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LightAV.com
Price
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Product Shot
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Description
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New for 2008-1/2!
QES-820
Eurosport 8" 400RMS Audiophile
SQ Subwoofer
US $319.95
FREE DOMESTIC SHIPPING
QES-1020
Eurosport 10" 500RMS Audiophile
SQ Subwoofer
US $344.95
FREE DOMESTIC SHIPPING
QES-1220
Eurosport 12" 500RMS Audiophile
SQ Subwoofer
US $364.95
FREE DOMESTIC SHIPPING
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- Being able to meet any one of the three distinct engineering
challenges met by CDTAUDIO new 8" and 10" and 12” Minibox Sub drivers would
be enough for most competitive models. These engineering masterpieces simultaneously
deal with the need to move large amounts of air necessary to overcome the
70+ db. of bass masking road noise in the moving automotive interior, while
accurately responding to the delicate changes in the harmonic structure of
the music.
All while doing so within an acoustic suspension enclosure that won't waste
the consumers valuable trunk space. Their depth, rugged, non-ferrous cast
baskets are coupled with a suspension system which allows the cone and voice
coil assembly to move as an exact analog of the electrical signal, while
at the same time controlling the limits of excursion and eliminating extraneous
motion. Real butyl rubber, though more expensive than conventional materials,
has been chosen for the outer surround; it provides far superior control,
longer life and excellent damping of the cone edge, and even lowers distortion
at the limits of excursion. Superior-pole vented motor structures propel
sturdy 2.5" aluminum voice coils for rapid heat dissipation, eliminating
the possibility of dynamic compression and lowering of output.
A magnetic system utilizing an aluminum shorting ring above the pole piece
lowers modulation distortion to new lows. Corrosion resistant gold 5-way
binding posts compliment these mechanical marvels.
By placing subwoofers of this quality in enclosures not much larger than
the shipping cartons they come in (as small as .2 cubic feet for the 8" and
.45 cubic feet for the 10") the effective resonance point is raised and the
subwoofer performs as if it were in an enclosure many times its size. The
advantages of acoustic suspension design are well known: the bass response
is free of any boominess or sloppyness and is deeper and tighter by far than
produced by any other subwoofer system. In addition, the slower rate of roll-off
below the system
resonance point provides superior deep bass output, while producing the fastest,
most accurate reproduction of musical impulses.
The air held in the box acts as a permanent, unchanging spring that together
with the driver's unvarying moving mass, determines the bass response characteristics
of the subwoofer system. This method is far superior to designs that must
depend on the subwoofers mechanical suspension spring tension, which constantly
changes with time and use, and therefore changes the response of the subwoofer.
By taking the natural sound, mature approach and designing for tight, clean,
musically oriented bass, the subwoofer is proof positive that bass in the
car doesn't have to be loud, boomy and sloppy.
- Model:QES-820 8” SQ Subwoofer
- Thiele-Small Parameters
Free Air Resonance: 44.1 Hz
Voice Coil DC Resistance: 3.54 Ohms
Voice Coil Inductance @ 1 kHz: 2.13 mH
Mechanical Q (Qms): 6.4
Electrical Q (Qes): 0.58
Total Q (Qts): 0.532
Compliance Volume (Vas): 7.25 l; 0.256 ft3
Moving mass, Diaphragm: 103 Gr
Motor Force Factor: 13.19 Tm
Specifications
Nom. Diameter: 8” (200mm)
Cone: Kevlar-Paper Honeycomb
Surround: NB Rubber
Sensitivity: 82 dB
Power Handling: 400 WRMS (800W Pk)
Frequency Response: 10 - 400 Hz
Nominal Impedance: 4 Ohms
Voice Coil Diameter: 2.0” (50mm)
Xmax: 11mm
Magnet Weight: 84 Oz stacked
Mounting depth 4.41” (112mm)
Cutout diameter 7.25” (184mm)
Outer diameter 8.25” (209mm)
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- Model:QES-1020 10” SQ
Subwoofer
- Diameter: 10” (250mm)
Cone: Kevlar-Paper Honeycomb
Surround: NB Rubber
Sensitivity: 83.2 dB
Power Handling: 500 WRMS (1000W Pk)
Frequency Response: 10 ~ 400 Hz
Nominal Impedance: 4 Ohms
Voice Coil Diameter: 2.6” (66mm)
Xmax: 20mm
Magnet Weight: 134 Oz stacked
Mounting depth 5.71” ( 145mm)
Cutout diameter 9.19” (234mm)
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- Model:QES-1220 12” SQ
Subwoofer
- Diameter: 12” (300mm)
Cone: Kevlar-Paper Honeycomb
Surround: NB Rubber
Sensitivity: 86.1dB
Power Handling: 500 WRMS (1000W Pk)
Frequency Response: 10 - 400 Hz
Nominal Impedance: 4 Ohms
Voice Coil Diameter: 2.6” (66mm)
Xmax: 20mm
Magnet Weight: 134 Oz stacked
Thiele-Small Parameters
Free Air Resonance: 35.2 Hz
Voice Coil DC Resistance: 3.68 Ohms
Voice Coil Inductance @ 1 kHz: 3.54 mH
Mechanical Q (Qms): 6.06
Electrical Q (Qes): 0.56
Total Q (Qts): 0.513
Compliance Volume (Vas): 30.36 l; 1.07 ft3
Moving mass, Diaphragm: 206 Gr
Motor Force Factor: 17.54 Tm
Motor Force Factor: 19.7 Tm
Mounting depth 6.22” (158mm)
Cutout diameter 11.0” (280mm)
Outer diameter 12.28” (312mm)
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HD-8SQ
8" Cast Frame
SQ Subwoofer
US $172.50
HD-10SQ
10" Cast Frame
SQ Subwoofer
US $192.50
HD-12SQ
12" Cast Frame
SQ Subwoofer
US $206.25
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- Features:
- Piston: Carbon Treated
Paper+kevlar Sandwich Nomex Honey Cone.
- Suspension: NBR Rubber
Surround With PLY-C Spider.
- Dust Cap: Vaccum Formed
Poly With Hot Print Logo
- Frame: Red Powder Coating
On Die Cast Aluminum Basket.
- Voice Coil: 2.5” 4Ohm
Voice coil On Thick Kapton Former
- Incorporated Aluminum
Short Ring
- W/Braided lead wire.
- Terminals: Nickel Plated
Dual Push Terminals.
- Magnet: Double Stack 140
Oz Motor W/Chrome Magnetic Plates
- Power handling: HD-8SQ
8” 400 Watt RMS 800 Watt Max
- Power handling: HD-10SQ
10” 500 Watt RMS 900 Watt Max
- Power handling: HD-12SQ
12” 600 Watt RMS 1200 Watt Max.
- Model:HD-8SQ 8” cast sound
quality
- subwoofer, designed for
extreme small enclosures .2-.4 Cu Ft.
- Power handling 400 watt
RMS Max 800 watt
-
- Model:HD-10SQ 10” cast sound quality
- Subwoofer designed for extreme small Enclosures
.5 to 1.0 Cu Ft.
- Power handling 500 watt RMS Max 900 watt
-
- Model:HD-12SQ 12” cast
sound quality
- Subwoofer designed for
extreme small Enclosures .7 to 1.2 Cu Ft.
- Power handling 800 watt
RMS Max 1200 watt
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ES-SQ800
8" Cast Frame
SQ Subwoofer
US $348.75
ES-SQ1000
10" Cast Frame
SQ Subwoofer
US $373.75
ES-SQ1200
12" Cast Frame
SQ Subwoofer
US $398.75
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|
- Being able to meet any
one of the three distinct engineering challenges met by CDTAUDIO new 8"
and 10" and 12” Minibox Sub drivers would be enough for most competitive
models. These engineering masterpieces simultaneously deal with the need
to move large amounts of air necessary to overcome the 70+ db. of bass masking
road noise in the moving automotive interior, while accurately responding
to the delicate changes in the harmonic structure of the music.
-
- All while doing so within
an acoustic suspension enclosure that won't waste the consumers valuable
trunk space. Their depth, rugged, non-ferrous cast baskets are coupled with
a suspension system which allows the cone and voice coil assembly to move
as an exact analog of the electrical signal, while at the same time controlling
the limits of excursion and eliminating extraneous motion. Real butyl rubber,
though more expensive than conventional materials, has been chosen for the
outer surround; it provides far superior control, longer life and excellent
damping of the cone edge, and even lowers distortion at the limits of excursion.
Superior-pole vented motor structures propel sturdy 2.5" aluminum voice
coils for rapid heat dissipation, eliminating the possibility of dynamic
compression and lowering of output.
-
- A magnetic system utilizing
an aluminum shorting ring above the pole piece lowers modulation distortion
to new lows. Corrosion resistant gold 5-way binding posts compliment these
mechanical marvels.
- By placing subwoofers
of this quality in enclosures not much larger than the shipping cartons
they come in (as small as .2 cubic feet for the 8" and .45 cubic feet for
the 10") the effective resonance point is raised and the subwoofer performs
as if it were in an enclosure many times its size. The advantages of acoustic
suspension design are well known: the bass response is free of any boominess
or sloppyness and is deeper and tighter by far than produced by any other
subwoofer system. In addition, the slower rate of roll-off below the system
resonance point provides superior deep bass output, while producing the fastest,
most accurate reproduction of musical impulses.
- The air held in
the box acts as a permanent, unchanging spring that together with the driver's
unvarying moving mass, determines the bass response characteristics of the
subwoofer system. This method is far superior to designs that must depend
on the subwoofers mechanical suspension spring tension, which constantly
changes with time and use, and therefore changes the response of the subwoofer.
-
- By taking the natural
sound, mature approach and designing for tight, clean, musically oriented
bass, the subwoofer is proof positive that bass in the car doesn't have to
be loud, boomy and sloppy.
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