UMII-18 requires a custom woofer cutout in all our 18" cabs. Please contact us if you intend to use this woofer!
BTS Finished Ported 21 72

BTS Finished Ported 21 72" x 28" x 17", Flat Shipping $199

Regular price $7,598.00 $3,799.00 Sale

Note: Performance of the MDF cabs is the same as the Baltic Birch.

ATTENTION:

Shipping is now automatically calculated in the shopping cart for drivers, amplifiers, and single pallet orders to residential addresses in the USA. 

All GSG flat packs ARE AVAILABLE for local pickup. No freight charges!

FULLY ASSEMBLED

TECHNICAL SPECIFICATIONS

Line-up:

Behind the Screen "BTS"

Model:

FDP72x28x17

Design:

GSG fully-interlocking brace design (patent pending)
recessed driver, and accommodation for both terminal cup and Speakon connections. 
Bass-reflex (aka front-ported)

Tuning:

16Hz

Finish:

2-part polyurea

Hardware:

All hardware included

Output:

>127dB @ 70Hz (single; +6dB for duals)
>120dB @ 18Hz (single; +6dB for duals)

Rec. Driver:

21” pro-audio driver (SAN214.50, NSW6021-6) 

Rec. Power:

1,000-5,000 watts+ depending on amp/driver combination

Dimensions:

72.0” high x 28.0" wide x 17.0” deep

Weight:

Approx. 200 lbs. each flat pack; total shipping weight including packing and pallet approximately 235 lbs.

Warranty:

1 Year limited warranty against manufacturing and material defects.  Customer is responsible for return shipping and restocking fee.

Protective High Pass

High Pass Filter (all drivers):
12dB / octave Butterworth @16-20Hz

Rec. EQ:

Parametric EQ 21” pro-audio driver: 
Freq=20Hz, Q=0.7, Gain=+9dB

Phase:
180 deg (NX and iNuke amps)