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| − | __NOTOC__
| + | == Daten == |
| − | == Data == | + | {{Navigation}} |
| − | {{navigation}} | + | '''Allgemein''' |
| − | '''General:''' | + | * Hersteller: [[JVC]] |
| − | * Manufacturer: [[JVC]] | + | * Modell: A-X5 |
| − | * Model: A-X 5 | + | * Baujahre: 1979 |
| − | * Type: Super-A integrated amplifier | + | * Hergestellt in: Japan |
| − | * Years of manufacture: 1979 - 1981 | + | * Farbe: silber |
| − | * Made in: Japan | + | * Typ: Analog |
| − | * Color: Silver | + | * Fernbedienung: nein |
| − | * Remote control: no | + | * Leistungsaufnahme: max ~ 500 Watt |
| − | * Power consumption: 500 W max. | + | * Abmessungen: ~ 450 x 140 x 420 mm |
| − | * Dimensions: 450 x 140 x 420 mm (WxHxD) | + | * Gewicht: ~ 11,5 kg |
| − | * Weight: 11,5 kg | + | * Neupreis ca.: 1150 DM (Listenpreis) |
| − | * Original price approx.: 1'150 DM (list price) | |
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| | | | |
| − | '''Connections:''' | + | '''Anschlüsse''' |
| − | * Inputs: | + | * Eingänge: |
| − | ** 2x Phono (MM or MC) | + | ** 2x Phono (MM oder MC) |
| − | ** Phono MM : 2.5 mV/ 47 kOhm (max. 250 mV) | + | ** Phono MM : 2.5mV/47kO (max. 250mV) |
| − | ** Phono MC : 0.2 mV/ 100 Ohm (max. 18 mV) | + | ** Phono MC : 0,2mV/100O (max. 18mV) |
| − | ** Tuner, Aux, Tape 1, 2: 200 mV/ 47 kOhm. | + | ** Tuner,Aux,2x Tape |
| − | * Outputs: | + | ** Tuner,Aux,Tape1/2: 200mV/47kOhm |
| − | ** Tape 1,2 Rec Out: 200 mV/ 680 Ohm. | + | * Ausgänge: |
| − | ** 2 pairs of speakers | + | ** Tape 1,2 Rec Out 200mV/ 680 OHm |
| − | ** Headphones | + | ** 2 x Lautsprecherpaar 8Ohm |
| | + | ** Kopfhörer |
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| | | | |
| − | '''Technical Data:''' | + | '''Technische Daten''' |
| − | * Continuous output power | + | * Dauerausgangsleistungleistung |
| − | ** 8 Ohm: 2 x 70 Watt (8 Ohm, 20- 20.000 Hz, THD: 0,007 %) | + | ** 8 Ohm: 2 x 70 Watt (8Ohm,20Hz-20kHz,THD: 0,007%) |
| − | * Dynamic power | + | * Dynamikleistung |
| | ** 8 Ohm: ~ 2 x 100 Watt | | ** 8 Ohm: ~ 2 x 100 Watt |
| − | * Intermodulation distortion: | + | * Intermodulationsverzerrungen: |
| − | ** 0.004% (60 Hz: 7 kHz = 4:1) at 70 watts,8 ohms. | + | ** 0.004% (60Hz: 7kHz = 4:1) bei 70 Watt,8Ohm |
| − | * Attenuation factor: | + | * Dämpfungsfaktor: |
| − | ** 75 (1 kHz,8 ohms) | + | ** 75 (1kHz,8Ohm) |
| − | * Frequency response: DC - 100 kHz +0, -3 dB | + | * Frequenzgang: DC - 100kHz +0, -3dB |
| − | * Power bandwidth : 5- 70,000 Hz | + | * Leistungsbandbreite : 5Hz - 70.000Hz |
| − | * RIAA MC +- 0.3 dB, 20- 20,000 Hz | + | * RIAA MC +- 0,3dB,20-20.000Hz |
| − | * RIAA MM +- 0.2 dB, 20- 20,000 Hz | + | * RIAA MM +- 0,2dB,20-20.000Hz |
| − | * Signal-to-noise ratios MC/ MM/ Line: 70 dB/ 85 dB/ 110 dB | + | * Signalrauschabstände MC/MM/Line: 70dB/85dB/110dB |
| − | * Tone control: Yes | + | * Klangregelung: Ja |
| − | Bass: +- 8 dB at 100 Hz | + | ** Bass: +- 8dB bei 100Hz |
| − | Treble: +- 8 dB at 10,000 Hz
| + | ** Höhen: +- 8dB bei 10.000Hz |
| − | * Loudness: switchable, adjustable | + | * Loudness: Schaltbar,regelbar |
| − | * Subsonic: switchable, 18 Hz - 6 dB/ Oct. | + | * Subsonic: schaltbar, 18Hz - 6dB/Oct. |
| − | * Muting: switchable, -20 dB | + | * Muting: schaltbar, -20dB |
| | | | |
| | + | '''Besondere Ausstattungen''' |
| | + | * DC-Servo Phonovorstufe |
| | + | * Super-A Endstufen |
| | + | * 3-stufiger DC-Aufbau mit passiver Vorstufe |
| | + | * voll diskreter Aufbau der Audioelektronik |
| | | | |
| − | '''Special features:'''
| + | == Bemerkungen == |
| − | * DC-Servo phono preamplifier
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| − | * Super-A output stages
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| − | * 3-stage DC construction with passive preamplifier
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| − | * fully discrete construction of the audio electronics
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| | | | |
| − | | + | == Bilder == |
| − | == Notes == | |
| − | * Other models in the same series:
| |
| − | * Integrated amplifiers:
| |
| − | * [[JVC A-X 1]]
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| − | * [[JVC A-X 2]]
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| − | * [[JVC A-X 3]]
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| − | * [[JVC A-X 4]]
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| − | * [[JVC A-X 5]]
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| − | * [[JVC A-X 7]]
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| − | * [[JVC A-X 9]]
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| − | | |
| − | | |
| − | * [[tuner]]
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| − | * [[JVC T-X 5]]
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| − | * [[JVC T-X 6 L]]
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| − | | |
| − | == Pictures ==
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| − | * Picture: JVC A-X 5
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| | http://www.hifi-wiki.de/images/7/7b/JVC_A-X5_front_2.jpg | | http://www.hifi-wiki.de/images/7/7b/JVC_A-X5_front_2.jpg |
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| − | * Picture: JVC A-X 5
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| | http://www.hifi-wiki.de/images/e/ed/JVC_A-X5_backside.jpg | | http://www.hifi-wiki.de/images/e/ed/JVC_A-X5_backside.jpg |
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| − | == Tests == | + | == Berichte == |
| − | | |
| − | * Stereoplay April 1981 9 amplifiers in comparison
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 01.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 02.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 03.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 04.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 05.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 06.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 07.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 08.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 09.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 10.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 11.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 12.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 13.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 14.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 15.jpg|1000px]]
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| − | [[File:Stereoplay April 1981 9 Verstärker im Vergleich 16.jpg|1000px]]
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| − | == Reports ==
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| − | * Quite rare integrated amplifier from the late seventies by JVC in the then fashionable pseudo-puristic front flap design.
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| − | * Compared to the big brother A-X9 noticeably slimmed down in terms of haptics, internal design and circuit luxury equipment, but compared to this hardly impoverished quality by a sophisticated and well-equipped audio electronics, which is currently an average "high-end" integrated amplifier of the 1500 € class would be good to face - but then ultimately not offered there.
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| − | The silicon and circuitry used in the A-X5 is, from today's point of view, simply exquisite, for example:
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| − | 2SK146 JFETs in the phono preamplifier, 2SK150 JFETs in the Class-A driver stage and 2SC2525L/ 2SA1075 RETs as output stage.
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| − | ** Zero electrolytic capacitors in signal path and a true DC design not only of individual amplifier stages but of the entire device.
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| − | * The only coupling capacitors are a couple of oversized PP foil C's at the output of the Phonopre`s.
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| − | The whole thing runs at +- 50V and has a bandwidth that would make the amp usable as an HF amplifier.
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| − | Separate transformer windings for phonopre and driver stage. 2 x 6800 µF charging electrolytic capacitors per channel for the output stages and complex voltage regulators for the preamplifiers.
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| − | Everything is of course fully discrete.
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| − | Of course the A-X5 needs a fresh set of electrolytic capacitors after 34 years, but thanks to the careful design of the circuitry, the amount of capacitors is manageable.
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| − | * On the negative side, the A-X5 offers quite modest crosstalk attenuation between inputs and is not exactly low impedance stable.
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| − | * In this respect a typical Seventies amp, which should not be concealed here.
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| | == Links == | | == Links == |
| | | | |
| − | | + | [[Kategorie:Vollverstärker]] |
| − | [[Category:Integrated amplifier]] | |