ENGLISH

USING THE DYNAMIC BASS SYSTEM

Make all the external connections such as the send (26) and return (27) to and from your effects processor, the output to your guitar tuner (25) and connection to the footswitch for the graphic EQ (20) if required.

If you are extending the system by linking to a further D.B.S. amplifier, take a screened guitar cable from the link-out jack (22) of the controlling amplifier to the link-in jack (21) of the slave system.

Check that the Speakon connectors are fully located, twisted and locked at both the cabinet and amplifier ends (see diagram) before switching on your D.B.S amplifier. Note: (When systems are linked together always switch on the master system before switching on the slave system and vice versa on switching off).

Select the correct input to match your bass.

Generally speaking the low-sensitivity input (2) suits bass guitars of high output levels e.g. active basses and the high sensitivity input (1) suits lower output instruments (passive basses). As there are so many different output levels from the many types of instrument available to you, you should try both before making the decision.

Set the primary EQ to flat and make sure that the deep (6), bright (5), compression (10) and graphic EQ switches (14) and the master volume control (15) are all off.

By turning the Gain control (3) until the peak LED lights occasionally you will be setting the optimum level of input gain. Too little means that the amp is working inefficiently, too much can cause unwanted distortion.

The gain control (3) may need to be backed off accordingly if you boost the EQ, especially in the lower frequencies.

Note: (Even with the gain control off you will still get a sound through the speakers on turning up the master volume).

Turn up the master volume to the desired level and set-up your basic sound using the primary EQ controls (7&8) combined with the deep and bright switches (5 & 6). The character of the sound can be changed using the pre-amp blend control (4) from the brighter more percussive solid state tone to the warmer more compressed vintage valve tone.

When using the built in compressor the compression threshold is set using the gain control (3) and the amount of compression by the depth control (11).

The clean power of the D.B.S is so dynamic that you may not need any further EQ although any amount of fine tuning of tone can take place using the 9 band graphic equaliser. Alternatively you can set-up an entirely different sound on the graphic then use the footswitch to switch between the two. This incredible clarity also means that you won’t have to compromise your EQ settings as the volume increases , as is often the case with normal bass amplification.

SPEAKON CONNECTORS

1.Ensure locking ring (A) is rotated fully Anti-clockwise. Insert Speakon connector into socket and align key ways.

2.Rotate body of the connector (B) fully Clock-wise.

3.Rotate locking ring (A) Clock-wise to it's full extent.

A

B

Note: (Reverse above procedure to remove connector).

MOUNTING THE 7400 IN A RACK

Though your 7400 Dynamic Bass System amplifier comes supplied in a purpose built 3U sleeve, it is also rack mountable. As with all rack mount products of substantial weight, we strongly recommend that you ensure that it is adequately supported using suitable brackets at the rear as well as the front.

(See Rear Panel diagram for positions of fixing bolts).

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Marshall Amplification DBS 7400 manual Using the Dynamic Bass System, Speakon Connectors, Mounting the 7400 in a Rack
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DBS 7400 specifications

Marshall Amplification is synonymous with high-quality guitar amplification, and among its renowned products is the DBS 7400, a versatile and powerful bass amplifier. This innovative amp was designed to cater to the needs of bassists looking for both performance and reliability. With its unique combination of features, technologies, and characteristics, the DBS 7400 stands out as a solid choice for bass players of all levels.

At the core of the DBS 7400 lies its impressive power output. It delivers a staggering 400 watts of RMS power, ensuring that it can handle any performance scenario, from small gigs to larger venues. This amp is well-suited for various musical styles, making it an ideal choice for versatile musicians who switch between genres. The power provides not only volume but also clarity and depth, allowing bass notes to resonate without losing their punch.

One of the standout features of the DBS 7400 is its comprehensive EQ section. The four-band equalizer allows musicians to shape their tone precisely, with controls for bass, midrange, and treble frequencies. Coupled with a presence control, this feature enables players to fine-tune their sound, ensuring they achieve the desired sonic character for any setting, whether in the studio or on stage.

The inclusion of a built-in compressor is another defining characteristic of the DBS 7400. This technology aids in achieving a balance in dynamics, making sure that louder notes don't overpower softer ones. The compressor is invaluable for maintaining consistent sound quality, particularly during live performances where dynamics can vary dramatically.

Additionally, the DBS 7400 is equipped with an effects loop, allowing users to integrate their favorite pedals easily. This feature opens up creative possibilities for bassists, enabling them to experiment with various effects without compromising the integrity of their tone.

Durability is also a critical aspect of the DBS 7400 design. Built with robust materials, this amplifier is constructed to withstand the rigors of touring musicians, ensuring that it remains reliable gig after gig.

Overall, Marshall Amplification’s DBS 7400 combines power, versatility, and technology in a user-friendly package. With its impressive features, it caters to the diverse needs of bass players, making it a compelling option for those seeking to elevate their sound.
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