Weiss EQ1-DYN Equalizer

The Weiss EQ1-DYN Equalizer is a dynamic 2-Channel Digital Equalizer with seven parametric bands. With exclusive digital inputs/outputs and working at up to 24 Bit/96 kHz, the EQ1-DYN is the reference equalizer when it comes to digital mastering EQs.

The Weiss EQ1-DYN Equalizer incorporates the EQ1-MK2 with four dynamic bands. The Weiss EQ1-DYN has the same parameter set and features as the Weiss EQ1-MK2. The EQ1-DYN features four freely adjustable dynamic bands, and additionally three linear bands per channel. Setting up the dynamic bands is as easy as setting a linear band. There is just one additional parameter to be adjusted by the user, the threshold control. This makes multi-band dynamic control as easy and as versatile as adjusting a parametric equalizer. The Weiss EQ1-DYN can be used as a de-esser or to give the bass an extra punch etc..

Bands 1, 2, 5 and 6 are the dynamic bands (each individually switchable to linear) and bands 3, 4 and 7 are ordinary linear bands. A dynamic band operates similar to a compressor, with two additional features:

1) The band is sensitive to signal level in its frequency range only. So when applying dynamic bass EQ, only the bass-band of the program affects the dynamic behavior. There is no cross-modulation from other bands.

2) The gain is only applied to certain frequencies, and not across the whole audio band.

3) Other modes (low-cut, high-cut, low-shelving, high-shelving) are linear (no automatic boost/cut adjustment), and behave exactly the same as in the Weiss EQ1-MK2 Equalizer.

The reason for choosing exactly bands 1, 2, 5 and 6 is the following: As the name implies, a dynamic band is sensitive to the level of the input signal. Sometimes it is desirable to first add some EQ, and afterwards dynamically add some more. Or vice versa, first do some dynamic corrections and afterwards add overall EQ, including in the corrected band. Because the EQ bands are connected in series, this is only possible if there are linear bands before and after the dynamic bands.

Basic EQ1 Functions

The model Weiss EQ1-DYN Equalizer features the seven identical parametric bands, i.e. all seven bands cover the entire audio frequency range. Each band has Boost/Cut, Frequency and Q/Slope knobs and operates in any of the following modes: High shelving, low shelving, peaking, high cut, low cut, bypass.

Controls, Display

There are seven times three knobs in order to have “one knob per parameter” operation. The knobs are touch sensitive to switch the LCD to display the parameters of the touched band. The LCD shows the overall frequency response, the detailed parameter values and various status information.

Snapshots, MIDI, Metering

The Weiss EQ1-DYN Equalizer also features an A/B compare memory, a 128 position snapshot bank with two additional banks for back-up (can also be dumped/recovered via MIDI), a peak meter with over indicators, MIDI control for each parameter, an overall bypass switch and an overall gain control, a channel ganging switch.

Signal Processing, Connectivity

The internal processing is done at 88.2 or 96 kHz in a 40 Bit floating-point format. A very low noise filter architecture optimized for audio is used. The digital input/output are in AES/EBU format on XLR connectors. The AES/EBU output can be POW-R dithered to 16, 20 or 24 Bits.

M/S Mode

The EQ1-DYN Equalizer can be switched to M/S mode which is especially useful for this dynamic model. Other specialties are variable slope shelving filters and very high Q (up to 650) peaking filters for notching out offending frequencies.

Weiss EQ1-DYN Equalizer Features

• Seven identical parametric bands
• All seven bands cover the entire audio frequency range
• Each band has Boost/Cut, Frequency and Q/Slope knobs
• Each band operates in any of the High shelving, low shelving, peaking, high cut, low cut, bypass modes
• One parameter per knob operation
• Seven sets of controls for seven operating bands
• Knobs are touch sensitive
• LCD display shows detailed parameters of the touched band
• Large, backlit Liquid Crystal Display
• Display shows the overall frequency response (calculated in real time) and the detailed parameter values in dB, Hz and Q
• A/B compare memory, 128 snapshot bank with two additional banks for back-up
• Digital input / output in AES/EBU format on XLR connectors
• Dithering to 16 bits POW-R dithering
• 128 steps for boost/cut, frequency and Q parameters
• Variable slope shelving filters
• Very high Q (up to 650) for notching out offending frequencies
• M/S mode for independent equalization of M and S channels
• M/S encoder / decoder can be configured separately
• Peak meter, over indicators
• MIDI control for each parameter
• Bypass, overall gain, CH1/2 independent or ganged

Weiss EQ1-DYN Equalizer Specifications

• AES/EBU Input:
  • Sampling frequencies: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
  • Maximum input word-length: 24 Bits
  • Channel Status Data: Input accepts professional or consumer format
  • Channel Status Data Bits Forwarded to AES/EBU Output: See table in provided manual
  • Connector: XLR female
• AES/EBU Output:
  • Sampling Frequencies: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz (always the same as the input)
  • Output Word-Length: 24 Bits
  • Connector: XLR male
• AES/EBU Channel Status Data Conversion:
  • From Consumer to Professional
  • From Professional to Consumer
  • Transparent mode
• Power:
  • Mains Voltage: 115 V or 230 V with voltage selector
  • Fuse Rating: 500 mA slow blow
  • Power Consumption: 40 VA max.
• Size:
  • Depth: 30 cm
  • Width: 43,3 cm (19")
  • Height: 8,8 cm (2HU)

Weiss EQ1-DYN Equalizer Includes

• Weiss EQ1-DYN Unit
• Printed User Manual