The Invader MKII is an all-tube amplifier, available in either a
2-EL84 18W version or a 2-EL34 30W version. This amplifier is truly
touch-sensitive, going from clean to crunch to singing leads by just
adjusting the volume control on the guitar. The amplifier
features two internally-jumpered channels, which are independently
voiced, to provide a wide range of tones from any guitar, using
single-coil or humbucking pickups. It was designed specifically
to capture those old plexi/aluminum panel tones at less than
ear-shattering volumes, with the addition of reverb and a
built-in
attenuator.
The Invader MKII is available in a 1x12 or 2x12 speaker format, or
as
a separate head. Standard color combinations are black, purple,
red,
emerald green, fawn, and white with gold or white piping, with many
other
custom colors available.
Available Coverings
Features include:
- All-tube signal path. Preamp tubes are JJ/Tesla ECC83, Ei
12AX7, and the reverb driver is a12AT7. Output tubes are
JJ/Tesla EL84 (18W) or Svetlana EL34 (30W). The rectifier uses
massive 3-amp 1000V ultra-fast recovery diodes (Ultra-FREDs), for
utmost reliability and a tight low end, without the RF noise
interference "spikes" inherent in standard rectifiers.
- Front panel controls/connections: Input jack, Volume 1
(bright), Volume 2 (dark), Bass, Mid, Treble, Presence, Dwell, Reverb,
Attenuator, and Variable. The two channels are internally
jumpered, allowing mixing of the two volume controls to provide a wide
range of tones, enabling the amplifier to work well with any guitar,
either single-coil or humbucker. Exclusive Plexi/Ali front panel
switch to reconfigure the preamp section to early "plexi" style for a
full rich tone (great for warm clean tones) or
the later aluminum, or "ali" style preamp, which is voiced brighter and
tighter
in the low end (best for distortion styles).
- Rear panel controls/connections: AC mains input, international
voltage selector switch allowing operation at
100V/120V/200V/220V/230V/240V 50/60Hz, impedance selector switch
for 4, 8, or 16 ohm operation, two 1/4" speaker jacks, reverb
footswitch jack. Also includes a locking mil-style RV6L bias pot
and three tip jacks for easy bias setting without having to remove the
chassis from the cabinet.
- Solid, finger-jointed, void-free birch ply cabinets. The
1x12 combo is 25 1/2" wide, 21" tall, and 10 1/4" deep. The 2x12
combo is 29" wide, 21" tall, and 10 1/4" deep. The head is 25 1/2"
wide, 10 1/4" tall, and 9" deep.
- Hefty 16-gauge steel chassis, zinc-plated, yellow chromate
conversion coated for durability, corrosion-resistance, and appearance.
Front and rear faceplates are gold anodized aluminum for a
durable, classic look.
- All hand-wired "military style" turret board construction,
using chassis-mounted tube sockets, for ease of maintenance and
reliability. Built to last.
- Premium, tight-tolerance parts are used for lowest noise
operation, including 2W carbon film and metal film resistors
where appropriate for best tone and lowest noise, 5W metal oxide
power resistors, 630V axial-leaded polypropylene film/foil
capacitors, and low-noise, sealed, 2W mil-style RV4 pots.
- Massive, custom-wound, high-interleave transformers, rated for
over twice the maximum amplifier output power, allowing the
amplifier to be run full power into an attenuator continuously, without
failures.
- Output power (at onset of clipping): 18W (2-EL84 model) or 30W
(2-EL34 model) into 4, 8, or 16 ohms resistive load.
- Built-in power attenuator with 0dB, -3dB, -6dB, -9dB,
-12dB positions as well as a "VAR" position, which enables a second
continuously-variable control that goes from -15dB down to "bedroom"
levels for low volume recording or practicing. Perfect for
studio or club use. This is actually a true attenuator, working
between the output transformer and speakers, functionally similar to
some of the current attenuators on the market, but a completely unique
design that doesn't lose highs or lows as you attenuate the signal.
- Reverb: 2-knob spring reverb with dwell and level
controls. Reverb tank is a standard Accutronics 4AB3C1B (combo)
or 4AB3C1A (head). Footswitch jack for on/off control - accepts
any standard grounding-type footswitch (not included).
- Available in combo format with two 12" speakers, a single 12"
speaker, or in a head configuration. Celestion Greenback speakers
are standard, others available upon request for an additional charge.
- All custom colors are available at no extra charge.