Image Dynamics USA IDQS-8 User manual
IDQS-8
IDQS-10
IDQS-12
Please read through this manual to familiarize yourself with your new subwoofer. Should your Image Dynamics
subwoofer ever require service, you will need to have the original dated receipt.
OWNERS MANUAL
IDQ Shallow Mount Subwoofer
∆Caution ∆
High powered audio systems in a vehicle are capable of generating
higher than “Live Concert” levels of sound pressure. Continued ex-
posure to excessively high volume sound levels could cause hearing
loss or damage. Also, operation of a motor vehicle while listening to
audio equipment at high volume levels may impair your ability to hear
external sounds such as horns, warning signals, or emergency vehicles—
thus creating a potential traffic hazard. In the interest of safety,
Image Dynamics USA highly recommends listening at lower volume levels
when driving.
3
IMAGE DYNAMICS IDQ SHALLOW SUBWOOFER
Shallow Mount Design to fit in small sealed enclosures for more mounting options without
sacrificing sound quality.
Parabolic Santoprene Surround to ensure cone linearity and
control.
Poly/Mica Cone for strong and distortion free bass reproduction
while still reproducing all the musical nuances.
Nomex Spider for consistent control throughout the piston range and life of the woofer.
Poly Carbonate Neck Joint allows the woofer to handle more raw power without any
mechanical failure or flex and isolate the heat from the BASV voice coil former from the
cone.
FOR MAXIMUM SPL OUTPUT
ENCLOSURES
DESIGNEDFO R
SEALED
WIRING GUIDELINES
It is highly recommended that you seek an authorized Image Dynamics dealer to properly
setup, wire and install your woofers for maximum performance.
There are multiple ways to wire your woofers depending on your amplifier and system
configuration. The use of multiple voice coils offers you more versatility in system con-
figuration. It is important to know the limits of your amplifier to optimize its performance.
It is always better to use your subwoofer in a mono / bridged mode if your amplifier has
the capabilities. There are basically four different types of wiring configurations: Series,
Parallel, Series-Parallel or Parallel-Parallel. It is possible to change the impedance or load
by how the speakers are to be wired and by the quantity of woofers used.
Parallel wiring a dual 4 ohm sub = 2 ohm
Parallel-Parallel wiring two dual 4 ohm subs = 1 ohm Series-Parallel wiring two dual 4 ohm subs = 4 ohm
DUAL VOICE COIL WIRING
(DUAL 4 OHM)
PARALLEL SERIES
SERIES PARALLEL
PARALLEL-PARALLEL
Series wiring a dual 4 ohm sub = 8 ohm
4
Parallel wiring a dual 2 ohm sub = 1 ohm
Parallel-Parallel wiring two dual 2 ohm subs = 1/2 ohm Series-Parallel wiring two dual 2 ohm subs = 2 ohm
NOTE: Never connect only one coil of a Dual Voice Coil (DVC) speaker.
BOTH voice coils must be connected to the amplifier
DUAL VOICE COIL WIRING
(DUAL 2 OHM)
PARALLEL SERIES
SERIES PARALLEL
PARALLEL-PARALLEL
Series wiring a dual 2 ohm sub = 4 ohm
5
TIPS TO GET THE MOST OUT OF YOUR
IMAGE DYNAMICS SHALLOW WOOFER
Your Image Dynamics subwoofer has been meticulously engineered and designed to
handle high power musical reproduction. Despite their rugged construction, it is possible
to damage your speaker if they are improperly used. In general, you will hear distortion
as a so-called warning before any damage occurs. If you hear distortion in your system,
immediately reduce the musical level to the point where the sound retains its clarity.
1. All Imaage Dynamics subwoofers require an initial break-in period before
it will reach optimum performance. Like any new precision machinery, allow a
minimum of several days to one week with normal daily usage to ensure that
the suspension has properly been broken-in.
2. Be sure you supply the speakers with enough unclipped amplifier power to
drive them properly. (More damage can be done to a speaker by
under-powering and clipping your amplifier than any other way!)
3. Where possible, run your Speakers in mono instead of stereo. Most bass is
reproduced in mono so there is less chance of any cancellation if played
in mono.
4. Where possible, wire your Speakers in parallel instead of series. Bass is
reproduced either way but again there is less chance of cancellation in parallel.
NOTE: Be sure the amplifier you are using is stable to the resulting impedance
of the speaker load!
5. Where possible, a separate amplifier just for your subwoofers should be
used with an electronic crossover to set the frequency range. One amplifier
with passive crossovers will work (Tri-Way Setup), but the system will do more
with less stress on the amplifier by using two amps.
6. Do not block the front of your speakers. You want as much direct air coupling
as possible.
6
7
BOX CONSTRUCTION
The material used for enclosure walls should be solid, dense and free of voids or warps.
Your enclosure should be made ¾” or 19mm material, Finland or Baltic birch type
plywood is recommended where the enclosure will be transported frequently.
High-density fiberboard - MDF (not chip board) can be used on permanently installed
systems. Minimum of 1” (25mm) or double ¾” (1-1/2”) baffle is recommended on high-
powered SPL applications.
Corners must be strong and air tight and should not have any air leaks or openings.
Joints should be properly filled with glue that will not crack under high stress or impact.
If the integrity of the glue seal can’t be determined, hot glue or RTV caulking should be
used to seal all seams.
Fiber reinforced resin may also be used to form any difficult shapes. However avoid
making large panels with resin to eliminate any chances of box flexing, cracking or
ratting under high pressure.
Bracing made of 2 x 2” or 2 x 4” should be liberally applied either inside or outside the
cabinet, depending on whether the cabinet is to be permanently installed or portable.
This principle applies to any walls of the enclosure spanning more than 18” long. Any
braces should also be liberally glued or screwed down on edge. Edge-wise drilled, and
countersunk holes through the braces can be used for #10-2 Flathead wood screws to
avoid the use of more expensive lag bolts.
The majority of strength from an enclosure comes from the glue. When using screws be
sure to pre-drill holes to avoid splitting the wood.
WARNING! The use of silicone rubber to seal in a speaker will void the Warranty! If any
sealing is needed in addition to the speaker’s gasket, use caulking cord or vinyl weather
strip.
SUBWOOFER CROSSOVER SETTING
Your Image Dynamics subwoofers will perform best if they are used in conjuction with
a subwoofer crossover of some kind. Using a crossover will remove unwanted high
frequencies and allow them to concentrate only on bass.
The two most common types of crossovers are "passive" or "active" (electronic
crossovers are active). Many amplifiers have a built in Low Pass (LPF) electronic
crossover circuit. For optimum subwoofer performance we recommend an initial
electronic crossover setting between 50-100Hz and then tuning the bass to your liking.
PARAMETERS FOR IDQ SHALLOW SERIES WOOFERS
(Due to Constant Improvements, Specifications and Parameters are subject to change without notice.)
IDQS8D2 IDQS8D4 IDQS10D2 IDQS10D4
VC Impedance (ohms) 2Ω+ 2Ω4Ω+ 4Ω2Ω+ 2Ω4Ω+ 4Ω
Test Impedance (ohms) 1Ω2Ω1Ω2Ω
Driver Displacement 0.03 0.03 0.054 0.054
Fs (Hz) 53 53 50 50
SD (sqCM) 213.82 213.82 390.57 390.57
Vas (Ltr) 6.406 5.379 15.641 14.239
Cms (M/N) 98.67 82.862 72.203 65.736
Mms (g) 92.033 95.378 154.402 159.759
BL™ 5.109 5.999 6.526 8.777
Qms 3.607 4.896 6.764 6.233
Qes 1.346 1.631 1.118 1.216
Qts 0.98 1.223 0.961 1.017
No (%) 0.0683% 0.0473% 0.169% 0.141%
Spl (dB) 82 82 84 84
Xmax (mm) 7mm 7mm 7.5mm 7.5mm
Voice Coil Size (inches) 1.5 1.5 2.0 2.0
Voice Coil Height mm (inch) 22 (0.87") 22 (0.87") 25 (0.98") 25 (0.98")
Voice Coil Type / Former Kappton Kappton Kappton Kappton
Voice Coil Wire Copper Copper Copper Copper
DC Resistance (Ohms) 1.15 1.73 1.03 1.9
Voice Coil Induct @ 1 kHz (MH) 0.37 0.32 0.43 0.34
Frequency Response (Hz) 50-500Hz 50-500Hz 50-500Hz 50-500Hz
Resonant Freq. Fs Hz 53 53 50 50
HE-Magnetic Gap Height mm (inch) 8 (0.314") 8 (0.314") 10 (0.393") 10 (0.393")
Motor Structure (ounces) 21.69 oz 21.69 oz 42.95 oz 42.95 oz
Mounting Depth mm (inch) 79 (3.11") 79 (3.11") 89 (3.5") 89 (3.5")
Mounting Cutout Diameter mm (inch) 182.4 (7.18") 182.4 (7.18") 243 (9.56") 243 (9.56")
Net Weight Kg (Oz) 613.8 (21.69) 613.8 (21.69) 1215.5 (42.95) 1215.5 (42.95)
Power (Rec. RMS/Max RMS) 125/250 watts 125/250 watts 200/350 watts 200/350 watts
* Please note specifications are tested with coils in parallel configuration
9
PARAMETERS FOR IDQ SHALLOW SERIES WOOFERS
(Due to Constant Improvements, Specifications and Parameters are subject to change without notice.)
IDQS12D2 IDQS12D4
VC Impedance (ohms) 2Ω+ 2Ω4Ω+ 4Ω
Test Impedance (ohms) 1Ω2Ω
Driver Displacement 0.089 0.089
Fs (Hz) 45 45
SD (sqCM) 522.79 522.79
Vas (Ltr) 25.111 22.401
Cms (M/N) 64.703 59.462
Mms (g) 189.687 192.44
BL™ 7.847 10.519
Qms 7.11 7.165
Qes 0.914 0.971
Qts 0.81 0.859
No (%) 0.241% 0.203%
Spl (dB) 86 86
Xmax (mm) 7.5mm 7.5mm
Voice Coil Size (inches) 2.0 2.0
Voice Coil Height mm (inch) 25 (0.98") 25 (0.98")
Voice Coil Type / Former Kappton Kappton
Voice Coil Wire Copper Copper
DC Resistance (Ohms) 1.04 1.92
Voice Coil Induct @ 1 kHz (MH) 0.43 0.34
Frequency Response (Hz) 45-500Hz 45-500Hz
Resonant Freq. Fs Hz 45 45
HE-Magnetic Gap Height mm (inch) 10 (0.393") 10 (0.393")
Motor Structure (ounces) 62.04 oz 62.04 oz
Mounting Depth mm (inch) 89 (3.5") 89 (3.5")
Mounting Cutout Diameter mm (inch) 276 (10.86") 276 (10.86")
Net Weight Kg (Oz) 1755.6 (62.04) 1755.6 (62.04)
Power (Rec. RMS/Max RMS) 250/450 watts 250/450 watts
* Please note specifications are tested with coils in parallel configuration
RECOMMENDED ENCLOSURES
Please note that these enclosure volume recommendations are for the internal airspace in-
side the enclosure and include the displacement of the subwoofer and ports. When choos-
ing your enclosure type, please pay close attention to your specific woofer, failing to use
the correct enclosure may result in lower power handling and poor sound quality. To cal-
culate the internal airspace required, take the internal dimensions of the box. First mul-
tiple these number by themselves and then divide this sum by 1728. (W x H x D) / 1728.
Please contact your authorized Image Dynamics dealer for other designs and specifica-
tions. (Even though these subwoofers can be used in a ported enclosure, Image Dynamics
recommends a sealed enclosure for optimum performance and sound quality)
IDQS8
Optimum Sealed Vol Standard Metric
Gross Vb Internal 0.3 cu.ft 9.4 Liters
F3 (-3dB Cutoff) 53.04 Hz 53.04 Hz
Qtc 1.096 1.096
Pe (Watts-RMS) 125 Watts 125 Watts
Acceptable Volumes (0.3 - 0.5 cu. ft) (8.5 - 14.15 Liters)
IDQS10
Optimum Sealed Vol Standard Metric
Gross Vb Internal 0.5 cu.ft 14.2 Liters
F3 (-3dB Cutoff) 53.56 Hz 53.56 Hz
Qtc 1.052 1.052
Pe (Watts-RMS) 200 Watts 200 Watts
Acceptable Volumes (0.4 - 0.75 cu. ft) (11.32 - 21.24 Liters)
IDQS12
Optimum Sealed Vol Standard Metric
Gross Vb Internal 0.75 cu.ft 21.2 Liters
F3 (-3dB Cutoff) 54.93 Hz 54.93 Hz
Qtc 0.942 0.942
Pe (Watts-RMS) 250 Watts 250 Watts
Acceptable Volumes (0.65 - 1.25 cu. ft) (18.4 - 35.4 Liters)
Image Dynamics
LIMITED WARRANTY POLICY
Image Dynamics USA, Inc. offers limited warranty on Image Dynamics products under normal use on
the following terms:
Image Dynamics Speakers are to be free of defects in material and workmanship for a period of one
(1) year.
This warranty applies only to Image Dynamics products sold to consumers by Authorized Image Dy-
namics Dealers in the United States of America. Products purchased by consumers from a Image
Dynamics dealer in another country are covered only by that country’s Distributor and not by Image
Dynamics USA.
This warranty covers only the original purchaser of Image Dynamics product. In order to receive ser-
vice, the purchaser must provide Image Dynamics with the receipt stating the consumer name, dealer,
product and date of purchase.
Products found to be defective during the warranty period will be repaired or replaced (with a product
deemed to be equivalent) at Image Dynamics’s discretion and will not be liable for incidental or con-
sequential damages. Image Dynamics will not warranty this product under the following situations:
•Speakersreceivedwithbentframesorwaterdamage
•Abusesuchasholesinthecone,surroundorrippedspider
•Voicecoildamageduetoamplierclippingordistortion
•Productthathasnotbeeninstalledaccordingtothisownersmanual
Any implied warranties including warranties of fitness for use and merchantability are limited in dura-
tion to the period of the express warranty set forth above. Some states do not allow limitations on the
length of an implied warranty, so this limitation may not apply. No person is authorized to assume for
Image Dynamics any other liability in connection with the sale of this product.
Please call (909) 930-1377 for Image Dynamics Customer Service. You must obtain an RA# (Return Au-
thorization Number) to return any product to Image Dynamics. The RA number must be prominently
marked on the outside of the shipping carton or the delivery will be refused. Please pack your return
carefully; we are not responsible for items damaged in shipping. Return the defective product along
with a copy of the original dated retail sales receipt, plus $12.00 for handling and diagnostic evalua-
tion to:
ImageDynamicsUSA,Inc.,
Attn:Returns(RA#__________)
2133S.GreenPrivadoOntario,CA91761
Residents of HI, AK and US territories will be charged for return shipping. All inquires regarding ser-
vice and warranty should be sent to the above address.
Removedoralteredserialnumberswillvoidthiswarranty
This manual is the exclusive property of Image Dynamics USA, Inc. Any reproduction of this manual, or use other than its inten-
tions is strictly prohibited without the express consent of Image Dynamics USA, Inc. Copyright 2016 Image Dynamics USA, Inc.
Image Dynamics USA
2133 S. Green Privado – Ontario, CA 91761
Tel. (909) 930-1377 – Fax (866) 239-4399
www.imagedynamicsusa.net
This manual suits for next models
6
Table of contents
Other Image Dynamics USA Subwoofer manuals
