Weiss A1 Series 500 Mic Preamp and De-Esser
Weiss A1 Series 500 Mic Preamp and De-Esser
Weiss A1 Series 500 Mic Preamp and De-Esser
Weiss A1 Series 500 Mic Preamp and De-Esser
Weiss A1 Series 500 Mic Preamp and De-Esser
Weiss A1 Series 500 Mic Preamp and De-Esser

Weiss A1 Series 500 Mic Preamp and De-Esser

Weiss
Price:
$4,480
*Check with our team or your local store for availability.
We guarantee that all of our stock is 100% genuine,
New Zealand sourced stock, with full local warranty.

Description

GET IT RIGHT AT THE SOURCE
MICROPHONE PREAMP WITH DE-ESSER
Get the recording right from the start. The A1 is a precise and natural-sounding microphone and line preamp, paired with a unique digitally-controlled de-esser.

With Lundahl transformers on both the input and output, the A1 delivers enough gain to handle any recording situation, with low noise, low distortion, and beautifully wide frequency bandwidth. Use it with any quality rack in the API 500-series format.

PRISTINE PREAMP
The A1 microphone pre-amplifier stage uses a discrete, class A design with a current-feedback amplifier architecture. The preamp is transformer balanced both on the input and on the output.

Use it with any type of microphone and get up to 60 dB of clean gain with low distortion and wide bandwidth.

UNIQUE DE-ESSER
The unique de-esser in the A1 delivers smooth and natural sibilance reduction. It allows you to capture polished voice recordings right at the source, whether you are recording singing or speech.

The de-esser is very easy to set. It is digitally controlled and uses a multiplying D/A converter running at 500 kHz sample rate as the variable gain element. This reduces noise compared to other solutions and enables precision control of the de-esser.

Additional features
The preamp has a -24 dB pad for line-level sources. It also has a low-cut filter which can be set to 40 or 80 Hz. The 48V phantom power is clean, precise, and stable.

The de-esser can also be used on line-level sources, to for example reduce sibilance on an existing recording. Two A1 modules can be side-chain linked for stereo operation of the de-esser.

  • The A1 microphone pre-amplifier uses a discrete, class A design with a current-feedback amplifier architecture, delivering up to 60 dB of clean gain. It is transformer balanced on both the input and output, ensuring low noise, low distortion, and wide frequency bandwidth.
  • The A1 features a unique, digitally-controlled de-esser designed for smooth and natural sibilance reduction. It uses a multiplying D/A converter running at 500 kHz sample rate as the variable gain element, allowing for precision control and reduced noise compared to traditional de-essing solutions.
  • Equipped with Lundahl transformers on both the input and output, the A1 ensures high-quality signal transmission with minimal loss and color, suitable for any professional recording situation.
  • The A1 includes a -24 dB pad for line-level sources, a low-cut filter adjustable to 40 or 80 Hz, and 48V phantom power. These features make it adaptable to various recording scenarios, whether using microphones or line-level sources.
  • Two A1 modules can be side-chain linked for stereo operation of the de-esser, making it suitable for handling stereo recordings. The A1 is designed to fit into any API 500-series rack, ensuring compatibility with a wide range of professional audio setups.
Weiss A1 Series 500 Mic Preamp and De-Esser Specifications
Input Gain Range +15 dB to +60 dB (3 dB steps)
Pad Attenuation 24 dB
Output Gain Range −∞ dB to +12 dB (continuous)
Maximum Input Level +29.7 dBu (with pad on, for THD+N ≤ −80 dB)
Maximum Output Level +27.0 dBu (for THD+N ≤ −80 dB, 100 kΩ load)
Input Impedance 8.4 kΩ (with pad off) / 2.8 kΩ (with pad on)
Output Impedance 290 Ω
Current Consumption ±16 V supply: ≤ 150 mA, +48 V supply: ≤ 15 mA
Equivalent Input Noise (EIN) Within 3 dB of theoretical minimum of −130.4 dBu (150 Ω source, 22 Hz–22 kHz bandwidth)
Total Harmonic Distortion and Noise (THD+N) THD+N at +4 dBu in an 80 kHz measurement bandwidth
High-Pass Filter Frequencies 40 Hz, 80 Hz, or off (5 Hz, essentially no audible effect)
De-Esser Frequency Range 2–16 kHz (adjustable)
De-Esser Bandwidth Adjustable
De-Esser Threshold Adjustable
De-Esser Attack Time 100 µs, 400 µs, 1.6 ms, 6.4 ms (DIP switch settings)
De-Esser Release Time 15 ms, 30 ms, 60 ms, 120 ms (DIP switch settings)
De-Esser Ratio 1:1.5 to 1:∞ (DIP switch settings)
Output Driver Transformer balanced, continuous level control from −∞ dB to +12 dB, polarity switch
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