itself. Verify that it’s not a fault external to the amplifier by disconnecting all cables (except the power cable) from the amplifier. If the
protect LED is no longer lit, the problem is most likely a bad speaker cable or defective speaker. Testing with a set of headphones
can help to narrow down the problem, as the headphone signal is derived post-power amp using a frequency compensated, cabinet
emulation network.
LIMIT LED:
This amber LED indicates that the power amp is nearing maximum power and is entering the soft clip/limit output
tube emulation mode. Soft clip/limit output tube emulation mode mimics many of the desirable characteristics of tube amp output
stage overdrive while eliminating the common solid state clipping artifacts. There is approximately 6dB of range on this circuit, driving
beyond this, of course, will cause gradual output stage clipping. It’s acceptable for this amplifier to operate in output stage overdrive
mode (if that’s the tone you are after) with the LED flashing roughly 25% of the time on.
REAR PANEL (CONTROLS & FEATURES)
POWER SWITCH:
This switch is used to turn your amp on and off by disconnecting the amplifier from the power source
(mains). This amplifier complies with the new EU Eco-design directive by providing a switched “0.00 watt power consumption off-mode”.
IEC POWER INLET:
This power inlet conforms to the IEC C-14 type standard, and is to be used with a cordset containing a
matching connector, and appropriate plug for the intended market.
OPERATING POWER REQUIREMENTS:
The SUBWAY WD-800 is designed with a universal, auto-ranging power supply
that automatically adjusts to line voltages between 100-120V and 220-240V, 50 or 60Hz. The power supply is internally monitored
by supervisory protection circuits and thus contains a non-user replaceable fuse that opens in the unlikely event of a major failure.
The amplifier is designed to be use with grounded or earthed power, meaning that the chassis is always maintained at ground/earth
potential even in the event of a gross failure within (or external to) the amplifier. Never remove the grounding/earthing pin from the
power plug, or alter the power cable.
COOLING FAN:
The SUBWAY WD-800 incorporates a low speed, high reliability cooling fan which allows it to drive difficult
loads (including 2 ohms) at very high duty cycles. Be sure this fan inlet is not blocked or the amplifier’s protection circuits shutting the
amplifier down due to a thermal fault condition. This quiet, low noise fan will always run at a low speed, the air flows into the chassis
from the back and out through the front and side slot vents.
SPEAKER OUTPUTS:
The SUBWAY WD-800 is rated to drive a minimum 2 ohm load (with the impedance selector switch
set to the 2 ohm position), meaning either 4 x 8 ohm cabinets or 2 x 4 ohm cabinets. The amplifier incorporates a pair of SpeakOn™
NL4FC connectors (wired in parallel) that mate with either NL2MP or NL4MP plugs.
Cables using NL-2 plugs contain only 1+/1- terminals and will always be correctly wired for use with the amplifier, but cables using NL4
connectors come with different wiring configurations. If using cables with NL-4 connectors, they may be constructed with standard 2
wire cable which must be wired 1+ to 1+ and 1- to 1-. If the cable contains 4 wires, that’s ok because terminals 2+ and 2- which are
PAGE 6
SPEAKER OUTPUTS
POWER
MAX AVG PWR CONSUMPTION 400W
MAINS FUSE: INTERNAL T-6.3A/250V
MADE IN PETALUMA, CA, USA WITH THE WORLD’S FINEST MATERIALS
100V-240VAC
~50/60Hz
INPUT
POWER
USB DEVICE PWR
OFF ON
AMPLIFIER
44YV
FX LOOP
400 WATTS/8 OHM
800 WATTS/4 OR 2 OHM
RATED
POWER
SUBWAY
®
WD-800
™
BASS AMPLIFIER
IMPEDANCE
HEAD
PHONES
RETURN SEND
MUTE/PEQ BYP
(FOOTSWITCH)
AUX
INPUT
TUNER
OUTPUT
2 Ω 4/8 Ω
USB
POWER ON
TUBE TYPE: 12AT7
CATHODE BIASED CLASS A
SOURCE
POST-EQ
LEVEL
LINE
PIN 1
LIFT
PRE-EQ MIC GROUND
DIRECT OUTPUT
(PHANTOM POWER PROTECTED)
2 OHM MINIMUM LOAD
WARNING:
Replace fuse with same type/rating only.
Do not expose to rain or moisture.
CAUTION:
Risk of Electric Shock. Do Not Open.
No user serviceable parts inside.
BASS
500HZ 1.3KHZ
PARAMETRIC EQUALIZER
2-STAGE CLASS A TUBE PREAMPLIFIER
2.6KHZ
TREBLE MASTERINPUT
HIGHPASS
FILTER
POWER AMP
DAMPING
PASSIVE
MID
INPUT
25HZ 125HZ
80HZ 1KHZ
0 dB
-12 +12 LOW
MED
HIGH
0 dB
-12 +12
0 dB
-12 +12
150HZ 2.5KHZ 300HZ 5KHZ
PEQ
BYPASS
POWER
PROTECT
2 OHMS
LIMIT
O/D
PASSIVEPLAY
ACTIVEMUTE
SUBWAY
®
WD-800
™
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