JVC A-X 5 specifications

Category : Integrated amplifier

Brand : JVC

General :

connections:

Technical data:

special features:

manufacturer: JVC
model: A-X 5
type: Super A integrated amplifier
year of construction: 1979 - 1981
Made in Japan
color: silver
remote control: no
power consumption: 500 W max.
Dimensions: 450 x 140 x 420 mm (WxHxD)
Weight: 11.5 kg
New price approx.: 1'150 DM (list price)

Inputs:
- 2x phono (MM or MC)
- Phono MM : 2.5 mV/ 47 k643961b8da111c0a15d770a1109a86d4 (max. 250 mV)
- Phono MC : 0,2 mV/ 100 643961b8da111c0a15d770a1109a86d4 (max. 18 mV)
- Tuner, Aux, Tape 1, 2: 200 mV/ 47 k643961b8da111c0a15d770a1109a86d4
Outputs:
- Tape 1.2 Rec Out: 200 mV/ 680 643961b8da111c0a15d770a1109a86d4
- 2 Pairs of speakers
- Headphones

2x Phono (MM or MC)
Phono MM : 2.5 mV/ 47 k643961b8da111c0a15d770a1109a86d4 (max. 250 mV)
Phono MC : 0,2 mV/ 100 643961b8da111c0a15d770a1109a86d4 (max. 18 mV)
Tuner, Aux, Tape 1, 2: 200 mV/ 47 k643961b8da111c0a15d770a1109a86d4

Tape 1.2 Rec Out: 200 mV/ 680 ohm
2 pairs of speakers
Headphones

Continuous Output Power
- 8 643961b8da111c0a15d770a1109a86d4: 2 x 70 Watts (8 643961b8da111c0a15d770a1109a86d4s, 20- 20,000 Hz, THD: 0,007 %)
Dynamic power
- 8 ohms: ~ 2 x 100 watts
Intermodulation distortions:
- 0.004% (60 Hz: 7 kHz = 4:1) at 70 watts,8 ohms
Attenuation factor:
- 75 ( 1 kHz,8 ohms)
Frequency response: DC - 100 kHz +0, -3 dB
Power bandwidth : 5- 70,000 Hz
RIAA MC +- 0.3 dB, 20- 20,000 Hz
RIAA MM +- 0.2 dB, 20- 20,000 Hz
Signal-to-noise ratios MC/ MM/ Line: 70 dB/ 85 dB/ 110 dB
Tone control: Yes
- Bass: +- 8 dB at 100 Hz
- Treble: +- 8 dB at 10,000 Hz
Loudness: Switchable,adjustable
Subsonic: switchable, 18 Hz - 6 dB/ Oct .
Muting: switchable, -20 dB

8 ohms: 2 x 70 Watts (8 ohms, 20- 20,000 Hz, THD: 0,007 %)

8 ohms: ~ 2 x 100 watts

0.004% (60 Hz: 7 kHz = 4:1) at 70 watts,8 ohms

75 (1 kHz,8 ohms)

Bass: +- 8 dB at 100 Hz
Treble: +- 8 dB at 10,000 Hz

DC-Servo phono preamp
Super-A power amps
3-stage DC setup with passive preamp
fully discrete audio electronics setup

Other models of the same series:
Integrated amplifier:
JVC A-X 1
JVC A-X 2
JVC A-X 3
JVC A-X 4
JVC A-X 5
JVC A-X 7
JVC A-X 9

Tuner:
aeeab6e9c433bf1203327edd9ac653bd
JVC T-X 6 L

Picture: JVC A-X 5

Picture: JVC A-X 5

Stereoplay April 1981 9 amplifiers in comparison

Quite rare integrated amplifier from the In the late seventies of JVC in the then fashionable pseudo-puristic front flap design
noticeably slimmed down compared to the big brother A-X9 in terms of haptics, internal structure and circuit luxury equipment, but hardly poor in quality compared to this one due to sophisticated and well-equipped audio electronics, which would currently look good on an average "high-end" integrated amplifier of the € 1500 class - but ultimately is not offered there after all.
The silicon and the circuit technology used in the A-X5 is simply exquisite from today's point of view, e.g.:
- 2SK146 JFETs in the phono preamp, 2SK150 JFETs in the Class-A driver stage and 2SC2525L/ 2SA1075 RETs as output stage
- Zero electrolytic capacitors in signal path and a real DC structure not only of individual amplifier stages but of the
The only coupling capacitors are a pair of oversized PP foil-Cs at the output of the Phonopre.
The whole thing runs on +- 50V and has a bandwidth that would also make the amp usable as an RF amplifier.
Separate transformer windings for phonopre and driver stage. 2x 6800 µF charging electrolytic capacitors per channel for the output stages and complex voltage regulators for the pre-stages.
Of course, everything is built up completely discreetly.
Of course, the A-X5 needs a fresh set of electrolytic capacitors after 34 years, but its scope is kept within manageable limits thanks to the prudence in the design of the circuit.
On the negative side, the A-X5 offers quite modest crosstalk attenuation between the inputs and is not exactly low impedance stable.
In this respect, a typical Seventies amp, which should not be concealed at this point.

2SK146 JFETs in the phono preamp, 2SK150 JFETs in the Class-A driver stage and 2SC2525L/ 2SA1075 RETs as output stage
Zero electrolytic capacitors in signal path and a real DC structure not only of individual amplifier stages but of the entire device

JVC A-X 5