SKU: 99576356813

ESX QS-FOUR - 4 Channel Amplifier

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Description

ESX QS-FOUR - 4 Channel AmplifierWith an impressive 2 x 95 watts RMS at 2 , the little QUANTUM QS TWO is anything but slim. On the contrary, it drives loudspeaker systems with 4, 3 or 2 impedance without difficulty and remains very stable even under critical loads. With a mono bridge output of 190 watts RMS at 4 , it can also elicit a lot of bass from subwoofers. Incidentally, it impresses with its high end sound: thanks to the huge bandwidth of up to 60,000 Hz and a sensationally

With an impressive 2 x 95 watts RMS at 2 Ω, the little QUANTUM QS-TWO is anything but slim. On the contrary, it drives loudspeaker systems with 4, 3 or 2 Ω impedance without difficulty and remains very stable even under critical loads. With a mono bridge output of 190 watts RMS at 4 Ω, it can also elicit a lot of bass from subwoofers. Incidentally, it impresses with its high-end sound: thanks to the huge bandwidth of up to 60,000 Hz and a sensationally low distortion factor of <0.007% (THD + N @ 5W), the QS-TWO is way ahead.

ESX masters the construction of Class D power amplifiers so well that the QS-TWO can come up with a sensational efficiency of up to 90% and EMC interference-free. The modern technology saves electricity, relieves the vehicle's electrical system and protects the high-quality components from overheating. Thanks to the high degree of efficiency, no thick power cables need to be pulled. If you want it to be very easy, you can use the QS-TWO-ISO, which can be supplied via a pre-assembled ISO cable harness, e.g. can be connected behind the car radio.

  • Efficient Class D Amplifier with ultra-compact dimensions
  • Heavy die-cast Heatsink with perfect cooling characteristics
  • Auto Turn-On Function
  • High Level Inputs with Error Protection System (EPS®)
  • Start/Stop Ready
  • RCA Inputs (via Molex)
  • Stereo RCA Output for e.g. active Subwoofers
  • HPF/LPF switchable
  • Perfect for HD-Audio

Specifications

  • 4-Channel Class D Plug+Play Nano Digital Amplifier
  • 4 x 35/45/60 Watts RMS @ 4/3/2 Ω
  • 2 x 120 Watts RMS @ 4 Ω bridged
  • 2 x HPF/LPF @ 80 Hz
  • THD+N @ 5W/RMS < 0,007%
  • Frequency Range 10 Hz - 60 kHz
  • Dimensions 90 x 35 x 80 mm
  • Efficiency up to 90%
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SKU: 99576356813

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4.0 ★★★★★
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J
Verified Purchase
Jimmy Pryor
Dallas, US
★★★★★ 5
Clear and powerful analysis.
Format: Paperback
The three books in Bowlby's trilogy on Attachment, Separation and Loss need to be read a whole. Using the studies and case histories of children being separated from their mothers and important others, in a wide range of circumstances from separations of only a few minutes, through separations of several weeks on up to prolonged and permanent separation due to divorce and death, Bowlby outlines a new way of understanding neurosis, psychosis and optimal, healthy functioning. Using the lens of a Darwinian analysis, and the case histories written up by psychoanalysts spanning decades, he compares and contrasts his new theory with that of previous psychological thought, especially the psychoanalytic tradition. I found his analysis penetrating and illuminating. It sets the stage and formulates the hypotheses for further research. Much of that research has now taken place and has borne out Bowlby's theories. Not all of it, of course. Because Bowlby's attachment theory became and continues to be such a foundational analysis for so much that has followed in its wake, from evolutionary psychology to child development to psychotherapy, it is a must read for anyone interested in these and related fields.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2012
H
Verified Purchase
Hero
Bozeman, US
★★★★★ 5
A briliant book
Format: Paperback
This book is very neat in its specifics about the effects of absence when a mother is not in a child's life and the roles and effects of mother figures as well. Myself dealing with abandonment issues from my mom and my mother figure in my life, this book really assists in identifying the issues caused from the absent parent. Though the book doesn't offer any real advice as to deal with these problems that arise, it identify's the issues and allows you to further your research in progression. The writing style used can get rather complex though, be prepared for that. I agree with everything provided in this book and recommend it to anyone who's interested in either the psychological effects of absence of a parent, or seek to identify it themselves.
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Reviewed in the United States on April 9, 2011
L
Verified Purchase
L Bond
Battle Creek, US
★★★★★ 5
The Attachment series is a brilliant trilogy.
Format: Paperback
It is so detailed - amazing.
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Reviewed in the United States on October 3, 2022
C
Verified Purchase
Cavett
Omaha, US
★★★★★ 5
Bowlby Books
Format: Paperback
As an MFT graduate student, first hand accounts are important. For the price, add depth to your research writing as the theory intended. Bowlby makes separation axiety, child anger and anger clear. This is a good read even for those who are not in a clinical field. Worth a lot more too me than I paid.
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Reviewed in the United States on November 26, 2011
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 4
Another piece to the triology offered by Bowlby
Format: Paperback
As with Bowlbys' other works, this classic furthers the hypothesis of negative emotional influence on the continued development of humans as we integrate with our social environments. I liked it...in fact, liked all of Bowlbys' writings.
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Reviewed in the United States on July 7, 2013

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