1/ L'ampli Pioneer SM-3000 :
Ce qui me plait beaucoup dans ce modèle, c'est son extrême sobriété en face avant :
Remarquez sur la gauche de la face avant : une molette "input level" graduée en volts !
- PIONEER SM-3000 FRONT MAX WWW.HIFIDO.CO.jpg (152.39 Kio) Vu 5311 fois
- PIONEER SM-3000 FRONT MAX WWWHIFIDO.CO 1.jpg (153.86 Kio) Vu 5311 fois
Cette machine développe tout de même 100 W + 100 W sous 8 ohms ; on passe à 150 W + 150 W sous 4 ohms.
Elle annonce en puissance continue (Music Power IHF) 250 Watts (8 ohms) et 400 Watts (4 ohms).
La distorsion harmonique (THD) est de 0,05% à 50W/50W output.
Ses dimensions sont 422 L x 172 H x 288 P pour un poids de 15,1 Kg.
Lorsque l'on regarde l'arrière du Pioneer SM-3000, on peut coupler 3 paires d'enceintes ; maximum deux
paires ensembles. Bien pratique quand on a plusieurs paires chez soi.
Les deux input sont aussi bien pratiques et offrent plusieurs combinaisons.
- PIONEER SM-3000 REAR MAX 1 WWW.HIFIDO.CO.jpg (210.34 Kio) Vu 5311 fois
- PIONEER SM-3000 REAR MAX 2 WWW.HIFIDO.CO.jpg (196.89 Kio) Vu 5311 fois
Pour ceux qui souhaitent consulter les spécifications complètes.......
(source
http://www.audiodatabase.com
Form Stereo power amplifier
Circuit system : Whole page hardwired-connection pure complimentary OCL scheme
Music power (IHF) :400W (4ohm)
250W (8ohm)
Effective output :
- 1kHz One-side-channel operation : 150W/150W (4ohm)
100W/100W (8ohm)
- Both channel operation : 130W+130W (4ohm)
90W+90W (8ohm)
20Hz - 20kHz. Each-side channel operation: 85W+85W (8 ohms, 0.1% or less of distortion)
THD : 0.1% or less (at the time of an effective output)
0.05% or less (at the time of 50W/50W output)
Cross modulation distortion : 0.1% or less (at the time of an effective output)
0.05% or less (at the time of 50W/50W output)
Output bandwidth (IHF) : 5Hz - 50kHz
Frequency characteristic : 8Hz-70kHz+0 -1 dB
Input sensitivity/impedance (At the time of an effective output 1kHz) :
0.5V/50kohm
1V/60kohm
2V/60kohm
5V/60kohm
Load impedance : 4ohm-16ohm
Dumping factor : 100 (8 ohm, 1kHz) or more
A hum, a noise : 95dB or more
A low filter : 7Hz, a 20Hz switching type, 12dB / oct
An attached circuitry :
Input selector: 1, 2
Input-sensitivity selector: 0.5V, 1V, 2V, 5V
Speaker selector
Protection network indicator
Power consumption : Rate: 165W
Maxima: 500W
Dimensions : Width 422x height 172x depth of 288mm
Weight : 15.1kg
Stereo power amplifier of the highest-class specification which valued the delicate representation.
Large power and super-low-distortion-ization are realized until it banished all the interstage capacitors, it has adopted the 3 steps of whole page hardwired-connections Darlington pure complimentary OCL circuit system which adopted three-fold silicon diffusion type PNP and a NPN power transistor and it reaches a super-bass region from the first rank to a final stage.
DC potential has acquired the very high stability by adoption of the two-step differential amplifier.
What combined the electronic circuitry and power relay by nine transistors and 11 diode is adopted as a protection network, and it serves also as the power-source muting.
Two input terminals are carried and 4 position change is possible for Input sensitivity.
Moreover, three speaker outputs are carried.
The low cut-off filter of the sharp property of 12 dB/oct whose switching is possible for 7Hz and 20Hz is carried.
The survey data minutely checked for every set is attached.
Et le pré ampli Pioneer SC-3000....
doum,
mais pourquoi ne les mets-tu pas en valeur avec tes propres photos ? 
