Rated 4.9 (84 reviews)
The Lab Gruppen E10:4 is a four-channel, 1,000 W install amplifier delivering 4 × 250 W from one rack unit, with Energy Star certification and standby draw under 1 W. Each channel is switchable between 70 V constant-voltage lines and Lo-Z loads, with asymmetric loading across channels, so a single chassis can drive a small sub, a run of 70 V ceiling speakers and full-range low-impedance pairs simultaneously. The IDEEA Class-D stage and Rail Sense Limiter keep distortion, clipping and mains draw low for background music and paging systems in commercial spaces.
4 × 250 W
Output power
70 V
Or Lo-Z 4-16 Ω
<1 W
Standby draw
1U
19″ rack, 6.2 kg
RSL mode and 16 Ω loadsThe per-channel RSL switch sets the limiter for Lo-Z or 70 V operation, and it affects available power: a 16 Ω load gets the full 250 W only in 70 V mode, while Lo-Z mode gives 125 W. The amplifier can also feed a 100 V line, delivering 250 W to a 100 V load tapped at 500 W. Set the switch per channel to match the connected load during commissioning.
Features
1,000 W across 4 flexible output channels in a 1U form factor
Energy Star certified with exceptionally low lifetime running costs
IntelliDrive delivers 4 × 250 W at 70 V constant voltage or into low-impedance loads
Asymmetric channel loading mixes different impedances on one amplifier
Proprietary IDEEA Class-D output stage
Rail Sense Limiter (RSL) greatly reduces signal clipping and simplifies configuration
Auto-standby and auto-power-on cut consumption to below 1 W between uses
Built-in 50 Hz high-pass filter, switchable per channel on the rear panel
Per-channel attenuation knob and signal LED on the rear panel for commissioning
Temperature-controlled fans with front-to-back airflow
Aluminium front panel with power, temperature and per-channel signal/limit LEDs
GPIO connector with power control and indication for system integration
Balanced analogue inputs and amplifier outputs on detachable screw terminals
Comprehensive fail-safe circuit protection
Specifications
| Amplifier channels | 4 |
| Total output, all channels driven | 1,000 W |
| Output per channel | 250 W into 4 Ω, 8 Ω or 70 V; 250 W into 16 Ω in 70 V mode (125 W in Lo-Z); 250 W to a 100 V load tapped at 500 W |
| Peak output voltage per channel | 100 V / 70 Vrms |
| Max output current | 14 Arms |
| THD (20 Hz – 20 kHz @ 1 W) | <0.1% |
| THD (@ 1 kHz, 1 dB below clipping) | <0.05% |
| Signal-to-noise ratio | >112 dBA |
| Channel separation @ 1 kHz | >70 dB |
| Frequency response | 2 Hz – 40 kHz |
| Input impedance | 20 kΩ |
| Common mode rejection | 50 dB |
| Gain | 35.2 dB (70 V mode); 31.2 dB (Lo-Z mode) |
| Level adjustment | Rear panel potentiometer per channel, -inf to 0 dB |
| Input connectors | 3-pin detachable screw terminals, electronically balanced (per channel) |
| Output connectors | 2-pin detachable screw terminals (per channel) |
| High-pass filter | Fixed 50 Hz, switchable per channel |
| GPIO | Contact-closure GPI power control and GPO power-state output on 2-pin screw terminals |
| Cooling | Two fans, front-to-rear airflow, temperature-controlled speed |
| Mains | 100-240 VAC nominal (85-265 VAC operating), IEC inlet |
| Standby consumption | <1 W |
| Dimensions (W × H × D) | 483 × 44 × 381 mm (1U, 19″) |
| Weight | 6.2 kg |
| Finish | Dark grey aluminium front, black steel chassis |
| Approvals | CE, ANSI/UL 60065 (ETL), CSA, CCC, PSE, Energy Star |
| Warranty | 1 year |
