Input Channel Features
1. Channel Overload Protection
Mono input channels 1 to | 1 | 2 | 3 | 4 | 5 | 6 | |
6 in the PowerMAX 16 (1 | |||||||
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to 12 in the PowerMAX | Bal | Bal | Bal | Bal | Bal | Bal | |
22) feature Channel | Line | Line | Line | Line | Line | Line | |
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Overload Protection - a |
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sonically transparent lim- |
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iting function suitable for |
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percussive sources such as | Mic | Mic | Mic | Mic | Mic | Mic | |
bass guitar (either direct, |
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mic'ed or a direct line | Channel 1 - 6 Overload Protection |
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from the amplifier), pop- |
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prone and feedback prone | Protect | Protect | Protect | Protect | Protect | Protect | |
microphones. (e.g. kick- |
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drum, flat top guitar, and other troublesome sources).
Each channel features a Protect LED to indicate when the overload protection is working. A single Defeat switch activates this feature on a group of six channels simultaneously.
2. Insert Jacks
The mono channels with- out Channel Overload Protection feature Insert jacks. These are
TRS (stereo)
Alternately, the Insert jack may be used to send an audio signal from that channel to a powered monitor (some people want to hear only themselves). Simply use an unbal- anced shielded patch cable – in this one case, a balanced cable will not work. Be sure to Insert the plug only to the first “click” when using the Insert as a channel send, oth- erwise the signal will be interrupted and the channel will not work. If this happens, you have Inserted the plug too far. Simply pull the plug out gently to the first stop.
3. Mic Inputs
The PowerMAX active input circuitry will accept microphones with impedances ranging from 50 ohms through 10,000* ohms. All low impedance microphones are compatible. Phantom power (covered in the section 4, Phantom Power Switch and LED, below) is available on all Mic inputs when activated. This feature is meant for condenser micro- phones but dynamic microphones may also be connected with no ill effects.
*Although it would be customary to plug high impedance microphones into the Bal Line jacks, most of them will also work in the Mic inputs, provided the microphone’s
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