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AER Basic Performer: Basic Boost.

Twin channel acoustic amplifier for low range. Hybrid
4 x 60 w / 4 ohm, 20 Hz - 20 kHz, dynamic control,
4 x 8"-twin cone speaker system. effect loop, tuner,- line, headphones, DI-out, AUX in...

The twin-cone bass-system
Let´s remember: double in order to maintain the sound. Why should it not work again, especially when we turn towards deeper registers? Long scale lengths, a huge physical mass, full basses. The instrument is to be reproduced full of power and sound pressure but without tardiness. Transparent, quick in response and well defined - for most systems this is not possible without immense tone corrections.
Again, a small twin-cone system is perfect - it is fast, provides a superior coverage for the critical mid-range and still has got enough substance in the treble range. Four 8"-twin-cone speaker systems which are separately powered by four 60 W power amps in a special bandpass/bassreflex cabinet provide for the required surface area and sound pressure to also reproduce the lowest frequencies.
The sound characteristics are full range, open, light and are thus appropriate for far more instruments than the bass or bass-related instruments such as harp, cello, accordion...