Blackstar Artisan 15 User Manual download pdf (Page 5)

rich harmonic distortion. The EF86 also adds its own particular compression and

distortion avour to this channel making Channel 2 a dream to record with.

Transformers

All Artisan transformers are traditionally made from the highest grade materials to

Blackstar’s demanding sonic and reliability specications.

Output Transformers

The design of the output transformers is critical to ensuring highly responsive feel

and a full natural frequency response.

All the Artisan output transformers are constructed using laminations made of

the highest grade, grain oriented steel. This minimises core losses and ensures

optimum delity and dynamics.

Mains Transformer

The Artisan mains transformers are also constructed using laminations made of the

highest grade, grain oriented steel. This minimises stray magnetic elds which can

be a source of unwanted noise and hum.

Channel Blending

The Artisan 15’s topology allows the blending of the two channels. By paralleling the

guitar connection to the inputs of Channel 1 and Channel 2 (see Figure 1 and Figure

2 below) endless tonal variations can be explored.

Figure 1 Figure 2

English

Front Panel

Channel 1

1. Hi Input

This is the high sensitivity input of Channel 1. This input has 6dB more (i.e. twice

as much) gain as the Lo Input. Use this input if you wish to achieve power amplier

break-up and overdrive. Always use a high quality screened guitar lead.

2. Lo Input

This is the low sensitivity input of Channel 1. This input has 6dB less (i.e. half as

much) gain as the Hi Input. Use this input if you wish the amplier to remain clean

(this is especially useful if the guitar used has high output pick-ups). Always use a

high quality screened guitar lead.

3. Volume

This controls the volume of Channel 1. The setting of this control deliberately

interacts with the Channel 1 Tone control’s response to maximise the sonic palette.

At low volume levels the amplier will produce exquisite, bell-like clean tones that are

denitively Class A in their character. As the volume is increased the tone becomes

fatter and more compressed as the power valves reach saturation. Further increases

in volume produce a wonderful tone as the power amplier valves move into full

distortion. This type of valve power amplier clipping produces the most natural

guitar distortion of all which reacts to every nuance of the guitarist’s playing style.

4. Tone

This passive control affects the tonal characteristics of Channel 1. Its response

deliberately relies on the setting of the Channel 1 Volume control to allow the most

versatile sonic palette. Fully counter-clockwise the tone is thick and dark, turning it

clockwise increases the amount of treble and the tone becomes more shimmering

and bright.

Channel 2

5. Hi Input

This is the high sensitivity input of Channel 2. This input has 6dB more (i.e. twice as

much) gain as the Lo Input. Always use a high quality screened guitar lead. Use this

input if you wish to achieve power amplier break-up and overdrive.

6. Lo Input

This is the low sensitivity input of Channel 2. This input has 6dB less (i.e. half as

much) gain as the Hi Input. Always use a high quality screened guitar lead. Use this

input if you wish the amplier to remain clean. This input is especially useful if the

guitar used has high output pick-ups.

7. Volume

This controls the volume of Channel 2. Turning it clockwise increases the volume.

As with Channel 1 natural warmth of power amplier distortion dominates the

Channel 2 character. However, as the EF86 provides higher gain and its own unique

compression characteristics, Channel 2 will provide higher levels of distortion. This

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Blackstar Artisan 15 User Manual Page 5

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