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SIMA PW-2000 & PW-3000 Integrated Amplifiers
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The SIMA PW-2000 and PW-3000 (both pictured above, respectively) were
the integrated amplifiers throughout the SIMA brand name's existence.
The PW-2000 produced 40 watts per channel and the PW-3000, 50 watts
per channel (both into 8 ohms). Both units came equipped with
user adjustable internal phono sections (moving magnet & moving coil).
Later production units of the PW-3000, designated the "se" version produced
higher output current and used an improved gain section.
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| MODEL |
PW-2000 |
PW-3000 & PW-3000se |
| Production Dates |
1980 - 1984 |
1985 - 92 & 1993 - 94 |
| Type |
Solid State |
Solid State |
| Configuration |
Stereo |
Stereo |
| Class Of Operation - Preamp |
A - Feedback differential |
A - Feedback differential |
| Class Of Operation - Amplifier |
AB |
A/AB |
| Line Level Inputs |
3 |
3 |
| Tone Controls |
Yes - defeatable |
No |
| Headphone output |
Yes |
No |
| Input Devices - Preamp |
J-FET |
J-FET |
| Output Devices - Preamp |
MOSFET |
MOSFET |
| Input Sensitivity |
200mV - 3.0V |
200mV - 3.5V |
| Input Impedance |
12,000 ohms |
12,000 ohms |
| Tape Loop |
1 |
1 |
| Preamplifier Output |
No |
No |
| Output Devices - Amp |
Bipolars - 2/channel |
Bipolars - 2/channel |
| Output Power @ 8 ohms |
40 Watts |
50 Watts |
| Output Power @ 4 ohms |
75 Watts |
85 Watts |
| Output Impedance |
0.04 |
0.02 |
| Damping Factor |
>200 |
>400 |
| Gain |
26dB |
30dB |
| Dynamic Headroom |
6dB |
6dB |
| Signal-to-noise Ratio |
> 85dB |
> 88dB |
| Maximum Output Voltage |
10.5 |
18 |
| Slew Rate |
15V/µs |
18V/µs |
| Maximum Peak Current |
12 amperes |
16 amperes |
| Bandwidth +0/-3dB |
10Hz - 60kHz |
1Hz - 80kHz |
| Crosstalk @ 1kHz |
-55dB |
-55dB |
| Intermodulation Distortion |
< 0.09% |
< 0.09% |
| THD (20Hz - 20kHz @ 1 watt) |
< 0.08 % |
< 0.09 % |
| Phono Section |
Internal MM & MC |
Internal MM & MC |
| Shipping weight |
17 lbs |
15 lbs |
| Dimensions |
17 x 2.75 x 8.75 in. |
17 x 2.75 x 8.75 in. |
| Phono Section Specifications |
MM / MC |
MM / MC |
| Input Sensitivity (for 1V output) |
2.0mV / 200µV |
2.8mV / 200µV |
| Bandwidth ±0.3dB |
30Hz - 20kHz |
30Hz - 20kHz |
| Gain |
40dB / 50dB |
40dB / 54dB |
| Crosstalk (20Hz - 20kHz) |
> 90dB |
> 95dB |
| THD |
< 0.05 |
< 0.05 |
| Maximum input level (at 1kHz) |
210mV / 21mV |
160mV / 11mV |
| S/N Ratio |
77dB / 65dB |
80dB / 66dB |
| Input Impedance |
47k ohms / 100 ohms |
47k ohms / 100 ohms |
| Max. output (1kHz @ 10Kohms) |
10 V rms |
10.5 V rms |
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