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Super nice! Good to have a manual in digital format.
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James Dawson August 18, 2012
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RISK OF ELECTRIC SHOCK
TO REOUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER
NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO O U A L F I E D SERVICE PERSONNEL
The llghtnrng flash w ~ t h arrowhead symbol, wlthln an equilateral triangle, IS rntended to alert the user to the presence of un~nsulated "dangerous voltage" wlthtn the product's enclosure that may be of sufflcrent magnttude to constitute a risk of electrlc shock to persons The exclamation point within an equilateral trangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
attached at the output terminals. In addition, the amplifier features a clipping protection c u d . This circuit does not add distortion to the signal, as do ordmry "soft clipping" circuits. Instead, it reduces the gain of the amplifier only when necessary to avoid long term hard clipping. 'lhis circuit can be selectively disabled by pressing the Protection Defeat switch for each channel desired. The slotted control knobs on the HTS5OSPA are intended to require insertion of a coin to change their settings. These knobs resist accidental changes of position. Two LED'S on the front panel illuminate to indicate the presence of an audio signal, and either operation of the protection circuit or clipping. Power on is indicated by the illuminated power button.
tion of the HTS5OSPA with highest quality components used throughout. The power amplifier circuit of each channel uses a hybrid audio power module construction. This compact assembly techque combines semiconductor chips, normally used in amplifiers as separate dwrete devices, into a tightly coupled unit on a multilayer high-thermal-conductivitysubstrate. The high thermal conductivity of the base substrate results in a close thermal match of the amplifier output circuits to the voltage and current gain driver stages. Each discrete device now tracks the other dependent on power dissipation in the output stage. This is not possible with the discrete separated parts using normal amplifier construction. Thus the HTSSOSPA takes advantage of one of the benefi& of monolithic integrated circuits while still retaining a discrete component topology as part of the hybrid amplifier module. The total amplifier circuit combines the hybrid module and special control circuitry to deliver high current and voltage with low distortion and precise control of the amplifier circuit in overload conditions.The output amplifiers in each channel are complemented by signal processing circuits which match amplifier operation to the HTS loudspeakers. The total combines low noise FET operational amplifiers, high quality small signal capacitors and resistors, multiple computer grade power supply capacitors,glass epoxy circuit boards, and a high current low noise, instrumentationgrade toroidal power transformer. The result of these circuitry techniques is an amplifier of exacting specifications,precisely processing the input signal and accurately matching HTS5O Series Loudspeakers to produce fl and im many years of enjoyment of the finest music sound stages.
HTSSOSPA FRONT PANEL CONTROLS
@ LWEL:For both Channel 1 and Channel
2, the normal position for the Level control is 0 (no attenuation for all loudspeakers.) In the HTS Theater Reference System, total Volume level and Surround level are controlled at the HTS Decoder or its Remote Control. In certain cases, other level settings can also be recommended
1 To compensate for room variations, .
see the Balance and Phasing section of the HTS5300 Manual for specific instructions.
2. For a more visceral low end in theatrical presentations, either turn all level controls to -3 except for the HTSSOSW Subwoofer or turn all
Amplifier Architectme To interface with the outside world, the RCA amplifier input connectors are gold-plated type phono @;output connectors are goldplated five-waybin@ posts suitable for use with most high-performance audio cables.
To receive and generate signals at the input and output connectorsrespectively, scrupulous care has been exercised in design and construc-
levels controls to except for the Subwoofer. In both setups, leave the Subwoofer channel level conml at 0. The additional ultra-lowfrequency