Traynor YBA200 Mode D'emploi page 5

Pre-Amp
Out
10. Pre-Amp Out and Power Amp In
The Pre-Amp Out and the Power Amp Input jacks provide versatility not usually associated
with vintage tube amplifiers. The Pre-Amp Out jack can be used to slave another YBA200
or as an effects send. The Power Amp Input goes directly to the YBA200's power amplifier,
bypassing the pre-amp, which allows a perfect effects return. The Power Amp Input also lets
the YBA200 be a true slave from another pre-amp.
Note: The output signal of the Pre-Amp Out is set at 0 VU. When using the Pre-Amp Out as
an effects loop it's recommended to use professional-grade signal processing equipment
(pedal effects might not have enough headroom).
11. Line Out XLR Jack and Selector Switch
The YBA200 is equipped with a unity gain, balanced D.I./Line output. You can select a direct,
clean signal (Pre-EQ setting which delivers the sound directly to the Balanced Line Out) or
tap the signal after the pre-amp (Post-EQ). Both signals are routed to the Balanced Line
Out before the Master volume. A Ground Lift (lifts Pin 1 of the XLR) and –20 dB attenuation
switch are also provided to help when routing signals directly to other equipment or mixing
consoles.
12. Speaker Impedance Switch and Speaker Output Jacks
Extension speaker cabinets are connected using the Speaker ¼-inch output jacks.
Connections to these jacks are in parallel. Using the Speaker Load switch, the output of the
YBA200 can be optimized to provide the rated full power (200 watts) for selected loads (8-
ohms or 4-ohms).
Note: As long as the total speaker load is not lower than 2-ohms, Speaker Load settings of 4-
ohms or 8-ohms are interchangeable. Choose the setting that sounds best to you.
SPLITTER
12AU7 12AX7
V3
POWER
KT88 KT88
V7 V4
DIS CONNE C T POWE R WHEN
RE PLACING T UBE S .
US E MAT CH E D T UBE S ONLY!
DÉ BRANCHÉ L'APPARE IL AVANT
DE RE M PLACE R LE S LAMPE S.
UTILLISEZ SEULEMENT DES TUBES APPARIÉS!
Pre-EQ -20 dB
Post-EQ Pad
Line Out
13. Replacement Tube Selection and Bias
PREAMP
Your YBA200 is supplied with a set of
factory-matched output tubes. When tube
12AX7
replacement becomes necessary, replace the
output tubes with a matched set to maintain
V2 V1
the highest performance of your amplifier.
KT88 KT88
V5 V6
3
Ground
lift
Amp In
gnd
Note: When changing output tubes, a
qualified technician should adjust the
amplifier's bias; readjusted for 40ma per
tube (80 mV at the test points).