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6) FREQUENTLY ASKED QUESTIONS
How do I hook up this thing?
- See Section 2, beginning on page 3.
When I plug effects into the effects loop, my tone noticeably changes. Sometimes the effects don't sound quite right. What's
the deal?
- Generally, what you're hearing is a significant mismatching of impedances, and/or an overloading of the effect
unit itself. Most rack-mount units have different input impedance than pedals, and thus can sometimes
function fine without a buffer before them. In addition, some of these rack-mounted effects can pad the
volume they receive, preventing it from overloading. Pedals do not have proper input impedance or padding
ability, and therefore do not play nicely.
- For best results, an effects loop interface like the C-lator or Klein-ulator should be used with the OTS
amplifiers. These units prevent impedance mismatching, as well as provide the ability to pad down the
volume sent to the effects units hence preventing any overloading.
Can I substitute different tube types for the 12AX7/ECC83s or 6V6s?
- Although you can try 12AT7s, 12AU7s, 5751s without any harm, the design is optimized for 12AX7s, and are
therefore the only recommended tube in the preamp positions. Usage of other power tubes is not
recommended for the OTS 20W Mini.
What settings do you recommend?
- Try setting all controls at 12:00, and adjust MASTER to a suitable volume.
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