ESP4000 - Rack mounted, high definition amplifier
The ESP4000 is an ultra high definition 4 channel rack mountable power amplifier from KV2 Audio, specifically designed for optimised performance with ESD loudspeakers, as well as with other passive systems. For the ESP4000 all electronic circuit boards are first mounted on individual aluminium heat sinks, then on a secondary, internally sealed chassis, this leaves only the heatsink fins exposed. Two separate power supplies ensure increased reliability and continuous delivery of full power. Two shock mounted fans move air across the fins but never directly across the electronic components. This minimises maintenance cycles and improves the components lifespan and and reliability. The ESP4000 is housed in a professional 4U road rugged steel metal case with aluminium handles and evenly distributed weight.
Features
- Ultra high definition
- 4 channel rack mountable power amplifier
- Specifically designed for optimised performance with ESD loudspeakers, as well as with other passive systems
- 4 x 1000W / 2 Ohm
- Two separate power supplies ensure increased reliability and continuous delivery of full power
- Two shock mounted fans move air across the fins but never directly across the electronic components. Minimises maintenance cycles and improves the components lifespan and reliability
- Designed to drive the ESD and ESM range of passive loudspeaker units with superior sound quality
Specifications
System Acoustic Perfomance
| -1dB Response |
3Hz to 40kHz |
| Channel Crosstalk |
>60dB |
| Signal to Noise Ratio |
>115dB |
| Total Harmonic Distortion |
<0.005% (1W) / <0.01% (clip -1dB) |
Output Channels
| Amplifier Type |
High efficiency, Emitter coupled |
| Number of Channels |
4 |
| Total Output Power |
4000W |
| Max. Output Voltage |
78V (peak) per channel |
| Max. Output Current |
48A (peak) per channel |
| Minimum load impedance per channel |
2? |
| Out. Power 16? - 1 channel / 2 channels loaded |
175W / 160W (RMS) |
| Out. Power 8? - 1 channel / 2 channels loaded |
340W / 300W (RMS) |
| Out. Power 4? - 1 channel / 2 channels loaded |
600W / 500W (RMS) |
| Out. Power 2? - 1 channel / 2 channels loaded |
1000W / 800W (RMS) |
| Out. Power 16? - bridged |
600W (RMS) |
| Out. Power 8? - bridged |
1000W (RMS) |
| Out. Power 4? - bridged |
1600W (RMS), 2000W short term |
Signal Input
| Input Channels |
XLR |
| Input Sensitivity |
1.55V |
| Input Impedance |
20k? (balanced) |
| Signal Output |
XLR Through |
Speaker Input
| Speaker Input |
- / 4x Binding posts, Neutrik Speakon® |
Features
| Level Control |
-? to 0dB |
| Loudness bass enhancement |
+6dB @ 60Hz |
| RMS Limiter |
On / Off |
| Indicators |
Power ON/Thermal, Signal/Limiter |
Power
| Power Connector |
2x Neutrik PowerCon® |
| Operating Voltage |
115V / 230V / 250V |
| Operating Voltage Range |
100 to 120V@60Hz | 205 to 240V@50Hz | 225 to 260V@50Hz |
| Recommended Amperage |
2x20A 115V | 2x10A 230V | 2x10A 250V |
| Soft Start |
YES |
| Protection |
Thermal breaker |
| Cooling |
2x temperature controlled fans |
Physical Dimensions
| Height |
177.8 mm (7.0"), 4RU |
| Width |
481.4 mm (18.95") |
| Depth |
495 mm (19.5") |
| Weight |
37.5 kg (82.7lbs) |