Roar Quad 15, Руководство пользователя

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7
4.6 A
MP
O
UT
–
TO SLAVE
This output is designed to feed additional slave amplifiers to drive more speaker cabinets.
Modern light weight power amps of up to 2 x 500 watts are available in a single rack space
unit.
Connect a standard mono jack cable from the “AMP OUT – to slave” jack of the Quad15 to
the input of your slave amplifier and use the volume control on the slave amplifier to set
the sound level on stage or in the rehearsal room. This setup will retain the characteristic
sound of power tube overdrive and the interaction between power amp and speaker at all
sound pressure levels, from “couch” riffing (< 5W) to the big stage (> 100W).
This output is derived from the SPEAKER OUT via a simple resistive divider to achieve a line level signal
with an output resistance of ~ 200 ohm. When sending this signal to a low distortion/high power
amplifier (slave), the dynamics, damping and frequency response of the power tubes, output
transformer and speaker are replicated by the slave amp and additional speakers to retain the
authentic power tube tone at all sound levels. If no speaker is connected to the “SPEAKER” output,
the internal speaker emulator load will be activated.
4.7 SPEAKER
S
Connect speaker cabinets to the speaker jacks on the rear panel of the Quad15 using dedicated speaker cables. The total
impedance must be minimum 8 ohm and the lower speaker jack must be used first.
It is safe to use the Quad 15 as a preamp only when no speaker cables are connected to the speaker outputs!
Speaker(s) connected Speaker jacks Output power
(Sinusoidal before clip)
Output power
(Heavily clipped)
16 ohm speaker Lower jack (USE FIRST) 15 W 20 W
8 ohm speaker Lower jack (USE FIRST) 15 W 20 W
2 x 16 ohm speakers Both jacks 2 x 7.5 W 2 x 10 W
4 by 12” cabinets: Typically installed with 4 ohm / 16 ohm impedance switch. Select “16 ohm”.
4.8 MIDI IN
Connect a MIDI – foot controller or other MIDI device to the “MIDI IN” jack of the Quad15.
See page 15 for MIDI control and programming of the Quad15.
4.10 MIDI THRU
Connect a standard MIDI-cable from “MIDI THRU” of the Quad15 to the MIDI IN jack of
other MIDI-controlled effect units, etc.
The MIDI THRU is a hardware buffered output with zero latency.
4.9 P
HANTOM POWER FROM
MIDI IN
The MIDI-IN connector of the Quad15 is equipped with phantom power to supply your MIDI
foot controller (Not included) without any additional power supplies or extra mains cables
on the stage.
5 pin MIDI cable
where only 3 pins are
connected
5 pin MIDI cable
where ALL 5 pins are
connected
7 pin MIDI cable Maximum
recommended
output current
Absolute
maximum
output current
No phantom power Pin 1: GND Pin 6: GND 300 mA 400 mA
MIDI only Pin 3: +12V Pin 7: +12V (Short circuit protected)
The phantom power delivers max 400 mA at 12Vdc and is fully short circuit protected. Note that current draw of more than 300 mA
might increase the noise level from the amplifier at high gain settings.