61. Fuse holder - Holds a 5A/250V fuse for 115 volt operation or a 2.5A/250V fuse for230 volt operation2. AC input - Connect the supplied standard 3-pin “IEC” plug here.3. Send Pre - Use this 1/4" unbalanced jack to send signal to a professional outboardeffects processor.* Output level is approximately 0 dB to +4 dB and is pre-EQ andpre-Shape but post-Volume control.4. Return Pre - Use this 1/4" unbalanced jack to return signal from a professionaloutboard effects processor.* Signal is returned before the EQ and Shape controls butafter the Volume control.5. Send Post - Use this 1/4" unbalanced jack to send signal to a professional outboardeffects processor.* Output level is approximately 0 dB to +4 dB and is post-EQ,post-Shape, and post-Volume control.6. Return Post- Use this 1/4" unbalanced jack to return signal from a professionaloutboard effects processor.* Signal is returned after the EQ, Shape and Volume controls.7. Line Out - This standard unbalanced 1/4" jack provides a line-level (+4 dBu) post-EQ,post-Shape and post-Volume output signal from the HA3000. You’ll usually use this toconnect the HA3000 to additional slave amplifiers.8. Preamp Out - This standard balanced XLR jack provides a -20 dBu level post-EQ,post-Shape and post-Volume output signal from the HA3000. This is generally used tosend the sound of the HA3000 (that is, the equalized, shaped signal) to a PA system orrecording mixing console.9. Ground Lift switch - Used to reduce any hum or buzz that may be present in theDirect Out and Preamp Out signals (see #6 on page 3 and #8 above). When set to theright, “Float” position, chassis ground is removed from XLR pin 1.10. Speaker outputs - Connect any 4, 8, or 16 ohm bass cabinet(s) to these standardunbalanced 1/4" jacks. WARNING: Because of the high power levels and lowfrequency content of the signal generated by the HA3000, use only appropriatelyrated speaker cabinets (at least 300 watts at 4 ohms) that are specifically designedfor bass instruments. The minimum impedance of all connected speakers must notgo below 4 ohms (i.e., don’t plug in two 4-ohm cabinets!).11. Fan - This variable speed fan provides vital cooling to your HA3000 (the hotter theamp gets, the faster the fan blows!). Make sure that it is kept free of all obstructions andthat cool, fresh air is accessible at all times. Also, try to ensure that the HA3000 is used ina dust-free environment.* In-line effects (such as footpedals) intended for low signal levels should be placedbetween your bass and the front panel HA3000 Input and not connected with the rearpanel Send/Return jacks.Guided Tour - HA3000 Rear Panel~AC INPUT115/230V, 50/60HzFRAME FLOATGROUND<100Ω –20dBuBALANCEDPRE AMP OUTFUSE7A/250V(115V)3.5A/250V(230V)TO PREVENT SHOCK,DO NOT OPEN. NO USER SERVICE-ABLE PARTS INSIDE. REFER SERVICING TO QUALIFIEDSERVICE PERSONNEL. TO PREVENT FIRE OR SHOCKHAZARD. DO NOT EXPOSE TO RAIN OR MOISTURE.CAUTION; REPLACE WITH THESAME TYPE FUSE AS INDICATED.UTILISER UN FUSIBLE DE RECHANGEDE MEME TYPE.CAUTIONS / NDistributed Exclusively bySamson Technologies Corp.MODEL HA3000 (300 WATTS)8Ω = 180 WATTS4Ω = 300 WATTSPOWERRATING 115V/230V 50HZ/60Hz 500WCAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENAVIS;RISQUE DE CHOC ELECTRIQUENE PAS OUVRIRDO NOT EXPOSE THIS EQUIPMENTTO RAIN OR MOISTURE.SPEAKER OUTPUT300WATT RMS/4ohmsCHASSIS GROUNDLIFT REMOVESCHASSIS GROUNDFROM XLR PIN1MADE IN KOREASEND PRE< 50Ω 0dBuRETURN PRE10KΩ 0dBuSEND POST< 50Ω 0dBuRETURN POST10KΩ 0dBuLINE OUT< 50Ω +4dBu4 82 3 51 6 7 9 10 11ENGLISH