Arrel Audio CL-125/4, Руководство пользователя

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ARREL Audio
CL-125/4 User Manual, Issue 0.1 Page 5
INTRODUCTION
The ARREL Audio CL- 125/4 quad mic preamplifier has been conceived to offer to the
professional user a unit that combines high reliability, rugged design, audio quality,
versatility and ease of use. CL-125/4 is perfect for recording every kind of music from
classic, pop/rock, electronic and in all the situations where maximum sound quality and
special attention to dynamic range and signal to noise ratio is needed.
The CL-125/4 technical specification shows that it is the perfect audio system for actual
digital recording 24bit/192kHz environments where superior performance is required.
CL-125/4 is based on the use of the latest circuit topologies, characterized by very low
distortion, ultra-low noise and very wide frequency response. The amplifier architecture is
based on two high dynamic range gain stages in order to avoid any saturation.
Even if the input stage of the CL-125/4 111 could accept input signals up to +20 dBu, a
special protection circuit limits the input level at +12 dBu in order to prevent any damage.
The EL-111 extended input dynamic range avoids the necessity of the input pad and the
gain is controlled by a single large knob. The absence of the input pad means better sonic
performances. In fact being it an attenuator it deteriorates the sound quality and reduces
the signal to noise ratio.
Moreover a special circuit allows the connection of microphones even if the unit is turned
on with the Phantom Power activated (in any case we do not recommend this practice in
order to protect your microphones).
CL-125/4 is dedicated (due to his absolute sonic level quality) to high professional vocal
recordings, classical instruments, high dynamic range instruments such as drums and
percussions.
ARREL Audio products are designed and manufactured in Italy.
Housing
The
CL-125/4 is contained in a 1U rack metal box. No specific air conditioning is required
for the racks, provided that there is a free flow of air through the rack from front to back
and the temperature is maintained in the operating range. Consequently the racks may be
stacked.