Granite is one of the hardest, densest materials on the planet. We feel these qualities make it the best material for a speaker cabinet.
The major advantages are:
Extremely rigid baffle and enclosure. Most speaker enclosures are made of a more compliant material like wood or wood byproduct (particle board). As the individual drivers make sound by vibrating, pushing air – some of that energy is absorbed into the baffle. This causes a loss of dynamics and detail. Granite avoids this.
Most conventional speaker designs also require internal bracing to reduce the amount of noise the enclosure makes. Unfortunately, this adds additional reflections inside the enclosure, which affect all of the drivers in that enclosure that have an open basket (nearly all midrange and low frequency drivers) Granite does not need internal bracing, meaning a great reduction in these reflections smearing the sound coming from the lower frequency drivers
In addition to its elegant looks, granite also does not measurably swell or shrink with changes in humidity and temperature. Most speaker enclosures are susceptible to this.
Bottom line, the granite enclosure enables Acora Acoustics to present a speaker that offers a tremendous sound stage, imaging, dynamics and clarity.
I’ve heard granite can resonate or ring.
Granite as a speaker enclosure, does have a few challenges, however it has far more advantages. Fortunately, Acora’s CEO and Chief Designer is a 2nd generation Italian stone worker (Valerio Cora). His experience working with granite enables him to treat the granite to eliminate this potential drawback. Tapping, or knocking on an Acora loudspeaker will be like – well – like knocking on a rock.
Why only black / Are other colors available?
Different types of granite have differing densities, resonances and sonic characteristics. This particular style was chosen based on this. This black granite is denser / less resonant than other colors / styles.
Is there anything special about the drivers?
Each driver is selected for its role in that particular system. All Acora loudspeakers are designed to have the identical sound, but for different room sizes. Each driver is then modified to blend with the rest of the system, rather than adding additional components to the crossover. While they may appear to be the same as others, when implemented into our speakers, they are not.
Please provide details about the crossover.
The crossover in Acora loudspeakers are each hand built and tested in the Ontario factory. All components are of the highest quality including a proprietary solder composite, and a minimalist approach is used. All components are then sealed using our trade secret methods to insulate it from acoustic energy and vibration.
How can the SRC-1 be rated down to 29 Hz with a single 7" woofer?
The woofers in the SRC-1s have been shown images of 12- and 15-inch woofers since they were first manufactured. Like the little dog that thinks it’s a Great Dane – it just doesn’t know it shouldn’t go this low. Okay – serious answer, the diameter of the driver does not always relate to the bandwidth of that driver. Other factors such as cone weight and excursion as well as the flux density of the voice coil gap all play an important part as well. Since we don’t have to worry about the drivers losing energy to the granite baffle, we can tune them to reproduce these low frequencies.
Why, in this age of exotic cone materials (graphite, diamond, beryllium, etc.) did you opt for a paper cone for the woofer?
Each driver in the Acora system was chosen for its sound qualities – in the entire system design. Extensive listening tests were done on hundreds of drivers, these were chosen for their sound quality, tunability and reliability.
What's the internal wiring?
Acora Acoustics loudspeakers are internally wired with Premium OFC cable from a well-known (but undisclosed) American cable manufacturer.
Does the SRC-2 go deeper than the SRC-1?
Both the SRC-1 and SRC-2 have the same bandwidth. The SRC-2 has a 2nd low frequency driver to achieve the same SPL in larger listening rooms. The SRC-1 is designed for rooms from 120 square feet, to 500 Sq./ft. The SRC-2 optimum from 250 to 2000 Sq./ft.
What is the recommended placement of the speaker?
This will be different in every environment and will involve a little trial and error. Your Acora Acoustics dealer should help you place your speakers and tune them to your room / listening position.
Where can I listen to / buy a pair?
Just give our office a call or use the "Contact Us" link on this site. We will direct you to the nearest dealer to you. We insist that a dealer be involved in this process, we do not sell direct to consumers.
Are the speakers ported or sealed enclosures?
All of the Acora Acoustics loudspeakers have a tuned port to increase efficiency and widen bandwidth. This design created the best sound in our testing.
I see the SRB and SRC-2 utilize a Beryllium tweeter, the SRC-1 has a soft dome. Why not use the same on all 3 models?
A soft dome tweeter was utilized for the SRC-1 after exhaustive listening tests. Given its efficiency and balance, the soft dome tweeter was the clear choice for this model. You will still find that the three models share an incredibly similar tonal balance and sonic signature.