Auto-On, Auto Audio Trigger Mode | Sonance 875D SE specification

SONAMP® 875D SE 8-CHANNEL AMPLIFIER

Auto-On

You can set your 875D SE so that any zone will automatically turn ON when it receives an audio signal, or when it receives a control voltage from an external source (such as a Sonance Navigator Harbor multi-zone controller). Each zone has two Trigger Mode switches located on the rear panel: Auto — zone is turned ON when an audio signal is present, and Volt — zone is turned ON by an external control voltage (see Figure 14).

NOTE: Setting both switches ON puts that zone in the Serial control mode, disabling the Auto On feature . (See Serial Control, on page 14 . )

AUTO (Audio) Trigger Mode

TRIGGER MODE
CH 1/2	AUTO	RS-232
CH 1/2	VOLT	RS-232
CH 3/4	AUTO
	AUTO
	VOLT
CH 5/6	AUTO
	AUTO
	VOLT	RS-232
	VOLT	RS-232
CH 7/8	AUTO
CH 7/8	VOLT	RS-232

OFF ON

Figure 14:

Auto-On Trigger Switches

When a zone’s AUTO switch is set to the ON position, any audio signal arriving at the zone’s active input connectors (as determined by the INPUT ASSIGNMENT DIP SWITCHES, see page 8) will activate the zone for operation. The sensitivity of the zone’s AUTO-ONcircuit can be increased or decreased by adjusting the AUTO ON level control on the front panel (see Figure 15).

•Turning the control clockwise increases the sensitivity (less voltage is required to trigger the AUTO-ONfunction).

•Turning the control counter-clockwise decreases the sensitivity (more voltage is required to trigger the AUTO-ONfunction).

The AUTO-ONtrigger sensitivity ranges from 5mV/ch in the full clockwise position to OFF (AUTO- ON will not trigger) in the full counter-clockwise position.

	3 – 4		5 – 6
L	R	L	R
	AUTO ON

Figure 15:

Zone AUTO ON (Audio)

Trigger Sensitivity

Adjustments

In the AUTO-ONmode the zone will remain ON for approximately 3 minutes after the audio signal has ceased. This provides ample time to prevent erratic operation from pauses between musical passages or while changing sources.

VOLTAGE Trigger Mode

When a zone’s VOLT switch is set to the ON position it can be automatically turned ON by an external trigger voltage that appears at the zone’s EXTERNAL TRIGGER INPUT connections (see Figure 16).

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

The 875D SE has individual EXTERNAL TRIGGER INPUT connections for each zone, and an additional EXTERNAL TRIGGER INPUT connection (labeled ALL) that will turn all 4 zones ON from a single voltage trigger.

ALL 1/2 3/4

5/6

7/8 CH

+ – + – + –

+ –

EXTERNAL TRIGGER INPUTS 5 – 24V AC–DC

Figure 16:

External Trigger Input

Connections

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.

875D SE specifications

The Sonance 875D SE represents a pinnacle in high-performance audio solutions, catering specifically to discerning audiophiles and professional installers alike. This powerful amplifier combines cutting-edge technology with superior engineering, providing an exceptional listening experience that resonates with clarity and precision.

One of the standout features of the 875D SE is its Class D amplification, which delivers high efficiency without compromising on sound quality. This amplifier is designed to provide a robust output, allowing it to drive a wide array of speaker configurations with ease. With its ability to produce up to 75 watts per channel into 8 ohms, users can enjoy rich, dynamic sound in various settings, from residential to commercial environments.

The 875D SE is equipped with advanced digital signal processing (DSP), offering users a comprehensive array of tuning capabilities. This technology ensures optimal audio performance by enabling precise adjustments for room acoustics, allowing users to customize their listening experience. The integrated DSP also features a 30-band equalizer and multiple crossover settings, enhancing system flexibility and ensuring compatibility with a variety of speaker setups.

Another key characteristic of the 875D SE is its multi-zone functionality, which allows users to distribute audio across multiple rooms or spaces. With support for up to four independent zones, each zone can be controlled separately, delivering exceptional convenience in whole-home audio solutions. This is complemented by the amplifier’s intuitive interface and compatibility with various control protocols, making integration into existing systems seamless.

The build quality of the 875D SE reflects Sonance's commitment to durability and reliability. Encased in a robust chassis, the amplifier is designed to withstand the rigors of installation and everyday use. Additionally, its sleek design ensures it can be placed in any environment without detracting from the overall aesthetic.

Connectivity is another strong suit of the 875D SE, featuring multiple inputs, including balanced XLR and unbalanced RCA options. This versatility allows for simple integration with various audio sources while ensuring minimal signal interference. Furthermore, the amplification system is designed for easy installation, with user-friendly features that simplify the setup process.

In summary, the Sonance 875D SE is a formidable audio amplifier that delivers exceptional performance, versatility, and ease of use. With its advanced features, superior sound quality, and robust design, it stands out as a leading choice for both audiophiles and professional applications, ensuring immersive sound experiences across diverse environments.