10"
Dual Concentric Drive Unit
Calibrated
High Frequency Controls
Time
Compensated with Syncsource™ for Unipoint Accuracy
Compact
Monitor
The monitor
shall be a compact type, with an internal volume of 35 litres. The cabinet
shall contain a single 10" drive unit of a Dual Concentric design,
incorporating a passive delay network to give a phase better than ±25° over the
frequency band 100 Hz to 10 kHz.
The monitor
shall have an anechoic sensitivity of 90 dB, measured across its full frequency
band width of 55 Hz - 20 kHz, ±4 dB.
The monitor
shall be suitable for use with amplifiers rated up to 150 W per channel and
shall be capable of handling peak inputsof 250 W.
The monitor
shall be a Tannoy SRM 10B.
Components
Drive Units
- The drive units in the SRM Series, while being of three different frame sizes
(10", 12",and 15"), are all Dual Concentric Loudspeakers. A
horn-loaded compression driver handling the high frequencies is mounted within
a direct radiator bass unit on the same frame.
Bass Unit -
this is a low resonance speaker with a
2" high temperature voice coil. The felted paper cone gives smooth
performance extending well into the midrange region.
Treble Unit
- high frequencies are reproduced by a 2" diameter aluminium voice coil
and duralumin diaphragm, horn loaded through a phase compensating multiple
throat. The flare of the HF horn is continued by the LF cone.
Crossover
The
crossover network divides the signal from the amplifier betwen the high and low
frequency drives. To avoid degradation of the audio signal Tannoy SRM Series
crossovers use only the finest quality components, rigidly mounted on a glass
fibre reinforced printed circuit board.
Generously
rated resistors and inductors, and low loss solid dielectric capacitors are all
capable of withstanding the high peak powers associated with modern wide
dynamic range recordings. Complex switching circuitry, with two controls enable
loudspeaker responses to be tailored to the listening environment.
Enclosures
To provide
optimum performance a loudspeaker cabinet must be of very rigid construction.
eachSRM Series cabinet is constructed of high density particle board, lined
with acoustic foam to absorb reflections and eliminate standing waves. Bitumen
material damps mechanical resonances, while any spurious resonances which can
occur in large panel areas are eliminated by rigid internal crossbracing.
The exposed
surfaces of each cabinet are veneered in American Walnut, hand rubbed with oil
and wax to enhance the natural richness of the wood. The finishing touch to
each loudspeaker is given by the detachable grilles covered in an attractive,
acoustically transparent cloth.
Low
frequency loading of each loudspeaker is provided by a carefully designed
ducted port system, which reduces distortion and extends bass response.
Specifications
Recommended
Amplifier Power: 10 - 150 W (RMS per
channel)
Peak Power
Handling: 250 W
Impedance
[Nominal/Minimal]: 8 Ω / 5,5 Ω
Sensitivity
(2,83 V at 1 m):
Domestic
: 93 dB
Anechoic
: 90 dB
Frequency
Response: 55 Hz - 20 kHz (±4 dB)
Phase
Response: better than ±25° between 100
Hz to 10 kHz
Apparent
Acoustic Source: 169 mm behind front
surface of baffle
Dispersion
at -6 dB points: 90° conical at 10 kHz
Crossover
Frequency: 1,2 kHz
Crossover
Type: Overdamped second order low pass
coupled with first order high pass filters.
Parallel impedance compensation together with SyncSource second order
all pass passive delay network. Positive acoustic palarity 5 position treble
energy attenuator and 4 position roll off slope.
Internal
Volume: 35 litres
Cabinet
Material: 18 mm high density particle
board and internal damping material
Cabinet
Finish: Real walnut Veneer
Grille: Single piece - brown fleck cloth on wooden
frame
Cabinet
Dimensions (H x W x D): 524 x 350 x 265
mm (20½" x 15" x 13½")
Cabinet
Weight: 18 kg (40 lbs)