The SAE Mark XIV
Solid -State Electrostatic Transducer represents a dramatic advancement in the
loudspeaker industry. Years of extensive research and design were required to
perfect the ideal enclosure which would optimize the performance of all
internal components. Only after this was achieved was the task of developing
the correct drivers begun. Faithful sound reproduction was the goal while
developing the Mark XIV. Each and every component part was developed expressly
for the Mark XIV and is assembled within the SAE plant.
The result of this
intensive program is the purest re-creation of the recorded audio signal by any
device anywhere.
Low Frequency
Transducer
Nominal diameter -
12,3 inches
Voice coil diameter
- 4,175 inches
Voice coil material
- edge wound copper ribbon
Magnetic
assembly - Black anodized aluminum voice coil support to assist in transmission and dissipation of heat during high
power operation
Integral heat sink
in the magnet structure to assist elimination of temperature build up; double
spider system for precise alignment of the voice coil form to eliminate
breakage
11,25 pound cast
ductile iron-magnetic structure for efficient conductance of magnet flux.
Frame - rigid
8-spoke aluminum
Compliance -
non-fatiguing foam to insure linear travel
Free air electrical
resonance of 18 Hz ±1 Hz
In system electrical
resonance of 32 Hz ±1 Hz.
Chamber type - 3
cubic foot with acoustically suspended low-frequency driver
Specifications
Mid Frequency
Transducers
Nominal diameter -
5.0 inches
Voice coil diameter
- 1,0 inches
Magnetic assembly -
1,75 pounds
High
compliance is ensured with a half-roll linear surround, drivers are
acoustically suspended within their own chambers
Electrostatic
Elements: Constant-charge, bipolar-radiating elements
Crossover: All air-core copper inductors with special
design audio transformers
Crossover
Frequencies
Low Frequency Driver
: Adjustable to 120 Hz, 240 Hz, 4890 Hz
at 12 dB/octave
Mid Frequency
Drivers : 240 at 6 dB/ocave,
continuously variable calibrated adjustment from 16 dB through +4 dB
Electrostatic
Elements : 1440 Hz at 12 dB/octave,
efficiency level adjustable from -4 dB through +10 dB, continuously variable
calibrated adjustments
Solid-State
Electronic Protection
The circuit is
triggered by excessive voltage in relation to a particular frequency.
Triggering may be caused by ±DC voltage, super-sonic or subsonic oscillations
or any other amplifier malfunction; see graph. Operational mode is indicated by
an amber light behind the grill cloth. A red light indicates the
non-operational mode. This device also indicates the non-operational mode if it
senses a malfunction within itself. Initial activation time - 5 seconds
nominal; deactivation time 0,1 second nominal; reactivation time 5 seconds
nominal.
Minimum Power
Requirement : 100 Watts RMS per channel
(recommended)
Maximum Power Input
: No limit, Electronic Protection will
deactivate System with excessive wattage input
System Impedance : 8 Ω nominal
Finish : Oiled walnut or rosewood
Fabric : Ebony
Dimensions (H x W x
D): 1086
x 457 x 152 mm (42-3/4" x 24" x 6"
Shipping
Weight: 113,6 kg (250 pounds) /pair