4/24/2023 0 Comments Blackhole audio driver![]() The main requirement is that the unit be located against a wall boundary where acoustic pressure builds up. The Black Hole employs a heavy-duty 12" driver and a 350-watt power amp to provide enough output to civilize a typical listening room of 15' x 25' or smaller. ![]() Its compact 15" cubed dimensions allow most listeners to integrate it into their room plan. The Black Hole is even more useful when a given installation makes passive bass traps impractical. We view this approach as an integral part of a total room solution that may also include passive treatment and equalization to optimize the listening experience. Our focus was to simplify and improve where possible and reduce size and price. We have taken up the mantle with the Black Hole. The Shadow was only produced for a few years. Robert Harley reviewed it for Stereophile and found it highly effective. He released a production design as the Phantom Acoustics Shadow. In 1990 Nelson Pass was awarded the active low-frequency acoustic resonance absorber US patent 4899387 in which he outlined a clever embodiment of the concept along with application and performance criteria. ![]() It was designed to improve sound quality in domestic environments as the only known means of dealing with room-induced anomalies in a compact form factor.Īn active acoustic pressure absorber was first mentioned by HF Olsen in his 1957 book Acoustical Engineering, a reference text still in common use today. The latter is thus positioned in the middle of this open floor plan without the usual nearby back wall.Ĭlayton Shaw of Spatial Computer: "Our Black Hole is an active acoustic pressure reduction device. The listening space opens into the second storey via a staircase and the kitchen/dining room are behind the main listening chair. Room size: 5m x 11.5m W x D, 2.6m ceiling with exposed wooden cross beams every 60cm, plaster over brick walls, suspended wood floor with Tatami-type throw rugs. Sundry accessories: Extensive use of Acoustic System Resonators, noise filters and phase inverters Powerline conditioning: 1 x GigaWatt PF2, 1 x Furutech RTP-6 Stands: 2 x ASI HeartSong 3-tier, 2 x ASI HeartSong amp stand Speakers: Audiomanufacture Boenicke B10, Aries Cerat GladiusĬables: Complete loom of Zu Audio Event, Entreq USB cables Preamp/Integrated: ModWright LS-100 with Synergy Hifi tubes, Esoteric C-03, Bent Audio Tap-XĪmplifier: First Watt SIT2, FirstWatt J2, ModWright KWA 100SE Source: 27" iMac with 3.4GHz quad-core Intel Core i7, 16GB 1.333MHz RAM, 2TB hard disc, 256GB SSD drive, ADM Radeon HD 6970M with 2GB of GDDR5 memory, PureMusic 1.8 7 in hybrid memory play with pre-allocated RAM and AIFF files up to 24/192 Audirvana 1.3.1, April Music Eximus DP1, Esoteric/APL Hifi UX1/NWO-M, Audiophilleo 2
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