Congratulations on your purchase of the U-Sound OP 50 Guitar Ampli er!
This development is the result of almost 50 years of research and experimentation in the creation of guitar devices
by Russian engineer and guitarist Oleg Vorokha.
This is a Plexi Style ampli er with very advanced modern features.
The OP 50 is a 50 watt tube head with 2 EL34 output tubes and 4 ECC83 (12AX7) tubes.
The availability of three channels with various adjustments allows the OP 50 to be used in a wide variety of styles of
music - from blues to classic rock, hard rock, as well as for powerful metal riff attacks.
Special adjustment “Master Volume” allows using the device not only on large concert halls, but also in ordinary home,
without losing the powerful sound structure.
You will immediately notice the rich lows and excellent "readability" of chords, even at high Gain levels.
At the same time, the ampli er perfectly "friends" with the volume knob of your guitar.
If you are a fan of all kinds of guitar effects pedals - from conventional overdrive and distortion, to all kinds of
modulation effects, the OP 50 allows you to further diversify the palette of your musical fantasies.
The presence of a very transparent FX "loop" is another feature of the ampli er. You can practically use
any guitar processor by including it in Send-Return.
Each of the knobs and other controls on the OP50 will be described below.
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Summary of Contents for OP 50
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