AS50D Handbook - Marshall Amplification
Contents
1. until the offending frequency is eliminated 19 Master Volume Controls the overall volume output from the amplifier 20 Power Switch This is the On Off switch for the mains power to the amplifier When it is switched On the switch will light Please ensure the amplifier is switched off and unplugged from the mains electricity supply before being moved Rear Panel Features Technical Specification 1 Mains Input Your amp is provided with a detachable mains power lead that is connected here The specific mains input voltage rating that your amplifier has been built for is clearly marked on the back panel Before connecting for the first time please ensure that your amplifier is compatible with your electricity supply If you have any doubts please get advice from a qualified person Your Marshall dealer can help you in this respect 2 Footswitch Jack Jack socket for connection of the optional footswitch model PEDL 10029 for switching the Reverb and Chorus functions on and off 3 Line Out Jack Jack socket for connection to home recording or other external equipment with jack inputs 4 DI Out XLR type output for connection to PA or similar external equipment Note Both the Line Out and DI out carry exactly the same signal at different levels and both are placed before the Master Volume so changing the overall level of the amplifier will not affect the signal from the DI or Line Output 5 Effec2. 1 From the Chairman I would like to thank you personally for selecting the AS50D Acoustic Soloist combo The Marshall name has been associated with many fine products over the years and our commitment to quality remains as constant today as it did right back at the birth of Marshall Amplification back in 1962 In the case of the Acoustic Soloist much time and research has gone into making the sound as natural as possible As all of my designers are also guitarists they fully understand the needs of the player and bring their expertise to bear on all our products You can also rest assured that every Marshall amplifier has been designed and engineered to the highest possible standards so as a result will stand the test of time and constant use I strongly suggest that you read this handbook carefully before using your AS50D and then keep it on hand for future reference I am certain that you will get great enjoyment from your Marshall Acoustic Soloist combo and wish you every success with it Yours Sincerely English English Introduction The AS50D is a compact and portable 50 Watt combo amplifier specially designed for use with acoustic instruments Between its two channels this combo has the flexibility to handle instruments with transducers such as piezo or magnetic pick ups channel 1 or microphone for either vocal or instrument reproduction channel 2 The built in Chorus effect is assignable to either or both channels and th
3. e Reverb can be controlled and balanced between the channels to create just the right ambience If you want to add further effects then there is an on board parallel effects loop which can be balanced between the channels in the same way as the Reverb One of the most difficult aspects of amplifying some acoustic instruments is feedback To help you eliminate this the AS50D features several anti feedback controls including a Phase switch and a frequency controllable Notch Filter The combination of these two elements will give you precise control of the frequencies where feedback is likely to occur and help you to eliminate them For clear and detailed performance the AS50D is loaded with two 8 speakers and a high fidelity polymer dome tweeter There is also an internal limiter which allows you to push the maximum level from the 50 Watt output whilst remaining distortion free Neat and compact flexible and portable the AS50D is the ideal amplifier for the acoustic player who wants a system as suitable for small gigs as it is at home Front Panel Features Channel 1 Acoustic Instrument Channel 1 Input Jack Plug the lead from your guitar in here The high impedance of this input will help you to get the best from the passive or active piezo or magnetic pick ups 2 Volume Control Controls the volume level of the Acoustic Channel 1 A good place to start with this control is the half way or 12 o clock position then adju
4. nce 1M Line Output Level 10dBV FX Send 4dBV Microphone Input Impedance 1k Weight 16kg Size mm 542 x 416 x 261 Fotograf a Dr Jim Marshall OBE y su hija Victoria Directora General 16 17 R L Volume Power 0 10 Level 0 10 Depth 0 10 Speed 0 10 Volume 0 10 Volume Input 0 10 Notch Phase Ch2 Ch1 Acoustic Channel 1 Acoustic Channel 1 Chorus Chorus Reverb Loop Reverb Loop Reverb Reverb Anti Feedback Anti Feedback Master Master Microphone Aux Channel 2 Microphone Aux Channel 2 Bass Input Treble Balance Ch1 Ch2 Frequency 80Hz 1kHz Bass Treble Aux Microphone 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 18 19 20 17 16 1 2 3 4 5 6 AS50D Front Panel AS50D Rear Panel INSTRUMENT VOL VOL BASS TREBLE BASS TREBLE BALANCE REVERB LEVEL NOTCH PHASE LINE OUT PA D I MASTER CROSSOVER DRIVER TWEETER LIMITER 1 DEPTH FOOTSWITCH FOOTSWITCH SEND RETURN FREQUENCY CH 2 CH 1 TAPE IN MIC AUX SPEED CHORUS AS50D Block Diagram
5. st according to the sensitivity of your pick up 3 Bass Control Adjusts the amount of bass or bottom end of the instrument s tone Care should be taken when setting this control as adding excessive bass can cause unnatural howling Again the half way position is the best place to start 4 Treble Control Adjusts the treble or top end of your sound Careful adjustment will make your high notes lively but not too harsh It is worth noting that set in higher positions this control will induce a certain amount of noise Channel 2 Microphone Aux Channel 5 Phono Inputs Inputs to take connection from a tape or CD player 6 Microphone Input Balanced XLR type input for connection of a microphone and suitable for vocal or instrument applications This input supplies phantom power 7 Jack Input Input to take any source such as a drum machine keyboard etc 8 Volume Control Controls the volume level of the Microphone Aux Channel 2 A good place to start with this control is the half way or 12 o clock position then adjust according to the sensitivity of your pick up 9 Bass Control Adjusts the amount of bass or bottom end of your sound Care should be taken when setting this control as adding excessive bass can cause unnatural howling Again the half way position is probably the best place to start 10 Treble Control Adjusts the treble or top end of your sound Careful adjustment will make yo
6. ts Send Jack Jack socket to connect to the input of an external effects processor 6 Effects Return Jack Jack socket to connect to the output of an external effects processor De Jim Marshall Me gustar a agradecerte personalmente el haber elegido el combo de guitarra ac stica AS50D El nombre Marshall ha estado asociado a equipos de amplificaci n de primera l nea durante estas ltimas d cadas y hemos mantenido celosamente nuestro compromiso con la calidad desde el nacimiento de Marshall Amplification en 1962 En el caso de nuestros amplificadores de ac stica no hemos escatimado tiempo ni esfuerzos hasta lograr un sonido lo m s natural posible Puesto que todos mis dise adores son guitarristas tenemos un profundo conocimiento de las necesidades de los m sicos y esto queda patente en todos nuestros productos Adem s puedes tener la seguridad de que todos y cada uno de los amplificadores Marshall son dise ados y construidos bajo los m s estrictos est ndares de calidad y de que est n preparados para el examen del uso continuado durante a os Te sugiero que leas este manual antes de usar el AS50D y que lo conserves como referencia en el futuro para poder obtener el m ximo rendimiento Quiero desearte xito en todos tus proyectos musicales y felicitarte por tu nuevo Marshall AS50D que estoy seguro que te acompa ar muchos a os Un cordial saludo Espa ol Power Output 50W RMS into 4 Main Guitar Input Impeda
7. ur high notes lively but not too harsh It is worth noting that set in higher positions this control will induce a certain amount of noise Master Section 11 Chorus Assign Switches Allows the built in Chorus effect to be selected on either channel individually or both channels together 12 Chorus Speed Control Controls the speed of change of frequency for the built in Chorus effect 13 Chorus Depth Control Controls the amount of change of the frequency shift for the built in Chorus effect Dr Jim Marshall OBE and daughter Victoria Managing Director 2 3 English Note When using the Chorus higher speed settings usually sound better with lower depth settings and vice versa Experiment to find which selection suits you best 14 Reverb Balance Control Controls the balance of the Reverb effect and the parallel effects loop between Channel 1 and Channel 2 15 Reverb Level Control Controls the overall level of the Reverb effect 16 Phase Switch Switching the phase can considerably reduce the amount of low frequency acoustic feedback 17 Notch Filter Switch Further feedback reduction can be achieved using the selectable frequency notch filter When activated the filter cuts by 10dB the frequency selected using the rotary control item 18 18 Frequency Control If feedback occurs when the Master Volume is set to the desired performance level select the switch item 17 and rotate this control
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