Si vous avez une idée de sa valeur "qualitative", merci d'avance de vos retours.
Acheté neuf par mes parents en 1980. Prix d'époque : env. 800$ l'ensemble. (edit : dans les 7000 francs m'a dit ma mère que je viens d'interroger)
Ce système en éléments séparés comporte un ampli 2x40 (SA-3000), un tuner (TX-3000), une platine cassette (CT-3000M) et une platine vinyle (PL-3000). Le tout relié à 2 enceintes biblio 2 voies/2HP/event (CS-X2) et calé dans un petit meuble.
Voici une doc d'époque trouvée, ainsi que les specs de l'ampli, accompagnés d'une photo de l'intérieur (trouvée sur le net, le mien est pareil).
La platine K7 est différente chez moi, les vu-mètres étant logé derrière une unique pièce rectangulaire.
Photos persos plus tard car je suis en cours de démontage/nettoyage des éléments.
Je possède également toute la doc originale si une personne est intéressée.
Pioneer SA-3000
Very rare mid-sized system taking up where the Series 20 left off. Varied but coherent design, an obvious effort on finish and... good components, too ! The SA-3000 amplifier hides very well its two power transformers and diecast hetsinks behind a deceptively simple front. One of those transformers is a toroidal. Very nice model and clean sound
The big little power source.
For an amp of this size to produce 40 watts of power per channel, you know that some truly advanced technology had to be applied. You're right. Though the size has been greatly reduced we've been able to achieve a very low distortion figure of only 0.02 %. The circuitry itself has been newly developed for the push-pull drive in the Class "A" driver stage of the power amp to greatly reduce distortion in the high frequencies and to improve overall transient characteristics.
Three Independent Power Source Circuits. Sound quality reaches new heights. The internal layout of the chassis has been incredibly simplified and hence is all the more faithful to amp fundamentals. Left and right sections are completely separated for improved quality. Three independent power circuits; 2 toroidal transformers as well as special circuitry for low-level signals greatly improve performance, reduce distortion, eliminate crosstalk while achieving a high level of separation.
Substantially Wide Dynamic Range and High Phono S/N Ratio. To keep up with today's recording techniques. A phono S/N ratio of 86dB has been realized by using 3-stage DC circuitry with our new low-noise transistors in the first stage of the equalizer amp. Which all means that the SA-3000 is a good enough amplifier to handle and reproduce even the latest directdisc recordings with wide dynamic ranges.
Pioneer SA-3000 Series Vintage Integrated Amplifier (1970)
SPECIFICATIONS
Semiconductors
Transistors: 30
Diodes: 22
Amplifier Section
Continuous Power Output of 40 watts* per channel, min., at 8 ohms from 20 Hertz to 20,000 Hertz with no more than 0.02% total harmonic distortion.
Continuous Power Output at 1kHz (both channels driven)
T.H.D: 0.03%, 8 ohms (44 watts per channel)
Total Harmonic Distortion (20 Hertz to 20,000 Hertz, 8 ohms, from AUX)
Continuous rated power output: No more than 0.02%
20 watts per channel power output: No more than 0.01%
1 watt per channel power output: No more than 0.03%
Intermodulation Distortion (50 Hertz : 7,000 Hertz = 4:1, 8 ohms, from AUX)
Continuous rated power output: No more than 0.005%
20 watts per channel power output: No more than: 0.004%
1 watt per channel power output: No more than 0.01%
Damping Factor (20 Hertz to 20,000 Hertz, 8 ohms): 30
Input (Sensitivity/Impedance)
PHONO: 2.5mV/60 kilohms
TUNER, AUX, TAPE PLAY: l50mV/50 kilohms
PHONO Overload Level (T.H.D 0.01%, 1,000Hz)
PHONO: 230mV
Output (Level/Impedance)
TAPE REC: 150mV/3 kilohms
Frequency Response
PHONO (RIAA Equalization): 20Hz to 20.000Hz,±0.3dB
TLNER, AUX, TAPE PLAY: 10Hz to 100,000Hz, ±3dB
Tone Control
BASS: ±10dB (100Hz)
TREBLE: ±10dB (10 kHz)
Loudness Contour (Volume control set at -40dB position): +6dB (100Hz), +3dB (1O,000Hz)
Hum and Noise (IHF, Short-circuited, A network)
PHONO: 86dB
TUNER, AUX, TAPE PLAY: 100dB
Hum and Noise (DIN, continuous power/50mW)
PHONO: 72dB/58dB
TUNER, AUX, TAPE PLAY: 84dB/60dB
Miscellaneous
Power Requirements: AC 220/240V, 50/60Hz
Power Consumption: 330W (max.)
Dimensions: 380(W) x 83(H) x 295(D) mm
Weight: Without Package: 7.6kg; With Package: 8.1 kg
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