ESX QL800 - 6 channel digital amplifier

QL800.6

Compact QUANTUM amplifiers with Class D technology have been the spearhead of the ESX range for years.
The range extends from the 4 x 300 watts RMS QE1200.4, winner of an EISA award, to 1 ohm stable monoblocks and the palm-sized QS-TWO, which fits anywhere.
The large selection allows for a wide range of possible combinations.
But that's not all: ESX is now expanding the Quantum range with two additional Class D multi-channel power amplifiers, which offer a rich 6 x or 8 x 125 watts RMS at 2 ohms, top-quality sound, and state-of-the-art 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 power-intensive 12- or 15-inch subwoofers, but rather unleash their potential in 2- or 3-way systems.
ESX multi-channel power amplifiers are designed to use the many channels and setting options to optimally supply tweeters, midrange speakers, or low-midrange speakers. In this configuration, they then have a significantly higher power output than might be assumed at first glance – specifically, up to 160 watts RMS per channel.
How is this possible? It's simple!
By actively distributing the frequency ranges across multiple channels or speakers in the vehicle, not all speakers ever 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 when needed. ESX refers
to this feature as 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 dynamic power gain would not be possible.
This is because the power supply of the first amplifier is not capable of driving the channels of the second amplifier.
From this perspective, 6- and 8-channel ESX amplifiers have a dynamic advantage in multi-channel applications.
If, for budgetary reasons, you still plan to use only one Quantum power amplifier to provide complete sound reinforcement for the vehicle, including a subwoofer, this is also no problem thanks to the equipment and bridgeability of all channels.
It is even possible to control the bass level via a wired bass remote. With the
QL800.6, we recommend bridging channels 5/6 for 250 watts of mono power. The QL800
.8 can do even more, providing 2 x 250 watts RMS at 4 ohms on the bridged channels 5/6 and 7/8, including bass control, thanks to the copy function.
If you want even more convenience and power, combine the new multi-channel amplifiers with, for example, a QL800.1 monoblock, 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 power-on function
• Start/stop ready
• MOSFET PWM power supply
• Triple protection circuit
• Compact bass level remote control

Technical data

• 6-channel Class D digital amplifier (1500 W)
• 6 x 80/125 watts RMS @ 4/2 ohms
• 3 x 250 watts RMS @ 4 ohms 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%