Operation Manual

Guided Tour - Model LH1000 Rear Panel

1. AC Voltage selection switch – This switch is used to set the LH Series operation voltage. Be sure to check that the

switch is set correctly for your country.

2. EFFECTS SEND jack - Use this 1/4” unbalanced jack to send low impedance (100 ohm) signal from the Model LH1000

to a professional outboard effects processor such as a reverb, echo, chorus, flanger, or harmonizer device. Output level

isapproximately0dBto+4dBandispost-EQandpost-LimiterbutunaffectedbythesettingoftheVOLUMEcontrol.

You can also use the Effect Send jack to route signal to an external mixing console or amplifier with an input sensitivity

of +4 dB.

3. EFFECTS RETURN jack - Use this 1/4” unbalanced jack to return low impedance (600 ohm) signals to the Model

LH1000 from a professional outboard effects processor.

4. Fan - The fan provides vital cooling to your Model LH500 and LH1000. Make sure that it is kept free of all obstructions

and that cool, fresh air is accessible at all times. Also, try to ensure that the Model LH1000 is used in a dust-free

environment.

5. SPEAKER OUTPUT A - Connect any 4, 8, or 16 ohm bass cabinet(s) to these standard unbalanced 1/4” jacks. WARNING:

Because of the high power levels and low frequency content of the signal generated by the Model LH1000, use only

appropriately rated speaker cabinets (at least 600 watts at 4 ohms) that are specifically designed for bass instruments.

We recommend that Hartke amplifiers be used with Hartke bass cabinets, although other brands of speakers can be

used.

6. BRIDGE output connector - Connect a Speakon connector cable here when operating in Bridge mode.

7. SPEAKER OUTPUT B - Connect any 4, 8, or 16 ohm bass cabinet(s) to these standard unbalanced 1/4” jacks. WARNING:

Because of the high power levels and low frequency content of the signal generated by the Model LH1000, use only

appropriately rated speaker cabinets (at least 600 watts at 4 ohms) that are specifically designed for bass instruments.

We recommend that Hartke amplifiers be used with Hartke bass cabinets, although other brands of speakers can be

used.

8. BRIDGE switch – Used to set the LH1000 to operate in Dual Parallel or Bridge modes.

9. AC input - Connect the supplied standard 3-pin “IEC” plug here.

10. Fuse sled - This contains a fuse holder for your Model LH1000. Make sure the voltage rating is correctly set before

powering up the amplifier! Fuse ratings are 15 amp for115 vac and 7.5 amp for 230 vac.

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