Marshall VBA 400 Valve Bass Amplifier
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Marshall VBA 400 Valve Bass Amplifier, size: 447 KB
Marshall VBA 400 Valve Bass Amplifier
User reviews and opinions
|Jozvex||5:56pm on Sunday, October 24th, 2010|
|When I got this small, comfortably sized amp for christmas one year I absolutely fell in love.|
|new.learner||8:00am on Wednesday, October 13th, 2010|
|Amazing Simple to use (writing songs on first day of use), vast library of sounds from rich grand pianos to, well what you like really..|
|VDataP||7:07am on Sunday, July 25th, 2010|
|Ease of Use: Quality sound and effects, will save you a lot of money on the long run Hard to use at first.|
|arkangel||8:13am on Monday, April 26th, 2010|
|The Line 6 Spider III 210 is a 120 watt solid state amp with two 10" speakers, that comes complete with 12 different amp models, reverb.|
Comments posted on www.ps2netdrivers.net are solely the views and opinions of the people posting them and do not necessarily reflect the views or opinions of us.
VALVE BASS AMPLIFIER
From the Chairman
I would like to personally thank you for selecting our VBA400 valve bass head. Since I started Marshall Amplification in 1962 I have witnessed some incredible breakthroughs and advances in amplifier design technology, however there is an inescapable magical tone that comes from using a traditional Marshall valve amplifier. Furthermore it is a tone that is just as valid and just as much sought after today as it was all those years ago when I had my first shop in Hanwell, London. What time and progress has given us is the ability to make valve amps that are more versatile. The new Marshall VBA400 is just that, a classic valve amp for bass guitar, complete with all of the normal attributes that you would expect from a Marshall valve amp, such as warmth, compression, controllable musical distortion and of course that classic Marshall tone, combined with modern day versatility and safety features. As such, the VBA400 is a classic valve bass amp for todays player. I would like to wish you every success with all of your musical endeavours and also your new Marshall which I am sure you will find a pleasure to play for many years to come. Yours Sincerely,
A B C D E
WARNING! - Important safety instructions
WARNING: This apparatus must be earthed!
To fully compliment the VBA400 we have produced two specially designed cabinets, the 8x10 VBC810 and the 4x12 VBC412 which combine cool looks with classic Marshall tone. In order to get the most from your VBA400 please read this handbook carefully before plugging in.
F G H I J
PLEASE read this instruction manual carefully before switching on. ALWAYS use the supplied mains lead, if a replacement is required please contact your authorised Marshall Dealer. NEVER attempt to by-pass the fuses or fit ones of the incorrect value. DO NOT attempt to remove the amplifier chassis, there are no user serviceable parts. Refer all servicing to qualified service personnel including replacement of fuses and valves. Servicing is required when the apparatus has been damaged in any way, such as when the power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally or has been dropped. NEVER use an amplifier in damp or wet conditions. No objects filled with liquids should be placed on the apparatus. When cleaning, only use a dry cloth. ALWAYS unplug this apparatus during lightning storms or when unused for long periods of time. PROTECT the power cord from being walked on or pinched particularly at plugs, convenience receptacles and at the point where they exit from the apparatus. DO NOT switch the amplifier on without the loudspeaker connected. ENSURE that any extension cabinets used are of the correct impedance.
VBA400 Set-up guide
CAUTION!: TO REDUCE THE RISK OF FIRE REPLACE FUSES WITH THE SAME TYPE AND RATING ONLY. DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE. TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
DO NOT OBSTRUCT FAN EXIT
ATTENTION!: POUR EVITER LES RISQUES DINCENDIE UTILISER UN FUSIBLE DE MEME TYPE ET DE MEME CALIBRE. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE. POUR EVITER LES RISQUES DE DECHARGES ELECTRIQUES, NE PAS OUVRIR LE COUVERCLE. CET APPAREIL NE COMPORTE AUCUNE PIECE SUSCEPTIBLE DETRE REPAREE PAR VOS SOINS. FAITES TOUJOURS APPEL A UN TECHNICIEN QUALIFIE POUR TOUTE REPARATION.
Made in England by:
RETURN NORMAL EARTH LIFT
WARNING!: SHOCK HAZARD. DO NOT OPEN. TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. THIS APPARATUS MUST BE EARTHED. AVIS!:
RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR. POUR EVITER LES RISQUES DINCENDIE ET DE DECHARGES ELECTRIQUES, NEXPOSEZ JAMAIS CET APPAREIL A LHUMIDITE OU A LA PLUIE. CONNECTER CET APPAREIL A LA TERRE.
400 Watts RMS Into 2/4 Ohms
Marshall Amplification plc, Bletchley, Milton Keynes, England.
T10A T8A T4A
T4A T4A T2A 100V 120V 230V
230V ~ 50 Hz 900 Watts
WARNING!: RISK OF HAZARDOUS ENERGY! AVIS!: ENERGIE ELECTRIQUE DANGEREUSE!
REFER TO MANUAL FOR FULL DETAILS. SE REFERER AU MANUEL POUR PLUS DE DETAILS.
EUROPE ONLY - NOTE: This equipment has been tested and found to comply with the requirements of the EMC directive (Environments E1, E2 and E3 EN 55103-1/2) and Low Voltage directive in the E.U. EUROPE ONLY - NOTE: The Peak Inrush current for the VBA400 is 204 amps. CAUTION: Any changes or modifications not expressly approved by the party responsible for compliance may void the users authority to operate the equipment. NOTE: It is recommended that all audio cables used, with the exception of the speaker lead, to connect to the VBA400 are of a high quality screened type. These should not exceed 10 metres in length. Always use a non-screened Marshall approved speaker lead with the VBA400 Head and extension cabinets. WARNING: Do not obstruct ventilation grilles and always ensure free movement of air around the amplifier! USA ONLY - DO NOT defeat the purpose of the polarised or grounding type plug. A polarised plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. When the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
Recording or P.A. Equipment
VBA400 Front Panel Features (page 26) 1. Power Switch
Controls mains power to the amplifier, activating the valve heaters and other auxiliary circuits including the fan. This should be switched on before the standby switch.
The Bright switch adds high frequency presence, giving top end brilliance, crispness and bite to your sound.
Follow all instructions and heed all warnings - KEEP THESE INSTRUCTIONS !
Constant exposure to the high sound pressure levels of which this amplification system is capable could result in permanent damage to your hearing. Although individuals will vary in their susceptibility to noise induced hearing loss, almost everyone will have their hearing impaired if exposed to intense sound levels for a sufficient length of time. To prevent the occurance of permanent hearing loss, it is advisable to wear ear plugs or protectors if you are going to be exposed to high noise levels for prolonged periods.
2. Standby Switch
Controls the H.T. (high tension) supply to the valves to allow them to attain the correct working temperature before playing. To prolong the life of the valves it is always advisable to switch on the Mains Power Switch (item 1) about 2 minutes before switching on the Standby (item 2). This procedure allows the valves to heat up fully before use. On switching off, the Standby should always be switched before the Power Switch. The standby facility is particularly useful live, between sets, as it allows you to reduce the amount of heat generated by the amplifier but keep the valves operating, which is conducive to longevity of valve life. Valve life can be further increased by always ensuring that the amplifier is allowed to cool down completely after use and before transportation.
Controls the high frequencies of the bass guitar tone, making your sound brighter when increased.
Dictates the middle register of the amplifier. Turning this up will make your bass sound fatter. Conversely reducing the amount of middle in your tone will result in a sharper sound.
VBA stands for Valve Bass Amplifier and who better to make a bass amp powered by valve technology than Marshall Amplification? Over 36 years of designing and manufacturing world renowned high quality valve amps has given us priceless knowledge, experience and insight in the world of valve tone. The VBA400 gives you 400 Watts of Marshall valve power courtesy of 12 valves; power valves, 3 ECC83 classic Marshall pre-amp valves and 1 ECC82 valve. In addition to great tone, the VBA400 combines a number of other exciting and useful features. Situated on the rear panel of the amp is a Tuner Output which allows you to keep a tuner in line at all times (the bass is still plugged into the input on the front panel). Should you want to tune up during a live situation in silence, simply press the Tuner Mute facility button and both the sound to your speakers and to the DI will be cut off. All valve amps need to be connected to a speaker before use and failure to do so will result in serious damage to the amp. To ensure that you do not damage your VBA400 by inadvertently forgetting to plug your amp into a speaker, we have designed the unit so that power cannot be applied internally unless it is connected to a speaker. The VBA400 also features an instant overall tonal re-shaper in the form of a Contour control which has three pre-sets to allow you to dial in three different characters in an instant.
3 position control adjusting the overall tonal voicing of the amplifier. Position 1 tailors the response of the amplifier for smooth low end, restrained lower mids, and mild high end lift, to give the classic vintage valve bass tone. In position 2 the lower mid is made more prominent whilst simultaneously the upper mids are subtly scooped to give a more aggressive, growling quality to the amplifiers tone. Position 3 introduces a gentle overall mid boost for an immediate, cutting, in your face tone.
3. Master Volume
Governs the overall volume of the VBA400.
The Deep Switch adds a tuned or resonant bass boost to your sound, increasing bottom end thud, without making your tone woolly around the bottom end.
Controls the amount of low frequencies or bottom end in your tone.
The VBA400 is an all valve bass head and as such is ideally suited to creating thick musically overdriven tones or warm clean tones. If you require a clean bass sound turn this control up until your bass just starts to distort and then back it off slightly. If on the other hand you would like a distorted sound, simply turn up the Gain control until the required amount of distortion is achieved. Another tip, for those of you who have got active basses who want a distorted tone, is to try plugging your bass into the Passive Input. This will cause no harm and may provide the sound you are looking for.
may give you the sound that you are trying to capture. If you are using a Tuner in-line via item 1 on the rear panel, you should still use one of these inputs to connect your bass.
5. D.I. output
The VBA400 features a low impedance, balanced XLR D.I. Output for connection to professional recording or P.A. equipment. See Item 15 on front panel for more details.
This input is designed to take the signal from a passive bass. If your bass guitar is passive plug it in here. We recommend that you always use a high quality screened cable for this to help prevent noise, interference and unwanted feedback.
6. Impedance Selector
It is imperative that the output impedance selector on this amplifier matches the impedance of the speaker(s) that it is driving. The VBA400 delivers 400 Watts R.M.S. into 2 or 4 Ohms. Both the VBC810 and VBC412 cabinets are 4 Ohm cabinets. Therefore if you are using one cabinet ensure that the impedance selector is set to 4 Ohms, and if you are using 2 cabinets ensure that the impedance selector is set to 2 Ohms. Failure to do this can result in serious damage to the amplifier.
To ensure optimum cooling of the amplifier in all operating environments, the fan has two operating speeds, low and high. Low should be selected for normal operating situations. However, if this amplifier is going to be used in close proximity to other units generating appreciable amounts of heat, or if the ambient air temperature is high, the higher fan speed should be selected. The VBA400 features over temperature protection which will shut the unit down should internal temperatures become excessive, due for example to obstructed front or rear air vents. This protection is self-resetting after a period of approximately thirty minutes.
The VBA400 features a Tuner Mute facility. On the rear panel there is a tuner output, item 1, which allows you to keep a tuner connected permanently in-line. By pressing the Tuner Mute On/Off button, item 12 on the front panel, you will cut the sound to the speakers and to the DI output allowing you to tune up in silence.
This input is designed to take the signal from an active bass. If your bass guitar is active plug it in here. Again we recommend that you always use a high quality screened cable to help prevent noise, interference and unwanted feedback.
10. H.T. Fuse
Always ensure that the correct value fuse is fitted - see rear panel for details. If this fuse fails repeatedly, you should refer the amplifier to a qualified Marshall service agent.
15. D.I. pre-post selector
The VBA 400 features a D.I. Output, item 5 on the rear panel, designed for connection to professional recording or P.A. equipment. By selecting Pre, the signal for the DI will be taken from a point in the signal path before the front panel controls and will only be affected by the Tuner Mute, Item 12. This means that you will have no other influence over your sound being sent to the external recording or P.A. equipment connected to the D.I. output socket. By selecting Post, the signal for the DI will be taken after the Gain and Equalisation controls (but before the master volume control), giving you tonal and level control over the signal being sent to the external equipment.
7. & 8. Loudspeaker Outputs
For connection to VBC810 and or VBC412 cabinets. See above for impedance details. Always use short, high quality, heavy duty speaker leads to connect this amplifier to the loudspeaker cabinets. Two speaker leads are supplied with the amplifier for this purpose. Do not use screened, guitar type, leads.
11. L.T. Fuse
Always ensure that the correct value fuse is fitted - see rear panel for details. If this fuse fails repeatedly, you must refer the amplifier to a qualified Marshall service agent.
Indicates when the Tuner Mute facility is in use.
Allows you to switch the Tuner Mute facility on and off.
12. Mains Input
Connects the amplifier to the mains power supply. The VBA400 is able to operate on 100, 115 or 230 Volts A.C. (50-60 cycles) by appropriate selection of internal voltage setting links and fuse types. Should you require to operate your VBA400 at a different mains voltage to that which the unit was originally intended, refer the amplifier to a qualified Marshall service agent, who will make the required adjustments.
Though the Passive and Active inputs were designed around the signal from an active bass and a passive bass guitar respectively, you should experiment to see which input best suits your style. Dont worry, connecting your bass to the wrong input will not harm your VBA400 but
9. Fan Speed - Low & High
The VBA400 features 12 valves in total, 8 of which are power valves. Normal air convection would not be sufficient to keep such an amplifier cool, and the VBA400 therefore features a fan which sucks cool air through the front vent and pushes the resulting warm air out through the rear vent.
VBA400 Rear Panel Features (page 26) 1. Tuner Output
The Tuner Output allows you to keep a tuner inline at all times. See Tuner Mute in the Front panel Functions section for a full overview of this facility.
The valves fitted at the Marshall factory have been extensively tested and selected to ensure close matching of electrical characteristics, which, in conjunction with the amplifiers internal bias and balance controls (which are not user adjustable) should ensure long and reliable operating life. As with any valve amplifier, the valves (particularly the output valves) do not have an infinite life and will require replacement at some point. The life expectancy of a set of valves depends on many factors including how frequently the amplifier is used, the quality of the valves fitted and proper use of the mains and standby switches when powering the amplifier up and down. Signs that the valves are nearing the end of their useful operating life include loss of perceived output power, increase in valve microphony (detectable as a background ringing type noise) and deterioration in tone. When the time comes to fit new valves it is strongly recommended that only Marshall replacement valves, tested to the same specification as the originals, be used, and that these are installed by an approved Marshall service agent who has access to the measuring equipment required to set the internal bias and balance controls to optimally suit the new valves being fitted.
For connection to the output of an external effects processor.
4. D.I. Normal / Earth Lift
Linking one piece of earthed electrical equipment to another earthed piece of electrical equipment can result in an audible hum, due to the formation of an earth loop. In the past people would get round this problem by removing the earth of one of the appliances, which is of course extremely dangerous. The VBA400 features an Earth Lift which allows you to safely lift the D.I. signal earth on the amp, should you be experiencing earth loop hum problems.
The VBA400 features a series effects loop for optimum connection of external effects. As this is a series loop, all of the pre-amp signal is passed through the loop when in operation and the blend between dry and effects is determined solely by the setting of the mix facility on your chosen effects processor.
For connection to the input of an external effects processor.
VBA400 Front Panel
VBA400 Rear Panel
ATTENTION!: POUR EVITER LES RISQUES DINCENDIE UTILISER UN FUSIBLE DE MEME TYPE ET DE MEME CALIBRE. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE. POUR EVITER LES RISQUES DE DECHARGES ELECTRIQUES, NE PAS OUVRIR LE COUVERCLE. CET APPAREIL NE COMPORTE AUCUNE PIECE SUSCEPTIBLE DETRE REPAREE PAR VOS SOINS. FAITES TOUJOURS APPEL A UN TECHNICIEN QUALIFIE POUR TOUTE REPARATION. WARNING!: AVIS!:
SHOCK HAZARD. DO NOT OPEN. TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. THIS APPARATUS MUST BE EARTHED. RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR. POUR EVITER LES RISQUES DINCENDIE ET DE DECHARGES ELECTRIQUES, NEXPOSEZ JAMAIS CET APPAREIL A LHUMIDITE OU A LA PLUIE. CONNECTER CET APPAREIL A LA TERRE.
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