{"product_id":"weiss-a1","title":"Weiss A1","description":"\u003cp\u003eThe A1 is our first analog input\/output only product. A state-of-the-art microphone\/line pre-amplifier with a de-esser in the popular API 500 Series format. The side-chain of the de-esser uses a DSP – unique but advantageous for the precision of the side-chain and enabling the use of a very low noise gain element. Two modules can be side-chain linked for stereo operation.\u003c\/p\u003e\n\n\u003cp\u003eIt has a transformer balanced wide level range input with a pad for line level sensitivity. The input gain is set with a sixteen position switch. A low cut filter is useful for microphone work. Phantom power can be switched on or off.\u003c\/p\u003e\n\n\u003cp\u003eThe output is also transformer balanced and has an additional potentiometer to set the output level independently from the levels the de-esser is running at. A polar its switch allows to change the absolute polarity of the output signal.\u003c\/p\u003e\n\n\u003cp\u003eThe de-esser section uses a bandpass filter to split the audio band. The bandpass filter parameters are the centreInput, pre-amplifier\u003c\/p\u003e\n\n\u003cp\u003eThe A1 microphone pre-amplifier stage uses a transformer-balanced, discrete, class A design with a current-feedback amplifier architecture for low distortion and wide bandwidth across the full gain range. The pre-amplifier sports very low noise for a wide range of source impedances, across the full gain range. The gain is variable in 3 dB steps between 15 and 60 dB. A 24 dB pads allows to feed line levels as well. A high pass filter can be switched in. The corner frequency can be selected to be 40 or 80 Hz.\u003c\/p\u003e\n\n\u003cp\u003eDe-esser\u003c\/p\u003e\n\n\u003cp\u003eThe de-esser section uses an advanced mixed signal design: The direct signal path is fully analog while the side-chain works in the digital domain. This enables the use of a low distortion precision MDAC (Multiplying D\/A Converter) as the variable gain element. The side-chain is built for very low latency, using a 500 kHz sampling frequency.\u003c\/p\u003e\n\n\u003cp\u003eFront panel controls\u003c\/p\u003e\n\n\u003cp\u003eThe front panel controls for the de-esser section are knobs for frequency, bandwidth and threshold. Further parameters (ratio, attack and release time) can be set via DIP switches.\u003c\/p\u003e\n\n\u003cp\u003eOutput\u003c\/p\u003e\n\n\u003cp\u003eThe output also uses a transformer balanced design with a high maximum output level of +27 dBu. An additional output gain potentiometer allows to set the output level in a wide range. frequency and the Q. The Threshold parameter defines the sensitivity of the de-esser side-chain. A few attack and release times and ratios can be selected via DIP switches at the bottom of the unit. A LED indicates whether there is any gain-reduction happening and a \"listen\" switch allows to listen to the signal filtered by the band-pass. Useful to zoom in on e.g. specific sibilances. The de-esser can be bypassed with a switch. Several LEDs allow to monitor the input and output levels.\u003c\/p\u003e\n\n\u003cp\u003ePower\u003c\/p\u003e\n\n\u003cp\u003eSize\u003c\/p\u003e\n\n\u003cp\u003eDepth: 15 cm\u003c\/p\u003e\n\n\u003cp\u003eWidth: 3,8 cm (1 slot)\u003c\/p\u003e\n\n\u003cp\u003eHeight: 13,3 cm\u003c\/p\u003e\n\n\u003cp\u003eInput\u003c\/p\u003e\n\n\u003cp\u003eInput gain range, pad off: +15 dB to +60 dB, 3 dB steps\u003c\/p\u003e\n\n\u003cp\u003ePad attenuation: 24 dB\u003c\/p\u003e\n\n\u003cp\u003eMaximum input level at minimum input gain, pad on: +29.7 dBu (for THD+N ≤ −80 dB)\u003c\/p\u003e\n\n\u003cp\u003eInput impedance at 1 kHz, pad off: 8.4 kΩ\u003c\/p\u003e\n\n\u003cp\u003eInput impedance at 1 kHz, pad on: 2.8 kΩ\u003c\/p\u003e\n\n\u003cp\u003eOutput\u003c\/p\u003e","brand":"Weiss","offers":[{"title":"Default Title","offer_id":57959754695039,"sku":"8820","price":1695.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/8820-1.jpg?v=1783943213","url":"https:\/\/sxpro.co.uk\/products\/weiss-a1","provider":"SX Pro","version":"1.0","type":"link"}