GALLERY
PREVIOUS PROJECTS
Here are some examples of previous speakers with different speaker configurations and in different materials.
Carrara
2-Ways with Seas driversEnclosure: Carrara Marble, Vented Low Frequency
Bass/Mid Driver: Seas Excel, Nextel Coated Paper
Tweeter: Seas Excel T25
Frequency Response (+/-2dB): 105Hz - 20kHz
Cut-Off Frequencies (-6dB): 75Hz - 22kHz
Max SPL/Pair @1m: 102dB
Sensitivity: 85dB/W @1m
Crossover Frequency & Type: 2.5kHz 2nd Order
Crossover Components: Air Cored OFC Inductors, Metalised Polypropylene Capacitors
Limestone
2-Way Active MonitorsEnclosure: Limestone
Frequency Response (+/-2dB): 35Hz - 20kHz ±2dB
Crossover Frequency: 2300Hz
3rd Harmonic Distortion: @ 90dB SPL, 1m,500-7kHz 0.08%
3rd Harmonic Distortion: @ 90dB SPL, 1m, 200 - 20kHz 0.2%
3rd Harmonic Distortion: @ 90dB SPL, 1m, ≤ 200Hz 1.5%
Acoustic Output - SPL: @ 1m, Long term (80Hz -20kHz) 105dB
Black Marble
2-Ways with Seas driversEnclosure: Black Marble
Bass/Mid Driver: Seas Excel, Nextel Coated Paper
Tweeter: Seas Excel T25
Frequency Response (+/-2dB): 105Hz - 20kHz
Cut-Off Frequencies (-6dB): 75Hz - 22kHz
Max SPL/Pair @1m: 102dB
Sensitivity: 85dB/W @1m
Crossover Frequency & Type: 2.5kHz 2nd Order
Crossover Components: Air Cored OFC Inductors, Metalised Polypropylene Capacitors
Limestone
3-Ways with ATC DriversEnclosure: Shelley Limestone , Vented Low Frequency
Bass: ATC SB75-234 SC
Mid Driver: ATC SM75-150 Soft Dome
Tweeter: Seas Excel T25
Frequency Response (+/-2dB): 70Hz - 20kHz
Cut-Off Frequencies (-6dB): 40Hz - 22kHz
Max SPL/Pair @1m: 111dB
Sensitivity: 87dB/W @1m
Crossover Frequencies & Type: 400Hz & 3.5kHz, 2nd Order
Bespoke:
All our speakers are bespoke and unique to you, so please get in touch to discuss your exact requirements
About Us: Jonny Anderson
Jonny began a stonemasonry apprenticeship in 1984 with the Cambridge based firm Rattee and Kett. In the 10yrs with them he worked on Kings College Chapel, Trinity Gate and Westminster Abbey. Moving to Gloucestershire in the 90s he became Freelance and began to develop his carving skills.
Favouring the Abstract, Jonny combined his passions for form and music by producing his first pair of stone speakers in 1998. Since building these prototypes Jonny has steadily refined the process and now handcrafts these uniquely shaped speakers after hollowing out solid blocks of stone. Each pair is tuned to give a flat response with great stereo imaging.
Training
In 1998 Jonny teamed up with ROCKWORX to run a small stonecarving workshop at Glastonbury Festival and due to the initial success this has now developed into a much larger workshop with a solar powered sound system powering Anderson Speakers creating a lively and vibrant atmosphere for people to enjoy.
In 2008 Jonny was asked by Woodchester Mansion to run training courses for the Building Craft College students and Get Into courses for the Princes Trust. This has now extended to Bath College students and The Princes Foundation Building Craft Apprentices. He also Assesses for Banker Masonry and Heritage Stonework qualifications through the CITB.
Since 2010 Jonny has been heavily involved with training at Dumfries House for both The Princes Foundation and The Princes Trust.