Blackstar Series One 45 Owner's Manual download pdf (Page 6)

1110

English

16. Treble

The Treble control allows exact adjustment of the treble frequencies within the

sound. At low settings (counter clockwise) the sound will be warm and darker in

character. As the Treble control is increased (clockwise) the sound will become

brighter. At the maximum settings the sound will be aggressive and cutting.

17. ISF (Innite Shape Feature)

The patented ISF control works in conjunction with

the Bass, Middle and Treble controls. It allows you

to choose the exact tonal signature you prefer. Fully

counter clockwise has a more American characteristic

with a tight bottom-end and more aggressive middle,

and fully clockwise has a British characteristic which

is more ‘woody’ and less aggressive.

Unlike conventional ‘contour’ controls and parametric equalisation systems, the

Bass, Middle and Treble controls remain interactive with each other just like in a

traditional guitar amplier tone stack. This leads to a very familiar, musical response.

Master

18. Resonance

The Resonance control sets the overall bass response of the S1-45. At lower

settings the cleans will be tight and funky and overdrives will be focussed in their

bass response. At increased settings the clean sounds will be become full and

warm, whilst the crunch and overdrive tones will be more bass heavy and resonant.

19. Presence

The Presence control sets the overall treble response of the S1-45. Percussive high-

end can be accentuated on clean sounds and the amount of aggressive treble

controlled with crunch and overdrive settings.

20. Volume

This controls the overall volume of your amplier. Turning it clockwise increases the

volume.

21. DPR (Dynamic Power Reduction)

The patented DPR control allows the output power of the S1-45

to be reduced anywhere from 45W (100%) down to 4.5W (10%)

of the rated power.

DPR works by controlling the power supply voltages to the EL34

output valves and also the level of drive signal into the power

amplier stage. Importantly, there are no components placed

in between the output valves, the output transformer and the

loudspeaker – a relationship which is essential in the delivery of

valve tone.

In addition to reducing the output power of the S1-45, the DPR system actually

controls the amount of power amplier compression too. Power amplier

compression is a key ingredient in the characteristics of low powered valve amplier

tone and gives a very playable ‘feel’ to the S1-45 at reduced power settings.

We would recommend experimenting with the channel Gain and Volume, Master

Volume and DPR Control to achieve various combinations of preamplier and power

amplier distortion / compression.

Note: Generally speaking the more DPR is applied (i.e. power is reduced) the more

dynamic compression and power amp clipping will be experienced at any given

volume.

Clean DPR Operation

The DPR control is extremely powerful in ne-tuning the exact dynamic compression

characteristics of the power amplier.

Channel Channel Channel Master DPR Description/Sound Character

Gain Volume Volume

Clean Low Mid Mid High Maximum pre and power amplier

headroom yields extremely dynamic

clean sounds.

Clean Low High High Low Increasing drive to the power

amplier and reducing output power

gives a compressed clean sound rich in

power amplier induced harmonics.

Clean High High High Low Higher channel gain further increases

the power amplier drive producing a

‘full stack’ crunch tone at only 4.5W

output power.

Overdrive DPR Operation

The DPR control allows you to pin-point exactly how much valve overdrive you want

to come from the preamplier section and how much is coming from the EL34s in

the power amplier section.

Channel Channel Channel Master DPR Description/Sound Character

Gain Volume Volume

Clean Low/Mid Mid Mid High Lower gain settings provide a dynamic

crunch utilising the full 45W of

available headroom.

Clean Low High High Low At these settings there is a blend of the

distortion and compression generated

in the preamplier and power amplier

valves. We recommend that you

experiment to nd your ‘sweet-spot’.

Clean High High High Low Here maximum preamplier gain is

combined with the lowest power

amplier output for maximum valve

saturation.

1 2 3 4 5 6 7 8 9 10 11 ... 40 41

Comments to this Manuals

No comments

Blackstar Series One 45 Owner's Manual Page 6

Comments to this Manuals

Related products and manuals for Audio amplifiers Blackstar Series One 45