
� The first modification I made on my gear was adding an pre-distortion loop to my DG: the three<br />
bands built-in EQ is really poor compared to a real 12 or 14 bands EQ. I have later added a built-in<br />
Smart-Gate module, cloned from the Sustainor's circuit. This mod requires and additional board<br />
installed inside the DG:<br />
The additional board includes a bypass for the built-in compressor of the DG. I don't use this feature in<br />
the present rack.<br />
� The second important modification was to add a footswitch to the Sustainor, so that the 4 channels<br />
can be used without manual switching. This mod is based on an additional 4053 JFET switches chip:<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 7
Router principle<br />
� The router must basically control a series of switches that will send the audio signal through the<br />
proper path: the series path of the first looper had to be replaced by a combination of parallel and<br />
series routing, with the proper A/B switches and bypass loops.<br />
The router must also control a number of modules footswitches corresponding to sound options<br />
(Sustainor channel, Long Chorus, Sweep Stop, etc…).<br />
� Doing that with series connections and by connecting directly several Midi Octopus to the 7<br />
modules, plus the external preamp, would have taken 19 Octopus channels, i.e. three Midi Octopus<br />
with a lot of lost combinations.<br />
The router includes therefore a logic card that converts the 8 Octopus switches position (0 or 1) into<br />
switching control signals used to turn the 19 control points of both audio cards and modules<br />
footswitches. One Octopus only is necessary, and all the combinations are used.<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 8
Preamps section<br />
� The first section of the rig corresponds to the preamps: Sustainor, DG, GC and External. The global<br />
structure combines parallel and series connexions:<br />
This structure was then developed as follows:<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 9
A few comments about this preamps section:<br />
1 - The Sustainor and the DG are seen as two halves each (pre and post distortion)<br />
2 - The Sustainor has two switches that allow selecting one of its four modes (not shown here)<br />
3 - The two halves of the PGE2 are connected to the proper sends and returns, depending on<br />
which branch of the structure is active<br />
4 - A Tuner/Mute relay is added just after the main input. This relay is controlled by a manual<br />
front switch, not by the Octopus.<br />
Note that instead of relay hard-switches, the Sustainor and the DG's are selected by J-FET electronic<br />
switches. Their inputs are not switched, and an input buffer is installed to prevent impedance issues.<br />
This option was selected for a perfectly silent switching, knowing that true-bypass was not necessary<br />
here.<br />
On the other hand, since the external loop is designed for an all-tubes combo, it was necessary to<br />
have relay-based true-bypass switches in the GC+Ext. branch.<br />
� The preamps section has thus 5 control points. With the two footswitches (Channel and Alt) that<br />
control the Sustainor's modes, the preamps section allows 8 different configurations:<br />
- Sustainor (CLN2, CLN, EDGE and DIST)<br />
- DG<br />
- GC<br />
- GC + External<br />
- External<br />
� The objective is to select one of these 8 combinations with 3 Octopus channels only. The truth table<br />
to implement is the following (note that when an Octopus channel's LED is lit, the switch is closed:<br />
that's a logical "0", not a "1"):<br />
Sus. CLN2 Sus. CLN Sus. EDGE Sus. DIST DG GC GC+Ext Ext<br />
A 1 1 1 1 0 0 0 0<br />
B 1 1 0 0 1 1 0 0<br />
C 1 0 1 0 1 0 1 0<br />
R2-R4 0 0 0 0 0 1 1 1<br />
J1 1 1 1 1 0 0 0 0<br />
R3 0 1 1 0 0 1 1 0<br />
R5 0 0 1 1 0 0 1 1<br />
R6 1 1 1 1 1 0 1 0<br />
Channel 1 1 0 0 1 1 0 0<br />
Alt 1 0 1 0 1 0 1 0<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 10
The grey cells are whatever they want. Their values were selected to optimize the logical circuit as<br />
follows:<br />
� The channel D is dedicated to the Rhythm/Lead switching. It is connected to 4 switches:<br />
- Sustainor's Rhythm volume<br />
- DG's Lead Boost<br />
- GC's Lead Leveller<br />
- External preamp's channel<br />
Effects section<br />
� The effects section starts with the Smart Gate, and is made of the Stereo Chorus followed by a<br />
Chorus/Delay and a Stereo Echo.<br />
� The Stereo Chorus and the Stereo Chorus/Delay both have one input and two outputs. The only<br />
way to use them together is to use only the processed channel of the C/D, in series with the<br />
processed channel of the SC. The non-processed channel can thus be picked-up from the SC:<br />
� Since these effects can be used in the FX Loop of the external all-tubes combo, some relay-based<br />
true-bypasses were necessary:<br />
- The Smart-Gate is placed in a loop, controlled manually by a front-switch<br />
- The two chorus units are placed in the same stereo loop: when none of them is used, the<br />
loop is closed.<br />
- The Stereo Echo has its own stereo true-bypass loop<br />
� The question with the chorus units was then to determine which combinations were useful. There<br />
were 3 Octopus channels left, knowing that the Stereo Echo uses one and that the preamps section<br />
uses 4 of them. 3 channels make 8 possibilities, the first one being of course "no effect".<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 11
� I have therefore decided no to the use the Alt-Mix switches of the CD and SC, and have thus<br />
selected the 8 following possibilities (Dry sound + 7 chorus sounds):<br />
Dry SC Normal SC Long SC Normal + Delay SC Long + Delay CD Chorus SC Sweep Stop CD Delay<br />
E 1 1 1 1 0 0 0 0<br />
F 1 1 0 0 1 1 0 0<br />
G 1 0 1 0 1 0 1 0<br />
Chorus 0 1 1 1 1 1 1 1<br />
SC Bypass 1 1 1 1 1 0 1 0<br />
SC Long 0 1 0 1 0 1 0 1<br />
Sweep Stop 1 1 1 1 1 1 0 0<br />
CD Bypass 1 0 0 1 1 1 0 1<br />
CD Delay 0 1 1 0 0 1 1 0<br />
The corresponding logical circuit looks as follows:<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 12
Connexions<br />
� The rack must have a guitar input, and two stereo outputs.<br />
� I have added a tuner output jack: there is a manual frontswitch that both mutes the rack and sends<br />
the input guitar signal to this tuner output (the audio switching being provided by a relay).<br />
� The external combo requires a send and return pair of jacks (connected to its guitar input and send<br />
jack), plus a channel footswitch jack. A fourth jack is necessary for the return jack (that corresponds to<br />
the input of its power amp). I have therefore added an active mixer that generates a mono output from<br />
the two stereo outputs of the Rockmodules.<br />
� The router has also a basic FX Loop set between the preamps section and the effects section. It<br />
didn't cost much (2 jacks), and allows connecting any mono external device (a wah, a phaser, etc…).<br />
This loop is not controlled by the Router, it's only an insert connexion.<br />
� Since the rack enclosure was large enough, I have decided to install an Ebtech Line Shifter,<br />
connected to a pair of XLR sockets. I can thus use either the unbalanced outputs directly connected to<br />
the Rockmodules, either the balanced outputs of the Ebtech Line Shifter.<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 13
LED's display<br />
� The Octopus has LED's connected to each of its 8 channel. Yet, it is not really convenient, when<br />
you're on stage, to remember that A=On, B = Off and C = On corresponds the GC while A=Off, B=On<br />
and C=Off corresponds the Sustainor in Edge mode!<br />
� I have thus added a LED's display unit, based on 74138 decoders, that clearly indicates which<br />
mode is active. The LED's are organized in 2 blocks:<br />
- The left block has 8 LED's (A to H), each LED corresponding to one of the preamps mode<br />
- The right block has 8 LED's too, the 7 first LED's corresponding each to a chorus mode and<br />
the 8 th indicating that the Stereo Echo is on.<br />
16 holes in the frontplate for the LED's indicators<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 14
Enclosure and lighting system<br />
THE MAKING<br />
� The 1U rack enclosure I have used comes from a Furman PL8 power conditioner (it was too deep<br />
for the rack I had originally purchased it for). This power conditioner was equipped with a cool LED's<br />
lighting system that I have kept.<br />
All I had to do was to replace the original front panel by a new one, and to cover the rear side by an<br />
additional rear plate. I had these done by Schaeffer AG (www.schaeffer-ag.de):<br />
The new front panel and the original Furman panel.<br />
� For the final touch, I have used some sticker-letters provided by Vince from RMC when he sent me<br />
my 6U rack.<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 15
Power supplies<br />
� The power supply section is in fact made of:<br />
- A HF filter placed between the mains plug and the transformers<br />
- A 3W, 5VDC power supply for the logic circuits<br />
- A separated 5W, 5VDC power supply for the relays<br />
- A balanced +8V/-8V power supply for the audio switches and the buffers<br />
- A 12VAC transformer for the Furman lighting system<br />
� The 230VAC comes through a first IEC socket. I have added a second socket before the main<br />
switch: I can thus connect another unit (rack or combo) without a power strip.<br />
� The modules are powered by an IEC cord and a home-made 12 outlets power strip.<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 16
Audio cards<br />
� The preamps audio switches is the biggest unit of the router. It has 6 jacks, 7 relays, a 4053 JFET<br />
switches IC plus a TL072 used for the Sustainor and DG's input buffer and the active stereo to mono<br />
mixer.<br />
� The effects audio bypass is smaller: 5 relays and 4 jacks only.<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 17
Logics card<br />
� Like all the logics cards, a few IC's, no discrete components and a lot of very thin tracks on the<br />
PCB:<br />
LED's indicators<br />
� This unit is made of two boards: the LED's themselves, and the decoders and inverters that drive<br />
them on a second PCB. I have superglued the two PCB's to get a compact assembly:<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 18
Integration in the enclosure<br />
� A complete 1U rack was necessary to host all these cards. No major issue during the wiring: only<br />
patience. These two pictures were shot before and after the wiring operations<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 19
Audio cords, switching cords, mains and midi connexions<br />
� There's a total of 33 audio cords, 10 switching cords, 8 Octopus channels cords, 2 midi cords and<br />
one power cord between the router and the Rockmodules. All these cords go through the bottom plate<br />
of the enclosure: it saves space, and there is no need for costly connectors.<br />
� I have soldered the audio cords and the switching cords directly on the boards inside the router,<br />
and cut rectangular holes in the bottom plate of the enclosure to let them fall towards the modules:<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 20
� The same technique was used for the mains cord, the two midi connectors, and the eight-jacks<br />
spider that brings the Octopus switching signals to the logic card:<br />
� It was necessary to identify all these cords one way or another. I have used colour-coded rings:<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 21
The result<br />
� The rig is housed in a 6U rack made by Vince from RMC ( www.rackmountconcepts.com ). Here's<br />
the rear side, without and with the rear panel:<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 22
Presets management<br />
OPERATING THE RIG<br />
� The Octopus and the PGE2 can store 99 presets.<br />
The Midi connexions of the two devices are linked, so that the Midi pedalboard (<strong>Rockman</strong> Midipedal or<br />
any similar floorboard) can send the same Program Changes orders to both (provided the Midi<br />
channels are correctly set).<br />
� Defining a preset corresponds to:<br />
1 - Selecting a preamp configuration<br />
Mode<br />
(Front LED’s)<br />
Octopus<br />
A<br />
Octopus<br />
B<br />
Octopus<br />
C<br />
Rhythm/Lead<br />
(Octopus D)<br />
A Sustainor CLN2 0 0 0 Rhythm Volume<br />
B Sustainor CLN 0 0 1 Rhythm Volume<br />
C Sustainor EDGE 0 1 0 Rhythm Volume<br />
D Sustainor DIST 0 1 1 Rhythm Volume<br />
E<br />
F<br />
Distortion<br />
Generator<br />
Guitar<br />
Compressor<br />
1 0 0 Lead Boost<br />
1 0 1 N/A<br />
G GC + Ext 1 1 0<br />
Lead Leveller + Ext<br />
Channel<br />
H Ext 1 1 1 Ext. Channel<br />
2 - Tweaking the pre and post EQ’ing on the PGE2<br />
- Modes A and B: the second half of the PGE2 is on, the first half being off<br />
- Modes C and D: the first half of the PGE2 is in the Sustainor’s pre-distortion loop, the second half<br />
being the post-distortion EQ<br />
- Mode E: the first half of the PGE2 is in the DG’s pre-distortion loop, the second half being the postdistortion<br />
EQ<br />
- Mode F: the first half of the PGE2 is combined with the GC for any clean-type sound and volume.<br />
The second half is bypassed<br />
- Mode G: the first half of the PGE2 is placed between the GC and the external preamp, as a predistortion<br />
EQ, the second half being the post-distortion EQ<br />
- Mode H: the PGE2 is bypassed<br />
3 - Selecting a chorus, delay and echo configuration<br />
Mode (Front LED’s)<br />
Octopus<br />
E<br />
Octopus<br />
F<br />
0 Dry 0 0 0<br />
1 SC Normal 0 0 1<br />
2 SC Long 0 1 0<br />
3 SC Normal + CD Delay 0 1 1<br />
4 SC Long + CD Delay 1 0 0<br />
5 CD Chorus 1 0 1<br />
6 SC Sweep Stop 1 1 0<br />
Octopus<br />
G<br />
7 CD Delay 1 1 1<br />
The CD Chorus can be set in fast mode. The last switch of the Octopus (H) controls the Stereo Echo.<br />
Smart Gate and Mute<br />
� A manual switch on the front panel both mutes the rack and sends the signal to a Tuner output.<br />
� The Smart Gate is turned off or on by a front switch. This feature is based on a true-bypass loop.<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 23
Standalone unit<br />
� The rack can be connected to a mixer either with the jack outputs (for shorter cords, e.g. in a<br />
homestudio), either with the XLR balanced outputs (for longer cords, e.g. on stage).<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 24
Insert a mono effect<br />
� The rack has a basic mono insert loop, placed between the PGE2’s output and the Smart Gate’s<br />
input. It can be used to insert a wah, a phaser, or basically any stompbox or external effect.<br />
� This loop is not midi-controlled: if the external effect has no midi input, it cannot be controlled from<br />
the midi pedalboard.<br />
Combined with another rack<br />
� My additional rack is a 3U unit that has:<br />
- A midi programmable PSA 1.1 from Tech 21<br />
- A midi programmable Xpression from Rocktron<br />
- A Samson VHF wireless receiver<br />
� The connections of this rack can be used in several configurations, thus providing a total flexibility:<br />
- It can be used with or without the wireless system: pluging a jack in one of its inputs<br />
disconnects the Samson system.<br />
- The wireless system can be used either with the pair PSA+Xpression, either separately with<br />
the main <strong>Rockman</strong> rack.<br />
- The Xpression has a dedicated input jack that allows using this unit for an acoustic guitar.<br />
- The rack can be used as a standalone unit or as an extension of the main <strong>Rockman</strong> rack.<br />
� The two racks (<strong>Rockman</strong> 6U and additional 3U rack) can be combined, allowing endless<br />
programmable combinations between the <strong>Rockman</strong> sounds, the flexibility of the PSA (analog<br />
simulation of any type of amp) and all the effects of the Xpression (chorus, flanger, phaser, tremolo,<br />
autopan, delay, reverb).<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 25
The connexions of the 3U rack are not made directly, as represented on this simplified diagram: they<br />
are in fact centralized in a custom switching unit that organizes the connexions to match the actual<br />
configuration. All in all, combining the two racks is equivalent to the following representation:<br />
� The PSA can be used straight (Mode H of the router) or combined with the GC and the PGE2 (pre<br />
and post-EQ’s). It can be used with the <strong>Rockman</strong> chorus units and/or Stereo Echo, as well as with the<br />
effects of the Xpression. On the other hand, the <strong>Rockman</strong> preamps can be used with the effects of the<br />
Xpression.<br />
The PSA and the Xpression being fully programmable and Midi controlled, the setup has a total<br />
flexibility and endless possibilities.<br />
� Note that when the PSA and the Xpression only are used, the <strong>Rockman</strong> units are true-bypassed by<br />
their relay loops: the set-up is really equivalent to a PSA and an Xpression only, i.e. to the 3U rack<br />
alone.<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 26
Combined with a combo<br />
� The mono output allows connecting the rack to my Boogie combo with 4 short jack cords. The setup<br />
is then self-amplified, but loses its stereo features.<br />
� The preamps modes that are based on the combo’s preamp are modes G and H:<br />
Mode G: GC + PGE2 pre-EQ + Combo + PGE2 post-EQ<br />
Mode H : Straight Combo preamp (no compression, no EQ)<br />
� The channel D of the Octopus controls the channel of the combo. In Mode G, the same switch<br />
activates the Lead Leveller of the GC when the combo is in lead mode.<br />
� When the basis sound is set, one can add some chorus and/or delay and echo to the all-tubes<br />
sound of the Boogie.<br />
� Note that the GC, the PGE2 are controlled by true-bypass loops, like the Smart Gate, the two<br />
chorus units and the Stereo Echo. When none of these devices are used, the sound of combo is really<br />
straight, all the add-ons being true-bypassed: this is important with an all-tubes combo.<br />
© www.<strong>Rockman</strong>.fr 2009 <strong>Ultimate</strong> <strong>Rockman</strong> <strong>Setup</strong> Page 27