Introducing our new GR Research custom install products
We are proud to introduce new CI subwoofers based around GR Research 12" paper cone drivers. Three different versions of the GR Research driver cater to different applications. In these subwoofers we now offer the only servo subwoofers on the market for infinite baffle and dipole applications.
3 versions are available:
standard,
dual driver,
Infinite
baffle/dipole (on different web page)
There are many benefits to a custom subwoofer product. For those concerned with spouse acceptance factor, often a subwoofer is best felt and heard but not seen. For others, a subwoofer should match the interior of your home. Either way, our CI series products are the ideal choice. Have it built by a local trusted furniture maker, or if you are handy, you may choose to built it yourself.
Which product is right for you?
The paper cone drivers used in these subwoofers have a very smooth, flat and extended frequency response. As a result they are suitable for a higher crossover point, up to the 120 Hz. Please note that when crossing higher than 90 Hz, we recommend stereo subwoofers.To determine which product is best for you, please view our product selection guide.
Your choice of enclosure
Direct Servo technology can be applied to any enclosure type - it is not limited to sealed boxes. If you would like to use an enclosure other than sealed or vented, we can design a custom servo board to ensure you receive all the benefits the technology allows. Contact us if you would like to create something different.
Subwoofers for audiophiles
For audiophiles looking for uncompromising accuracy, our subwoofers are the ultimate choice. They feature our Direct Servo technology to ensure accuracy and definition. We don't merely design low distortion subwoofers. We are concerned with eliminating the problems which most degrade the accuracy of a subwoofer. Problems like memory effects which are clearly audible are dramatically reduced. Perhaps you already own a subwoofer but have been disappointed to discover that it added more than extra depth. Or perhaps you have avoided purchasing a subwoofer because you were unwilling to compromise the accuracy of your system. Rest assured that you have found a subwoofer for audiophiles.
Better technology
Nearly all subwoofers on the market are based on outdated technology. Our subwoofers are based on our patented Direct Servo technology. Not only does our technology surpass that of conventional subwoofers, it also offers significant improvement to the performance of other servo systems. In our technology section, we describe the differences between Direct Servo and other servo technologies. Our system is better suited to music reproduction than other servo systems.
Amplifier options
DS1204 comes with foam gasket installed already. This gasket is concealed under the driver outside mounting rim and enables an air tight seal to be achieved. An additional rubber gasket is available which fits around the rim. We do not provide this additional rubber gasket unless requested, because we don't recommend that you use it unless it is used for cosmetic reasons. We also have 3 amplifier options:A370PEQ3, A370XLR2, and A370XLR3. A370XLR2 has one XLR input and one XLR output. The XLR output can be either used as master slave signal transmission, or for HPF output of the XLR inputs. A370XLR3 has two XLR inputs. Both XLR models have one band defeatable PEQ, 12V trigger input, and separate limiter ON/OFF switch.
Documentation:
A370PEQ Quickguide
A370PEQ3 Quickguide
A370XLR2 Quickguide
A370XLR3 Quickguide
Integration guide
Ordering details
Single driver CI with A370 amplifier
| GR SW12-4 (for 1.6 to 1.8 cu ft sealed enclosure) | Price | ||
| GR SW-12-4ohm (12-24 dB/octave) and A370PEQ amplifier with HPF out | $769 |  |
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| GR SW-12-4ohm (12-24 dB/octave) and A370PEQ3 amplifier with LFE in | $799 | |
Single driver CI with HX310PEQ amplifier
We now offer HX310PEQ 300WRMS Hypex-module-based amplifiers for GR SW12-4 drivers. HX310PEQ has RCA inputs only. When pairing SW12-04 with HX310PEQ-12S, customers can also increase enclosure size up to 2.0 cu ft to fully utilize the excursion capability of SW12-4 as the power per driver with HX310PEQ amps is slightly smaller than that of A370 series amplifiers.
Documentation:
| Description: Compact HX310-12S amp (with 3 RCA inputs) | Price | ||
| SW12-4 sealed up to 2.0 cu ft with HX310PEQ-12S servo amp | $599 | |
Dual drivers for sealed enclosures
With HX800XLR3 amplifier, one can drive two drivers with one single amp. It has two Hypex 400WRMS power amplifier modules in one heat sink so that each module independently drives one driver with servo control. The quickguide of the HX800XLR3 amplifier for sealed subs can be found here.
| Description: two drivers with HX800XLR3 (sealed configuration) | Price | ||
| Dual driver kit with two SW12-4 drivers and one HX800XLR3 amplifier | $1050 | |
Amplifiers only purchase
Amplifiers can also be purchased separately. XLR2 and XLR3 amps are $20 extra. Our amplifiers only with drivers from us and GR.
| Servo amplifiers for GR SW 12-4 drivers (sealed configuration) | Price | ||
| A370PEQ-S2 Servo amplifier for GR 12-4 (with HPF RCA outputs) | $619 | |
|
| A370XLR2-S2 Servo amplifier for GR 12-4 (with one XLR in and one XLR out) | $619 | |
|
| A370XLR3-S2 Servo amplifier for GR 12-4 (with two XLR ins) | $619 | |
| Servo amplifiers for dual GR SW12-4 drivers (sealed configuration) | Price | ||
|
HX800XLR3-S2 Servo amplifier for dual GR SW12-4 drivers |
$750 | |
The above products and custom enclosures can also be purchased from GR Research.