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All manuals and user guides at all-guides.com
1. The Power and Standby Toggle Switches
Due to the nature of vacuum tubes, we suggest the
YBA300 be powered up for a few minutes prior to
using. This will allow the tubes to warm up. The pilot
light glows red when the amplifier is engaged; it
glows amber when in Standby mode.
Note: Before powering up and disengaging the
Standby switch make sure speaker cabinets are
connected to the output jacks.
When the amplifier is warmed up, disengage the Standby switch and get ready to
experience the classic tone of a Traynor Bassmaster All-Tube Amplifier.
Note: It's also recommended to leave the amplifier powered up during set breaks, The Standby
switch cuts all output from the power amplifier.
Inputs
0
Passive
2. 0dB / Passive and -6dB / Active Input Jacks
The YBA300 is equipped with two input jacks. The 0dB/Passive input feeds the first tube
input-stage directly while the -6dB/Active input applies a pad to it. The -6dB input is usually
used for bass guitars that have active pickups, or extremely hot levels.
3. Deep Switch
The YBA300 is equipped with a Deep switch to help accentuate deep bass and treble frequencies.
4. Bright Switch
The Bright switch provides a small amount of treble boost for added presence. The effect is
more pronounced at lower gain settings.
5. Resonance Switch
The Resonance switch is placed in the output stage of the power amplifier and controls the
amount of low frequency damping. Pushing in the switch reduces the damping factor and
allows the resonance of the speaker cabinet to be more pronounced.
Tip: Having the switch out will increase the damping factor and produce a tighter sound.
Gain
Bass
5
5
0
10
0
6. Gain Control
The Gain control is placed immediately after the first tube-stage and is used in conjunction with
the Master volume control to help achieve the proper sound and feel. This control also allows the
capability of giving a warm more saturated tube sound when turned up (even at low volume levels).
7. 3-Band Equalization and Frequency Control
The YBA300 features vintage passive Bass and Treble controls. Additionally, the tone
controls are equipped with a Frequency adjustable Mid control.
-6
Deep
Active
Mid
Frequency
5
10
0
10
200
2
Standby
Bright
Resonance
Treble
1.0K
5
3.0K
0
10
Hz
Power
On
Off
Master
5
0
10
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