Emphaser EX12T4, EX15T4, EX10T4 User Manual

TECHNICAL SPECIFICATIONS: EX10T4 EX12T4 EX15T4

Usable Frequency Response* 25 - 100 Hz 20 – 100 Hz 20 – 100 Hz

Continuous Power Handling* 700 W RMS* 1000 W RMS* 1000 W RMS*

Peak Power Handling* 1400 W* 2300 W* 2800 W*

Nominal Impedance 4 Ohms 4 Ohms 4 Ohms

Voice Coil Diameter 2

½

/ 65.5 mm 3

/ 76.2 mm 3

/ 76.2 mm

Voice Coil Winding Height 38 mm 38 mm 38 mm

Total Weight of Sr-Fe Magnet 100 oz. / 2835 g 122 oz. / 3460 g 122 oz. / 3460 g

THIELE - SMALL PARAMETERS

Mechanical Damping (Qms) 7.6 7.5 9.2

Total Damping (Qts) 0.45 0.39 0.57

Moving Mass incl. Air Load (Mms) 176 g 223 g 350 g

Volume Displacement of Cone (Vd) 1064 cm³ 1509 cm³ 2425 cm³

Voice Coil Inductance @ 1kHz (Le) 2.94 mH 2.77 mH 2.63 mH

SURROUND

rubber is used for the surround, to allow proper cen-

T4 woofers. Santprene

is the most durable rubber material known,

NOMEX

DOUBLE SPIDER

All three T4 woofer models deploy mirrored Nomex

double spiders

with huge diameters and progressive deflection characteristics. The

material stands out with its unparalleled

4-LAYER WOUND CCAW VOICE COIL

4-layer wound copper clad alumimum voice coils with extended win-

The voice coil formers are made of high temperature polyimide, that is

The vented cavity under the double-spider suspension features large

windows to sustain best air exchange around the voice coil. The open

X-TREME T4 WOOFER KEY FEATURES

COMPOSITE CONE WITH STITCHED SURROUND

The T4 woofers deploy Nomex

Composite cones of extra thickness,

To improve reliability in the field, the surround is stitched to the cone,

X-TREME T4 WOOFER
SPECIFICATION SHEET

■ PROPRIETARY DIE-CAST ALUMINUM BASKET

■ 100 / 122 OZ. DOUBLE STACKED CERAMIC SR-FE MAGNET

■ NOMEX™ COMPOSITE CONE WITH STITCHED SURROUND

■ HIGH EXCURSION SANTOPRENE™ SURROUND

■ BLACK NOMEX™ DOUBLE SPIDER SUSPENSION

■ 2½"/ 3" HIGH TEMPERATURE POLYIMIDE VC FORMER

■ STRUCTURALLY REINFORCED FORMER NECK

■ 4-LAYER WOUND CCAW VOICE COIL

■ PERIMETER VENTED BASKET DESIGN

■ 10MM CNC MACHINED FRONT POLE PLATE

■ UNDERCUT & EXTENDED CENTER POLE

■ LARGE DIAMETER CENTER POLE VENT

■ INSULATED TINSEL LEAD WIRES

■ OVERSIZED SCREW TERMINALS

■ CAST ALUMINUM BASKET

EMPHASERs new proprietary cast aluminum basket line is overbuilt
to offer a truly solid and anti-resonant platform for the ultra-heavy
Strontium-Ferrite magnet motor assembly. A deep draw basket design
enables huge cone travel to both sides, due to increased distance
between lower spider platform and basket bottom.

■ DOUBLE STACKED CERAMIC SR-FE MAGNET

Double stacked Strontium-Ferrite magnets with total weights of 100
oz. or 122 oz form the heart or motor of the T4 woofer models. The
magnet systems use the highest coercitive force ceramic magnets avai­lable today, and stand out with their strong BL product, rendering high
efficiency values out of medium sized enclosures.

Always use 22 mm MDF or birch plywood to build the enclo-

Always use 22 mm MDF or birch plywood to build the enclo-

Always use 22 mm MDF or birch plywood to build the enclo-

The enclosures should be damped according to their function

The enclosures should be damped according to their function

The enclosures should be damped according to their function

material need

T4 woofer is very stiff. To achieve optimum low bass response, this

WARRANTY

from the

will at its own discretion repair or replace any mechanically defective T4

woofer at no charge, during the warranty period. This warranty is limited

will at its own discretion repair or replace any mechanically defective T4

will at its own discretion repair or replace any mechanically defective T4

Abuse

of this loudspeaker is

warranty

Any freight damage

Woofers damaged due to amplifier clipping or distortion

Any freight damage

Any freight damage

Exposure to water, oil, solvents or excessive heat

Woofers damaged due to amplifier clipping or distortion

Woofers damaged due to amplifier clipping or distortion

Repair attempts by unauthorized individuals

Exposure to water, oil, solvents or excessive heat

Exposure to water, oil, solvents or excessive heat

Install damage (screwdriver holes)

Repair attempts by unauthorized individuals

Repair attempts by unauthorized individuals

MI NIM UM

3

O3SH O

T ERM 3 O

VE RKI LL

The

graph

allows

to

an

amplifier

to

achieve a good power match between the T4 driver and the

amp.

The

OPTIMUM

zone

the

operating

area"

each T4 subwoofer

to

take

advantage

of

T4

driver

without

chances

of failure due to excessive heat and/or mechanical stress. Be

wise, make an appropriate choice!

MI NI MUM

3

Will

give

you

optimum

this

woofer

can ofthe

and

the

coil

always

work

at a comfor

tabl

e

operate

the

amplifier

connected to the T4 woofer at full playback volume for prolonged periods of time, as clipping induced failures may result.

O

3

W

give

you a good

compromise

quality

output

and

tion

ormance!

TE RM

3

within

this

zone

give

you

a

audible

output,

at

the

cost

of

overstressing

the and

exceeding

thermal

of

the

voice-coil. Life span of product may be adversely af

t duration only

OV ER KIL L

3

to

the

woofer

at

or

above

this

will

or

the

or

voice-coil

defective.

of

any

ocurring

at

this

are

O VER KI LL

O VER KI LL

O VER KI LL

Mounting Cutout Diameter 235 mm 282 mm 322 mm

X-TREME T4 WOOFER
SPECIFICATION SHEET