APart MA246R Manual

APart Modtager MA246R

Læs gratis den danske manual til APart MA246R (20 sider) i kategorien Modtager. Denne vejledning er vurderet som hjælpsom af 35 personer og har en gennemsnitlig bedømmelse på 4.3 stjerner ud af 18 anmeldelser. Har du et spørgsmål om APart MA246R, eller vil du spørge andre brugere om produktet?

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The MA246 sets a new standard as a professional 6 zone PA mixing amplier/preamplier for
commercial and industrial applications, either as a standalone unit or as the central device in an
expandable, simple but clever paging system. The amplier is equipped with 4 balanced mic/line inputs,
each with adjustable gain and tone controls and up to 4 line level inputs and an emergency input.
The MA246 has a six level priority system.
The emergency/telephone input has the highest priority and is activated by switch or vox circuitry. Its
signal goes directly to the main amplier, bypassing any level control accessible at the front of the
unit, and an attenuator next to the input sets its level. Microphone input 1 has the second priority level,
followed by the mic 2, 3 and 4 and nally the line signals (music).
Zones 2 to 6 can be individually volume controlled using the integrated speaker volume controls.
Please note that zones number 5 and 6 are 70 volt outputs, these are compatible with 100 volt
speakers, but by nature, these outputs will have a slightly reduced output level, meant for the ‘quiet’
zones in a multizone system. For even more exibility, zone 1 is an independent zone, with a separate
line level output, which turns the MA246 into a true 2 zone mixing amp with integrated preamp. During
paging, the corresponding integrated volume control will be automatically bypassed. When any priority
has been activated, integrated 24VDC supply output (max 0.6A) can activate priority relays of loud-
speaker attenuators or other devices. Even an emergency 24 VDC supply input is present on the unit.
The supply will automatically keep the amplier powered when mains power is interrupted.
Mic input 1 is optimized to be used with our MICPAT-6, a selective paging station 6 zone microphone.
This mic is the master mic. Maximum 5 of these mics can be switched in parallel on this single input !
Mic input 2 - 4 are designed to be used with our MICPAT-2 (2 zone groups) microphone or any other
microphone denpending on the application. On the MA246 unit you can preset 2 paging groups to be
paged with mic 2 – 4. Please note that it is not possible to connect multiple MICPAT-2 mics on the same
input.
That’s not all. If you are a professional installer, you will appreciate the possibility to use an external
amplier as paging amp. Why ? Suppose zones 2 and 3 should not receive paging messages, meaning
there should always be background music. Then you can use an external amp for all paging tasks.
MA246 does all the switching and thinking for you. The internal amp will be used for background music.
When a paging message is sent to other zones than zone 2 and 3, zone 2 and 3 will stay connected to
the internal amplier and will continue to enjoy the music. All other zones will hear the paging message:
the MA246 will disconnect these zones from the internal amp and will send the paging signal to the ex-
ternal amp. The external amp will feed the signal to the selected zones via the MA246. When paging is
nished, the zones will automatically be switched back to the internal amp. We will show an example of
such application in this manual. We will use a 2 channel PA2240BP amp and a MA246 in an application
that would normally use at least twice as much units to do all the switching and signal routing.
A unique new switching circuit design has been applied to ensure trouble-free switching during many
years.
Removable 19” brackets are shipped along with your amplier.
The MA246 complies with the CE standards.

Produkt Specifikationer

Mærke: APart
Kategori: Modtager
Model: MA246R

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