AUSTRALIAN MONITOR ACM120XL 운영 매뉴얼 - 페이지 5
{카테고리_이름} AUSTRALIAN MONITOR ACM120XL에 대한 운영 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. AUSTRALIAN MONITOR ACM120XL 8 페이지. 120w mixer amplifier
AUSTRALIAN MONITOR ACM120XL에 대해서도 마찬가지입니다: 사양 (2 페이지)
페이지 인쇄Line Output
A 3 pin male XLR socket is provided to allow for connection to additional power amplifiers. The line level signal is the
mixer output of the ACM120XL allowing this "mixed" signal to be split to other amplifiers. This is most commonly used
when more power (than the 120 watts of the ACM120XL) is required. In this situation, a standard microphone lead is
used to connect the line output of the ACM120XL to the line input of a power amplifier. The speaker load then needs to
be split into two (one for each amplifier) making sure that each amplifier is driving no more than it's recommended load.
The line output is a balanced 700mV signal which can be used to connect (daisy-chain) up to 6 power amplifiers. If more
than 6 amplifiers are required, a distribution amplifier is recommended.
Microphone Inputs
The ACM120XL includes 8 microphone and line inputs. The microphone inputs are via 3 pin XLR female sockets. The
microphone inputs are 200 ohm and are suitable for a wide range of dynamic or electret microphones. When using
electret microphones, phantom power should be enabled for those particular inputs. Phantom power (15v DC) is
available on all XLR inputs and can be switched on or off per channel. To enable phantom power on a particular input
channel, simply flip (on the rear panel) dip switch 3 (for that channel) to the on position.
Line Inputs
The ACM120XL includes 8 microphone and line (auxiliary) inputs. The line inputs are via dual RCA connectors per
channel. Although the ACM120XL is a mono amplifier, dual RCA's are provided to allow for easy connection to
domestic or professional line sources. The line inputs are suitable for a wide range of products including tuners, cassette
decks and CD players. As the output signal from line sources can vary immensely, four sensitivity settings are available
per line input. These settings are adjustable via dip switches 1 and 2 per channel. The options are:
Dip Switch 1 off, 2 off
Dip Switch 1on, 2 off
Dip Switch 1off, 2 on
Dip Switch 1on, 2 on
Dip Switch 3 is for the XLR microphone input and switches phantom power on and off (see "Microphone Inputs").
Simultaneous Use of Mic and Line Inputs Per Channel
The ACM120XL has 8 microphone and 8 line inputs. In most situations only the XLR or the dual RCA's would be used
on a particular channel. In some circumstances however, more channels may be needed in which case both the XLR and
RCA inputs can be used simultaneously per channel. When using both a mic and line input per channel, both inputs are
mixed and are controlled simultaneously via the channel level control.
Line Input Sensitivity
Four sensitivity adjustments are provided for each line input. See "Line Inputs".
Phantom Power
15v DC Phantom Power is selectable per XLR microphone input. See "XLR Microphone Inputs". Phantom Power should
only be used on balanced electret microphones. Using phantom power with unbalanced microphones may damage the
microphone.
Muting
The ACM120XL includes an advanced priority/muting system which is installer adjustable. When shipped, the
ACM120XL has three priority inputs. From the factory, Input 1 has overall priority and mutes inputs 2-8 when signal is
present. Input 2 has secondary priority and mutes inputs 3-8 when signal is present. Input 3 has a third level of priority
and mutes inputs 4-8 when signal is present. Inputs 4-8 have no priority and are mixed. All muting in the ACM120XL is
activated by signal (VOX) whether it be on the XLR or RCA inputs.
A number of muting options are available and can be altered via a series of internal links located on the front mixer board
behind inputs 1and 2.
90mV at 47K ohm
9dB pad (cut)
12dB pad (cut)
15dB pad (cut)