SQ Series Power Amplifiers
The SQ Series offers a wide range of highly cost-effective and flexible amplifier options. With power ratings ranging from 2 x 900 watts at 4 ohms to 4 x 1,200 watts at 4 ohms, seven different models are available. The Class H output stage is powered by an oversized analogue power supply featuring a powerful toroidal transformer. This ensures stable performance, even with a weak or unstable mains supply. The front panel features a power switch and several LEDs that indicate the amplifier’s operating status, making it easy to monitor.
Overview of 2-channel devices
| Model | SQ-1200 | SQ-1600 | SQ-2000 | SQ-2400 |
| System Type | 2-channel Class H amplifier | 2-channel Class H amplifier | 2-channel Class H amplifier | 2-channel Class H amplifier |
| Output power | 2 x 1200W @ 2Ohm 2 x 900W @ 4Ohm 2 x 600W @ 8Ohm |
2 x 1600W @ 2Ohm 2 x 1200W @ 4Ohm 2 x 800W @ 8Ohm |
2 x 2000W @ 2Ohm 2 x 1500W @ 4Ohm 2 x 1000W @ 8Ohm |
2 x 2400W @ 2Ohm 2 x 1800W @ 4Ohm 2 x 1200W @ 8Ohm |
| Dimensions | 19“/2U 483mm×486mm×90mm |
19“/2U 483mm×486mm×90mm |
19“/2U 483mm×486mm×90mm |
19“/2U 483mm×486mm×90mm |
| Net weight | 24,5 kg | 25,5 kg | 26,5 kg | 27,5 kg |
Overview of 4-Channel Devices
| Model | SQ-1604 | SQ-2404 | SQ-3204 |
| System Type | 4-channel Class H amplifier |
4-channel Class H amplifier |
4-channel Class H amplifier |
| Output power | 4 x 600W @ 4Ohm 4 x 400W @ 8Ohm |
4 x 900W @ 4Ohm 4 x 600W @ 8Ohm |
4 x 1200W @ 4Ohm 4 x 800W @ 8Ohm |
| Dimensions | 19“/2U 483mm×492mm×90mm | 19“/2U 483mm×492mm×90mm |
19“/2U 483mm×492mm×90mm |
| Net weight | 22,0 kg | 25,0 kg | 27,0 kg |
Technical Specifications
for Two-Channel Devices
| Model | SQ-1200 | SQ-1600 | SQ-2000 | SQ-2400 |
| GS1 (EAN) CODE | 4260318511940 | 4260318511957 | 4260318511964 | 4260318511971 |
| System Type | 2-channel Class H amplifier |
2-channel Class H amplifier |
2-channel Class H amplifier |
2-channel Class H amplifier |
| Output power | 2 x 1200W @ 2Ohm 2 x 900W @ 4Ohm 2 x 600W @ 8Ohm |
2 x 1600W @ 2Ohm 2 x 1200W @ 4Ohm 2 x 800W @ 8Ohm |
2 x 2000W @ 2Ohm 2 x 1500W @ 4Ohm 2 x 1000W @ 8Ohm |
2 x 2400W @ 2Ohm 2 x 1800W @ 4Ohm 2 x 1200W @ 8Ohm |
| Output Power (Bridge Mode) | 1 x 2400W @ 4Ohm 1 x 1800W @ 8Ohm 1 x 1200W @16Ohm |
1 x 3200W @ 4Ohm 1 x 2400W @ 8Ohm 1 x 1600W @16Ohm |
1 x 4000W @ 4Ohm 1 x 3000W @ 8Ohm 1 x 2000W @16Ohm |
1 x 4800W @ 4Ohm 1 x 3600W @ 8Ohm 1 x 2400W @16Ohm |
| THD+N @ 8Ω 1kHz,1dB | ≤0.5% @ 8Ω 1kHz | ≤0.5% @ 8Ω 1kHz | ≤0.5% @ 8Ω 1kHz | ≤0.5% @ 8Ω 1kHz |
| Slew Rate | >26V/μs | >26V/μs | >26V/μs | >26V/μs |
| Frequency Response @1Watt, 8Ohm |
10Hz - 20KHz / ±0.3dB | 10Hz - 20KHz / ±0.3dB | 10Hz - 20KHz / ±0.3dB | 10Hz - 20KHz / ±0.3dB |
| Damping Factor (@100Hz) |
>3000 | >3000 | >3000 | >3000 |
| Signal to Noise Ratio 20Hz -20 kHz |
>100dB | >100dB | >100dB | >100dB |
| Channel Separation Crosstalk@1kHz |
>70dB | >70dB | >70dB | >70dB |
| Voltage Gain | 39dB (0,775V:69.5V) | 40.3dB (0,775V:80.5V) | 41.3dB (0,775V:89.5V) | 42dB (0,775V:98V) |
| Input Sensitivity | 0.775V/1V/1.4V/2V | 0.775V/1V/1.4V/2V | 0.775V/1V/1.4V/2V | 0.775V/1V/1.4V/2V |
| Input Impedance | 20k Ohm Balanced 10k Ohm Unbalanced |
20k Ohm Balanced 10k Ohm Unbalanced |
20k Ohm Balanced 10k Ohm Unbalanced |
20k Ohm Balanced 10k Ohm Unbalanced |
| Frontpanel Controls | Power button, volume control | Power button, volume control | Power button, volume control | Power button, volume control |
| Backpanel Controls | Sensitivity switch, Mode switch |
Sensitivity switch, Mode switch |
Sensitivity switch, Mode switch |
Sensitivity switch, Mode switch |
| LED Indicators | Signal, Clip, Protect, Power, Bridge |
Signal, Clip, Protect, Power, Bridge |
Signal, Clip, Protect, Power, Bridge |
Signal, Clip, Protect, Power, Bridge |
| Input Connectors | XLR electronically balanced Pin 1 GND Pin 2+ Pin 3- |
XLR electronically balanced Pin 1 GND Pin 2+ Pin 3- |
XLR electronically balanced Pin 1 GND Pin 2+ Pin 3- |
XLR electronically balanced Pin 1 GND Pin 2+ Pin 3- |
| Output Connectors | 2 Neutrik NL4-Sockets 2 Anschlussklemmen |
2 Neutrik NL4-Sockets 2 Anschlussklemmen |
2 Neutrik NL4-Sockets 2 Anschlussklemmen |
2 Neutrik NL4-Sockets 2 Anschlussklemmen |
| Cooling | Ultra Quiet fan | Ultra Quiet fan | Ultra Quiet fan | Ultra Quiet fan |
| Protection | Complete short circuit, Open circuit, Thermal, Ultrasonic, HF protection Stable with reactive or unmatched loads |
Complete short circuit, Open circuit, Thermal, Ultrasonic, HF protection Stable with reactive or unmatched loads |
Complete short circuit, Open circuit, Thermal, Ultrasonic, HF protection Stable with reactive or unmatched loads |
Complete short circuit, Open circuit, Thermal, Ultrasonic, HF protection Stable with reactive or unmatched loads |
| Load Protection | Mute On/Off DC fault current Power shutdown |
Mute On/Off DC fault current Power shutdown |
Mute On/Off DC fault current Power shutdown |
Mute On/Off DC fault current Power shutdown |
| Operating Voltage | 230V (+/- 10%), 50-60Hz USA Version 110V (+/- 10%), 50-60Hz |
230V (+/- 10%), 50-60Hz USA Version 110V (+/- 10%), 50-60Hz |
230V (+/- 10%), 50-60Hz USA Version 110V (+/- 10%), 50-60Hz |
230V (+/- 10%), 50-60Hz USA Version 110V (+/- 10%), 50-60Hz |
| Idle Power Consumption |
< 38W | < 38W | < 40W | < 42W |
| Max. Power Consumption |
< 980W | < 1400W | < 2100W | < 3000W |
| Dimensions | 19“/2U 483mm×486mm×90mm | 19“/2U 483mm×486mm×90mm | 19“/2U 483mm×486mm×90mm | 19“/2U 483mm×486mm×90mm |
| Net weight | 24,5 kg | 25,5 kg | 26,5 kg | 27,5 kg |
Technical Specifications
for Four-Channel Devices
| Model | SQ-1604 | SQ-2404 | SQ-3204 |
| GS1 (EAN) CODE | 4260318511988 | 4260318511995 | 4260318512015 |
| System Type | 4-Kanal Class H Verstärker |
4-Kanal Class H Verstärker |
4-Kanal Class H Verstärker |
| Output power | 4 x 600W @ 4Ohm 4 x 400W @ 8Ohm |
4 x 900W @ 4Ohm 4 x 600W @ 8Ohm |
4 x 1200W @ 4Ohm 4 x 800W @ 8Ohm |
| Output Power (Bridge Mode) | 2 x 1600W @ 4Ohm 2 x 1200W @ 8Ohm 2 x 800W @16Ohm |
2 x 2400W @ 4Ohm 2 x 1800W @ 8Ohm 2 x 1200W @16Ohm |
2 x 3200W @ 4Ohm 2 x 2400W @ 8Ohm 2 x 1600W @16Ohm |
| THD+N @ 8Ω 1kHz,1dB | ≤0.5% | ≤0.5% | ≤0.5% |
| Slew Rate | >28V/μs | >28V/μs | >28V/μs |
| Frequency Response @1Watt, 8Ohm |
10Hz - 20kHz ±0.4dB |
10Hz - 20kHz ±0.4dB |
10Hz - 20kHz ±0.4dB |
| Damping Factor (@100Hz) |
>3000 | >3000 | >3000 |
| Signal to Noise Ratio 20Hz -20 kHz |
>100dB | >100dB | >100dB |
| Channel Separation Crosstalk@1kHz |
>70dB | >70dB | >70dB |
| Voltage Gain | 36dB (0,775V:49V) | 39dB (0,775V:69.5V) | 40.3dB (0,775V:80.5V)) |
| Input Sensitivity | 0.775V/1V/1.4V/2V | 0.775V/1V/1.4V/2V | 0.775V/1V/1.4V/2V |
| Input Impedance | 20k Ohm Balanced 10k Ohm Unbalanced |
20k Ohm Balanced 10k Ohm Unbalanced |
20k Ohm Balanced 10k Ohm Unbalanced |
| Frontpanel Controls | Netzschalter, Lautstärke Regler | Netzschalter, Lautstärke Regler | Netzschalter, Lautstärke Regler |
| Frontpanel Controls | Empfindlichkeitsschalter, Modusschalter |
Empfindlichkeitsschalter, Modusschalter |
Empfindlichkeitsschalter, Modusschalter |
| LED Indicators | Signal, Clip, Protect, Power, Bridge |
Signal, Clip, Protect, Power, Bridge |
Signal, Clip, Protect, Power, Bridge |
| LED Indicators | XLR elektronisch symmetrisch Pin 1 GND Pin 2+ Pin 3- |
XLR elektronisch symmetrisch Pin 1 GND Pin 2+ Pin 3-Anzeige |
XLR elektronisch symmetrisch Pin 1 GND Pin 2+ Pin 3- |
| Input Connectors | 4 Neutrik NL4-Buchsen | 4 Neutrik NL4-Buchsen | 4 Neutrik NL4-Buchsen |
| Cooling | Geräuscharmer Lüfter | Geräuscharmer Lüfter | Geräuscharmer Lüfter |
| Protection | Vollständiger Kurzschluss, Offener Stromkreis, Thermisch, Ultraschall, HF-Schutz Stabil bei reaktiven oder nicht angepassten Lasten |
Vollständiger Kurzschluss, Offener Stromkreis, Thermisch, Ultraschall, HF-Schutz Stabil bei reaktiven oder nicht angepassten Lasten |
Vollständiger Kurzschluss, Offener Stromkreis, Thermisch, Ultraschall, HF-Schutz Stabil bei reaktiven oder nicht angepassten Lasten |
| Load Protection | Ein-/Aus-Stummschaltung DC-Fehlerstrom Versorgungsabschaltung |
Ein-/Aus-Stummschaltung DC-Fehlerstrom Versorgungsabschaltung |
Ein-/Aus-Stummschaltung DC-Fehlerstrom Versorgungsabschaltung |
| Operating Voltage | 230V (+/- 10%), 50-60Hz USA Version 110V (+/- 10%), 50-60Hz |
230V (+/- 10%), 50-60Hz USA Version 110V (+/- 10%), 50-60Hz |
230V (+/- 10%), 50-60Hz USA Version 110V (+/- 10%), 50-60Hz |
| Idle Power Consumption |
< 30W | < 30W | < 40W |
| Max. Power Consumption |
< 1200W | < 2000W | < 3000W |
| Dimensions | 19“/2HE 483mm×492mm×90mm | 19“/2HE 483mm×492mm×90mm | 19“/2HE 483mm×492mm×90mm |
| Net weight | 22 kg | 25 kg | 27 kg |
Product Overview
Power Amplifiers and DSPs
