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M. Zähl EQ1 500 Stereo-EQ

The M. Zähl EQ1 500 Stereo-EQ is a high-end fully analog 4-band stereo equalizer in API 500 format, based on the legendary circuitry of the Zähl AM1 studio console. Designed for demanding recording, mixing, and summing applications, it delivers outstanding sound quality and flexibility in a compact module.

Its discrete analog design features proportional-Q behavior, meaning the bandwidth becomes narrower as gain is increased—allowing both musical shaping and precise corrections. Each band offers multiple selectable frequencies and a gain range of ±12 dB, providing a wide range of tonal control.

The EQ’s flexibility is further enhanced by switchable filter types: high and low bands can operate as shelving or bell filters, while the mid bands feature different tonal characteristics for varied sonic textures.


Sound Character

The EQ1 500 delivers highly musical, natural, and precise equalization. Boosts sound smooth and organic, blending seamlessly into the mix without harshness.

Low frequencies can be shaped with punch and control, while the midrange offers versatile tonal sculpting—from subtle presence adjustments to corrective EQ. High frequencies remain clear and open without becoming brittle.

Thanks to its varied filter characteristics, the EQ is equally suited for surgical tasks and creative sound shaping.


Highlights

✔ 4-band stereo equalizer in API 500 format
✔ based on the Zähl AM1 high-end console design
✔ fully discrete analog signal path
✔ proportional-Q behavior for musical EQ response
✔ ±12 dB gain per band
✔ 7 selectable frequencies per band
✔ switchable high and low bands (shelf / bell)
✔ varied filter characteristics for tonal flexibility
✔ hard bypass for transparent signal path
✔ ideal for recording, mixing, and summing


Typical Applications

✔ precise EQ for vocals and instruments
✔ shaping drums, bass, and guitars
✔ stereo bus and summing processing
✔ tracking EQ during recording
✔ versatile all-purpose EQ in 500-series racks


Technical Specifications

✔ device type: stereo equalizer
✔ format: API 500 series
✔ bands: 4 fully switchable EQ bands
✔ frequency selection: 7 frequencies per band
✔ gain: ±12 dB per band
✔ filter behavior: proportional Q
✔ circuit: discrete (API 2520 op-amp based)

Hersteller:
Zähl Elektronik-Tontechnik
Michael Zähl
Am Stadion 18-24
51465 Bergisch Gladbach
Germany
info@zaehl.com
https://zaehl.com


Sicherheits- und Warnhinweise:
Spezifische Sicherheitshinweise, die für das Produkt gelten, sind in der Bedienungsanleitung des Produkts zu finden.

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Zähl IM1 M/S Insert Master
Zähl IM1 M/S Insert Master

Zähl IM1 M/S Insert Master The Zähl IM1 M/S Insert Master is a high-end fully analog stereo insert master module in API 500 format, based on the master section of the renowned Zähl AM1 console. Designed for professional mixing and mastering applications, it expands traditional insert workflows with advanced mid/side processing, parallel routing, and stereo control. The IM1 acts as a central insert hub for external outboard gear, allowing processors to be used not only in standard left/right stereo but also in mid/side mode. This enables precise processing of mid and side components independently—ideal for modern mastering workflows. Additional features such as send boost, dry/wet control, and impedance matching allow optimal integration and fine-tuning of connected hardware units. Sound Character The IM1 is designed for maximum transparency and pristine signal integrity. Its fully analog signal path without microprocessors ensures extremely low noise and distortion, preserving the original character of the audio. With its flexible mid/side matrix and parallel processing capabilities, users can precisely shape stereo width and depth—from subtle adjustments to more creative spatial effects. The integrated stereo base control allows continuous adjustment of the stereo field from mono to extreme width, while maintaining mono compatibility via the Constant Mid function. Highlights ✔ stereo insert master with mid/side matrix in API 500 format ✔ based on the Zähl AM1 high-end console design ✔ flexible integration of external outboard processors ✔ mid/side processing for precise stereo control ✔ continuous dry/wet control for parallel processing ✔ send boost up to +20 dB ✔ stereo base control for width adjustment ✔ “Constant Mid” function for mono compatibility ✔ impedance matching (Z-switch) for optimal integration ✔ comprehensive monitoring of insert send/return ✔ fully analog discrete signal path Typical Applications ✔ central insert hub for analog outboard chains ✔ mid/side processing in mixing and mastering ✔ parallel compression and EQ workflows ✔ stereo width and spatial shaping ✔ integration of hardware in hybrid DAW setups Technical Specifications ✔ device type: stereo insert master / M/S matrix ✔ format: API 500 series ✔ width: 2 slots (+ additional slot for I/O breakout in standard racks) ✔ circuit: fully analog, discrete ✔ max level: > +26 dBu ✔ input gain: ±10 dB ✔ output gain: ±10 dB ✔ L/R balance: ±2.5 dB ✔ insert send boost: up to +20 dB ✔ functions: M/S matrix, dry/wet, stereo width, impedance select, monitoring ✔ connections: stereo I/O + insert send/return (XLR via breakout/rear panel)

Lieferzeit: ca. 5-7 Werktage

Regular price: €1,849.00