User manual MYRYAD Z122

[. . . ] The MA 120 and MA 360 have unbalanced line inputs plus directly linked line outputs, all on RCA phono sockets. The MA 240 also has unbalanced line inputs plus directly linked line outputs, all on RCA phono sockets but it in addition it has balanced line inputs on professional quality 3-pin XLR sockets. Furthermore, the two amplifier channels may be switched to bridged-mono mode for increased power output into a single 8 loudspeaker using a rear panel switch. All Myryad M-Series Power Amplifiers may be controlled remotely via the My-Link communications bus when used with other Myryad M series products. [. . . ] This will allow the different products to be remotely controlled via the infra-red receiver on, for example, an MP 100 Preamplifier. Firstly, only the MP 100 Preamplifier infra-red receiver needs to be in "line-of-sight" from the remote handset. Secondly, the My-Link allows remote control of some Myryad products which do not have their own infra-red receiver, such as the Myryad Power Amplifiers. When joined via the My-Link, the Power Amplifier will respond to STANDBY and MUTE operations on the MP 100 Preamplifier i. e. : if both the MP 100 Preamplifier and the Power Amplifier are in STANDBY, then switching the MP 100 Preamplifier out of 4 MA 360 Three Channel Power Amplifier 3 2 1 off on power channel 3 out out channel 2 channel 1 out out my-link remote trigger out 35mm jack in in in in in tip +, sleeve ­ 4. 5v - 24v dc MA 360 only The three channels in the MA 360 may be assigned in a variety of ways in Home Cinema systems. The two most common are: channels 1 and 2 for left surround and right surround, with channel 3 for front centre (using an MA 240 for left front and right front) or, channels 1, 2 and 3 for left front, centre and right front (using an MA 240 for left surround and right surround). In each case make sure all loudspeakers are wired "in phase" as described above. 9 Bridged mono switch (MA 240 only) The MA 240 is shipped with this switch in the STEREO position, with the button pressed in almost flush with the rear panel. In this mode the MA 240 operates as a conventional stereo amplifier as described above. If the button is pressed to release it to the "out" position, the MA 240 is switched to BRIDGED MONO mode. The amplifier then operates as a single channel "mono" amplifier to drive just one loudspeaker, but at a much higher power level (up to 400 watts into 8). A second power amplifier is needed for stereo operation in this mode. When operated in BRIDGED MONO mode the following rules must be applied: · Connect the line input signal to the LEFT channel input, either NORMAL (unbalanced) or BALANCED. If this too fails, then return the amplifier to your dealer for service. · UK version only: The fuse in the mains plug has failed. Sound in one channel only: · Loudspeaker cable pulled loose. Check all connections, both at the loudspeakers and amplifier. · Interconnect cable pulled loose or making poor contact. Check and, if necessary, un-plug and re-plug all relevant cables. Amplifier fails to respond to My Link remote commands (from e. g. MP 100 Preamplifier): · My-Link cable is loose or not connected. Loud buzz or hum: · Interconnect cable pulled partially out of its socket. Incorrect operation ­ some functions not working: · Control processor latched. Switch off POWER on rear panel and wait for about one minute. [. . . ] The MA 240 offers a much higher sound quality than the MA 120 and can deliver considerably more output current, so it is likely to produce significantly better sound in such a bi-amp 8 9 connected to the Line Input of a second MA 120, and so on. In this "daisy-chain" fashion a number of MA 120s (up to about 10) can be connected to the BI-AMP output of a single MI 120. There will be no adverse loading effect owing to the low output impedance of the MI 120 and high input impedance of the MA 120 (450 and 100 k respectively). Each MA 120 drives a single pair of loudspeakers in a separate room. [. . . ]