Nagra VPS Скачать руководство пользователя страница 10 | Manualshive

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VPS diagram

The diagram describes the signal path, as well as the various
parameters you can adjust using the jumpers or switches.

The left-hand side section, “Input Module MC”, is the input module
located in A or B

.

The right-hand side section, “Main Board Stage

Amplifier”, is located on the VPS main board.

10

Nagra –

VPS

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Содержание VPS

Страница 1: ...P N 2 20 05 55 50 00 03 31 15 51 1 A Al ll l r ri ig gh ht ts s r re es se er rv ve ed d 2 20 00 07 7 VPS Phono Preamplifier User manual ...

Страница 2: ... Front panel 9 Main selector 9 VPS diagram 10 Internal parameter settings 11 Opening the VPS 11 Phono Modules 12 Default parameter settings 12 Jumper functions 13 Load circuits 13 Load circuit installation 14 Gain stage selection 14 RIAA curves 15 External tranformer usage 16 Tube ageing 16 Case cleaning 16 Technical specifications 17 Nagra Hi Fi range 18 Declaration of conformity 19 2 Nagra VPS ...

Страница 3: ...w equipment This limited warranty covers the repair and replacement of defective parts excluding any other remedy The absence of a serial number invalidates the warranty We decline any responsibility for damages resulting directly or indirectly from the use of our products As we constantly strive to improve our products we reserve the right to modify them or change their specifications without not...

Страница 4: ... benefit from technical advances that are often the privilege of the professionals This technology exists in the service of music your music This is why we already wish you some great moments of listening pleasure with your VPS Thank you for your trust Package contents Besides the manual and the VPS itself the box contains Mains cable ACPS II power supply Record of measurements response curve char...

Страница 5: ...Nagra VPS must rest on a stable support We recommend that you use the new anti vibration support Nagra VFS Vibration Free Support developed by Nagra consisting on isolated massive aluminum plate using the same damping material as the Nagra CD mechanics The top cover of the VPS features three slots for isolation spikes You can obtain an isolation spike kit for the following devices VPS CDC CDP CDT ...

Страница 6: ... be facing upwards for correct insertion into the power input connector You will hear a click indicating that the plug is securely locked in After connection of the LEMO plug connect the ACPS II to the mains via the IEC cable Illumination of the ACPS II s red LED Light Emitting Diode indicates the output of direct current If the LED is off check the connection of the IEC mains cable and the delive...

Страница 7: ...tor Connect the ground wire of your turntable to the ground terminal of the phono module located at the back of the VPS This connection is not always necessary depending on various characteristics of your record deck cabling and cartridge You Nagra dealer will be able to advise you on the usefulness of this connection 7 Nagra VPS ...

Страница 8: ... output signal on XLR connectors They are unbalanced Make sure you are using the shortest possible cable with no loops or useless bends between your turntable and VPS The RCA or XLR outputs can equally be used for connection to a PL L or PL P NB Caution Do not use the XLR and RCA outputs simultaneously In order to obtain optimal performances from the Nagra VPS it is preferable to leave the device ...

Страница 9: ...he selector from the OFF position to the A or B position depending on the installed phono inputs The tubes are preheated for 90 seconds flashing LED during which the VPS is in MUTE mode NOTE In case of an accidental return to the OFF position for less than 90 seconds the preheating is not reapplied When moving between the A OFF and B positions a 3 second switching delay is applied to avoid any unw...

Страница 10: ...ell as the various parameters you can adjust using the jumpers or switches The left hand side section Input Module MC is the input module located in A or B The right hand side section Main Board Stage Amplifier is located on the VPS main board 10 Nagra VPS ...

Страница 11: ...ng the unit to perform internal parameter adjustments Remove the four screws from the top panel of the VPS with the supplied tool When closing the casing make sure you place the top panel with the two isolation spike slots facing towards the front so that the hollowed out internal part of the panel is above the tubes 11 Nagra VPS ...

Страница 12: ...he default parameters settings are indicated in blue on the VPS internal parameter card Factory settings for MC Phono module 1 B Unbalanced inputs 2 B With no additional charge module 3 A Moving coil input 4 AB Not connected 5 A Through internal transformer 6 B No 47 kΩ resistor Factory settings for MM Phono module 1 B Unbalanced inputs 2 B With no additional charge module 3 AB Not connected 4 A M...

Страница 13: ...ternal transformer usage B for external transformer usage see page 16 6 A for additional 47 kΩ load on tube input B when unused Load circuits The Nagra VPS is supplied with 6 load circuits 3 resistive loads R and 3 capacitive loads C allowing the settings of your VPS to most closely match the specifications of your cartridge manufacturer For each input module Nagra offers you three free optional l...

Страница 14: ...In the Lo position the outputs are directly connected to the tubes The maximum output level is approximately 300mV If your cartridge or preamplifier does not have enough gain you can amplify the VPS s output by using the Hi setting It adds a discreet component amplification stage that boosts the output level to 2 V NB Always mute your preamplifier or integrated amplifier when changing the Hi Lo se...

Страница 15: ...RIAA curves By default the S4 and S5 jumpers are in place and you can enjoy the benefit of extended low frequency bandwidth If your turntable generates noise in the lower frequencies you can attenuate them by removing the S4 and S5 jumpers This position matches the 1976 RIAA IEC curve suited to light record decks whose platters generate more noise ...

Страница 16: ...10 000 hours Thus the useful life of the tubes is somewhat unpredictable Rather than replacing the tubes arbitrarily after 5000 hours we suggest that you learn to identify the signs of ageing Increase in distortion to reach an audible level Presence of clicks dry and short noise like breaking dead wood Presence of pops short noise in the low frequencies Presence of hiss higher background noise As ...

Страница 17: ... stage gain 15 dB Frequency response 20 Hz 1dB 30 kHz 0 dB RIAA compliant Signal to noise ratio 77 dB ASA A Total harmonic distortion THD 0 15 Measured in Hi position Crosstalk Typically 60 dB Output level 300 mV Lo mode 2 V Hi mode Power supply 12 V DC Consumption 12 6 W In standby position 1 6 W Dimensions 310 x 254 x 76 mm 12 2 x 10 x 3 inches Weight 3 3 Kg 7 3 pounds 17 Nagra VPS ...

Страница 18: ...puts PL P pre amplifier with phono stage The PL P is the first device specifically designed for audiophiles by Nagra This pre amplifier with a design inspired by the Nagra IV S runs on batteries It features a phono stage equipped with Nagra transformers whose quality is world enowned r VPA power amplifier with 845 tubes The VPA features an 845 push pull output stage without feedback It s an amplif...

Страница 19: ...magnétiques EN 61000 4 3 Immunity to electromagnetic fields EN 61000 4 3 Immunité aux décharges électrostatiques EN 61000 4 2 Immunity to electrostatic discharges EN 61000 4 2 Immunité aux transitoires électriques rapides en salves sur câble d alimentation EN 61000 4 4 level 2 1000V Immunity to bursts on mains line EN 61000 4 4 level 2 1000V Immunité aux transitoires électriques rapides en salves ...

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