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ST-Series High stability Class D amplifier
High stability Class D amplifier
The ST series is our new amplifier series which offers a very efficient and stable operation. The housing is a 2U 19“ metal case. This state of art amplifier design satisfies with a transparent sound, a high dynamic range and low distortions. They are suitable for subwoofers and full range speakers as well as line array setups. The innovative cooling system with automatic, speed controlled, low noise fans, offers a perfect cooling of all components. An integrated Clip Limiter protects the amplifier and speaker from unwanted clipping distortions. Female input XLR sockets are active balanced and have a link through to a male socket. The output section contains Neutrik NL4 sockets and binding posts for the 2CH Models.
ST-4200 GS1 (EAN) CODE: 4260318511469
ST-4400 GS1 (EAN) CODE: 4260318511476
ST-6400 GS1 (EAN) CODE: 4260318511483
Technical Details
| Model Name | ST-4200 | ST-4400 | ST-6400 |
|---|---|---|---|
| GS1 (EAN) CODE | 4260318511469 | 4260318511476 | 4260318511483 |
| System Type | 2-Channel Class D Amplifier | 4-Channel Class D Amplifier | 4-Channel Class D Amplifier |
| Output Power all channels driven 20Hz - 20 kHz, 0.1 % THD |
2 x 4000W @ 2Ohm 2 x 3000W @ 4Ohm 2 x 2000W @ 8Ohm |
4 x 2000W @ 2Ohm 4 x 1500W @ 4Ohm 4 x 1000W @ 8Ohm |
4 x 3000W @ 2Ohm 4 x 2250W @ 4Ohm 4 x 1500W @ 8Ohm |
| Output Power Bridge mode |
1 x 8000W @ 4Ohm 1 x 6000W @ 8Ohm |
2 x 4000W @ 4Ohm 2 x 3000W @ 8Ohm |
2 x 6000W @ 4Ohm 2 x 4500W @ 8Ohm |
| THD+N @ 8Ω 1kHz,1dB | ≤0.06% | ≤0.06% | ≤0.06% |
| Slew Rate | >60v/μs | >60v/μs | >60v/μs |
| Frequency Response @1Watt, 8Ohm |
10Hz -34kHz / ±0.3dB | 10Hz -34kHz / ±0.3dB | 10Hz -34kHz / ±0.3dB |
| Damping Factor (1kHz and below) |
>450:1 | >450:1 | >450:1 |
| Signal to Noise Ratio 20Hz -20 kHz |
>100dBA | >100dBA | >100dBA |
| Channel Separation Crosstalk@1kHz |
>70dB | >70dB | >70dB |
| Voltage Gain | 46dB (0,775V:153V) | 43dB (0,775V:108V) | 45dB (0,775V:134V) |
| Input Sensitivity | selectable 0.775V/1V/1.5V/2V | selectable 0.775V/1V/1.5V/2V | selectable 0.775V/1V/1.5V/2V |
| Input Impedance | 30k Ohm Balanced 15k Ohm Unbalanced |
30k Ohm Balanced 15k Ohm Unbalanced |
30k Ohm Balanced 15k Ohm Unbalanced |
| Front Control | Power switch, Gain control | Power switch, Gain control | Power switch, Gain control |
| Rear Control | Sensitivity Switch, Mode Switch |
Sensitivity Switch, Mode Switch |
Sensitivity Switch, Mode Switch |
| LED Indicators | Signal -30dB / -10dB, green Signal -4dB, yellow Clip, orange Protect, red power, green Bridge, yellow |
Signal -30dB / -10dB, green Signal -4dB, yellow Clip, orange Protect, red power, green Bridge, yellow |
Signal -30dB / -10dB, green Signal -4dB, yellow Clip, orange Protect, red power, green Bridge, yellow |
| Input Connectors | XLR Active balanced pin1 gnd / pin 2+ / pin3- |
XLR Active balanced pin1 gnd / pin 2+ / pin3- |
XLR Active balanced pin1 gnd / pin 2+ / pin3- |
| Output Connectors | 2 Neutrik NL4 Sockets 2 Binding Posts |
4 Neutrik NL4 Sockets | 4 Neutrik NL4 Sockets |
| Cooling | Continuously Variable speed fan |
Continuously Variable speed fan |
Continuously Variable speed fan |
| Protection | Full short circuit, Open circuit, thermal, Ultrasonic, RF Protection. Stable Into reactive or Mismatched loads |
Full short circuit, Open circuit, thermal, Ultrasonic, RF Protection. Stable Into reactive or Mismatched loads |
Full short circuit, Open circuit, thermal, Ultrasonic, RF Protection. Stable Into reactive or Mismatched loads |
| Load Protection | On/Off muting DC fault power Supply shutdown |
On/Off muting DC fault power Supply shutdown |
On/Off muting DC fault power Supply shutdown |
| Operating Voltage | 220V (+/- 10%) 50-60Hz | 220V (+/- 10%) 50-60Hz | 220V (+/- 10%) 50-60Hz |
| Fuse | T-25A | T-20A | T-25A |
| Dimensions (h/w/d) | 19“/2U 483W x 451D x 88H | 19“/2U 483W x 470D x 88H | 19“/2U 483W x 470D x 88H |
| Net weight | 22,5 kg | 23,0 kg | 25,5 kg |
