Sonance BBE Sound Enhancement, OFF Bypass Mode, SONAMP 875D SE 8-CHANNELAMPLIFIER

SONAMP® 875D SE 8-CHANNEL AMPLIFIER

OFF (Bypass) Mode

When a zone’s AUTO and VOLT Auto-On Trigger switches are both set in the OFF position, the AUTO-ONcircuitry is bypassed and the amplifier’s front-panel POWER button will turn all zones ON and OFF simultaneously (see Figure 2, on page 5).

BBE® Sound Enhancement
The Sonamp 875D SE incorporates BBE® Sound Enhancement. The BBE process improves	ON HIGH ON HIGH ON HIGH ON HIGH
the presence and detail of speakers, especially at lower listening volumes, improving the
sound quality of your music — especially distributed audio systems playing background	BBE CONTROL
music. BBE also restores clarity and definition (or focus) to spoken voices, which makes	OFF LOW OFF LOW OFF LOW OFF LOW
paging systems easier to understand without having to run them at high volumes. Each
zone in the 875D SE has 2 individual switches that let you set the BBE enhancement for	1/2 3/4 5/6 7/8 CH
that zone to HIGH (+9dB), LOW (+6dB) or OFF (see Figure 17):

• If the OFF/ON switch is set to OFF, BBE enhancement is not applied
• If the OFF/ON switch is set to ON, BBE enhancement is applied according to the set-	BBE CONTROL
ting of the LOW/HIGH switch: LOW = +6dB of BBE enhancement; HIGH = +9dB of
	INPUTS 5 – 24V AC–DC
BBE enhancement.

NOTE: The factor y - default setting is +6dB on all zones .	+ – + – + – + –
	Figure 17:
The 875D SE also has a set of BBE CONTROL INPUT connections that allow the BBE	BBE Control Switches and
enhancement for each zone to be triggered ON and OFF individually by an external	External Control Input
	Connections
control voltage (see Figure 17):

•The BBE OFF/ON switch for the zone must be in the OFF position.

•The trigger voltage must be between 5V and 24V, either AC or DC.

The EXTERNAL TRIGGER connectors feature flip-up levers similar to the ones used on the speaker connectors:

1.Open the levers for the zone’s EXTERNAL TRIGGER inputs.

2.Insert the control wires into the appropriate openings in the connector.

3.Close the levers.

The front-panel ZONE STATUS LEDs indicate if BBE processing is being applied to a zone (see Figure 3, on page 7).

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