Products Catalog - Signal Audio WorkShop

TUBE COMPRESSOR
Gainrider
Class A,
Stereo All
Tube Limiter
Compressor
and Dynamic
Range
Controller
This is our state of the art Tube Compressor, unequal in its design and specification. After 6
years of painstaking development, Inspired by the early tube compressor topologies like the
Fairchild 670 Tube Compressor, we decided to embrace the variable bias topology as our
signal path with pure tubes and transformers circuitry and no solid state components in the
signal path. We combined these early giant compressors signal path topology with a new, up
to date control mechanism for the side chain. In fact, in order to innovate and achieve the
Gainrider’s outstanding capabilities we have revolutionized the SIDE CHAIN system with
unique features, superior reaction and accuracy that can provide sophisticated dynamic range
processing. Our side chain psycho-acoustic approach features conventional Attack and
Release functions, working alongside intelligent Crest Detectors that respond to complex
music signals and not just the global levels, riding fine nuances in music like our ears do. The
M.S (Mid Side Compression) is an extra feature that encodes stereo information to separately
treat the center and sides information of a stereo signal. The Gainrider tube compressor is
handcrafted with unprecedented attention to detail both internally and externally. The
compressor features an embedded black panel with shimmering internal lettering and smooth
gain reduction display. All these features take this uncompromised structure to the highest
level of sonic excellence.
Specifications:
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Input Impedance: 10Kohms Balanced, (PIN 2 HOT).
Output Impedance: >500 ohms Balanced, (PIN 2 HOT).
MAX Gain: 28 db.
MAX Input level: 36dbu for 1% THD (WITH NO GR).
MAX Output level: 32dbu for 1% THD (WITH NO GR).
Noise Floor: -91db @ 22-22khz typical.
Distortion: @ Unity gain 1Khz +4dbu INPUT,
THD+N=0.058% (WITH NO GR).
Frequency Response: -/+1db from 20HZ to 20Khz.
Attack Time: 0.2 to 70msec.
Recovery Time: 0.07 to 2 sec.
Operating Voltage: 230Vac @ 50Hz / 115Vac @ 60Hz.
Power consumption: 40watts.
Dimensions: H=3 Rack Units, W=19” ,D=13.4”.
Features:
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3 custom wound audio
transformers for each
channel.
3 tube balanced stages for
each channel.
All CLASS A balanced
topology.
Metal film resistors.
Audio grade capacitors.
1. DC-T.H=DC-THRESHOLD: The input signal exceeded above this controlled threshold level goes into
compression.
2. LOG-RATIO: Being a variable bias compressor means that the ratio of the signal being compressed
gets higher with the amount of gain reduction. Therefore this knob adjusts the ratio’s slope angle
(from soft compression - to hard limiting).
3. ATTACK time: Sets the time it will take the VCA’S RMS DETECTOR to accomplish its desired
compression.
4. RECOVERY time: Sets the time it will take the VCA’S RMS DETECTOR to recover from compression.
5. CREST-LEVEL: In any regular compressor, having an attack time means also that some amount of fast
transients entered the VCA will not develop gain reduction. The longer the RMS ATTACK the more
short peak transients missed by the VCA, for these purpose we implemented a CREST DETECTOR that
detects those peaks and allows you to mix them with the RMS signal on its way to the VCA and you
chose their level of mixing from 0% to 300% (why 300%? hear it ...)
6. CREST-RECOVERY: Enables you to give the CREST signal a private recovery time.
7. OUT-LEVEL: Allows you to amplify the
output level in order to makeup for gain
loses from compression.
8. IN-LEVEL: This is a variable input
attenuator for both sides, ranging from
-20db to 0db, enables you to set
compression amounts to both sides
simultaneously or altering the amount of
signal to drive this tube instrument.
9. BYPASS: It’s a HARD WIRED BYPASS switch for channel A.
10. ST-LINK: This switch engages both channels VCA signals for operating on stereo signals (It still means that
both sides need to be tuned equally).
11. MODE: This switch affects the signal path, it has two operations. NRM MODE: both channels A and B are
separate. This means, channel A is left and B is right, or dual mono, (just like any other normal
compressor). M.S MODE (used only with stereo signals) means that channel A is now compressing the
center of the stereo signal therefore it will be called L+R. And channel B will compress the sides of the
stereo signal therefore it will be called L-R. (as seen on front panel). The output levels unlike any other
compressor with M.S mode, allows you to tune the level of the MONO versus SIDES and controlling stereo
image’s width.
12. GAIN REDUCTION Meter: Peak meter with 21 segments especially designed to deflect these unique fast
VCA movements.
signal chain:
side chain:
MIC PRE-AMPS
CH SERIES
Vacuum tube
CLASS A
microphone
pre amp
custom Mumetal
transformers.
A unique piece
of equipment
with Tube hart
and analog
soul.
The CH series Mic pre-amp is a result of a two year development period in which we
achieved its outstanding Sonic capabilities. These revolutionary tools outstand any other in
today’s market, and provide innovative ways of manipulating audio signals like never
experienced before.
Like all our products, the CH Mic pre`s are meticulously hand crafted in our workshop. For
the input stage we designed a custom Mu-metal input transformers for maximum signal
linearity along with sonic benefits of the transformer’s character. We specially designed a
Tube CLASS A input stage for its second harmonic performance in order to match the needs
of digital recording to the warm sound of analog equipment.
In order to take this uncompromised structure to the highest level of sonic excellence the
signal path stages are made pure CLASS A with tubes and transformers for each channel.
All signal stages are constructed from the highest audio grade materials: metal film
resistors, audio grade capacitors etc`.
These features assure maximum sonic performance and a big smile on your face!
Specifications:
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Features:
Input Impedance: 200 Ohms Balanced, (PIN 2 HOT).
Output Impedance: >50 Ohms Balanced, (PIN 2 HOT).
MAX Gain: 62 db (typical).
MAX Input level: +2dbm (for THD of < 2%).
MAX Output level: +27dbm/600 ohm (on balanced output).
Noise Floor: -91db @ 22-22khz (typical).
Frequency Response: 20-20kHz +/- 0.3db, 15-40kHz +/2db.
• Gain: 62db continuously variable from +22 to +62db.
• Dimensions CH-8: H=3 units, W=19”,D=13.4”.
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CH-8 External massive regulated power supply unit:
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• Output voltages: +300 vdc,+50.4 vdc,+48 vdc,+/-24 vdc.
• Operating Voltage: 230Vac @ 50Hz / 115Vac @ 60Hz.
• Dimensions Psu-15: W=5.5”, H=4”, D=11”.
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Phantom power (+48 V) switches.
Phase reverse & -18db pad
switches.
200 ohm microphone input stepup transformers in Mumetal
cases.
12AX7 tubes CLASS A design
input stage.
Fully passive 12db/oct 5-state
high-pass filters +
bypass.
Filter frequencies: 65Hz, 110Hz,
180Hz, 250Hz &
450Hz.
Solid state transformerless
design balanced output stage
MP-4
4-channel
Solid-state
Transformerless
Microphone
Pre-amp
Although tubes and transformers will often complement digital sound, they should not be
the only color on your paint-box! Using a transparent Mic pre-amp followed by a “colored”
component will leave only the latter’s impact on the sound. Since “colored” compressors
are widely used, there was a need for a transparent Mic pre-amp. Even when recording
more dynamic material, some engineers route their signal through compressors with no
gain reduction, just for the “color”. An accurate, transparent, solid-state Mic pre-amp
doesn’t have to sound “cold”, if it’s well designed. As with our other products, this unit
performs extremely well in the ultrasonic range we find crucial for a rich, detailed and
focused sound image. As a matter of fact, it’s almost flat up to 120Khz. With a clear midrange, fast rise time and “tons” of headroom, the MP-4's rich and punchy sound is very
popular in drum and guitar recordings.
Features & Specifications:
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Mic input impedance 300 ohm & 600 ohm on balanced out.
Gain: continuously variable from +22db to +60db.
-20 db pad SW, +48v phantom power switch, faze switch.
Passive 2-state 12db/oct high-pass filters 75Hz, 160Hz & off.
Frequency response 10Hz-40 kHz +/- 0.4 db/120khz-2db!
Maximum output level: +27dbm on balanced out with 600 ohm load.
Minimum signal path design (for maximum signal transparency).
Only 2 dual-op amps per channel (balanced in to balanced out).
PRE & MONITOR CONTROLLER
CH2-M
Tube
Microphone pre
amp with DI
and Monitor
controller.
The CH2-M combines our 2 channel tube mic pre (CH-2) and its outstanding Sonic capabilities
with DI inputs and a passive MCRC (Master Control Room Console).
This unit states a revolutionary approach to a “non-console working environment”, offering a
high-end, cost-effective solution for most modern computer-based personal project studios.
This unit covers all analog I/O's of a small DAW (Digital Audio Workstation):
Mic/line/instrument and monitor's outlet, all offer extreme audio performance in a unique
solution. The CH2-M features a special, passive control-room source select & rotary stereo
fader for CR level, connected to a dual speaker select SW. This allows plugging the pre-amp's
rich, fat, ‘tuby’ sound to a computer while transparently monitoring it.
The passive monitoring route of the MCRC enables pure listening to your DAW without the use
of any low-grade “traditional” analog console’s channels & summing losses, and without a
hard wired D/A’s output playing its self-noise through the monitor system.
Specifications:
Features:
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• Phantom power (+48 V) switches.
• Phase reverse & -18db pad switches.
• Custom 200 ohm microphone input step-up
transformers in Mumetal cases.
• 12AX7 tubes CLASS A design 62db gain
amplifier.
• Fully passive 12db/oct 5-state high-pass
filters + bypass.
• Filter frequencies: 65Hz, 110Hz, 180Hz,
250Hz & 450Hz.
• Solid state transformerless design balanced
output stage.
Input Impedance: 200 Ohms Balanced, (PIN 2 HOT).
Output Impedance: >50 Ohms Balanced, (PIN 2 HOT).
MAX Gain: 62 db (typical).
MAX Input level: +2dbm (for THD < 2%).
MAX Output level: +31dbm/600 ohm (on balanced output).
Noise Floor: -70db @ 22-22 khz (typical).
Frequency Response: 20-20kHz +/- 0.3db, 15-40kHz +/- 2db.
Gain: 62db continuously variable from +22 to +62db.
Operating Voltage: 230Vac @ 50Hz / 115Vac @ 60Hz.
External massive regulated power supply unit.
• Output voltages: +300 vdc,+50.4 vdc,+48 vdc,+/-24 vdc.
• Operating Voltage: 230Vac @ 50Hz / 115Vac @ 60Hz.
• Fuse Type: 2 Amp slo-blo for 120 Volt mains.
1 Amp slo-blo for 230 Volt mains.
• Dimensions CH2-M: H= 3 units, W= 19”,D=5”.
• Dimensions Psu-15: W=5.5”, H=4”, D=11”.
MP-2
2 -channel Solidstate
Transformerless
Mic Pre-amp
w/D.I and Monitor
controller.
This unit combunes 2 MP-4 Mic pre channels, 2 class-A DI inputs & a passive MCRC (Master
Control Room Console).
This combined MCRC unit states a revolutionary approach to a “non-console working
environment”, offering the high-end, cost-effective solution for most modern computer-based
personal project studios. This unit covers all analog I/O's of a small DAW (Digital Audio
Workstation): Mic/line/instrument and monitor's outlet, all offer extreme audio performance in a
unique solution.
The unit features a
special, passive control-room source select & rotary stereo fader for CR level, connected to a dual
speaker select SW. This allows the user to plug the pre-amp's rich, fat, ‘tuby’ sound to his
computer while transparently monitoring it.
The passive monitoring route of the MCRC enables pure listening to your DAW without the use of
any low-grade “traditional” analog console’s channels & summing losses and without a hard wired
D/A’s output playing its self-noise through the monitor system.
Features & Specifications:
Control-room section:
Pre amps:
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300 ohm mic input impedance & 600 ohm on balanced out.
Class-A discreet 10M ohm DI inputs on channels 1&2.
Gain: continuously variable from +22db to +60db.
-18 db pad SW, +48v phantom power switch, phase switch.
Passive 2-state 12db/oct high-pass filters 75Hz, 160Hz & off.
Frequency response 10Hz-40kHz +/- 0.4 db/120khz-2db!
Maximum output level: +27dbm on balanced out with 600 ohm load.
Minimum signal path design (for maximum signal transparency).
Only 2 dual-op amps per channel (balanced in to balanced out).
All internal routing functions are passive & terminated.
3 stereo source input select.
Mono sum switch for monitoring L+R.
Dim switch.
Control room level knob w/large & accurate
scaling.
• Speaker select for 2 pairs of monitors.
• Fully passive I/O ¼” connectors (back panel).
• Specially designed for monitoring &
maximum signal transparency.
SUMMING UNIT
passivmix
Fully passive
16/2
summing
unit.
How many times have you thought about buying an analogue mixing console and while digging
into that option you find out that it can only be accomplished with a considerable money
investment (in the console itself, a wiring system, maintenance, large studio space, etc`). This is
why we came up with the idea of putting an analogue summing buss in a box followed by a tube
or transistorized pre amp that functions as a summing amplifier. This combination of simplicity in
signal path offers purity and separated stereo image with unparalleled results, even when
compared to top quality mixing consoles!
This unit sums16 line inputs (expendable to 32) from your D/A converter into 1 balanced stereo
pair. The summing process is accomplished by two balanced passive mix busses, one for the left
and one for the right channel. Passive summing is a process that by nature attenuates the signal
therefore a summing amplifier is required. That’s why the mix out signal from this unit appears as
a Mic level output and should be connected to a microphone preamp that will serve as a summing
amplifier. This means you can choose your summing amplifier (tube/transistorized)! Furthermore
you can choose your summing headroom in order to squeeze and warm up your mix with a tube
preamp or go loose and clean by working on a higher headroom setup.
The analogue mix-out from the preamp out can then be recorded on a separate 2-TK recorder so
you won’t have to "bounce" your mix back to the computer and the conversion of your mix into
16bit 44.1Khz will be preformed on an analogue tube summing buss instead.
Specifications:
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• Pan switch for inputs 1-4 (hard panned/dual
center).
• Buss link connection allows cascading two units for
a 32 inputs summing system.
• Special Phantom +48V D.C. blocking mechanism on
Mix outputs for protecting your D/A’S analog line
out’s from preamp’s Phantom power.
• 24K gold plated ¼” line input sockets.
16 balanced line inputs via 1/4" TRS connectors.
Line in impedance: 10K (balanced).
2 balanced Mic level Mix outputs via XLR connectors.
Mix out impedance: 200 ohm balanced.
Special rotary "Headroom Select" knob allows you to
select the optimal driving level into the preamp's Mic in.
• Headroom modes are: 0db,-6db,-12db.
Master Control Room Console
MCRC
Fully passive
monitor controller.
Controlling your monitor environment is what this unit is all about. Specially designed to meet
today’s needs in a non console working environment, including all basic functions needed in small
DAW - source select, mono, cut, dim, monitor level, monitor select & T.B.
This genuine tool allows you to maximize your monitoring capabilities while preserving maximum
purity of signal path. The MCRC features a special, passive control-room source select & rotary
stereo fader for CR level, connected to a dual speaker select SW to allow maximum signal
transparency between your DAW and monitoring system. The passive monitoring route of the
MCRC enables pure listening to your DAW without the use of any low-grade “traditional” analog
console’s channels & summing losses, and without a hard wired D/A’s output playing its self-noise
through the monitor system. MCRC enables you to use maximum output level of D/A converters
and therefore hearing your monitors at maximum bit rate at all times.
Features:
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3 stereo source input select.
Mono sum switch for monitoring L+R.
Dim switch.
Control room level knob with large & accurate scaling.
Talk-back/slate system with internal TB mic.
Speaker select for 2 pairs of monitors.
Fully passive I/O ¼” connectors (back panel).
HEADPHONE CONTRILLING UNIT
OMNIQUE
4 Channels
Headphones &
Talkback
Controller
There are only few instruments out there
that can be titled as true problem
solvers. This genuine unit entitled its
name as a true problem solver for
commercial studios that want to offer
the benefits of four separate headphone
mixes in a live recording situation and a
Talkback Controller. The Omnique offers
enhanced live recording convenience to
your valued clients.
Features:
• 4 stereo balanced I/O channels with level
control + individual or omni T.B feature.
• External T.B switch + “T.B command” output
for synchronizing with other units.
• On board Phones monitoring selector for each
of the four headphone power amp outputs
(requires a return feed from power amp out to
the unit’s "Phones Signal Input").
The Workshop
Signal Audio Workshop manufactures hi-end equipment for the pro audio industry. Our
profound understanding of the industry needs, combined with vast knowledge and years of
experience states us at the top of the technological frontier. We work with the best
manufacturing machines / raw materials and invest time, money and great efforts in
research and development in order to achieve our gear’s excellent Sonic performance.
Signal Audio Workshop was established at 1999 and started its way by supporting and
servicing the commercial music studios of the time. In addition we started manufacturing our
first models of analog audio equipment. Our products stands align with other well known hiend gear manufactures and present excellent Sonic performance when ever compared.
As project studios started to take over the music industry, we came up with a special
product line tailored specifically to match small non console DAW environment. Our products
offer unique and useful solutions (such as the CH2-M), that fit perfectly to the special needs
of working in a compact recording studio.
Our state of the art lab comprises all manufacturing stages including computerized design
work stations, manufacturing of casing, printed circuits fabrication and the final assembling
of the unit.
Each and every new product Signal AWS manufactures is meticulously hand crafted in our
workshop and tested in our lab with Fine digital audio test equipment to ensure quality of
every component. All of our products are Beta tested in control studios by sound engineers,
in order to provide excellent sonic performance.
Electronic fabrication:
Aerial view of our electronic fabrication/assembling
compound.
We use our own state of the art PCB drawing and
track auto routing design station.
This is our vintage AUMANN manual transformer
winding machine in which we hand wind each and
every audio transformer demanded upon design.
PCB assembling is done meticulously by hand in our
electronic fabrication area.
Each and every vacuum tube we use goes
through a series of testes which partly preformed
on our vintage HICKOK MODEL 539C MUTUAL
CONDUCTANCE TUBE TESTER which allows us to
match between vacuum tubes and spec
performance.
This is our final assembling stage in which we test
each and every instrument we manufacture for
spec performance and perform a “burn in” test for
tube instruments.
Metal shop:
This is our metal shop, located in our laboratory’s
compound. On the left you can see our costume CNC
engraving machine along with all tools needed for
metal fabrication.
We use state of the art CAD-CAM processing
station which enables us to design the exterior
body of our models before they go into
fabrication.
This is a combined metal 3-IN-1/760mm SHEAR
PRESS BRAKE & SLIP ROLL machine which we use on
fabricating small metal parts.
This is our 60 yrs` old DECKEL FINEMECHNIK
leap cutter grinding machine which we use for our
grinding CNC cutters.
key people behind Signal AWS:
Oded Levi – Manager & the living spirit behind Signal
AWS.
Among other activities in charge of all product designs
and topologies involved.
Nir Benjamini – Marketing & technical Manager
USA.
Signal AWS`s site management and in charge of
P.R. worldwide.
Eddi Girshin – Product assembling and testing of
Signal AWS products.
Also manufactures his own tube hi-fi amplifiers in our
workshop under the name of J-soundlab.
Rona Geffen –Technical literature & publishing of
user’s manuals, internet site material etc`.