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Reference Subwoofer 40, the new standard for timing, accuracy and rhyth
QED Subwoofer 40 has been designed primarily for low capacitance, as this has been identified by QED as a major factor making for a tight sound which retains the rhythm of the original piece - vital when it comes to the 'bottom end!" Minute timing errors are improved by QED's Complementary Conductor Technology™ combined with a special floating Zn/Mn ferrite jacket to absorb very high frequency noise signals outside the audible band. The QED Analoc2™ plug design helps to control eddy currents which can also affect the micro-timing of the audio signal, maintaining high- fidelity from start to finish.
Award Winning Heritage
QED has won more What Hi-fi Awards than any other single brand. With the Reference cable range this heritage is delivered directly and without compromise. All QED cables are designed using the top-down principle with Reference Subwoofer 40 representing the pinnacle of musical performance.
Floating Internal Ferrite Jacket
Absorbs high frequency noise signal components outside the audio band. When measured using high frequency measurement equipment, Audio 40 products convey a comparably cleaner and tighter signal pattern when its special Zn/Mn ferrite jacket is present. This has a beneficial effect on audio signal micro-timing and may account for the clear preference expressed for the ferrite jacket in listening tests.
Just Listen
Silver plated signal carriers, effective high-quality shielding and low eddy current plugs all combine to create audible sonic improvements. We urge you to compare it not only to your favourite cable but also alternative brands and models at any price!
All-new Analoc2™ connector design
The Analoc2™ design still features low bulk, high purity copper connectors alongside low mass metal barrels, but now cleverly substitutes high rigidity thermoplastic material for both the inner support structure and the cable strain relief to eliminate the detrimental effects of eddy currents. Although already smaller than in traditional bulk brass plugs, these unfavourable currents were still able to circulate weakly in the isolated metal body of the previous plug design. Now with the new material in place, these remnant resonant distortions are completely prevented from adversely affecting the information contained in the audio signal as it travels through the new plug.
To complete the RCA plug’s Analoc2™ upgrade and to help combat the skin effect, the hollow, gold plated, high-purity copper signal-pins are retained, while the effectiveness of the slip ring which locks in place the similarly plated, pure copper ground-terminal as the barrels are tightened, has also been improved.
Complementary Conductor Technology
Improves timing and detail, retaining the rhythm of the original piece - vital when it comes to the "bottom end." Unlike conventional analogue interconnects, Reference Audio 40 uses two silver-plated 99.999% Oxygen Free Copper conductors of different diameters to carry the same audio signal. This has the effect of providing an alternative signal path for more subtle audio components which might otherwise become time smeared in a single audio pathway. Reference Subwoofer 40 is further optimised by having a 25% smaller diameter than Reference Audio 40 making it more convenient for those long runs around the room.
OVERALL PERFORMANCE
Analoc2™ Technology
QED Analoc2™ RCA plugs feature high-purity copper signal and ground connections supported by a new non-conductive low eddy current body. The hollow central pin eliminates the skin effect at high frequencies and the revised locking barrel design clamps the dual blade ground connection firmly to the RCA sockets for improved noise rejection. The all new Analoc2™ design cleverly substitutes high rigidity thermoplastic material for both the inner support structure and the cable strain relief to eliminate the distorting effects of eddy currents, which are always present in ordinary plugs where bulk brass is used instead
Complementary Conductor Technology
Complementary conductor geometry utilises two conductors of different diameters to carry the same audio signal. This has the effect of providing an alternative path for high frequency audio components which might otherwise become time smeared in a single audio pathway.
Ferrite Insulation Technology
Like putting wooden wheels on a Ferrari, conventional RCA phono plugs have the potential to undo all of the hard work carried out by our carefully designed cordage. With Anamate and Analoc RCA plugs, the fidelity of the audio signal is maintained form start to finish.
Specifications
QED Complementary Conductor TechnologyTM with 99.99% Silver Plated Oxygen Free Copper
Zn/Mn ferrite jacket to absorb high frequency noise signals
Low losss foamed polyethylene (PE) dielectric
99.999% Oxygen Free Copper braid for 100% electromagnetic screening coverage in a coaxial geometry
Twin leaf 24c Gold plated QED Analoc2™ RCA plugs featuring high purity copper contacts, hollow centre pin and low eddy current design
Conductor Section 0.30 mm2
Parallel Capacitance 124 pF/m
Loop Resistance 0.076 Ohm/m
Loop Inductance 0.33 μH
Dissipation Factor @ 10 kHz 0.0210
Outside Diameter 6 mm
QED Lifetime Guarantee
