ATC studio drive units are built for people who want nothing less than the finest quality and the highest performance. Their role is to complement other very high performance high quality equipment to produce literally - the best audio performance money can buy. And because they use state of the art design, and are subject to very tough quality control, ATC studio drivers have a reputation for reliability that's second to none. ATC's SM75-150 soft dome mid-range driver has established new performance limits for such units. Although it is only a 3 inch unit, it combines high sensitivity with extremely low distortion and has a usable frequency response from 300Hz to 4000Hz. Its key components are its soft diaphragm, impregnated with a viscous damping medium (which gives a smooth response with very low audible colouration) and the drive motor consists of a short coil operating in a long magnetic gap (which cuts audible distortion dramatically). Neither of these features is exactly cheap to engineer or build, but together they give the ATC mid-range an unrivalled combination of efficiency, compactness and power handling capability.
ATC's low frequency drive units come as a four unit range - 9 inch, 12
inch, 15 inch (3 inch voice coil) and 15 inch (4 inch voice coil). Each unit
has a short coil operating in a long magnetic field which has the advantage
that during normal operation the coil always remains within the linear magnetic
field. The 9 inch and 15 inch units are also offered with a long coil and
short magnetic field.
The mid dome has a magnet of 181 mm diameter that weights over 8 kg !!!
The bass drivers incorporate the latest design principles and are well known
for their very low distortion levels, a quality which complements the outstanding
performance of the ATC mid-range dome. Each bass driver has its voice coil
formed of edgewise-wound copper ribbon wire, wound on an aluminium or kapton
former. New adhesive technology is used, along with small coil-gap clearances
to give very high power handling ability, with first class durability. The
suspension of each ATC bass driver has been developed so that large excursions
yield only very low distortion, and each unit has a diecast chassis and a
bolted ceramic magnet structure, with a symmetrical magnetic field, to reduce
distortion even further. All of the magnet's metal parts are finished in
black to assist heat dissipation from the voice coil, an aid to durability.
B100-375SC, has a magnet of 220 mm diameter that weights over 18-kg (40
lb) - over 50% larger than the biggest Focal's Audiom!
The coil is 100 mm diameter. Membrane is from impregnated cellulose.
| SPECIFICATION
Sensitivity Nominal Power Rating Maximum Input Power Maximum Programme Power Usable Frequency Range Recommended Crossover
Nominal Free Air Resonance fs Mechanical Damping Qms Electromagnetic Damping - QES Total Damping - QTS Equivalent Compliance Volume - VAS Suspension Compliance Cms Effective Moving Mass - Mms Mechanical Resistance Rms Voice Coil Diameter Voice Coil Length Voice Coil Nominal Resistance Voice Coil Nominal Impedance Voice Coil Maximum Travel
Magnet Total Flux 0 Magnet Flux Density - B Magnet BI Product - BI Magnet Gap Length Magnet Gap Volume Diaphragm Effective Area - So Diaphragm Surround Type Overall Diameter Overall Depth Rear Mount Baffle Hole Diametel Front Mount Baffle Hole Diameter Front Mount Rebate Depth Mounting Hole P.C.D. Mounting Hole Size x Qty Shipping Weight Pack Size |
SM75-150
91 75 150 300 Up to 5k 380 to 3k8 320 75 3.5 8.5 12 6 1.9 1.6 5.0 50 Fabric 190x162 94 154 172 M6 x 4 7 25x25x16 |
SM75-150SUPER This is used in Project6 94 75 150 300 Up to 5k 380 to 3k8 320 75 3.5 8.5 12 6 2.5 2.1 5.0 50 Fabric 190x162 92 154 172 M6 x 4 9 25x25x16 |
UNITS
db@1w@1m Watts Watts Watts Hz Hz Hz Litres X 10-4 m/N gms N S/M5 mm mm Ohms Ohms mm X10-3 Wb Tesla N/A mm X10-6M3 cm 2 mm mm mm mm mm mm kg cm |
BASS UNIT IN PROJECT 6
| SPECIFICATION
Sensitivity Nominal Power Rating Maximum Input Power Maximum Programme Power Usable Frequency Range Recommended Crossover
Nominal Free Air Resonance fs Mechanical Damping Qms Electromagnetic Damping - QES Total Damping - QTS Equivalent Compliance Volume - VAS Suspension Compliance Cms Effective Moving Mass - Mms Mechanical Resistance Rms Voice Coil Diameter Voice Coil Length Voice Coil Nominal Resistance Voice Coil Nominal Impedance Voice Coil Maximum Travel
Magnet Total Flux 0 Magnet Flux Density - B Magnet BI Product - BI Magnet Gap Length Magnet Gap Volume Diaphragm Effective Area - So Diaphragm Surround Type Overall Diameter Overall Depth Rear Mount Baffle Hole Diametel Front Mount Baffle Hole Diameter Front Mount Rebate Depth Mounting Hole P.C.D. Mounting Hole Size x Qty Shipping Weight Pack Size |
SB100-375SC
91 100 200 400 Up to 3k Up to lk 30 2.1 0.38 0.32 380 2.7 85 9.1 100 8 5.4 8 25 5.0 1.0 15 16 13 980 Foam 396 150 360 355 15 370 M6 x 8 18 46x46x23 |
UNITS
db@1w@1m Watts Watts Watts Hz Hz Hz Litres X 10-4 m/N gms N S/M5 mm mm Ohms Ohms mm X10-3 Wb Tesia N/A mm X10-6M3 cm 2 mm mm mm mm mm mm kg cm |
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