Harman Kardon Signature 1.5 Technical Manual

Also see for SIGNATURE 1.5: Owner's manual

Contents

Harman Kardon Signature 1.5 Technical Manual Manual pdf 5 page image

4Two Channel Amplifier Harman Kardon SIGNATURE 1.5INSTALLATIONNote: When making any connections between sourcecomponents, processors or preamplifiers and the 1.5, orwhen making any connections to speakers, be certain thatboth the input device and the 1.5 are turned off. To ensurethat there will be no unwanted signal transients that candamage equipment or speakers, it is always best to unplugall equipment from AC power outlets before making anyconnections. Modern electronic products often have a“standby” mode that may be activated even though theproduct may appear to be turned off.Power Control ConnectionsThe Signature Series 1.5 amplifier features a built-in remoteturn-on system that will automatically turn on the amplifierwhen another device in the system is switched on. Toactivate this system, this amplifier must be used inconjunction with compatible Signature Series or HarmanKardon products or other approved devices.Note: Before making any connections to remote triggeroutlets, it is critical that both the 1.5 and the triggeringdevice be turned off. For additional safety, it is best thatthese connections be made while both products areunplugged from AC power sources.Remote Turn-On with the Signature Series 2.0 andCompatible Harman Kardon ProductsConnect one end of the accessory cable supplied with the2.0 to the Power Amp Trigger In jack on the rear of the1.5. Connect the other end to the TRIGGER OUTPUT jackon the 2.0.Remote Turn-On Using an External AC-to-DC ConverterIf the 1.5 is not used with a compatible Harman Kardonproduct, it is still possible to activate the unit for automaticturn-on.To control the amplifier in this manner you will need a smallUL/CSA-approved class-2 AC-to-DC power convertercapable of delivering a 6- to 12-volt DC signal. The DCvoltage should terminate in a standard 3.5 mm monominiplug, with the tip of the plug “positive” (+). This type ofconverter may be obtained as a “Power Adapter” from manyelectronics retailers. Consult your dealer for furtherinformation.Plug the AC adapter into a switched outlet that will beactivated when you wish to have the amplifier turn on. Thismay be the switched outlet at the rear of an AV receiver orother audio equipment, an AC outlet that is part of a currentsensing control unit activated by a pre-amp or surroundprocessor or a switched AC wall outlet.Connect the 3.5 mm miniplug from the power converter tothe Power Amp Trigger In jack on the rear of the 1.5.Audio System ConnectionsAs a general rule, avoid running any input signal or speakerwire connections next to or parallel with AC power cords.This may cause undesired hum or other interference thatwill greatly degrade signal performance.When making input connections with RCA-type plugs oninterconnect cables, make certain to gently but firmly insertthe plugs into the jacks on the rear of the 1.5. Looseconnections can cause intermittent sound and may damageyour speakers.Input ConnectionsStereo Mode: For conventional two-channel stereooperation, connect the right channel output of your pre-ampor processor to the Channel One Input and the leftchannel output to the Channel Two Input . Make certainthat the Bridge/ Normal Switch is in the NORMALposition.Bridged Mono Mode: To use the 1.5 as a single-channel,mono amplifier, connect the line-level output of yourpreamp, processor or other signal source to the ChannelTwo/ Bridged Input connector on the rear panel. Noconnection is required to the Channel One connector in thismode. Make certain that the Bridge/ Normal Switch isin the BRIDGE position.Output ConnectionsThe final step of the installation process is to connect theamplifier to your speakers using high-quality cable. A pair ofbinding posts is provided for each channel output. Theseposts will accept bare wire or banana-type plugs. To ensurethat the high-quality signals produced by the 1.5 are carriedto your speakers without loss of clarity or resolution, werecommend that you use high-quality speaker cable. Manybrands of cable are available, and the choice of cable maybe influenced by the distance between your speakers andthe amplifier, the type of speakers you use, personalpreferences and other factors. Your dealer or installer is avaluable resource to consult in selecting a proper cable forconnections between your amplifier and speakers.Regardless of the brand or type of cable selected, werecommend that you use a cable constructed ofhigh-strand-count copper with a gauge of 14 or smaller.When specifying cable, remember that the smaller thenumber, the thicker the cable.101069797