Velodyne DD18BG Powered Servo Subwoofer 1250 watts 18"

This listing is for an 18" one owner Velodyne DD-18 BG powered servo sub in Piano Black.

The DD-18 has a closed-loop, accelerometer-based, servo-controlled
drive-unit—an 18" dual-coil woofer with a linear excursion of 1.25"
peak-peak—a built-in electronic crossover and amplifier (1250W RMS,
class-D, in this case), balanced and single-ended line-level inputs,
selectable phase and volume controls, an onboard eight-band digital
graphic/parametric equalizer, thermal protection, remote control on/off
and volume presets, signal-sensing and polarity-inverting circuitry, and
a low-line-voltage power cutoff. The DD-18 also has a limiter to
prevent its amplifier from overloading. This operates in the digital
domain, allowing it to track any signal, to play loud without overload,
and to instantly reduce the gain if there's a massive input signal.

The DD-18 differs from the HG-18 in such subtle externals as its shinier
cabinet with more rounded edges. The most evident difference is the
increase in price, from $3499 to $4999, said to cover the DD-18's
room-calibration system, a more sophisticated remote control, a
precision calibration microphone, user interface software, and two years
of research and development. The subwoofer is supplied with a
microphone and stand, a 25' mike cable, and a 25' audio/video
signal-generator interconnect.

To calibrate the DD-18 in the user's room, the subwoofer generates a
swept tone that is detected by the microphone. The mike "listens" to the
sub's output only at the specific frequency of the sweep generator's
tone, this allowing it minimize the effects of room modes. The DD-18's
software displays the sub's in-room response, from 20 to 200Hz, on a
conventional TV set, along with the owner's adjustments to subwoofer
equalization, phase, and crossovers in real time.

Technology


The DD-18's nearly cubical enclosure, made in China, measures almost 2'
on a side and weighs 123 lbs. The cabinet is made of ¾"-thick MDF, and
the unoccupied internal volume is just under three cubic feet. Internal
bracing, silicon latex caulking, and corner blocks are added after the
enclosure is sealed with epoxy to prevent air leaks, which weaken
acoustic output. The DD-18 sits on four acoustically isolated feet of ¼"
milled aluminum.

All electronics and connections are made to the rear service panel, on
which are mounted the computer, crossover, switching amplifier,
speaker-level inputs, and RS-232 data connections. One XLR connector
receives the balanced LFE signal from the user's processor, while
another accepts the microphone connector. There are eight line-level RCA
jacks: a stereo input pair, an output pair, a "through" signal pair for
a second daisy-chained subwoofer, and the EQ output pair from the
signal generator. The controls that once appeared on the HG-18's rear
panel now appear only on the DD-18's remote control.

Includes the room correction setup mic and cables, ships in a non original sub-woofer box

Orig msrp was $4999.00.  

Offered for $2099 w free domestic fedex ground insured shipping, or freight if needed for a slight up-charge.

Guaranteed to be as described. 

In stock and ships next day, underrated at an 8!

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Revised shipping policy as of September 20, 2017.

Due to items lost or damaged in shipping, any item over $50.00 in 

cost will require delivery confirmation and insurance for the sale 

amount. It is unfortunate that this is necessary but experience has 

proven it is well worth the small extra cost. We apologize for this, but 

it is for the good of all involved.

TERMS: 

All listings are plus shipping unless noted. 7.00% sales tax added 

to all In-state destinations. This unit is guaranteed to be in "as 

described" working condition (unless otherwise noted) upon arrival and 

has a 60 day limited warranty, baring any abuse. 15% restocking fee on 

all returns unless defective or "not as described"

SHIPPING: 

We ship internationally on smaller items . Domestic packages are 

shipped via Fed Ex. All international shipping quotes will include 

insurance and delivery confirmation. Shipping charges reflect actual 

cost of shipping, plus a nominal fee for packaging materials.

INSURANCE: 

International shipments to countries that do not allow insurance, 

buyer assumes FULL RESPONSIBILITY for the safe shipment of their 

packages. Sound Ideas cannot provide refunds or compensation for 

packages shipped without shipping insurance. All shipping quotes for 

packages shipped includes insurance.

RETURNS: 

Any item may be returned within 15 days for a full refund of the 

purchase price, not including shipping, unless otherwise stated in the 

ad. It must arrive back at our store in the same condition as 

sent. 15% restocking fee on new items that were opened.

International purchases need to be returned with incoming custom's 

duty prepaid, if any. Any postage or import duty that is due upon 

arrival will be deducted from the refund. 15% restocking fee also on all 

returns unless defective or "not as described."

Thank-you for your time and interest!  Under rated at an 8