EAW CAZ1400, CAZ2500, CAZ800 4. REAR PANEL FEATURES, 1. SCREW TERMINAL INPUTS, 2. COMBINATION INPUTS, 3. SUBSONIC FILTER, 4. CLIP LIMIT, 5. AMP MODE

4. REAR PANEL FEATURES

1. SCREW TERMINAL INPUTS

The CAZ series ampliﬁers give you three options for connecting the input signal — these screw terminals, and XLR or 1/4” connectors via the "combination" input described below.

You can connect either a balanced or an unbalanced signal here.

The screw terminal and the combination inputs are in parallel, and are identical electrically. Since these two inputs are in parallel, you shouldn’t connect more than one source to the INPUT A or INPUT B jacks.

2. COMBINATION INPUTS

These inputs allow you to connect balanced XLR plugs or 1/4" TRS or TS plugs from line-level sources.

Use balanced connections where possible, as these offer better rejection of noise than unbalanced lines.

Use high-quality, three-conductor shielded cable for balanced connections. The better the shield, the better the audio signal is protected from induced EMI and RFI.

3. SUBSONIC FILTER

Turn this switch on to engage a low-frequency cutoff (high- pass) ﬁlter at 30 Hz. The frequency range below 30 Hz is attenuated.

The CAZ series ampliﬁers can amplify signals below 20 Hz, but most speakers can’t reproduce frequencies that low.

By engaging the SUBSONIC FILTER, you allow the ampliﬁer to power only the frequencies you can hear. In addition, this ﬁlter can reduce low-frequency stage noise (footsteps) and accidental microphone pops that could damage a loudspeaker.

Leave this off if you are powering a subwoofer, or if your speakers can reproduce low frequencies such as the kick drum range.

4. CLIP LIMIT

When engaged, the CLIP LIMIT switch protects your loudspeakers from the effects of clipping. It is designed to be virtually transparent, meaning you probably won’t even notice any audible difference when the switch is turned on.

We recommend that you leave this switch on at all times. However, if you are working at quiet levels, or you have already placed a compressor/limiter in the signal path, you can leave the CLIP LIMIT switch off.

5. AMP MODE

This switch determines the input signal routing within the ampliﬁer. For most applications, you will use the STEREO setting. However, some applications might be better suited for using either the MONO or the BRIDGE setting.

STEREO: This is the normal position used when amplifying stereo signals. This mode accepts separate left and right inputs (A and B), and routes them to the CHANNEL A and CHANNEL B outputs. Each channel’s Level control adjusts the gain for its own channel, and each channel is independent.

MONO: This mode is used when you want to send a mono signal to both outputs. It accepts a single input (INPUT A), and routes it to both the CHANNEL A and CHANNEL B outputs. Each channel’s Level control adjusts the gain for its own channel.

BRIDGE: This mode accepts a single input (INPUT A), and uses both ampliﬁer outputs to double the power to one speaker. Use the Channel A Level control to adjust the gain (turn the Channel B Level control all the way down). The hookup diagrams show how to connect a speaker in Bridge mode.

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CAUTION

B (+)