MARSHALL AS50D - Guitar amp

AS50D - Guitar amp MARSHALL - Free user manual and instructions

Find the device manual for free AS50D MARSHALL in PDF.

📄 36 pages English EN Download 💬 AI Question 11 questions ⚙️ Specs
Notice MARSHALL AS50D - page 3
Pick your language and provide your email: we'll send you a specifically translated version.
Product type Acoustic combo amplifier
Brand Marshall
Model AS50D
Power 50 W
Channels 2 (multi)
Inputs 2 instrument jacks, 1 XLR input with phantom power, 1 Aux phono input (RCA)
Outputs DI output, line output, parallel effects loop
Controls Volume, bass, treble per channel; chorus (speed, depth, assignment); reverb (balance, level); anti-feedback phase; notch filter with frequency sweep; master volume
Speakers 2 × 8" + 1 tweeter
Weight 14.1 kg
Dimensions (H × W × D) 565 × 415 × 250 mm
Included accessories Detachable power cord
Power supply Mains (rated voltage indicated on rear panel)
Maintenance and cleaning Disconnect before cleaning; use a dry, soft cloth
Safety Important safety instructions: read the manual, check electrical compatibility, use the correct fuse

Frequently Asked Questions - AS50D MARSHALL

What is the power output of the Marshall AS50D amp?
The amp has a power output of 50 W.
How many channels does the AS50D have?
It has 2 channels: one acoustic instrument channel and one microphone/auxiliary channel.
What types of inputs are available?
There are 2 instrument jack inputs (one per channel), 1 XLR input with phantom power for microphone, and 1 Aux phono input (RCA) for external source.
Is phantom power available on the XLR input?
Yes, the XLR input provides phantom power suitable for condenser microphones.
How to adjust the chorus effect?
The chorus effect is adjusted with the Speed and Depth controls. Assignment switches allow selecting the affected channel(s).
What is the anti-feedback phase switch?
It controls the amount of low-frequency acoustic feedback to reduce feedback.
How to use the anti-feedback notch filter?
Activate the Notch switch, then use the Frequency control to select the feedback frequency to reduce.
What outputs are available on the rear?
The rear panel offers a DI output, a line output (Line Out), and a parallel effects loop (send/return).
Can I use an external footswitch to control reverb and chorus?
Yes, a footswitch jack is available on the rear panel to enable/disable reverb and chorus.
What to do if the amp does not power on?
Check that the power cord is properly connected and the power switch is in the On position. If the problem persists, check the fuse (see manual).

User questions about AS50D MARSHALL

1 question about this device. Answer the ones you know or ask your own.

Ask a new question about this device

The email remains private: it is only used to notify you if someone responds to your question.

How to use the Marshall AS50D amplifier with an acoustic guitar?
Frequently Asked Questions - 01/04/2026
Response Notice-Facile

To use the Marshall AS50D amplifier with an acoustic guitar, follow these simple steps:

1. Connecting the guitar

Use a standard jack cable to connect your acoustic guitar to the instrument input of the amplifier. Make sure the amplifier is turned off when connecting to avoid any noise or damage.

2. Powering on

Turn on the amplifier using the main switch. Wait a few moments for the device to be ready to operate.

3. Adjusting the volume

Start with the volume at a low level, then gradually increase it until you reach the desired sound level without distortion.

4. Adjusting the equalization

Use the bass, mid, and treble controls to tailor the sound to your liking and the tone of your acoustic guitar. Feel free to experiment to find the sound that suits you best.

5. Using the built-in effects

The Marshall AS50D offers effects like reverb. Activate and adjust these effects according to your preferences to enrich the sound of your guitar.

6. Playing and fine-tuning

Start playing and listen carefully to the sound output. Adjust the volume, equalization, and effects settings according to your needs.

7. Powering off

Once your session is finished, turn the volume down to zero and then turn off the amplifier.

Tip: Be mindful of the sound level to protect your ears and avoid damaging the amplifier.

Respond (be the first)

Download the instructions for your Guitar amp in PDF format for free! Find your manual AS50D - MARSHALL and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. AS50D by MARSHALL.

USER MANUAL AS50D MARSHALL

Download the full manual at www.marshall.com

QUICK START GUIDE

Warning! Safety instructions 2

Specification 3

Front panel functions 4

Rear panel functions 6

FÉLICITATIONS POUR L'ACHAT DE VOTRE AMPLIFICATEUR AS50D.

WARNING SAFETY INSTRUCTIONS

Please read this manual carefully before plugging in. Follow all instructions and heed all warnings.

Warning: Please refer to full details in separate Important Safety Instructions CATS-90009.

Warning: Before going any further, make sure that your amplifier is compatible with your mains electricity supply. If you have any doubt, please seek help from a qualified technician - your Marshall dealer can help you with this.

MAINS INPUT & FUSE

The specific mains input voltage rating that your amplifier has been manufactured for is indicated on the rear panel of the amplifier. Your amplifier is provided with a detachable mains (power) lead, which should be connected to the mains input socket on the rear panel of the amplifier.

IMPORTANT SET UP INFORMATION

  1. Ensure that the power switch is set to the off position.
  2. Connect the supplied mains (power) lead into the mains input on the rear panel first and then into an electricity outlet.
  3. Ensure that the channel volume controls and master volume control on the front panel are set to zero.
  4. Plug your instrument into the channel 1 input jack socket on the front panel.
  5. You may also plug another instrument into the channel 2 input jack socket, and/or a microphone into the channel 2 microphone jack socket.
  6. Turn the front panel power switch on.
  7. Turn the volume up to your preferred level and your amplifier is ready to play.

TRANSPORTING YOUR EQUIPMENT

Please ensure that your amp is switched off, unplugged from the mains electricity supply and all removable cables have been disconnected from your equipment before attempting to move it.

FCC COMPLIANCE STATEMENT

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

  1. This device may not cause harmful interference, and
  2. This device must accept any interference received, including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules.

These limits are designed to provide reasonable protection against harmful interference in a residential installation.

This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and the receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/ TV technician for help.

Caution: Any changes or modifications not expressly approved by the party

SPECIFICATION

responsible for compliance could void the users authority to operate the equipment.

This device complies with CAN ICES-3(B)/ NMB-3(B)

The AS50D is a compact and portable 50W combo amplifier that delivers acoustic studio-quality sound. Designed for an abundance of acoustic instruments, the AS50D can accommodate instruments with magnetic pickups, piezos and microphones - dynamic or phantom powered. It is the perfect amp for the home or intimate acoustic gigs, no matter which instrument you are playing.

Model AS50DV
Power 50W
Channels 2 (with independent EQ controls)
Inputs2 instrument jacks 1 Phantom power XLR input 1 Aux phono input
Outputs DI out, line out, parallel effects loop
ControlsAcoustic channel 1 - Volume, bass, treble Microphone/aux channel 2 - Volume, bass, treble Chorus channel 1 power switch, chorus channel 2 power switch, chorus effect speed, chorus effect depth Reverb balance, reverb level Anti-feedback phase, anti-feedback notch, anti-feedback frequency sweep Master volume
Speakers 2 x 8" and 1 x tweeter
Unit weight 14.1kg
Unit width 565mm
Unit height 415mm
Unit depth 250mm
Accessories Detachable power cable included

FRONT PANEL FUNCTIONS

MARSHALL AS50D - FRONT PANEL FUNCTIONS - 1

CHANNEL 1 - ACOUSTIC INSTRUMENT CHANNEL

1. INPUT JACK

Guitar input socket.

2. VOLUME CONTROL

Controls the volume level of the Acoustic Channel 1.

3. BASS CONTROL

Adjusts the low frequencies of the amp. It will add bottom end and depth to your sound.

4. TREBLE CONTROL

Adjust the upper frequencies of the amp. Your tone will get brighter as it is turned up.

CHANNEL 2 - MICROPHONE / AUX CHANNEL

5. PHONO (RCA) INPUTS

Inputs to take a connection from an external source (such as an mp3 player or CD player).

6. MICROPHONE INPUT

XLR 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.

9. BASS CONTROL

Adjusts the low frequencies of the amp. It will add bottom end and depth to your sound.

10. TREBLE CONTROL

Adjust the upper frequencies of the amp. Your tone will get brighter as it is turned up.

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 the built-in Chorus effect.

13. CHORUS DEPTH CONTROL

Controls the amount of frequency shift for the built-in Chorus effect.

14. REVERB BALANCE CONTROL

Controls the balance of the Reverb effect between Channel 1 and Channel 2. This control also affects the effects loop.

15. REVERB LEVEL CONTROL

Controls the overall level of the Reverb effect.

16. PHASE SWITCH

Controls the amount of low frequency acoustic feedback.

17. NOTCH FILTER SWITCH

Cuts the frequency selected using the frequency control, to reduce feedback further.

18. FREQUENCY CONTROL

Select the frequency of the feedback you wish to reduce.

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.

REAR PANEL FUNCTIONS

MARSHALL AS50D - REAR PANEL FUNCTIONS - 1

1. MAINS INPUT

The supplied mains power lead is connected here.

2. FOOTSWITCH JACK

Jack socket for connection of the optional footswitch 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.

4. DI OUT

An emulated DI output allows you to connect to a recording device or sound desk.

5. EFFECTS SEND JACK

Sends signal to effects / outboard equipment.

6. EFFECTS RETURN JACK

Returns signal from effects / outboard equipment.

AVERTISSEMENT ! CONSIGNES DE SECURITE

Oedged, engineered & quality controlled by

Marhal Amphifcaln Pic, Htchthy

Milton Keynes, England

MADEINYETNAM

MARSHALL AS50D - AVERTISSEMENT ! CONSIGNES DE SECURITE - 1

MARSHALL AS50D - AVERTISSEMENT ! CONSIGNES DE SECURITE - 2

MARSHALL AS50D - AVERTISSEMENT ! CONSIGNES DE SECURITE - 3

MARSHALL AS50D - AVERTISSEMENT ! CONSIGNES DE SECURITE - 4

MARSHALL AS50D - AVERTISSEMENT ! CONSIGNES DE SECURITE - 5

Effects Loop

MARSHALL AS50D - AVERTISSEMENT ! CONSIGNES DE SECURITE - 6

1234

1. ENTRADA DE RED

Designated engineered quality controlled by

Marshall Amplification Pcs, Bitchow

MItton Keynes, England

MADEIN WETNAM

MARSHALL AS50D - ENTRADA DE RED - 1

MARSHALL AS50D - ENTRADA DE RED - 2

MARSHALL AS50D - ENTRADA DE RED - 3

MARSHALL AS50D - ENTRADA DE RED - 4

Effecto Loop

MARSHALL AS50D - ENTRADA DE RED - 5

D.Out Send Return

WUEITE

20V-60Hz

Footswitch Line Out

1234

13/14

m = 311 ;

5

i

6

1. 电源输入:

将电源线连接至此处。

2. 踏板开关接口:

Whilst the information contained herein is correct at the time of publication, due to its policy of constant improvement and development, Marshall Amplification Plc reserves the right to alter specifications without prior notice.

MARSHALL AMPLIFICATION PLC, DENBIGH ROAD, BLETCHLEY, MILTON KEYNES, MK1 1DQ, ENGLAND.

T: +44 [0] 1908 375411

MARSHALL AMPLIFICATION PLC
REGISTERED IN ENGLAND
REGISTERED NUMBER: 805676

M3311.387 | CATS-90019-v04

MARSHALL.COM

Manual assistant
Powered by Anthropic
Waiting for your message
Product information

Brand : MARSHALL

Model : AS50D

Category : Guitar amp