Glossary
AUX
Universal preamplifier input ( AUX = auxiliary input) for
connectinghighlevelsignalsources(i.e. signals | ources |
withanoutputlevelbetween0.25Vand4V). |
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Balance
Thebalancecontrolprovidesinfiniteadjustmentof level between right and left channels (shiftofstereo ce ntre), e.g.tocompensateforasymmetricspeakerposition ing.
Toavoidanyadverseeffectonthesound,thebalan ce
rangeislimitedto+6dB.Itisneverdesirableto reduce thevolumeofonestereochanneltozero.
dB
Theunitofmeasurementforelectricallevelsisth edeci Bel(dB).
Loudness
A volumedependent tone control ( Loudness) circuit which compensates for the frequencydependent sensi
tivityofthehumanearatverylowvolumelevels. Atvery high volumes the loudness circuit has absolutely no effect, but as volume is reduced the bass and upper treblearelifted,inordertocompensateforther eduction insensitivityofthehumanauditorysystematlow levels.
MC
Someanalogueturntablesarefittedwithdynamicso und pickupsystems( MC= Moving Coil). Theamplifiercan
be fitted with an optional highquality MC phono pr | e |
amplifiermodulewhoseinputimpedanceandinputse | n |
sitivity can be adjusted to match all currently ava | ilable |
dynamicpickupsystems. |
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MM
Someanalogueturntablesarefittedwithmagnetics ound pickup systems ( MM = Moving Magnet). The amplifier canbefittedwithanoptionalhighqualityMMphon opre amplifier module whose input impedance and input sensitivitycanbeadjustedtomatchallcurrently available magneticpickupsystems.
RLINK
Control interface for remote control of | source |
devices,surrounddecodersandoutputstages.Thep re amplifierreceivestheremotecontrolsignalsandp asses them to the currently selected source device via th is interface.
Sourcedevice
Thetermsourcedevicereferstothoseelementsof aHi Fisystemwhichprovideasoundsignal,suchastun ers, CDplayers,recordersetc.(signalsources).Wehav eto differentiate between listening sources and recordi ng sources.
•A listening source is the device to which you are currently listening. This device can be remote controlled.
•A recordingsource isasourcefromwhicharecording can be made using a recorder (TAPE). A recording sourcecannotberemotecontrolled.
Surround
Some signal sources (e.g. DVD or digital TV) supply multichannel sound using the DOLBY or dts standard. Your stereo amplifier can be expanded with a supplementary decoder to form a highquality multi channelHiFisurroundsystem.Pleaseaskyourspec ia list dealerforadvice;hewillgladlyadviseyoucon cerningmultichanneltechnology.
Symmetricaloutputs(XLR)
Theprincipleofsymmetricalconnectionshasitsor |
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instudiotechnology,wherethehighestpossiblequ |
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andbestpossibleinterferencesuppressionarerequ | ired. | ||
The principle is based on the idea of transferring |
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mirrorimage(inverted)signalsinsteadofasingle | signal. | ||
The receiving device generates the difference signa | l | ||
betweenthesetwosignals,withtheeffectthatall |
| traces | |
of interference are eliminated, and only the pure, |
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| un |
colouredsignalremainsforfurtherprocessing.Of |
| course, | |
symmetricalsignaltransferisofparticularintere | stwhere | ||
largedistancesareinvolved,e.g. withactivespe |
| akers, | |
or where the audiophile listener wishes to set up t |
| he | |
power amplifiers directly adjacent to the speakers | in | ||
ordertokeepthecriticalloudspeakercablesassh |
| ortas | |
possible. |
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However,symmetricalamplifiertechnologyoffersfu | rther | ||
advantages: no currents are transferred via the ear | th | ||
conductor, which would otherwise result ina declin |
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earth voltage, which would in turn offset the vital |
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portantearthreferencepotential.Sincetheamplit |
| udeof | |
theeffectivesignalisdoubledbythedifferenceg |
| enera | |
tionprocess,thevoltageamplitudeperunitoftim | eisalso | ||
doubled,therebydoublingtheslewrateofthesign |
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Anadditionaladvantageisthatdistortionandback |
| ground | |
noisetendtocanceleachotherout.Theimprovemen |
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noise is around 3dB, which equates to a reduction i |
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hissofaround30%.Fact:symmetricalsignaltechn |
| ology | |
does require considerably greater complexity, since | |||
somepartsoftheamplifierhavetobeduplicated, |
| butin | |
our opinion the gain in fidelity justifies the effo | rt every | ||
time. |
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Theexternalsignoftheextrainvestmentwehavem |
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inthistechnologyisthepresenceofindestructibl |
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fessionalstudioXLRsockets. |
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