Product information ESX QL800 - 6 channel amplifier 

Compact QUANTUM amplifiers in Class D technology have been the spearhead of the ESX range for years.
The range extends from the 4 x 300 watt RMS QE1200.4, which won an EISA award, to 1 ohm stable monoblocks, to the palm-sized QS-TWO, which fits anywhere.
The large selection allows for a wide range of combination options.
But that's not all: ESX is now expanding the Quantum range to include two more Class D multi-channel amplifiers, which offer a whopping 6 x or 8 x 125 watt RMS at 2 ohms, top sound and the latest features.
The new models in the QUANTUM QL series occupy a special position in the ESX range in this context.
Ideally, 6- and 8-channel amplifiers are configured so that they do not drive high-performance 12- or 15-inch subwoofers, but rather develop their potential in 2- or 3-way systems.
ESX multi-channel amplifiers are designed to use the many channels and setting options to optimally supply tweeters, midrange speakers or bass-midrange speakers. In this configuration, they then have a much higher output than might be assumed at first glance - specifically up to 160 watts RMS per channel.
How is that possible? Very simple!
By actively distributing the frequency ranges across multiple channels or speakers in the vehicle, all speakers never play at full power at the same time.
In this case, the amplifier uses the power reserves of the generous power supply, which all channels can access if necessary.
ESX calls this feature Dynamic Headroom Technology, or DHR for short.
If you decide to use four 2-channel models instead of an 8-channel amplifier, for example, the DHR function or the dynamic performance gain would not be possible.
This is because the power supply of the first amplifier is not able to drive the channels of the second amplifier.
In this sense, 6- and 8-channel ESX amplifiers have a dynamic advantage in multi-channel applications.
If, for budget reasons, you still plan to use just one Quantum amplifier to provide the entire vehicle with sound, including a subwoofer, this is also no problem thanks to the features and bridgeability of all channels.
It is even possible to control the bass level using a wired bass remote.
We recommend bridging channels 5/6 with the QL800.6, which then provides 250 watts of mono power.
The QL800.8 can do even more, and thanks to the copy function it can provide 2 x 250 watts RMS at 4 ohms on the bridged channels 5/6 and 7/8, including bass control.
If you want even more comfort and performance, combine the new multi-channel amps with a monoblock QL800.1, for example, which then confidently delivers up to 800 watts RMS at one ohm.

Features

• Advanced Class D technology with very high efficiency
• Dynamic Headroom technology
• Selected and audiophile-tuned components
• Solid aluminum heat sink
• Heavy cast aluminum side panels
• High-level inputs with Error Protection System (EPS)
• Automatic switch-on function
• Start/Stop Ready
• MOSFET PWM power supply
• 3-way protection circuit
• Compact Bass level remote control

Technical data

• 6-channel Class D digital amplifier (1500 W)
• 6 x 80/125 Watt RMS @ 4/2 Ohm
• 3 x 250 Watt RMS @ 4 Ohm bridged
• HPF 50-5000 Hz (CH1/2)
• HPF 10-500 Hz (CH3/4 + CH5/6)
• LPF 50-5000 Hz (CH3/4 + CH5/6)
• RCA inputs via Molex
• RCA outputs via Molex
• Bandpass function (CH3/4 + CH5/6)
• Input selector switch CH2/4/6
• Dimensions 254 x 47 x 170 mm
• Efficiency up to 90%