1081 - CHANNEL AMPLIFIER Rebirth of classic Neve mic and EQ amp
The 1081 channel amplifier was first produced in 1972 and was used to provide the mic/line-amp and EQ sections in Neve consoles such as the 8048. A look through the credits on today's top selling CDs will reveal that these vintage consoles are still widely used to great effect and that the 1081 module has become a hugely popular design classic. AMS Neve is therefore pleased to announce that production of the 1081 module has been resumed, using the original components and construction methods. To quote the 1972 sales leaflet: "This versatile instrument not only provides wide range control of sensitivity and effective high and low pass filters designed to separate unwanted signal outside the passband, but also gives the operator a flexible tool with which he can create new sounds and control any part of the audio spectrum. The curves and slopes have been carefully tailored to be musically related enabling the operator to exercise maximum technical and artistic skill. The unit is totally enclosed and fully screened with covers on both sides providing easy access. High grade conservatively rated components are used throughout with all active circuitry on plug-in printed circuit cards gving high reliability and minimum down time."
Housings
The 1081 is available as a stand-alone module, or in a choice of two rugged metal housings which provide power supply, phantom power switching and level controls for each module and connectors for balanced inputs (mic and line) and outputs:
The AM3631 form presents two modules mounted horizontally in a 3U, 19" rack-mounting unit. The AM3630 form houses 8 modules vertically in a 7U, 19" rack-mounting frame. Both have rear panels with XLRs for transformer balanced I/O; a 25-way 'D'-type connector for solo and spare switch contacts and unbalanced outputs; plus an IEC connector for mains power. 
Specification and description - Microphone input Zin 300 or 1200 ohms switched, gain +80 to +10dB in 5 dB steps
- Line input Zin 10k ohms bridging, gain +20 to -15dB in 5 dB steps
- Both inputs are balanced and earth-free
- Outputs Max +26 dB into 600 ohms. Zout 75 ohms ± 5% @ 1kHz, balanced and earth-free. An unbalanced output 8 dB below the level of the balanced output is also provided
- Distortion Not more than 0.07% for +20 dBm output from 50Hz to 15kHz
- Frequency response ± 0.5dB from 20Hz to 20kHz. -3dB at 7Hz and 35kHz
- Noise Output noise better than -42dBm from Zin 1200 ohms and -80dB input, giving an equivalent noise of -125dBm referred to 600 ohms input impedance fed from 100 ohms. Output noise better than -80dBm at all line input levels
- H.F. controls 5 switched frequencies, shelving or peaking curve, continuously variable 18dB cut or boost
- H.F. presence 10 switched frequencies with continuously variable 18dB cut or boost, high or low Q selection
- L.F. presence 10 switched frequencies with continuously variable 18dB cut or boost, high or low Q selection
- L.F. controls 5 switched frequencies, shelving or peaking curve, continuously variable 18dB cut or boost
- H.P. filter 5 switched frequencies with slope of 18dB per octave
- L.P. filter 5 switched frequencies with slope of 18dB per octave
- PH button Gives 180° phase change at the balanced output
- EQ button Selects equalisation in or out of circuit
- SOLO button Selects channel unbalanced output and closing switch contact
- Spare button Switches external device as required
- Power requirements 200mA at 24V DC. Negative earth
- Mechanical Front panel 45 x 305 mm. Approx. 300mm deep behind the front panel
Housings specifications (fully fitted) - AM3631 power 60mA at 240V, 120mA at 110V
- AM3631 mechanical 3U x 19" by approx 400mm deep
- AM3630 power 250mA at 240V, 500mA at 110V
- AM3630 mechanical 7U x 19" by approx 400mm deep
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NEVE - 1081
