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Delivery Charges
Freight Charges within Australia
Soundgear Australia will do their very best, to ensure your order arrives as quickly as possible. We use an integrated network of post and road companies like StarTrack, TNT, Go Logistics, and Australia Post to deliver Australia wide. We will do our best to ship as quick as possible.
Oversize Items:
- Oversize items or multiple items such as horns, speakers, sports packs, may also incur additional charges to those calculated at checkout. We will contact you with any additional charges.
GENERAL AUDIO (excludes Lecterns-see Lectern pricing below)
Price Range | Cost | Method |
Up to 25 | $15 | Express Post |
$26 to $300 | $25 | Post / Road |
$301 to $500 | $28 | Post / Road |
$501 to $1000 | $30 | Post / Road |
$1001 to $2500 | $45 |
Post / Road |
Oversize Items:
- Oversize items or multiple items such as horns, speakers, sports packs, may also incur additional charges to those calculated at checkout. We will contact you with any additional charges.
Freight charges to W.A /N.T/Far North QLD, Regional and Rural areas:
- Additional charges to those listed may apply.
- Please contact us for a quote.
- If you place an order and we can’t get it to you for the freight charged we will contact you and let you know of the additional charges.
Sending to Residential Addresses:
- For all residential deliveries an additional $27.50 Inc-GST may also be charged for certain brands (Mipro, Bosch, Earthworks, Alfatron, FBT, Antari).
- If we cannot express Post it and it needs to go with a courier service, the additional residential fee will apply.
- If you have placed an order online we will contact you if this additional charge applies. Please feel free to call us on 02 9585 8687 to check the freight charge.
Deliveries to residential address need an “ATL” (authority to leave goods)
- Please leave us a note at check out advising us of an “ATL” ie/porch, front door etc should you not be home to sign.
Price Range | Cost | Method Delivery times |
Zone A | $110 | Zone A Areas (Sydney, Melbourne, Canberra, Adelaide, Newcastle, Wollongong) |
Zone B | $242 | Country /Regional-All states, Perth, QLD -(excluding TAS /N.T) |
Zone C | Quote required for TAS /N.T | |
Note: | Zone A only calculated at checkout. All other zones will need to be charged separately. We will contact you to arrange this. |
**WE DO NOT SHIP OVERSEAS**

The QSC AD-C81Tw AcousticDesign Series of installation loudspeaker products from QSC expands with the new AD-C81Tw ceiling mount subwoofer system. Designed to supplement audio systems with low-frequency extension, the new AD-C81Tw is acoustically matched to the entire AD Series. Rated for 100 watts continuous power handling and able to take up to 400 watt peaks, the AD-C81Tw is a great compliment to any of the ceiling mount or surface mount AD Series models.
- 8-inch polypropylene cone woofer
- Large port area for extended low-frequency performance
- Defeatable passive 120 Hz low-pass filter with impedance compensation
- 100 watts continuous power handling, 400 watts peak
- 70/100 V multitap transformer with 8 ohm bypass
- C-ring and tile rails included
- Side cable entry
Package Includes:
- AD-C81Tw loudspeaker
- C-ring and tile rails
- Round grille (white, paintable)
- Paint mask
- Connector assembly
SPECIFICATIONS |
AD-C81Tw |
Configuration | Ceiling subwoofer, ported |
Low-frequency Transducer | 8-inch (20 cm) weather resistant, polypropylene cone woofer, rubber surround |
Frequency Range 1 Frequency Response (-6 dB) Useable Frequency Range (-10 dB) | 39 Hz to 184 Hz 28 Hz to 208 Hz |
Filter | 120 Hz low pass, passive, bypassable |
Maximum Output 2 Calculated Peak Output Calculated Continuous Output | 118 dB SPL 112 dB SPL |
Nominal Impedance | 8 ohms switchable |
Power Rating Continuous power handling3 Recommended amplifier power (loudspeakerprogram" power) | 100 W (100 hours IEC) 200 W |
Sensitivity | 92 dB, 2.83 V, 1 m, free space (4 pi) |
TRANSFORMERS |
|
Type | Custom low distortion laminated core, wide bandwidth design |
Taps (switch selected) | 70 V: 60, 30, 15, 7.5 W; 8Ω 100 V: 60, 30, 15 W; 8Ω |
Environmental | Exceeds Mil Spec 810 for humidity, salt spray and dust; IEC 60529 IP-X3 splash rating |
Agency Rating | Listed UL1480, UL2043 safe for use in air handling spaces; Transformer is Listed UL1876; Compliant BS/EN 60849 safety standards |
ENCLOSURE |
|
Material | Injection molded, high impact polystyrene baffle on a steel enclosure |
Finish | White (paintable) |
Grille | Painted aluminum |
Connectors | Ceramic block or 4-pin Euro terminals in fire protective sub-chamber |
Mounting Hardware | Rails and C-ring for ceiling tile installation |
Weight | 20 lb (9.1 kg) Net 28 lb (12.7 kg) Shipping |
Available Accessories | ADC-MRS Mud ring bracket • ADC-NCS New construction bracket |