User manual

ManualsBrandsWohler ManualsComputer equipmentAMP2-S8DA

AMP-S8 Series+ User Manual P/N 821640 Rev-B

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Channel Mix Selection: CHANNEL MIX Button 1-8

Press any of the eight CHANNEL MIX Buttons to activate the mixing (summing) feature. This mode is indicated by the

LCD Display showing MIX in the upper right and left of the display. For example, as follows:

MIX AES1 MIX MIX AES1 MIX

MIX AES1 MIX

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Each press of a CHANNEL MIX Button sequencially assigns the selected channel to the left, both, right, or neither

speaker channel. All eight channels may be mixed/summed in this way. With each successive button press, the color of the

associated Channel Mix LED, and the mixing/routing of that channel, cycles through the following sequence:

• First Button Press: GREEN (routed to left speaker only),

• Second Button Press: GREEN/AMBER alternating (routed to both left and right speakers),

• Third Button Press: AMBER (routed to right speaker only),

• Fourth Button Press: OFF (not mixed or routed into either speaker).

Single Channel Selection: FN Button + SINGLE Button

Single Channel Select Mode is enabled by pressing and holding the FN Button and then pressing the SINGLE Button.

After entering this mode, each press of the L UP and L DOWN Buttons will cycle up or down through channel selections

for the left speaker, while the R UP and R DOWN Buttons will cycle up or down through channel selections for the right

speaker. In the LCD display, the channel selections and speaker assignments are indicated by showing CH1, CH2, CH3,

CH4, CH5, CH6, CH7, or CH8 in the top left and top right corners of the display.

Paired Channel Selection: FN Button + PAIRS Button

Paired Channel Select Mode is enabled by pressing and holding the FN Button and then pressing the PAIRS Button.

After entering this mode, each press of the L DOWN or R DOWN Buttons will step down through the channel pair

selections and each press of the L UP or R UP Buttons will step up through the same channel pair selections. In the LCD

display, the channel pair selections and speaker assignments are indicated by showing CH1/CH2, CH3/CH4, CH5/CH6,

or CH7/CH8 in the top left and top right corners of the display respectively. The CHANNEL MIX LEDs also indicate

these channel assignments by lighting up in the same manner as described in Channel Mix Selection section above.

Downmix Selection: FN Button + DOWNMIX Button

Downmix Mode is enabled by pressing and holding the FN Button and then pressing the DOWNMIX Button. Downmix

selections are cycled through using the L DOWN and R DOWN Buttons or the L UP and R UP Buttons. In Downmix

Mode the user may select from seven different mix types for monitoring through the speakers. Note that in the DM

downmix modes indicated, Channel 4 is not reproduced because it normally carries the LFE channel, which is below 200

Hz.

DM1: This downmix is most suitable for a loudspeaker or headphone downmix of a multi-channel program. Left and Left

Surround input channels mix into the left speaker, Right and Right Surround input channels mix into the right

speaker. Center input channel mixes equally into both left and right speakers. Contribution of the Surround channel

mix is set by the Surround Gain entry (page 30) in the Setup Menu. DM1 is equivalent to one of the Japanese

ARIB Set 1 downmix formulas. See Diagram-A, page 33.

DM2: This downmix can be used to create a two channel mix which could be further decoded to multi-channel program by

the use of an external Surround decoder. Contribution of the Surround channel mix is set by the surround level

entry in the setup menu. DM2 is equivalent to one of the Japanese ARIB Set 2 downmix formulas. See Diagram-B,

page 34.

DM3: Same as DM1 but with surround level set to –3dB. DM3 is equivalent to one of the Japanese ARIB Set 3 downmix

formulas. See Diagram-C, page 35.

4+4: In this downmix channels 1..4 are summed to the left speaker, Channels 5..8 are summed to the right speaker.

MXA and MXB: Select one of these two downmixes to "custom" mix by adding Channels 1-8 into the left or the right

speakers using the CHANNEL MIX Buttons (see Channel Mix Selection above). Both MXA and MXB mix

selections are stored and are available for recall with each cycling of the units power (On/Off).

MIX: This mode appears whenever the CHANNEL MIX Buttons are pressed. The selection made in this mode is lost

whenever another mode is selected, or a preset is recalled. Presets saved in MXA or MXB mode are recalled in this

mode.

User Interface Function Guide

Section 2: Operation

Selection Modes (Cont.)