Abbingdon Music Research LS-77 owner manual Speaker Cable

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LS-77	LS-77
Speaker R	Speaker L

Sensitivity:	87dB
Impedance:	8Ohms	HF
Cont. Power Handing:	150W	Level Adjustment
Peak Prog. Handing:	600W	Resistor

Frequency Response: (see graph)

LS-77 Professional Monitor
Designed and Engineered in Great Britain
	HF
	LF
IN	OUT
	Speaker Cable
Speaker Cable

Sensitivity:	87dB
Impedance:	8Ohms	HF
Cont. Power Handing:	150W	Level Adjustment
Peak Prog. Handing:	600W	Resistor

Frequency Response: (see graph)

LS-77 Professional Monitor
Designed and Engineered in Great Britain
	HF
	LF
IN	OUT
	Speaker Cable
Speaker Cable

Mono BiAmplifier	Mono BiAmplifier
Interconnect Cable	Interconnect Cable
R	L
Pre-amplifier	Pre-amplifier

Figure C.2 - System connection using banana plug/spade connector equipped speaker cables

i.Connect the respective spade/banana connector or bare wire of the speaker cables to the LS-77, use one cable pair for the pair of binding posts labelled “HF” and the other for the binding posts labelled “LF”. Observe polarity/marked colours of binding posts and cables.

ii.Connect the respective spade/banana connector or bare wire of the speaker cables to your amplifier in a like manner.

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Contents LS-77 Reference Class Professional Monitor Loudspeakers Page Page Running-In PrecautionsContents Page Front Panel of the LS-77 UnpackingPlease check that all contents are present LS-77 Front Fascia Component OverviewContact with the chassis Using AMRs OptiLink Speakon Cable SetupConnecting the loudspeakers Speaker R Speaker L Using Binding Posts Speaker Cable Stereo Amplifier Interconnect Cable Choice of loudspeaker cable Connecting the amplifierMulti-channel set up Distance between the loudspeakers PositioningSymmetry and room modes Distance to back and side walls Distance to the loudspeakersLevelling/Speaker Support Room and furniture influence Loudspeaker Toe-inRunning-in the loudspeakers Care and maintenanceCare & Maintainance Power rating LS- 77 Technical Features Troubleshooting Guide TroubleshootingSpecifications Table SpecificationsAppendix a Adjustment of tonal balan ce HF Level Placement Suggestions HF Level R1 Placement Appendix B Abbingdon Acoustic Setup Regime Page ~100″/254cm ~115 ″/290cm Page Page Appendix C Biamplifying the LS-77 LS-77 Speaker R Speaker L Speaker Cable AM-77 Control Center Edition CCE Appendix D The AMR Active SystemLine Level Connection Setting up the AMR Active SystemSpeaker Connection Scenario Testing and Troubleshooting the AMR Active System LS-77 Speaker L AMR Active System Configuration DiagramIntroducing AMRs OptiArray scalable acoustic system Appendix E LS-77 in OptiArray configurationsPage AMR recommends the following OptiArray Setups Epsilon/Zeta Iota/Zappa Omicron/Sigma Epsilon/Zeta System wiring Reverberation time Appendix G Acoustics Background In formationAcoustics Good acousticsPage Membrane absorbers DiffusersAbsorption or Diffusion ? AbsorbersPorous absorbers Standing WavesRoom modes