A beautiful example of how old and new technology should work together.

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The Markbass Classic 300 bass amp's heart beats with the power of JJ Electronics tubes--2 ECC83 preamp tubes, 2 ECC99 tubes, and 6 KT88 power tubes--which give you the warmth and fullness of the great old amps that are now aging or retired. A massive 300W of tube-driven power will handle just about any venue imaginable.

But times have changed, and this bass head comes with a brain: an onboard microprocessor re-biases your tubes every time you start up the Markbass Classic amp. This allows you to customize your bias adjustments, and tells you if and when any tubes need to be replaced. Tube amps used to be finicky and unreliable. Now you won't have any nasty surprises during a gig, and you'll know exactly when and how your tubes need to be serviced. To top it off, the Classic 300 bass head puts out a loud 300 watts of power. It also has a 4-band EQ, plenty of I/O, and a 2 x 16 LCD screen which can be used as a VU meter or for displaying other important parameters you choose.

With our Guaranteed Lowest Price, you can be assured of complete satisfaction and the lowest available price, or your money back!

Markbass Classic 300 300W Tube Bass Head Features:

All-tube amp - two ECC83 preamp tubes, two ECC99 tubes, and six KT88 power tubes (all manufactured by JJ Electronics)
2 x16 LCD screen shows a digital VU meter and/or other technical parameters
Bias Control for making power tubes work in HiFi mode/or Long Life mode
Standby control for making amp work in low consumption mode when momentarily not in use
1/4" input jack works with active or passive basses
Balanced XLR on front for double bass pickups
Gain and Master volume controls
Clip warning light
EQ includes controls for Low, Mid Frequency Low, High Frequency Low, and High
Neutrik Speakon Combo out jacks for use with 1/4" or Speakon speaker cables
Balanced XLR line out
Pre EQ/Post EQ switch to determine whether EQ effects XLR line out or not
Ground lift switch to eliminate hum
Tuner out sends unbalanced signal sent to a tuner, amp or recording equipment not needing a balanced signal
Send and Return Effect ensures main signal continues even if something dies in your effects chain
Dual-sided fiberglass PC boards with lined perforations for high-quality solder connections
Surface-mount components are silicon-sealed to isolate vibrations
Computer-grade pre-assembled ribbon connector cable harnesses and ribbons for noise-free operation
Integrated threaded posts for easy assembly/disassembly and added durability
Rigid 2mm thick aluminium chassis

Markbass Classic 300 300W Tube Bass Head Specifications:

Power
Input impedance: 500Kohm, max. voltage: 5 Vpp
Effect Return impedance: 22Kohm, max. voltage: 15 Vpp
Output Power: 300W at 4 ohms or 2 ohms, 175W at 8 ohms
Voltage is factory preset for the U.S.

Controls

GAIN: —60dB to +35dB range
MASTER VOLUME
GROUND LIFT: switch on rear panel
Optional Footswitch: Mute

Equalization
LOW
Center frequency: 80Hz; level ±12dB
LOW MID
Center frequency 400Hz, level ±12dB
HIGH MID
Center frequency 800Hz, level ±12dB
HIGH
center frequency: 3kHz shelf; level ±12dB

Outputs
EFFECT SEND
Unbalanced, max. voltage 18 Vpp (pre-EQ)
TUNER OUT
Unbalanced, max. voltage 2.5 Vpp
LINE OUT
Balanced XLR, max. voltage 25 Vpp
SPEAKER OUT
2 x Speakon/1/4" combo jacks

Other
Dimensions: 19.76"W x 11.65"H x 12.44"D
Weight: 48.06 lbs.