CH M1.1, Руководство пользователя

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(1) Customized Argento Audio speaker terminals
(2) Output coil for HF immunity
(3) Monaural analog input boards (each M1.1 can be equipped with 1 or 2 such boards)
(4) Small signal power transformer
(5) Mains switch, low power section fuse and power cord receptacle
(6) High power section fuse and power cord receptacle
(7) Standby power transformer (ensures green mode Standby)
(8) USB (firmware update) and RJ-45 (control) board
(9) Adjustment shafts and spikes
(10) Power supply regulation boards
(11) Heatsink-mounted amplifier boards
(12) Shielded small-signal analog ground
(13) User interface push buttons
(14) Rectifying diode bridges, mounted onto the front panel
(15) Custom ultra-low ESR/ESL rectifying capacitors
(16) Main analog ground oxygen-free copper plate
(17) Display (on front panel)
(18) High power section transformer
1.1 Unmatched flexibility
The M1.1 offers unmatched system integration flexibility. Not only does it provide multiple modes of operation (stereo, monaural,
bridge and bi-amplification modes) but also allows adjustments to match the loudspeaker impedance and sensitivity through
feedback and gain controls. The operating modes can be selected from the M1.1 front panel user interface or from the Android
app.
1.1.1 Operation modes
The M1.1 integrates two power amplification channels and provides the option to support a single or dual input boards. In its
default configuration, the M1.1 is delivered with a single input board and provides following modes of operation:
•
Monaural mode: In this mode, the entire power of the power transformer is dedicated to a single output channel and the
M1.1 can deliver up to 2200W. It is optimal for low impedance speakers, requiring large amount of current.
•
Passive bi-amplification mode: In this mode, the M1.1 operates its two power amplification channels, each channel
driving a different loudspeaker terminal with an identical signal. Feedback and gain can be adjusted independently for
each channel to best match the individual speaker sections. In Bi-Amplification Mode, each channel delivers 200 W under
8 Ohm (350W under 4 Ohm or 600W under 2 Ohm). It is optimal with speakers with more than one pair of binding
posts.
•
Bridge mode: In this mode, the M1.1 operates as a very high power monaural power amplifier, where both amplification
channels are used in balanced mode from a single audio signal. When configured in Bridge Mode, the M1.1 can deliver
up to 700 W under 8 Ohm. It is optimal for high impedance speakers in large rooms, requiring large voltage swings.
By adding a second input board, the M1.1 provides following additional operating modes:
8 M1.1 User Manual Rev 3.0