A zone control mixer consisting of 4 zones with 6 music inputs plus a microphone input for paging applications. Each of the 4 outputs can be independently configured to provide music from any one of the inputs plus the paging microphone and the relative levels are set by front panel controls. The music is automatically reduced in level (ducking) to allow for announcements to be heard clearly. Each zone output is mono and all inputs are stereo capable (mixed to mono internally).
Zone outputs can have flat response or Audica loudspeaker EQ, as required. A mute control input is provided to be linked to fire control systems. This mutes all music inputs whilst keeping the paging microphone active for safety announcements. Remote zone control is possible via wired control panels or an RS232 interface. Up to 7 MULTIzone units can be linked (daisy-chained) for systems of up to 28 zones.
Stereo Phono jack pair for input 1, 2, 3, 4, 5, 6
XLR balanced input for paging microphone. (48V Phantom power option provided)
15-pin D-Type connector for looping the audio (and optionally Mic and RS232) inputs to another unit.
There are also five control inputs: Remote zone control on RJ45 connector for zone 1, 2, 3, 4 and RS232
AC supply on IEC 3-pin socket. 2 meter mains cable according to sku.
MUTE input for fire control panel on Phoenix connectors. This can be wired for isolated contacts (Normally Open) or a voltage input (3-24V DC). The sense of this input can be reversed by an internal jumper such that a Normally Closed contact or absence of the 3-24V causes muting instead.
Eight outputs are available and a loop-through is provided for daisy chaining inputs to multiple units.
Mono phono jack output for zone 1, 2, 3, 4. Selectable flat or AEQ curve.
Balanced audio output on Phoenix connector for zone 1, 2, 3, 4. Replicates phono jack output for zone.
15-pin D-Type connector for looping the audio inputs (and optionally Mic and RS232) to another unit.
Mains power switch (full AC line switch - not a standby control)
zone 1, 2, 3, 4 source selector. zone 1, 2, 3, 4 music level control.
zone 1, 2, 3, 4 page mic mixing level. (When set to zero music ducking is disabled for that channel)
Rotary potentiometer to set gain for input 1, 2, 3, 4, 5, 6. Rotary potentiometer to set gain of Microphone input.
DIP switch to enable 48V phantom power for Microphone input.
Rotary potentiometer to set compressor contribution to mic channel.
Rotary potentiometer for low-mid tone control on Microphone input (Centred at 150Hz).
Rotary potentiometer for mid-high tone control on Microphone input (Centred at 5kHz).
Rotary potentiometer for music ducking "floor level" (music attenuation level).
Rotary potentiometer for music ducking release time (music fade-up time).
DIP switch to set the MIC source (input or loop-through).
Three DIP switches for RS232 address setting (1 to 8).
DIP switch for RS232 source switch (input or loop-through).
Four DIP switches to enable Audica speaker EQ (AEQ) on each output channel.
Front panel Indicators:
Power LED. Off when Mains power switch is off. Blue when mains power is on. Short-term rapid flashing indicates RS-232 enabled standby mode in operation.
Channel indicators. Each channel has a white indicator LED to show signal present. The brightness of the LED gives some indication of signal level.
Rear panel Indicators:
MIC LED. This is a 2-colour LED to assist in MIC input level setting. Green indicates signal is in the optimum range (>-20dB) and Red indicates clipping imminent (>-2dB)
Input channels. A single 2-colour LED is provided to set the line input levels. By applying a signal on each input in turn the level can be set as per the MIC LED above.
The RS-232 interface allows control of all basic functions of the unit. Commands are provided for "absolute" control (e.g. Volume = 68) only. It also controls which channels are assigned to RS232. This allows some channels to remain under manual control whilst others are RS-232 controlled. The user can also set an address for the MULTIzone on its rear panel allowing multiple chained units to be controlled from one RS-232 port. If this feature is required then the user simply sets the RS-232 source to "Chain" on the rear panel and assigns different addresses to each unit. The RS-232 data is relayed to all chained units using the same cable as the signal loop-through. The RS-232 port is uni-directional, the MULTIzone does not send any data.
Each of the 4 zones has independent controls for all variables. A rotary switch selects which input is used for that zone and the level of the music is set by a rotary control, both on the front panel. The mix of the microphone into the zone is controlled by a separate "preset" style rotary control, adjustable via a screwdriver on the front panel. When the microphone signal exceeds a threshold the music level is reduced automatically to a level which allows the microphone signal to be clearly heard (This attenuation is adjustable on the rear panel).
Each zone has both single-ended (phono/RCA) outputs and a balanced output on Phoenix connectors. A switch selects whether Audica speaker EQ is applied to the output or not.
Maximum output level on Line output jacks is 4.0Vrms
Maximum output level on Balanced output jacks is 8.0Vrms, electronically balanced.
If taking a single-ended output from the balanced output terminals then use the ground pin for screen and '+' pin for signal. DO NOT connect the '-' output pin to ground!
Each input has independent gain control to allow matching of source levels, preventing level jumps when selecting a different music sources and optimising the signal to noise ratio of the system. The microphone input also has a gain control to match a variety of microphones to the required optimum input level. Since the gain range on the Mic input is +50dB to -10dB this can also be used as a line level input (maximum input 3.3Vrms).
The input voltage range for Line in is 240mV (Maximum gain) - 6.40V (minimum gain) for full scale.
The input voltage range for Mic in is 4.00mV (maximum gain) - 3.30V (minimum gain) for full scale.
A pair of tone controls is provided for the microphone input to help compensate for any weaknesses in the microphone response. A variable compressor effect is also provided to help level out differences in loudness caused by different microphone users. This also helps prevent overload of the loudspeakers from any knock or pop noises received by the microphone or the differing mic technique of various users. 48V phantom power is available for active or condenser type microphones.
Some buildings require that the music system is muted if the fire alarm is triggered. Two types of input are provided on the unit for this purpose. A set of isolated contacts can be wired in (e.g. a relay activated by the fire control panel) or a voltage input can be accepted (3-24V DC). In either case the "polarity" or logic sense of the input can be reversed using an internal jumper if required. As shipped the contact input is Normally Open (NO) and the voltage input will mute when a voltage of 3-24V is applied.
The RS232 control port allows all the main user interface features to be controlled from a PC/Crestron/AMX etc. Output channels can be independently switched to RS232 control whilst leaving others working from their front panel controls or remote keypads; this gives great flexibility in system configuration.
The RS232 input has additional functionality in that it can be used to put the unit in standby. A specific "Standby" command will reduce power consumption to <0.5W by shutting down all internal systems. An "Operate" command can then restore system operation but it is important to note that the unit will take several seconds to fully awake, during which time no audio will be heard and no other RS232 commands can be received or acted upon. The programming of the RS232 controller device must take this into consideration.
Purchasing an audio product on the internet is not the easiest of tasks when you can't experience the most important factor - how good does it sound?
We only sell quality products that we're happy to have in our own homes.
But we don't expect you to simply trust that the products on our site are good quality, so we've implemented a few things to help give you confidence.
Each of these individual guarantees and warranties have been wrapped up into the K&B Audio Happy Sound Guarantee!
THE HAPPY SOUND GUARANTEE
1. THE BEST Returns & Exchange Policy
Quite simply, if you are not happy with the quality of the speaker(s) that you buy from us then you can either;
1) return all or part of your order and exchange or upgrade for a different system/speaker* or...
2) return them for a full refund
The ONLY question we will ask is "Can we help you choose a different system/speaker?".
We would recommend that you keep all original packaging for the Happy Sound Guarantee period, returns without packaging will incur a 10% restocking fee.
2. Extended Returns Period
We know that our products are often project based, we know you might be buying it now for installation a few weeks down the line.
So we've extended our returns period from the industry standard 14 days to a 60 days!
You can return the system for any reason during this period.** Please keep the packaging :)
3. Extended Product Warranties
Electronics are usually only covered by a one year warranty.
But we don't think that's good enough considering you have to cut holes in your ceiling!
We've managed to negotiate extended warranties with our best-selling brands that you won't get anywhere else.
Lithe Audio - 2 Year Standard, 1 Year Extended = 3 YEARS TOTAL
Systemline - 2 YEARS TOTAL
KB Sound - 2 YEARS TOTAL
Monitor Audio Passive Speakers - LIFETIME
Q Install Speakers - 5 YEAR WARRANTY
Please check individual product pages for an accurate warranty length for that particular brand/product. If in doubt contact us on 02393 190955
4. FREE Tech Support
When you choose to buy from us at K&B Audio you'll also get access to free technical support before, during and after your project.
We can help you with project design, specification of projects, how to wire and install all of the systems we offer.
Once you have your system installed we can also help with how to use it, how to get the most out of it and anything else you need assistance with.
* upgrade costs must be paid in accordance with the prices shown on our website.
** unless the goods are damaged on delivery or faulty the return postage costs are to be covered by you.
Buying from us gets you a whole host of extra features and guarantees that can't be matched by most other retailers including big-name marketplaces.
- Expert Advice Call 02393 190955, Email or Live Chat To Discuss Your Project
- Fast & Free Delivery On Orders Over £89 - Read More
- 60 Day Returns Happy Sound Guarantee - Read More
- Approved Retailers For Top Brands
- Extended Warranties On Lithe Audio & Systemline Products
- We Are Real People - Meet The Team
We know you can't wait to start enjoying your new speaker system, so we only use the quickest and most reliable couriers. We keep plenty of stock so 95% of orders are delivered the next day!
|FREE Delivery On Orders Over £89 (2-3 Working Days)||£0.00|
|Standard Delivery (2-3 Working Days)||£4.99|
|Express Delivery (1-2 Working Days)*||£6.99|
|Standard Delivery (3-4 Working Days)||£14.99|
* Available on selected products.
We only use the best, and that's decided by our customers.
The majority of our orders go via Interlink, UK Mail, DPD. Some lower value items such as spare parts and remote controls go Royal Mail.
Free delivery is normally via next day courier as well. (We don't guarantee you'll receive free delivery items the next day, but 99% of the time you will!)
Once you place an order with us you will receive a notification e-mail outlining your order and details. We then get busy picking and carefully packing your item. Once we've got it all ready to go you'll receive another update to tell you it's been dispatched with a tracking number so you can keep an eye on it!
99% of our customers receive their items sooner than they expected. We pride ourselves on super-fast deliveries and do everything we can to deliver on that promise.
Any stock issues, or other delivery issues will always result in a quick phone call and e-mail to keep you updated. However we have carefully picked our products so we rarely have stock issues.
Working days are Monday to Friday. All orders on Friday will be shipped via next working day courier which means your item will arrive on the Monday.
Orders placed on weekends will be processed and dispatched on the Monday unless otherwise stated. Orders placed on bank holidays will be processed and dispatched on the next working day.
Some additional costs apply to Ireland, Europe & Scottish Highlands.
ORDER CUT OFF TIMES
Most orders received before 2pm are processed and dispatched the same day provided the items are in stock with exception of items that have a custom stock status displaying a lead time.
After 2pm we will try our best to dispatch the same day provided our couriers have not been, however we cannot guarantee same day dispatch after 2pm.
If a product is delayed or out of stock we will contact you by telephone and/or e-mail in the earliest instance to discuss your order. We do our best to ensure that our stock levels are accurate, but on the odd occasion if the item you have purchased is out of stock we will contact you ASAP to discuss alternatives or to advise of the lead time.
IMPORTANT - PLEASE ORDER IN GOOD TIME
Please be aware that the above are guidelines, we try our best to stick to these guidelines but some delays can be caused by couriers which we have no control over.
If you are using an electrician to install your system then please order in good time we cannot be held responsible for any costs or issues incurred in delaying your electricians due to any dispatch or delivery issues. We recommend that you give yourself a good few days in advance at a minimum.
If you have not received your item after 4-5 working days (UK) please contact us immediately so that we can look into it for you.
This is very rare, we use the best couriers and can keep track of your item at every stage.
Please read our terms & conditions for full details and please feel free to contact us if you have any other questions or queries.
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