CoDrive™ Products
The CoDrive low frequency system___________________________
Here is our low profile CB 1.2 front firing powered sub, designed for corner placement, and shown with our SP1 and SP2 outboard x-over/processors. A compact powerhouse, it's just 16" tall and uses less than 2.6 square ft of floor space. As a single, in pairs, or stacked arrays, they take advantage of room boundaries for maximum low frequency output. Each sub has a 1000W RMS digital amplifier (mounted on our distinctive "porcupine" heatsink) to provide an extraordinary amount of punch and plenty of headroom. For ease of adjustment, the x-over/processor is designed to be placed with the rest of your audio gear. No more kneeling with a flashlight while you tweak your subwoofer controls! A grill cloth is provided should you wish to cover the CoDriver™. If your room is large or you desire even more low frequency output, the enclosures can be daisy chained by using the thru connectors.
A stereo pair of CB 1.2's are supplied with the amp heatsinks on the left front face (as shown above) and the right front face. If you would prefer to have the electrical connections hidden in your installation, the CB1.2's can be ordered with the amp heatsink on the rear face of the enclosure. Each CB 1.2 is shipped with an XLR cable (25 ft) for connection to the processor and a heavy duty 14 Ga. (8 ft) power cord. The electrical requirements are 90-270 VAC 1100 (max) Watts @ 50/60 Hz.
CB 1.2 enclosures have 5/16-18 threaded t-nuts factory installed on both the top and bottom to accept our rubber feet and stacking adapters or facilitate the connection of flight hardware. The user can easily replace the supplied rubber feet with carpet spikes or other vibration isolating devices if so desired.
The CoDriver™________________________
"It's all about the driver". CoDrive technology is unique in the industry. The Compound Driver double cone topology (US Pat.# 6,466,676) and dual coil NeoSym™ motor (U.S. Pat.# 6,778,677) make an extremely robust subwoofer driver that is built to provide years of flawless performance in the most demanding pro and home applications. Our patented technology makes it possible to have a sub with extraordinary low frequency extension that can still be crossed over in the upper-bass. Say goodbye to "slow" subwoofer response, this high tech wonder will pair beautifully with large main speakers, PA speakers, small satellites or near field monitors, and even the most difficult applications such as electrostatic panels, Manger drivers, line arrays, 6 foot ribbons, and other systems that don't use woofers.
To find out more about CoDrivers click on the link
The X-over____________________
SP2 (sub processor, 2 channel) 17" W x 7" D x 1.75" H
The SP2 is our dual channel active 2nd order state variable x-over with lo-pass and hi-pass functions. This is the best type of x-over for use in a music system because each channel's outputs (both low & high) are in phase at the selected x-over frequency (the -3dB point). The low pass has an initial 12 dB/oct slope with an added 24 dB/oct filter above 180 Hz. This two stage lo-pass filter gives a smooth transition at the selected crossover frequency and does a better job of removing any undesirable high frequencies from the subwoofer than a typical 4th order subwoofer filter.
The input jacks are Neutrik combo connecters. They will accept XLR, balanced TRS, or a 1/4" mono plug. We supply an adapter for RCA cables. There is an input gain control with LED metering so you can accurately adjust the process level. The lo-pass output is an XLR connector and we supply a pair of 25 ft balanced cables for connection to the left and right CB1.2's. There is both an XLR and an RCA jack for the high pass output of each channel. This is to be connected to the in jacks of your main speaker amp. Both high and low pass outputs have level controls, making it easy to match the main and sub levels. A subwoofer EQ control is provided to give you +/- 6dB of "tilt" @ 20 Hz for room tuning, and a pushbutton is provided for subwoofer phasing.
X-over frequencies are set by a rotary switch that selects among a bank of 1% resisters in the crossover circuit, which is far more accurate than the typical ganged 10% potentiometer "adjustable range" knob found on most subwoofers. After much experimentation, measurements, and listening tests, we have determined that the default step between frequencies should be 1/3 octave, which yields settings of 50, 63, 80, 100, 125, and 160 Hz in the SP2. For a special application we can provide any six frequencies between 40-180 Hz in a new system or as an aftermarket retrofit, however we strongly recommend that the standard frequencies will do the job perfectly 99% of the time.
SP1 (sub processor, 1 channel) 8.5" W x 7" D x 1.75" H
The SP1 is also an active x-over/processor with all of the features of the SP2 except it is a single channel lo-pass only unit intended for connection to the subwoofer (summed signal) jack of a home theater receiver. The standard SP1 x-over frequencies are 40, 50, 63, 80,100, and 125Hz.
The amplifier__________________________
The criteria for our subwoofer amp is demanding. It had to have low distortion and provide excellent sound quality at all listening levels. Since our systems are intended for pro users as well as home installs, reliability is crucial because when pro systems are down, someone is losing money. It had to have plenty of reserve power so that musical peaks sound like they are supposed to. It had to be physically small because our amp is in a separate space from the interior of the enclosure that the driver is in. Finally, it had to be power efficient, because we did not want an excessive amount of heat requiring a large area of ugly cooling fins or a noisy fan. Some generic offshore sourced plate amp (there are plenty of them available) was not going to cut it in our flagship product. After a long search we discovered an American designed and manufactured amplifier that met our stringent requirements. A true continuous 1000 W rms, 3000 W peak class D amp with less than .04% distortion and power efficiency of 96% fit the bill nicely. Input power requirements of 90-270 VAC 50/60 Hz (1100 W max) make this a true world class amplifier. Of course it's expensive, but you get what you pay for, and nothing less than the best is suitable for a product at this quality level. An amp this good deserves special packaging, so (in true CoDrive fashion) we tooled our own distinctive cast aluminum "porcupine" heatsink. Connection to the SP series x-over is handled by a 3 conductor XLR cable. There is a "thru" jack so multiple CB 1.2's can be controlled by a single x-over. Besides a power switch, the only function control on the amplifier is an attenuation potentiometer, which provides a way of adjusting relative volumes when two or more CB 1.2's are connected together. Four LED's indicate power on, presence of signal, amp clipping, and thermal overload. In the rare instance (it has not happened in our testing) that the latter should occur, the amp will automatically shut down. Cycling the power switch resets the circuit.
The specs:
The following system response curves are near-field measurements taken outdoors (½ space)
½ space system response @ 50 Hz x-over setting
½ space system response @ 80 Hz x-over setting
Pair (2) CoDrive CB 1.2 powered subs with SP2 x-over/processor and cables $5999 USD
Single (1) CoDrive CB 1.2 powered sub with SP1 x-over/processor and cable $2999 USD
shipping dimensions: 25" W x 25" L x 23" H
shipping weight (per each) 90 lb.
For orders and info please call 978-887-8899 (Mon-Fri 9am-4pm EST)
We accept Visa, M/C, and American Express
