"The Optimum loudspeaker extends half an octave deeper in the
bass band with a PEQ at 35Hz and a gain of 8 dB without any
risk for the Bass chassis. We also added an 8.order subsonic
filter at 25Hz below, to avoid unnecessary diaphragm moment."
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"When the active digital crossover is setup with the exact same crossover parameters as the passive one - there is
rather small
tonal differences. But the Ground Sound power amplifiers had the Optimum driver in a tight grip – it
was a true joy. Particularly in the bass range the differences were even more audible: The Optimum loudspeaker
played substantially clearer and more precise with the Chassis 1503."
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A clear result
"When using active digital crossover technology application possibilities are permitted - that isn’t possible with
passive crossovers. The impression is absolutely positive. The Chassis 1503 is flexibly applicable, mechanically
unbelievably solid and absolutely electrical stable at all loads. The solution is naturally not cheap, but it
has an okay quality to price ratio."
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active@groundsound.com