ART EQ351 SINGLE 31 BAND EQ

ART?s 351 Single Channel 31 band 1/3 octave graphic equalizer features: constant Q circuitry
with a 3% center frequency accuracy, 20mm center detent sliders, selectable boost/cut range
of 6dB or 12dB, active balanced and unbalanced input and output connect-ions, adjustable high
pass filter, adjustable low pass filter, variable input level control, clip level indicators, ground lift
switch, internal power supply and selectable line voltage switch. A range control switch is provided
which allows you to set the maximum boost or cut for each band of equalization to either 6dB
or 12dB. The high pass filter rolls off lower frequencies which is useful for decreasing rumble or
low frequency hum from a signal . Its range is adjustable from 10Hz to 250Hz. Frequencies below
this setting are rolled off, while frequencies above are unaffected. The low pass filter rolls off higher
frequencies which is useful for reducing hiss or sibilance from a signal. Its range is adjustable
from 3kHz to 40kHz. The rugged, all-steel constructed chassis occupies 1U rack space and is
intended for installation in standard 19" equipment racks.
Multiple input and output configurations are provided for ease of use and incorporate paralleled
connections. The XLR and 1/4" TRS connectors use active balanced, low noise circuitry. XLR
connections are: Pin 1 = ground, Pin 2 = Hot (+), and Pin 3 = Cold (-). The 1/4" TRS connections
are: Tip = Hot (+), Ring = Cold (-), and Sleeve = ground. Both the XLR and 1/4" connectors may
be used in an unbalanced configuration. The RCA jacks are unbalanced. The 351 is designed to
work with a variety of signal levels. The input level control covers a wide range and can easily
accommodate -10 and +4 signal lev els. A clip LED will light when a signal level of 5dB before
clipping occurs.
The 351 may be used in a variety of applications such as live sound, recording studios, instrument
racks as well as any conventional fixed installation environment. Use the 351 equalizer wherever
precise modification of the frequency contour of a sound is needed. The 351 graphic equalizer is a
powerful tool for solving a number of audio problems and creating interesting sound textures. Patch
the EQ between your mixing console and power amps to allow you to alter the overall mix to better
match your environment. Use the 351 between your monitor mixer and monitor power amps to aid in
the removal of feedback inducing frequencies. Patch into a channel insert to EQ one channel or track
individually. Run your instrument directly into the equalizer to enhance its sound before reaching a
power amplifier or instrument amplifier. Patch the 351 into the effects loop of an instrument amplifier
or between a preamp and power amp to have precise control over the complete sound.

The 351 Single Channel 31 Band Eq has the features and performance you need for any of your audio
applications requiring equalization. For the latest in equalizer technology today, check out the 351 at
your favorite ART dealer.

351 - Single 31 band EQ Features:

Single Channel 31-Band Graphic Equalizer
Constant-Q Filtering
Balanced XLR, Active Balanced 1/4“, and Unbalanced RCA Input and Output Connectors
+/- 6dB or +/-12dB Level Adjustments
20mm Center Detented Frequency Band Sliders
Independent Level and Bypass Controls Per Channel
Designed for Years of continuous, reliable performance
Rugged All Steel Construction
One Year Warranty

• Professional 15-band stereo graphic equalizer for live and studio applications
• Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as audio analyzer
• Ultra-low noise 4580 operational amplifiers for highest signal integrity
• Dedicated mono subwoofer output with adjustable crossover frequency
• Additional low-cut filter removes unwanted frequencies, e.g. floor rumble

• Highly accurate 4-segment LED output metering and input gain controls for easy level setting
• Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors
• “Planet Earth" switching power supply for maximum flexibility (100 - 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving
• 3-Year Warranty Program*
• Designed and engineered in Germany

• Audiophile 31-band stereo graphic equalizer for live and studio applications
• Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as audio analyzer
• Ultra-low noise 4580 operational amplifiers for highest signal integrity
• Dedicated Limiters with gain reduction meters for each channel protect your sound system from overload and distortion
• Pink noise generator provides test signals to adapt your sound system to any room acoustics
• Mono subwoofer output with dedicated level control and adjustable crossover frequency
• Additional sweepable high and low-cut filters for each channel remove unwanted frequencies e.g. floor rumble, hiss etc.

• Highly accurate 8-segment LED input/output metering and input gain controls for easy level setting
• Relay-controlled hard bypass with an auto-bypass function during power failure (fail-safe relay)
• Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors
• “Planet Earth" switching power supply for maximum flexibility (100
  - 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving

Phonic's GEQ3102F is the authentic soundman's choice of EQ - a dual channel 31-band equalizer, offering 6 or 12 dB of cut or boost on standard ISO center frequencies between 20 Hz and 20 KHz. The GEQ3102F is 2-rack space units high and accepts both 1/4" TRS phone jacks and XLR connectors, making it ideal for any studio or live venue setup.

• Sweepable high and low cut filters on each channel to remove unwanted frequencies 
• Ultra low-noise audio operational amplifiers offer outstanding sound performance 
• Relay-controlled hard-bypass with an auto-bypass function during power failure 
• Dedicated subwoofer output with user-adjustable low-pass filter
• Feedback detection circuitry for indicating critical frequencies
• Balanced inputs and outputs with 1/4" TRS and XLR connectors

The Rane ME 15S microGraphic Equalizer is a two-channel, 2/3-octave design with 20 mm sliders in a single rack space unit. It features a Range switch for high slider resolution in the ±6 dB mode, equivalent resolution to 45 mm sliders found on the DEQ 60L. The ±12 dB mode provides a wide range of control over system audio.

The active filter sections feature Raneʼs innovative constant-Q (constant bandwidth) design. Constant-Q means the bandwidth of each individual filter is guaranteed to be narrow enough to prevent unwarranted interaction between filters, yet wide enough to produce exactly the type of correction curve demanded by even the most unusual acoustic surroundings. This differs dramatically from conventional designs of the past, encumbered with the unfortunate characteristic of changing bandwidth when changing boost/cut amounts.

Front panel controls and indicators include an overall rotary Level control for each channel as well as Overload indicators. Passive pushbutton Bypass switches feature LED indicators, avoiding ambiguity by being on when the unit is Bypassed. (A passive Bypass switch requires no power to operate. This allows completion of the audio path should power fail in the ME 15S.)

Inputs and Outputs are electronically balanced designs, capable of unbalanced operation when required. They accept and drive all possible signal levels into normal load impedances. Balanced applications choose between the XLR or 1/4" Tip-Ring-Sleeve connectors. Unbalanced sources also may tie to the ME 15S through mono 1/4" connectors (no ring connection).

• Constant-Q Bandwidth Design
• Overall Level Controls and Passive Bypass Switches
• 20 mm Filter Slide Controls with ±6 dB or ±12 dB Slider Range
• Infrasonic, Ultrasonic, & RFI Filters
• Balanced XLR and 1/4" TRS Inputs and Outputs
• Universal internal switching power supply (100-240 VAC)

Digital stereo active crossover with 4 inputs and 8 outputs, incl. software .

• Flexible routing configurations for all standard mono and stereo output operating modes
• 4 analog inputs and 8 analog outputs (XLR)
• Active frequency filter types (Bessel, Butterworth and Linkwitz-Riley) with slopes up to 24 dB/octave split up the audio signal into different frequency bands
• Incl. software editor (for PC and Mac) for remote control via computer through USB interface: store, transfer, and manage your presets
• Up to 30 user presets storable in the device via software
• 5 menu languages selectable (German, English, French, Spanish, Dutch)
• Alphanumeric LCD screen with 2 lines of 16 characters each
• Input sensitivity digitally adjustable
• Inputs and outputs with 4-digit LED level meter as well as clip and limit LED indicator
• Mute switch with LED indicator per output
• 7-band parametric EQ per output
• Up to 7 ms signal delay adjustable for the outputs
• Output limiter with adjustable limits and automatic attack and release settings as overload protection for your amplifying system
• Switchable phase
• Lock function for prevents undesired changes to settings
• Rack installation, 1 U
• Windows XP, Vista, 7, 10 and Mac OS X 10.5.8 and better
• Digital signal processor
• The device can be connected via USB to the PC in connection with DXO Software The firmware can be updated via the PC connection
• (19") 48.3 cm rack installation 1 U