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Turntables — Connected-Fidelity TT Hub
Description, images, technical data and specifications
Connected-Fidelity TT Hub
Image source - (c) Connected-Fidelity
The TT Hub is a belt-drive turntable from Connected-Fidelity, the British manufacturing arm of Air Audio Distribution, which imports Hana cartridges and Sorane tonearms into the UK. Designed by Michael Osborn, it was launched at the Bristol HiFi Show 2023 and sells in the USA for USD 5,000. It is the only turntable Connected-Fidelity lists.
Key specs that matter
The plinth is made of multiple layers of bamboo ply in a mechanically isolated constrained-layer construction, finished in dark stain or clear lacquer. The turntable has no suspension and stands on its own bamboo isolation base with silicone damping feet and height-adjustable brass spikes. The main bearing is a self-lubricating sintered bronze design measuring 16 x 75 mm, running on a PEEK base with a sapphire thrust pad inside a thick-walled aluminium housing. The solid acrylic platter is 30 mm thick, with a bonded foamed damping layer on top. An AC synchronous motor in an aluminium housing is driven by an outboard quartz-regulated controller with a stated accuracy of 0.003%.
Engineering and use context
Osborn chose bamboo because it is economical, attractive and well damped, storing little vibrational energy. In the constrained-layer plinth, vibration is turned into heat at the boundaries between layers rather than resonating through the structure. With no suspension, the isolation base and spikes do the job of decoupling the deck from its support. PEEK, a high-performance plastic, was picked for the bearing base for its very low friction, while the sapphire thrust pad carries the platter's weight on a hard, smooth surface. Acrylic has an impedance close to that of vinyl, and the foamed top layer absorbs vibration from the record. The quartz-referenced controller generates a stable mains frequency for the synchronous motor, so speed does not follow fluctuations in the wall supply. The TT Hub accepts various tonearms, and a custom version takes two arms.
Pairing
The obvious partners are a Sorane tonearm and a Hana cartridge, the brands the parent company imports. In the UK a complete package with a Sorane arm and Hana cartridge is offered, and US packages combine the deck with Sorane, AMG and ViV Laboratory arms and Benz Micro cartridges. Connected-Fidelity's Float isolation pucks can support other components in the system.
Key specs that matter
The plinth is made of multiple layers of bamboo ply in a mechanically isolated constrained-layer construction, finished in dark stain or clear lacquer. The turntable has no suspension and stands on its own bamboo isolation base with silicone damping feet and height-adjustable brass spikes. The main bearing is a self-lubricating sintered bronze design measuring 16 x 75 mm, running on a PEEK base with a sapphire thrust pad inside a thick-walled aluminium housing. The solid acrylic platter is 30 mm thick, with a bonded foamed damping layer on top. An AC synchronous motor in an aluminium housing is driven by an outboard quartz-regulated controller with a stated accuracy of 0.003%.
Engineering and use context
Osborn chose bamboo because it is economical, attractive and well damped, storing little vibrational energy. In the constrained-layer plinth, vibration is turned into heat at the boundaries between layers rather than resonating through the structure. With no suspension, the isolation base and spikes do the job of decoupling the deck from its support. PEEK, a high-performance plastic, was picked for the bearing base for its very low friction, while the sapphire thrust pad carries the platter's weight on a hard, smooth surface. Acrylic has an impedance close to that of vinyl, and the foamed top layer absorbs vibration from the record. The quartz-referenced controller generates a stable mains frequency for the synchronous motor, so speed does not follow fluctuations in the wall supply. The TT Hub accepts various tonearms, and a custom version takes two arms.
Pairing
The obvious partners are a Sorane tonearm and a Hana cartridge, the brands the parent company imports. In the UK a complete package with a Sorane arm and Hana cartridge is offered, and US packages combine the deck with Sorane, AMG and ViV Laboratory arms and Benz Micro cartridges. Connected-Fidelity's Float isolation pucks can support other components in the system.
Specifications
Model name
TT Hub
Speed
N/A
Drive
Belt
Suspension
Fixed
Tonearm preinstalled
N/A
Tonearm model
N/A
Cartridge preinstalled
N/A
Cartridge model
N/A
Platter
acrylic
Motor
N/A
Wow and Flutter (%)
N/A
Signal to Noise (dB)
N/A
Rumble (-dB)
N/A
Dimensions (mm)
N/A
Weight (kg)
N/A
Official link