eneral escription Clearly better sound

Transcription

1 ini mplifiers Clearly better sound ront anel ear anel ront anel ear anel eneral escription he and are very compact mono amplifiers designed for integration into audio and systems here de centralised installation is advantageous. hey are intended as install and forget components, and are small enough to e fitted into all or ceiling voids or in any convenient location ad acent to pro ectors, at screen displays or loudspea ers. simple set of controls and configuration options ma es them easy to integrate into any audio system. hey are highly suita le for use ith in store digital signage, gallery and museum exhi its and fixed or mo ile tour guide systems. he t o models have identical feature sets, and differ only in dimensions and output capa ilities the can drive into a ohm load hen used ith the supplied S the slightly larger is fitted ith a line output transformer ma ing it suita le for driving line loudspea er systems. n external mains S is supplied ith each, though the is a le to operate from any external C supply of et een and. he maximum output po er is reduced ith supply voltages elo. he a ility to operate from a lo C supply voltage ma es them ideal for installation on uses, trams or river oats, or any here an C mains supply may not e readily availa le. he po er amplifier stage is fully protected against C offset, over current, over and under voltage and is also thermally protected. s itch on delay function mutes the output during po er up and po er do n to protect loudspea ers. he amplifiers mix t o un alanced stereo line inputs ith a alanced microphone input the stereo inputs are summed to mono internally. E can e set to have priority over E via a rear panel dips itch to allo the connection of message stores, etc. he mic input can e configured y further dips itches to function as a paging mic input, ith the usual Cloud options for mic over music priority and paging control via either or contact closure at the access port. he and are directly compati le ith the Cloud single one paging mic. phantom po er is availa le at the mic input, selecta le y internal umper. o allo integration into existing line systems, the paging input also has a high impedance input hich allo s the local su system eing driven y the to carry paging and or emergency announcements made using the uilding s main system. ront panel controls are provided for C, E and E levels additionally, each input has rear panel ad ustments for gain. he front panel also has and E controls for the music channel these allo the amplifier s response to e optimised to suit the loudspea ers and acoustic environment. E E illuminates if the amplifier s dynamic clip protection ecomes active, and thus clearly indicates the onset of distortion. particularly useful feature of the is the acility ort this allo s a remote input module from the Cloud for ired sources or Series for luetooth ireless sources to e connected via easy to install screened Cat ca le. icrophones, and or line sources such as radio mics, mixers, players, laptops or other audio sources including luetooth e uipped laptops, ta lets and smartphones can then e connected locally, simplifying the use of the area for presentations here porta le audio sources are in use. modules also provide remote control of music level. and S Series control plates may also e connected to the, to remotely control music level and music level and source selection respectively. n common ith most Cloud products, a usic ute nput is provided, hich may permit compliance ith local ire uthority regulations the microphone input remains active hen the usic ute is applied. he and are very energy efficient and dra very little po er in a uiescent state. user selecta le automatic po er do n function puts the module into an ultra lo current stand y mode after a preset period ith no signal. icolour front panel E indicates stand y and active statuses. E E S certification applied for. All Cloud products are exclusively designed in the UK. Every Cloud product is exhaustively tested for electronic performance and sonic perfection in Sheffield, England.

2 ey features Compact mono amplifier modules for install and forget situations o un alanced stereo line inputs ith individual sensitivity trims Electronically alanced mic input ith separate gain control hantom po er selecta le y internal umper ront panel control of music level and mic levels E ad ustments for music sources C input configura le for direct connection to line system allo s to receive announcements from main uilding system C input can e used ith paging mics aging configura le as automatic voice over music mode or contact closure via access port Selecta le E over E priority acility port for connection of remote mic line input module via screened Cat ca le also allo s remote control of music level po er amplifier o versions availa le ith lo impedance output, ith internal transformer for driving line systems usic ute control input or C for interface to emergency system Selecta le high pass filter for use ith line systems ptional E cards availa le to suit various popular installation loudspea ers utomatic po er do n function user selecta le ess than po er consumption in sleep mode Convection cooled silent in operation. S meets S oe evel energy re uirements o er re uirements to C, C, niversal C adaptor included oth models, operates from to C loc iagram

3 System Examples our guiding ith an MUSIC PLAYER LINE 1 VIDEO PLAYER LINE 2 MIC IN 70/100 INPUT LM-2 Screened Cat 5 FACILITY PORT MA40F SPEAKER OUTPUT MUSIC MUTE Microphone POWER INPUT 4 x 4 ohm speakers in series/parallel configuration (Optional: from Emergency system) V DC power supply he system sho n here uses an to provide the commentary and music in a mo ile tour guiding application, such as on a us, tram or river oat. he a ility of the range to operate from a lo voltage C supply ma es it particularly useful for this type of application. music player and a video player are connected to the t o line inputs an mic line input module could e installed remotely at the guide s location and connected to the ith screened Cat ca le. he guide s microphone ould e plugged in here he she ould also have the a ility to control music volume from the. our loudspea ers are sho n, connected in a series parallel arrangement for maximum coverage. Extending an existing hi spea er system ith an EXISTING BUILDING 100/70 V-LINE SPEAKER SYSTEM LINE 1 LINE 2 MIC IN 70/100 INPUT LM-2 Screened Cat 5 FACILITY PORT MA40T SPEAKER OUTPUT MP3 player MUSIC MUTE LOCAL 100/70 V-LINE SPEAKERS Microphone POWER INPUT (Optional: from Emergency system) V DC power supply n this example, an is used to provide local music and microphone amplification in a particular part of a uilding possi ly a ne extension, hile at the same time ensuring that the local loudspea ers are integrated ith the main uilding system. his is achieved y simply tapping into the existing uilding loudspea er iring and connecting the feed to the s hi microphone input. Setting the priority configuration s itches correctly ill ensure that uilding ide announcements ill al ays interrupt any local programme sources. he can drive line systems directly, so consistency of loudspea er type throughout the uilding can e achieved.

4 echnical Specifications ine inputs re uency esponse istortion Sensitivity nput ain Control nput mpedance eadroom oise E ualisation acility input nput mpedance Sensitivity icrophone input re uency esponse istortion ain nput mpedance eadroom oise hantom o er utput utput o er continuous sine ave eneral o er nput o er consumption External C S adaptor mplifier protection imensions x h x d eight MA40F MA40T d, to.. d u to d u d range ohms un alanced d d d, d ohms alanced d u d filter to d d to d ohms alanced d d internal umper, C input to C C niversal type, to, to ixed level signal limiter, rotection against C, S overcurrent, amplifier overcurrent, over temperature, supply voltage under over voltage, esetta le internal rea er no fuses et Shipping et Shipping MA40F et g Shipping x x. mm, x x x x, x x x x. mm, x x x, x x. g MA40T et g Shipping. g he must e operated from a supply for line operation. o er supply voltages may e used, ut the output po er ill e reduced. See po er de rating ta le on page.

5 imensions. mm. mm. mm

6 imensions. mm. mm. mm

7 erformance raphs ine ttenuation ine E d B r d B r k 2k 5k 10k 20k Hz k 2k 5k 10k 20k Hz ine re uency esponse ohms ohms icrophone re uency esponse ohms ohms d B r d B r k 2k 5k 10k 20k Hz k 2k 5k 10k 20k Hz o er vs Supply oltage o er vs Supply oltage POWER OUTPUT (W) k Actual Speaker Output Power MA40T power output 24 V 12 V DC INPUT VOLTAGE (V) Power tap setting of speaker

8 rchitect s and Engineer s Specification he single channel amplifier shall e availa le in t o versions one ith a lo impedance output a le to deliver into a ohm load, the other ith a transformer coupled high impedance output suita le for driving line, line or line loudspea er distri ution systems, also a le to deliver a po er output of. he output shall e via plug in scre terminal connectors on oth versions. he amplifier shall e e uipped ith t o un alanced stereo line inputs and an electronically alanced microphone input the line inputs shall e summed internally to mono the music channel, and mixed ith the microphone input. Each of the three inputs shall have rear panel sensitivity controls of the preset type. he front panel shall e fitted ith a microphone level control, separate level controls for each line input and and e ualisation controls for the music channel. hantom po er shall e availa le at the microphone input, selecta le y an internal umper. n alternative microphone input shall also e provided, hich should e suita le for connection directly to either a line or line loudspea er system. ll input connections shall e via plug in scre terminal connectors. here shall e visual indication on the front panel if any input signal activates the amplifier s clip protection. control input shall e provided to activate the microphone input y external contact closure. t shall e possi le to configure the mixer such that this function is overridden and the microphone input is al ays active. t shall also e possi le to configure the mixer to perform the follo ing functions i detection of a signal on the microphone input ill automatically mute the music signal, ii detection of a signal on one line input ill automatically override the other. t shall e possi le to select all configurations, including the choice of microphone input, ithout removing any part of the amplifier housing. n external control input shall e provided on a plug in scre terminal connector to allo muting of the music channel y a fire alarm or other external emergency system via isolated, volt free contacts, and this input shall e configura le to respond to either a short or open external circuit. here shall e visual indication of the mute input s state on the front panel. he amplifier shall e compliant ith the relevant provisions of EnergyStar Elegi ility Criteria er.. for udio ideo roducts. n the a sence of an input signal, it shall automatically enter stand y mode herein the C po er consumption shall e less than. t shall e possi le to override this mode y an internal umper. he amplifier shall e uilt in a ro ust steel housing suita le for installation in unattended locations. Cooling shall e y natural convection. oth versions of the amplifier shall e supplied ith an external C po er supply capa le of operating on any C mains supply voltage from to, ho ever the lo impedance output version shall e capa le of operating from a C po er supply in the range and the maximum output po er of shall e availa le hen the amplifier is operated from a supply of or higher. he po er input connector shall e of the plug in scre terminal type. here shall e colour coded visual indication of the amplifier s po er status i.e., active or stand y modes on the front panel. he amplifiers shall e the Cloud lo impedance output and Cloud line output. he optional active module shall e the Cloud Series. he amplifier shall e provided ith a multi function control port using a connector of the type. n optional active input module shall e availa le hich may e ired to this connector using standard screened Category ca le, ena ling external mic and or line level signals to e routed to the one from a remote location. he connector shall also permit the direct connection of a alanced audio source, and provide C po er for the remote plates. t shall e possi le to control the level of the music channel via this port. ssue. E E