9
Setting Up and Using the Model 5000/7000
Setting up your Hartke Systems 5000/7000 Bass Amplifier is a simple procedure
which takes only a few minutes:
1. Remove all packing materials (save them in case of need for future service)
and decide where the amplifier is to be physically placed. To avoid potential
overheating problems, be sure that the rear panel is unobstructed and that there
is good ventilation around the entire unit, particularly behind the rear-panel fan.
2. Begin by setting the rear-panel Bi-Amp switch for either mono or bi-amp
usage. If you are only using a single bass cabinet or multiple cabinets with the
same diameter speakers, place the switch in the “Mono” position and connect
the cabinet(s) to any of the four 1/4” unbalanced Speaker output connectors on
the rear panel. If you are using multiple cabinets with different diameter speak-
ers, place the switch in the “On” position and connect the smaller diameter
cabinet(s) to the High Frequency speaker output(s) and the larger diameter
cabinet(s) to the Low Frequency speaker output(s). It is never a good idea to
power up any amplifier that is not connected to loudspeakers. Hartke amps are
optimized for use with Hartke bass cabinets, although other brands of speakers
can be substituted. Any appropriately rated bass cabinet with a minimum
impedance of 4 ohms (that is, 4 ohms or greater) can be used. In order to
ensure correct phase correlation, the tip of the Model 5000/7000 speaker jack
should be connected to the “+” (hot) input of your loudspeaker(s), and the sleeve
of the Model 5000/7000 speaker jack should be connected to the “-” (ground)
input of your loudspeaker(s).
3. Next, connect the supplied EEC plug into the rear-panel socket and plug the
AC plug into any grounded AC socket. Don’t turn the amplifier on just yet.
4. Use a standard music instrument cable to connect your bass to the appropri-
ate Input jack on the front panel (if your bass has active circuitry [normally, these
instruments require a battery in order to be functional], connect it to the “Active”
input; if not, connect it to the “Passive” input). On the front panel of the Model
5000/7000, set the Master volume control to “0” (fully counterclockwise) and set
both Pre-Amp A (Tube) and B (Solid State) knobs to “5” (the twelve o’clock posi-
tion). Set the Compression knob to its “Off” position (fully counterclockwise—
you’ll hear a click) and set both Contour knobs to their center detented “0” posi-
tion. Finally, set the graphic equalizer In/Out switch to its “Out” position.
5. Press the front panel Power switch in order to turn on the amplifier.
After approximately three seconds, you’ll hear a click, indicating that the relay
protection circuitry has completed cycling and that power to the system has been
provided.
6. Set the output of your bass to maximum and then, while playing, slowly turn
the Master volume control up until the desired level is achieved. If you hear
distortion even at low amplifier Master volume settings, back off the output of
your bass (or check for a faulty cable).
WARNING: Hartke amplifiers can deliver very high power levels. Driven
to full power, they can damage connected loudspeakers, regardless of
brand, size, or configuration. Care should be taken not to strain
connected loudspeakers as this can cause permanent damage and will
degrade the performance of the entire system. If you see connected
loudspeakers moving excessively, turn your system down immediately or
use the equalization and/or compression controls to reduce the amount
of subharmonic (extremely low frequency) signal.
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