Vintage / Modern Switch; Channel Selection; Channel 2; Input - YORKVILLE Traynor Custom Valve YCV4050 Mode D'emploi

5. Vintage / Modern Switch

The voice of Channel 1 can be modified from a smooth "vintage" voice to a more aggressive "modern" voice.

6. Channel Selection

Select between Channel 1 and Channel 2, also see Footswitch Jack.

Channel 2

7. Input

Channel 2 is the clean channel and thus has no Gain control. In other respects the layout is the same as that of
Channel 1, with independent Volume and Treble, Bass, and Middle tone controls. When channel 2 is active the
green LED located next to the Channel 2 Volume control is illuminated.

8. Brightness Switch

Channel 2 includes a Brightness switch that activates a circuit to provide additional treble boost to help make
your tone sparkle.

9. Volume Control

Channel 2 uses a Volume control to control the amount of tube-based overdrive and volume. The Volume control al-
lows you to set the actual loudness of the amplifier.

10. Channel 2 Tone Controls

The Treble, Bass, and Middle tone controls are used to help you shape your sound. They are post-gain and pre-
volume. These are active only when Channel 2 is selected.

Master Controls

11. Master Volume

The Master Volume control adjusts the overall volume of the amplifier.

12. Reverb Control

The Master Control section also includes a rotary Reverb control that adjusts the overall reverb level for both chan-
nels. The YCV4050 is equipped with a long-style Accutronics® dual-spring reverb for authentic vintage reverb.

13. Power, Standby and Indicator

The Power switch and receptacle are located on the rear panel. The standby switch controls the high voltage power
being supplied to the tubes. This mode effectively keeps the tubes warmed up when the amp is not in use. The
large, jewel indicator on the front panel glows Red when the amp is fully powered-up and changes to Yellow when
the high voltage circuit has been turned off. Putting the amp into Standby mode (i.e. during set breaks) shuts off the
amplifier output stage and effectively increases tube life by reducing wear on the tubes.
14. EFX / LINE Send & Return
The Send and Rtn jacks of the YCV4050 allow convenient use of an external effect unit. Simply connect a 1/4 inch
phone cable to the Send jack of the YCV4050 and then connect this cable to the Input of your effects unit. To send
the processed signal back to the YCV4050, connect the output of the effects unit to the Rtn jack of the YCV4050.
The 1/4 inch TRS Send jack can be used as part of an effects loop in conjunction with the Rtn jack. It can also
be used as a direct line out (preamp-out). The -10dBu output is ideal for most guitar effects pedals and professional
signal processors. You can also use this output to slave the YCV4050 with another guitar amplifier by plugging into
the Rtn jack of the slave amplifier.
The 1/4 inch TRS Rtn jack can be used as your return jack for your effects loop. It accepts an input signal that is
passed to the power amplifier, so it can be used as a power amp in. The Master Control section regulates the signal
so you can still add Reverb..

15. Footswitch Jack

Connecting a footswitch to the 1/4 inch TRS Footswitch jack deactivates the control panel mounted Channel Select
and Boost switches. These functions are then activated exclusively by the pedal. The included footswitch features
dual-latching switches, each with a separate LED indicator.
The switching is accomplished with internal relays so there is no audiable noise flowing through the foot-
switch cable. Footswitch-induced noise is never an issue. The YCV4050 is compatible with most aftermarket
latching dual-footswitch pedals.

16. External Speaker Jack/s

These under-the-chassis mounted 1/4 inch jacks allow convenient connection of an 8-ohm external speaker cabinet.
If you disconnect the internal 12 inch Celestion® speaker, you can connect up to two 8-ohm external cabinets.
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