| The Electronics section |
-------------------------------------------------------------------------------------------------------- |
SA 500/900, SA 500B/900B, SA 500C/900C amplifiers
The 500 is the first amplifier of SA. The 500 and 900 (1981) were unofficially called "SA 500A" and "SA 900A". The B-series (1983) is the same as A-series, but has balanced inputs, individual power supplies and ground lift switch.
The C-series (1985) is based on the B-series, with improved "high-speed" design (different transistors), improved on/off switch and handles (front and rear).
The SA 450 (1987) is a single-channel version of the SA 900C, with selectable line-voltage (70V/100V).
The SA 500 and SA 900 series were produced between 1980 and 1990. |
SA500B/900B.pdf 
SA500C/900C.pdf |
SA 400X, SA 400/1 amplifiers
The SA 400 is a convection cooled Class AB amplifier. The 400X has a built-in crossover and the SA 400/1 is meant for 100V installations. They were part of SA's "Grey-line", a budget-conscious speaker/amplifier line.
The SA 400 series was produced between 1991 and 1995.
|
SA400.pdf |
SA 800/SA 1600 amplifiers
This series was a completely new design amplifier, based on Class G design. It also features DDC, SA's Dynamic Damping Control circuit.
Both SA 800 and SA 1600 started with the fan on the back of the amp. Later, the SA 1600 cooling circuit was re-designed with the fan on the front; Initially with a "closed" fan grill, later with a perforated fan grill.
The SA 800 and SA 1600 were produced between 1990 and 1998. |
SA800/1600.pdf |
F 60, X 60A electronic crossovers
The F 60 (1982) is a 6 channel electronic crossover (stereo 3-band) with Butterworth filter design. The filtering is done by "half filters"; The signal passes separate High Pass and Low Pass filters (so 12 filters in total). The F 60 successor, the X 60A (1984) features Bessel filter design, with a re-designed lay-out (improved signal-to-noise ratio, etc.), toroidial transformer,
6 "combined" filters (HP and LP on one board) and "wear-free" conductive plastic potmeters.
SA 3200 Series passive filters
The SA 3200 is a passive frequency dividing filter series, for two-way speaker designs. There was a choice of different filter frequencies, all 12dB/oct. |
SA60/3200.pdf |
PPA 1200
Digitally controlled class A/B power amplifier with DDC, AEC and ARMoR chassis.
The PPA 1200 is a high power output amplifier, featuring class AB design. This "audiophile" design, together with the capacitor bank and stabilized power supply, makes the PPA 1200 deliver a 1400W. of fast and sustained power per channel (peak @ 2 ohm).
The PPA 1200 is recommended for studio monitors or for MF or HF powering in larger, active systems.
Besides the excellent sound quality, the digital processor contains speaker-dedicated software for complete control. |
manual ppa1200.pdf
techdoc ppa1200.pd f |
PPE 2410
techdoc ppe2410.pdf Chapter 1-3 Chapter 4 Chapter 5-8 Chapter 9-12 Chapter 13 |
| |
Back to products |
|
