L'idée serait d'avoir un seul baffle, un bon 15' ou un bon 4X10'. Je pensais que la double sortie était un standard.
A vrai dire, tant qu'en mono je peux alimenter un baffle correctement en ayant une qualité sonore suffisante, je suis preneur. Je n'ai jamais eu de stack double corps par commodité (en terme de transport et d'usage), du coup autant se concentrer sur un poweramp avec un mode bridge.
Concernant la sortie XLR, elle est boostable sur la pédale mais pas sur le combo Landmark 120 (-20dB). Les données sont les suivantes:
LANDMARK 120 SPECIFICATIONS
For live gigs, you can use this output to go direct into a PA system or to chain with our own Bass Power Engine 60™ powered extension cabinets, in mono or stereo. (See sample Hook-up Diagrams and refer to “Optional Accessories” in the Specifications for more information.)
Note: With on-going product development and improvements, specifications and/or
the cosmetic appearance of this unit may change without prior notice.
Model Number: LM120
Input Impedance: 1MOhm
Nominal Input Level: -10dBu
Optimal Output Load: 16 Ohms
Power Output: 120W
Effect Loop Input Impedance: 1MOhm
Effect Loop Input Level: approx. -6dBu*
Effect Loop Output Impedance: 1KOhm
Effect Loop Output Level: approx. -20dBu*
XLR Output Level: approx. -20dBu*
*Measured using a -10dB 400Hz test signal with all amp controls flat (12 o’clock).
Sansamp Bass Driver Programable
BALANCED XLR OUTPUT: Balanced 600-Ohm low Z output. Sends effected or bypassed signal to mixing console/recorder.
XLR Out Pad Switch: -20dB pad to match the output to equipment with different input level requirements. In the line level
(up) position, the output is 0dB. In the instrument level (down) position, the output is -20dB.
1/4” OUTPUT: Unbalanced 1KOhm low Z output. Sends effected or bypassed signal to amp rig or power amp.
1/4” Out Boost Switch: +10dB boost to match the output to equipment with different input level requirements. In the instrument
level (up) position, the nominal output is -10dB. In the line level (down) position, the output is 0dB.
PHANTOM POWER
Allows you to “tap into” the power of a suitably equipped mixer, which, today, most are.As the 3-conductor
XLR sends the audio signal to the input of a mixer, the mixer sends voltage back to the unit via the same 3
wires, eliminating the need for an external power supply. Consult your mixer’s owner’s manual for set-up
instructions. For live and studio use, let the engineer know your SansAmp Bass Driver DI is phantom power
operable.
PHANTOM & GROUND CONNECT SWITCH: When engaged (depressed), the ground connects
and unit will accept phantom power through the XLR Output. Disengaged (up), the ground of your stage
system and other interconnected gear is lifted/isolated from the ground of the mixing console.
With a mixer only: If you are plugging your bass into the Bass Driver and taking the XLR Output to a
mixer --and do not have any other grounded equipment connected in the setup-- you will have to
engage (depress) the switch to connect the ground and activate the phantom power.
With a mixer and bass amp: If you are going to the mixer via the XLR and using the 1/4” Output to feed
a bass amp (with its own AC ground), you should set the switch in the up position for “Ground Lift” mode. If
you experience hum and/or buzz with the switch in either position, there is probably a problem with the AC
outlets you are plugging into.