DRAWMER DA6 – Balanced Distribution Amplifier

The distribution of mono and stereo balanced audio signals from a single source to multiple destinations has many applications including multi-zone sound reinforcement installations, live sports events coverage, broadcast studios, video suites, duplication or indeed anywhere high quality audio has to be distributed to a number of locations down long cable runs.

The Drawmer DA-6 is a six channel stereo (or twelve channel mono) distribution amplifier featuring XLR balanced inputs and outputs with optional transformer balancing where remote amplifiers and recorders are fed from separate power supplies.

The stereo Input features individual left/right level controls with LED bargraph metering enabling the correct balancing of stereo material or two mono signals. Each of the six outputs incorporate further left/right level controls and a Mono/Stereo switch providing the selection of either one stereo output or two mono outputs per channel. This feature allows the DA-6 to function as either a 1 x stereo input/6 x stereo outputs or 1 x mono input/12 x mono output unit or any combination of the two.

The output section consists of a Channel Select so that the individual left/right output level of each channel is displayed on the output LED bargraph and can be monitored by the Headphone jack socket. A pair of auxiliary link stereo jack sockets (TRS) are provided via the rear panel for connection to further DA-6 units for the distribution of even more channels.

• 1x6 Stereo Distribution Amp with Monitoring.
• 1 set of stereo (2) XLR inputs.
• 6 sets of stereo (2) XLR outputs.
• Input stage has LED level meter.
• Each output channel can be switched to mono.
• Each output channel can be individually monitored.
• Built-in headphone amp.
• Optional transformer balanced outputs.
• Electronically balanced inputs with individual left/right level controls.
• LED metering on input for balancing stereo material or two mono signals.
• Left / Right level controls on each output with a stereo / mono switch.
• Headphone jack to monitor output of selected channel.
• LED metering on output of selected channel.
• Auxiliary pair of balanced 1/4" output jacks for linking multiple DA6 units.
• 1 unit rack space.
• Inputs and Outputs are balanced XLRs at +4dBu.

About the DI6s
It's a fact of audio life that a lot of equipment that has to be connected to
professional audio systems isn't impedance or level compatible.
Interfaces Unlimited
Tape/cassette/DVD/CD decks, audio for video, drum machines, synthesizers,
bass guitars, computers; at some stage all these need linking up to Balanced
inputs, whether the application is Live sound, Studio or Broadcast.
To solve these problems, we've developed the DI-6s:

Six active D.I. (Direct Injection) boxes,
plus a 6 into 1 Line Mixer,
plus a 1 to 6 Splitter,
All of this in a compact, all steel 1 RU package.

A Pro Audio Toolbox
This unique and flexible audio toolbox allows Six independent unbalanced
audio sources to easily and quietly interface with Balanced pro audio systems,
either to individual channels or summed down to one Master output.
But that's not all. By pressing a single switch on the rear panel the DI6s will
change from being Direct Boxes and a Mixer to being a 6 way Splitter (line
distribution amplifier). Now it will split an incoming signal to 6 individual outputs
or zones.
On the front panel, each channel has 2 IN/OUT jacks, a level control from infinity
(off) through 0dB to +15dB gain, and a Clip indicator LED.The Master section has
a Master volume control and status LEDs indicating whether the unit is in DI or
Splitter mode. In addition, as on all ARX single rack unit equipment, each channel
has a numbered marker panel ('scribble strip') you can write on for easy confirmation
of channel assigns.
Balanced Outputs
On the rear, each channel has an XLR Balanced output, with associated Ground lift
switch and status LED, to isolate the chassis and electronic grounds.
The Master section has both Balanced XLR and Unbalanced Jack outputs. In addition
there is a Balanced XLR input with a switch to put the unit in either DI or Splitter mode.
Universal AC Power
AC power range is a universal 100 to 120V or 220 to 240V AC, and is connected to the
unit via a removable power lead and standard 3 pin IEC connector, with built-in fuse and
voltage change switch.
With so many handy functions, plus a true 'user friendly' layout, it's no wonder people call
the DI-6s 'A total Audio Patching System in 1 RU!'
You'll never compromise on Quality when you choose ARX

Features
Unique Pro Audio problem solver
Six Direct boxes, Splitter and Line Mixer in one unit
Multi mode unit: Six in, Six out; Six in, One out; One in, Six out
Individual Output Ground lift switches
Up to +15dB Gain available per channel
Balanced XLR Outputs; High Impedance Jack Ins and Outs
Flawless performance in any audio environment

T E C H N I C A L S P E C I F I C A T I O N S

Channels 1 - 6
High Z Input Impedance 2.2 Meg Ohm
Max Channel Gain 15dB
Clip LED Illuminates 1dB prior to clip
Direct Output Impedance 300 ohms Balanced
Max Input Level +20dB
Max Output Level +21dB
Signal to Noise -96dB(unity gain)
Frequency Response 20Hz to 20KHz, ±0.5dB
Distortion < 0.004%, 1KHz, +4dB
Output Connector 3 pin XLR
Master Section
Output Impedance 300 Ohms Balanced
Max Output Level +21dB
Signal to Noise -90dB (unity gain)
Frequency Response 10Hz to 20KHz, ±0.5dB
Distortion < 0.004%, 1KHz, +4dB
Output Connector 3 pin XLR
Splitter Section
Maximum Level + 20dB
Input Impedance 20 KOhms, Balanced
Input Connector XLR
Frequency Response 10Hz?20KHz ±0.5dB
AC Power 100-120, 220-240 V AC, 8 VA
Size 19?W x 6?D x 1??H, 482 x 155 x 44mm
Weight 2.2 Kg (5 lbs)

Front Panel Controls
Hi Impedance (Hi Z) insulated jack Input and Output
connectors
Level control with up to +15dB of Gain available
Clip LED indicator
Marker panels for labelling DI assigns
Master Level controls
Rear Panel
Balanced XLR Outputs
Individual Audio Ground Lift switches and status LEDs
XLR and jack Master Outputs
XLR Input for splitter
Splitter/DI + Mixer mode switch
AC input connector, with voltage switch and fuse. 

DBX IEQ15   

Γραφικό equalizer 2x15 περιοχών, με ενσωματωμένα
anti-feedback AFS, type V noise reduction, peak stop
limiter. XLR, ??? και euroblock είσοδοι &  έξοδοι 

Γραφικό equalizer 1/3 της οκτάβας, 2x31 περιοχών. Επιλεγόμενο εύρος αυξομείωσης 6/15dB, φίλτρο Bessel αποκοπής χαμηλών συχνοτήτων στα 40Hz με 18dB ανά οκτάβα. Hλεκτρονικά ισορροπημένες (balanced), unbalanced και RF φιλτραρισμένες είσοδοι και έξοδοι με XLR, TRS jacks και γυμνών επαφών, 3U.

1231 Dual 31-Band Graphic Equalizer

The dbx? 12 Series were designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The 1231 provides standard features like dual-channels, 31 1/3 octave bands, ISO frequency centers, +/- 12 dB input gain range, and switchable 40Hz/18 dB per octave low-cut filters, but also includes other insightful features. These include 45 mm faders; selectable +/-6dB or +/-15dB boost/cut range for precise gain adjustments; XLR, barrier strip, and 1/4'' TRS connectors for installation ease; balanced inputs and outputs for quiet operation; and chassis/signal ground lift capabilities for quick hum isolation. The visionary design of the dbx 12 Series makes your job easier.

The dbx 12 Series Equalizers were precision engineered to provide years of maintenance-free operation in any application. The magnetically isolated transformer, electronically balanced/unbalanced inputs and servo balanced/unbalanced outputs, RF-filtered inputs and outputs, and power-off hard-wire relay bypass with 2 second power up delay were steps our engineers took to ensure compatibility for all installations. Only the best components were utilized, yielding a 10Hz to 50kHz frequency response, greater than 90dB SNR (ref +4dBu), less than 0.005% THD +Noise (1kHz at +4dBu), and interchannel crosstalk of less than -80dB from 20Hz to 20kHz. All this attention to detail is contained in a 3U steel/aluminum chassis.

SPECIFICATIONS:

 

Practical distributor with 1 input and 6 outputs

• Extends every mixer with additional outputs
• 1 stereo XLR input
• 6 stereo zone outputs (XLR)
• Each zone with level control and mono switch
• LED display of signal input and mono/stereo mode
• (19") 48.3 cm rack installation 1 U
• For application areas such as: Installation; restaurants, bars and hotels; sports centres/gyms

Package contents

• 1 x device, 1 x power cord, 1 x user manual

Palmer GA MKII Grand Audition MKII

• 24 switchable balanced line outputs
• Intuitive browser-based control software
• Individual level control on each output
• Mono and stereo modes
• Multiple channel selection
• High-quality analogue signal path
• Instant channel switching with no noise or interference
• XLR line inputs and built-in USB media player
• Up to three devices cascadable

Comfortable loudspeaker routing with variable level control for an uncompromising comparison on the sales floor, along with multi-monitor and multi-room applications, are just some of the ways the GrandAudition MK2 can be effectively put to use.

GrandAudition MK2 lets you connect 16 individual loudspeakers or eight loudspeaker pairs and up to eight subwoofers - all with balanced line-level XLR connectors and housed in two 19\" rack units. Depending on how you want to use GrandAudition MK2, the outputs can be selected either individually or as stereo pairs via an intuitive browser-based app or from the unit itself.

Thereby you can choose to just switch between loudspeakers or freely configure any output combination you want, making it not only the ideal solution for a loudspeaker presentation, but also an excellent choice as a central-control-unit for trade fairs, in laboratories and for multi-room sound distribution.

Source material is supplied from a mixer, CD player or digital audio workstation through two balanced XLR inputs - with volume control, of course. But that\'s not all. GrandAudition MK2 is also equipped with a built-in USB media player on which reference titles can be accessed in WAV, AIF, FLAC, MP3 and OGG data formats.

The browser-based remote can be controlled on a tablet or laptop, offering maximum operating convenience. Ethernet and WLAN-capable devices can be used for complete configuration and control of the unit, including channel naming, media player, and other practical functions.

The ability to individually adjust the level for each output and its quick and noiseless switching mechanism, makes it possible to accurately compare loudspeakers and help you reliably guide your customers to select the right loudspeaker. Routing applications that use different levels for each output can also be set up, and a fully analogue signal path with the highest quality is also of course guaranteed with Palmer.

If necessary, you can cascade units to triple the impressive number of 16 channels plus 8 outputs and thus manage even the largest routing scenarios for monitors, such as in presentation areas. You can also use the subwoofer outputs to connect additional loudspeakers without experiencing any technical drawbacks.

In addition to powered loudspeakers, passive loudspeakers can be incorporated with power amps. Signals can also be distributed over multiple line outputs for other applications, for example, by connecting as many as 24 headphone amplifiers to one source signal - an invaluable aid in conference technology and at trade fairs. And to top it all off, GrandAudition MK2 performs remarkably well in measuring laboratories.

In short, GrandAudition MK2, with its clearly arranged features and ease of use, offers comfortable loudspeaker routing with professional sound neutrality.