Thunderfunk Bass Amplifiers, Руководство пользователя, Страница: 13 / 22

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Effects Loop 1
This is a standard loop with low-impedance line level out and high-impedance line level back in.
The branch is after the Gain/Limiter, and Enhance controls, but before the EQ section and the
Timbre, Volume controls.
Effects Loop 2
This is also a standard loop with low-impedance line level out and high-impedance line level back
in. The branch is made after all the preamp features, including Gain/Limiting, Enhance, EQ, and
the Volume and Timbre controls. Plugging a ¼ inch jack into the Effects Send of this loop provides
a 1-volt maximum line level signal out. This can be routed to your choice of effects unit, a mixing
console, another power amp/speaker system, etc. The preamp is still routed to the internal Power
Amp. (NOTE: Some external power amps require more than 1-volt to be driven to full power.)
When plugging a line level return signal via the ¼ inch jack into the Effects Return of this loop, all
the preamp features are disconnected. Only the line signal from the inserted ¼ inch jack is sent
to the Power Amp. You can use the return signal for the device at the Effects Send of this loop,
or bring a mono signal from a mixing console or another preamp to the Power Amp input of the
Thunderfunk. This is where you would connect the special XLR to Phone jack cable, mentioned
in the Post EQ Balanced section of this manual, to connect or “daisy chain” several Thunderfunk
slave amps together, matching the setup with one set of preamp controls working all the Thun-
derfunk slave power amps.
Speaker Output
These two ¼ inch jacks are wired in parallel to accept traditional speaker connection cables. There
are also Speakon Connectors (the TFB420 has one, while the TFB550 has two) to accept modern
speaker connections. The total speaker system impedance may not be lower than 4 Ohms. Doing
so will void the warranty. Your speaker system should be chosen for the characteristics of your
amplifier, your style, and your application. If you will only be using one cabinet, a 4 Ω model will
draw the most power from your amplifier. If you will generally be using two cabinets, they should
be 8 Ω models so their combined impedance will be 4 ohms. Cabinets with 10” speakers sound
different than cabinets with 15” speakers.
Beware of 2x10 cabinets that are rated at 4 ohms. They will draw maximum power from the amp
and may not be rated for so much power. Adding a second 2x10 - 4 Ω cabinet will load the amp to
2 ohms, and could possibly overheat the amp depending on how hard it‘s driven.