ABN 30 089 519 351 

  Ballarat Sound Group

At Alderwood we pride ourselves on producing the highest quality audio experience. All of our products are hand crafted in Cobden, Victoria using the highest quality instrument grade birch timber.

Developed over many years by one of Australia’s leading acoustic engineers, they are the most powerful cube speakers for their size in the world thanks to our proprietary technologies.

Incorporating cutting edge Constant Throw Technology which provides unparalleled vocal realism and projection allowing a small speaker to more evenly cover large areas and maintain even sound levels using less speakers even at the back of large venues.

Our speakers and subwoofers can produce a constant, seamless and undistorted sound at high volumes all while maintaining a discreet presence due to their size.

High-End Audio at its finest.

Eros Pro Cube


The new Eros PRO passive satellite speaker proudly designed and manufactured in Australia.

Boasting more than double the power handling and output of the original Eros. The worlds most powerful speaker for it’s size. Setting new standards in clarity, detail and speed.

Achieved through a new ultra lightweight alloy diaphragm with a moving mass of only 1.2 grams combined with an enclosure finely tuned to control and support driver excursion, allowing the high power magnet assembly to always have full control of the voice coil motion, resulting in servo-like precision at loud output levels.

The unique cone profile has extremely accurate response both on and off axis allowing the Eros PRO to efficiently fill large areas with sound. The surface area of the diaphragm has been sized to the frequency ranges to be reproduced for a balanced and even projection of sound in both near field and far-field listening environments.

Measuring 7x7x7cm and weighing only 285 grams, included is an architecturally designed brass ball mount bracket that allows for easy single fixture mounting with every an​gle possible due to its unique design.

A finely tuned instrument designed from the ground up for absolute accuracy in vocal and instrument reproduction, yet designed to withstand the harsh conditions demanded of commercial usage.

-floating driver mounting system keeps the driver isolated from the enclosure for reduced harmonic distortion.

-high efficiency thermal management systems transfer heat from the inside of the cabient to the grill for rapid heat dissipation when used in hot environments or in direct sun exposure, the secondary heat management system moves air directly from the voice coil to the outside of the cabinet during situations of being overdriven. 

-Our simple heritage friendly single fixture mounting system allows for fast and permanent mounting, machined from solid brass billet with a staggering 180 degree range from the mounting surface, ensures you can always get the sound onto the audience. Easily adjusted and reusable should needs change.

-8 ohm resistance can support cable runs of up to 70 meters, and 2 units can be run in parallel off a single amplifier channel.

-no EQ or processors required to run the speakers for vocal or live sound usage, for high output requirements use basic highpass filters and some signal compression for best results.

-Built in DC blocking circuit protects the speaker from pops and bangs, or old aging amplifiers with a DC current leak.

-Wide off axis response and almost invisible baffle outperforms traditional speakers in efficiently covering large areas with decibel accuracy

-Designed for constant throw, which means, bass, midrange and treble fall off at the same rate together maintaining tonal balance in the near field and far field.


-Impedance 8 Ohms

-50 watts rms power handling

-Sensitivity 88db

-Frequency range 150-20,000hz

-Dimensions 7x7x7cm

-Weight 285g (450g including Bracket)

-Beamwidth 170 degrees

-Input connector Phoenix Contact 3.81mm

-Available in IP63 only

-Operating temperature -18 - 42 deg C

-Peak output full range 106db

-Peak output with highpass 110db*

* white noise 200hz highpass on a 24db oct slope. Recommended settings for maximum volume usage. More bandwidth can be used for lower volume needs.

sold as individual units.

requires wired connection to amplifier with a power range of 25-100watts per channel

ATLAS PRO - active subwoofer


A high efficiency dual 8 inch, active subwoofer, big on output yet ultra lightweight

featuring our symmetrical porting system, one of Alderwoods biggest breakthroughs in low frequency efficiency. which has a number of benefits over traditional ported cabinet design.

-high velocity airflow without the port turbulence. Allowing us to shrink the cabinet size without comprising performance.

-symmetrical cone damping allows for linear voice coil motion. For servo like precision at high output levels.

-double the wall thickness for extra rigidity without loosing valuable internal air volume.

-passive directional bass, up to a -4db reduction in rear bass radiation, without the use of any dsp or extra drivers. Providing less wall vibrations when used in cinemas and less feedback issues for live sound applications.

A wide range of user adjustable features are available through our simple LCD screen interface.

Such as built in adjustable delay allowing for quick time alignment to other speakers. Pass through for connecting with more subwoofers or amplifiers, pass through function also has the added ability to set highpass/basscut filters at

different frequencies and different crossover slopes.

The subwoofer also allows you to adjust phase and crossover points to ensure you can match the subwoofer perfectly to the rest of your audio system.

(This active subwoofer does not power Eros cube speakers)

Not sure about what you need? Give us a call on 0419 097 092 to discuss your requirements.

Dimensions HWD  49cm x 29cm x 36.5cm

Weight 12kg

Input/Output Connection XLR x 2, RCA x 2

Frequency Range 32-500hz

Nominal Impedance


Sensitivity 1W/1M 97DB

Peak SPL 124DB

Beamwidth Cardioid -4db rear

Driver Dual long stroke 8 inch with 2inch copper voice coils

Power 500W

IP Rating IP54

Operating Temperature -18 – 42 degrees C

GEMINI - passive inwall subwoofer


A passive 10inch in-wall subwoofer.

Only requires a 100mm cavity to install, tuned to 25hz perfect for cinema use

This product can be easily mounted within your existing plaster walls with our cam-lock mechanism. All that is needed to install is a Phillips head screwdriver.

Delivering a class-leading 113DB output

(This passive subwoofer requires an additional subwoofer amplifier with a power of 500-1000w to drive to full potential)

The Gemini is only designed for wall mounting on flat vertical walls, under no circumstances is it to be used in roofs or installed above seating areas. For these applications we can provide custom solutions to directly install to roof studs get in touch to find out more. 

Dimensions 65cm x 36cm x 10cm

Weight 12.5kg

Connection Input: Phoenix Contact 3.81mm

Frequency Range (-3DB) 25 – 300Hz

Nominal Impedance 8 Ohms

Sensitivity 1W/1M 85DB

Peak SPL 113DB

Beamwidth -

Driver Long stroke 10inch with 3inch copper voice coil

Power 350W

IP Rating IP63

Operating Temperature -18 – 42 degrees C

EROS PRO INWALL - passive 


The flush mount variant of our incredible Eros PRO cube speaker. Featuring the same high performance and technology as our on wall model but in a flush mount configuration for a more discreet look. Like all Alderwood products it is made using stainless steel fasteners and marine aluminium grill to resist salt mist or humid environments.

weighing only 300G its the perfect solution for mounting into lightweight ceiling tiles in false ceilings

Easy to install using a 95mm holesaw and simple to use camlock mechanism, able to grab up to 22mm thickness and only needing a minimum of 81mm depth to install into a wall or ceiling including wiring connections.


-Impedance 8 Ohms

-50 watts rms power handling

-Sensitivity 88db

-Frequency range 150-20,000hz

-Dimensions 10x10x7cm HWD

-Minimum depth required for mounting including connector 81mm

-Grab range 0-22mm

-Weight 300G

-Beamwidth 170 degrees

-Input connector Phoenix Contact 3.81mm

-Available in IP63 only

-Operating temperature -18 - 42 deg C

-Peak output full range 106db

-Peak output with highpass 110db*

CYCLOPS - passive slimline IP66 subwoofer


One of our most versatile passive subwoofers, incredible punch combined with a low frequency extension reaching right down to 25hz without any equalisation.

Designed for harsh environments including marine. IP66 rated when installed in a position that allows the grill to drain excess water. Like all of our products its made from the finest birch timber available.

Features 16 mounting points. Allowing for wall, roof, under seat or floor mounting. All this in a footprint that seems impossibly small for such a powerful subwoofer. Wherever you choose to mount the sub it can be used in either a surface loading configuration. Which boosts lower frequencies.

Or can be used with the driver facing outward for more punch.

Two Cyclops Subwoofers can be linked together in parallel to be run off a single amplifier channel for a 4 ohm load.


-34x34x12.5 cm

-350w rms

-sensitivity 85db

-frequency range 25-300hz


-76mm copper voice coil

-impedance 8 ohm

-280 gram neodymium magnet


-operating temperature -18 - 42 degrees C

-16 mounting points

(This passive subwoofer requires an additional subwoofer amplifier with a power of 500-1000w to drive to full potential)

POSEIDON - passive IP66 install speaker


The Alderwood Poseidon is a discreet satellite speaker designed for vocal clarity and detailed sound. Rated IP66 for harsh conditions, including salt water, marine alloy grill and stainless fasteners are used throughout.

Perfect for aboard your pleasure craft, or outdoor entertaining spaces.

Available in two versions.

1) billet machined alloy swivel mount

2) flush mount, designed for easy mounting directly into fibreglass vessels

The perfect companion for this product outdoors is the Cyclops Subwoofer.


Impedance 4 Ohms

20 watts rms power handling

Sensitivity 87db

Frequency range 150-20,000hz

Dimensions 7x7x7cm

Weight 250g

Beamwidth 150degrees

Input connector Phoenix Contact 3.81mm


Operating temperature -18 - 42 deg C

Peak output full range 99db

Peak output with highpass 103db*

*white noise 200hz highpass on a 24db oct slope

HYDRA - High performance passive installation speaker


The Alderwood Hydra for installations where high volume audiophile sound is required.

sold as a complete installation kit including

-2 Eros PRO speakers

-2 Brass ball mounts

-2 Eros PRO 3.81mm input connectors

-Hydra V Bracket 4 ohm mono input

-1/4 TS jack plug

This kit allows you to either install the Hydra as a mono high power point source or install the 2 Eros PRO cubes separately with everything needed provided in the box. Adding some flexibility should an install not go to plan

Available in heavy duty textured black, textured white, or our trademark satin clear timber finish

This power house of a product takes the Alderwood range into much larger venues without sacrificing any of the sound quality or detail Alderwood has become renowned for.

-low profile and architectural design blends in neatly across theatre stages as a front fill or for under balcony delay speakers. Only 7cm tall and 21cm wide it is unnoticeable compared with many traditional theatre speakers.

-Free floating Eros pro mounting system keeps the vibrations from the individual cabinets isolated for crystal clear scaleable performance. Whilst providing increased shock absorption should it be dropped.

-exceptional vocal clarity and coverage makes for a great low profile on stage monitor for artists that move across stage during performances. The smooth on and off axis frequency response helps to avoid feedback issues with microphones.

-can be used in conjunction with subwoofers for incredibly detailed, installed front of house PA systems

-perfect for high end audio upgrades in heritage buildings with speaker mounting restrictions. Weighing only 850grams when installed, can be mounted from existing lighting bars for an easy to install hidden PA system without the engineering headaches.

The unique design of our handcrafted timber bracket allows for the 2 Eros PRO speakers to work seamlessly together and provide double the power output over a single Eros PRO. All while providing a smooth off axis response with no processing required for exceptional transient response. Covering the 150-20,000hz range it is integrated the same way as an individual Eros PRO and can be used as a way of easily extending system headroom should venue requirements change.

Easily installed with supplied brass mounting system which which offers many mounting possibilities with the one bracket.

Speaker inputs are provided by a standard TS jack plug which is supplied ready to terminate. High sensitivity and wide off axis efficiency effectively cover large rooms easily, making this 4 ohm speaker very easy to drive from a wide variety of amplifiers. As a rule of thumb we recommend an amplifier with at least 200watts per channel for adequate amplifier headroom for commercial use.

Very little eq is generally required and will thrive in acoustically challenging rooms. The ultra lightweight diaphragm in the Eros PRO is capable of resolving many instruments simultaneously without blurring the sounds together to provide performances that your audience will never forget.

Exceptional projection from our constant throw diaphragm sizing, reaches out to 32 meters over an 180x120 degree dispersion (Horizontal x Vertical) 2 V brackets used outdoors with nothing to reflect from will be 90 decibels at a 32 meter distance. Falling off a rate of 6db each time that distance doubles. ie 84db @64 meters, 78 decibels @128 meters. Standard requirements for Sound pressure level is at least 6 decibels above background noise.

When used indoors or in a more enclosed space a natural boost from reverberant field provides a minimum gain of 6 decibels at distance effectively doubling the perceived volume level, in more reflective or untreated acoustic environments it is common to gain extremely high sound pressure accuracy over distance within 1-2 decibels venue variation with only a front of house install. Speaker placement and room layout will ultimately determine performance, installs in large rectangular rooms with speakers mounted high above the audience will net the best results.

not sure about what you need? Give us a call to discuss your requirements 0419 097 092


Impedance 4 Ohms

100 watts rms power handling

Sensitivity 91db

Frequency range 150-20,000hz

Dimensions 21x12x7cm WDH

Weight 700g (850g including Bracket)

Beamwidth 180x120 degrees H/V

Input connector: 1/4 TS Jack plug (supplied)

Available in IP63 only

Mounting system. Brass swivel mount (supplied)

Operating temperature -18 - 42 deg C

Peak output full range 110db

Peak output with highpass 114db*

*white noise 200hz highpass on a 24db oct slope recommended settings for maximum volume usage. More bandwidth can be used for lower volume needs.