Mercenary Audio - EAR 825 Dual/Stereo Mastering EQ

The EAR 825 "Mastering Equalizer" may be one of the finest EQ's to ever grace the planet. The input and output amplifiers follow designer Tim de Paravicini's philosophy of low distortion, low noise, high headroom and wide bandwidth. The 825Q runs in single ended mode with ultrahigh quality, in-house designed coupling transformers which provide balanced and floating input and output connections at studio levels On each channel there are five bands of EQ. Shelf filters give boost or cut in the bass and treble, with four corner frequencies on each control and variable degrees of boost or cut. In addition there are three tuned boost/cut filters with center frequency adjustable over a total range of 60 Hz to 16 kHz.

EAR 825 features

The EAR825 is a stereo equalizer for studio use where sound quality is the top priority. Housed in a single 3U 19 inch rackmount unit, it gives the user flexible and intuitive control over a wide range of response shaping options.

On each channel there are five bands of EQ. Shelf filters give boost or cut in the bass and treble, with four corner frequencies on each control and variable degrees of boost or cut. In addition there are three tuned boost/cut filters with center frequency adjustable over a total range of 60Hz to 16kHz.

These give a maximum boost or cut of 12dB allowing quite large response variation but without sacrificing sensitivity. Controls are laid out for maximum ease of use and can be bypassed at the flick of a switch for quick reference to the original signal. All the equalizing circuitry in the EAR825 is completely passive with valve (tube) electronic stages providing buffering and amplification on the input and output.

This valve circuitry follows designer Tim de Paravicini's philosophy of low distortion, low noise, high headroom and wide bandwidth. The 825Q runs in single ended mode with ultra-high-quality, in-house designed coupling transformers which provide balanced and floating input and output connections at studio levels.

A highly filtered power supply ensures that operation is not impaired by disturbances on the electricity mains. As with all EAR professional audio products reliability is paramount and valve life is typically 10000 hours.

SPECIFICATIONS

Frequency Response controls defected 5Hz-50kHz �0.5dB Gain 0dB
Input Fully Floating Bridging 20kohm
Output Fully Floating for 600ohm use Source Impedance 60ohm
Distortion = Less than 0.1% @+4dB (1.22V) Midband, Less than 0.5% @ +24dB (12.2V)
Controls 5 Band Stereo:
Defeat Switch Power Switch Voltage AC
Power Consumption: 50VA 100-250V (Factory Option
Size: 19" x 51/4" (3U) x 10" depth

As these are hand made, custom items, we will require a 50% deposit upon order. Please allow 4 - 6 weeks for delivery. If you have anything in mind in terms of features or tone, it often can be arraigned for a nominal fee. Email us with any questions.

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