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AT440MLa
Dual Magnet Stereo Phono
Cartridge
This AT440MLa cartridge is equipped with Audio-Technica's patented Dual
Magnet cartridge design and delivers “PRACTICALLY IDENTICAL TO
THE CUTTER HEAD” performance. Additional features include a
Paratoroidal generator coil circuit, a Micro-Linear stylus, plus other
advanced designs for top performance.
Please read instructions thoroughly before using the cartridge.
The AT440MLa uses PCOCC (Pure Copper by Ohno Continuous Casting
process) in the construction of its coil and lead wires. Its advanced
MicroLine
and distortion than elliptical or conventional linear contact styli.
PRELIMINARY INSTRUCTIONS
Remove the stylus assembly for safekeeping. With the clear stylus guard
down to protect the stylus, remove the
stylus assembly by rotating it down and
away from the cartridge body (Figure 1).
Place the stylus assembly safely out
of harm's way. Mount the cartridge body
to the tone arm head shell. Use the
mounting hardware supplied either with
the cartridge or with the turntable, and tighten until just snug. Replace the
stylus assembly briefly to check for mechanical interference with mounting
hardware. Hook the back of the stylus assembly to the bottom of the
cartridge, then rotate up. The stylus assembly should click into place.Then
remove the stylus assembly for safekeeping.
ELECTRICAL CONNECTIONS
Four terminals at the rear of the cartridge
are color-coded to match standard wiring in
stereo tone arms (Figure 2). Connect with
slip-on lugs provided on head shell wiring.
NEVER SOLDER TO CARTRIDGE
TERMINALS! Heat applied to the terminals
will damage the internal cartridge wiring.
For monaural operation, the Left and Right
signal terminals should be connected to the
monaural signal lead, and the Left and Right ground terminals should be
connected to the ground lead.
CONNECTION TO SYSTEM
Run two shielded audio cables from the cartridge/tone arm connections on
the turntable to the magnetic phono inputs on the amplifier or receiver.
Observe Left and Right channel markings. A separate ground wire
usually comes attached to the turntable, and should be connected to the
ground screw found on the back panel of most electronics.
FINAL ADJUSTMENT
Reinstall stylus assembly. Following the procedure given in the
turntable/tone arm instructions, carefully set tracking force to
approximately the middle of the range shown for your model in the
specifications table. A tracking force outside the given range can result in
increased distortion and excessive record and stylus wear. Other tone arm
adjustments provided such as stylus overhang and anti-skating, should
be set according to manufacturer's instructions to obtain the best
performance. For safety, keep the stylus guard down whenever the
turntable is not in use.
OPERATING SUGGESTIONS
The low tracking force and high compliance of Audio-Technica cartridges
provide the highest level of performance available, but also make them
susceptible to damage if handled improperly. Most stylus damage is
caused by rough treatment while the tone arm is being operated by hand.
A finger should always be placed under the tone arm finger lift, never over
it. A damped cueing device which lowers the tone arm gently to the record
is found on many record players and should be used regularly for greatest
protection of the stylus and records. Distorted or unbalanced sound from
™
stylus produces better high frequency response with less wear
Figure 1
White (L +)
Red (R +)
Blue (L -)
Green (R -)
Figure 2
the two phono channels often can be traced to wires interchanged or
touching at the cartridge terminals. A reduction in output or muffled sound
may result if the stylus assembly is not fully seated. Hum from the
phonograph input usually can be traced to a bad audio cable or absence
of the separate ground wire from turntable to amplifier.
REPLACEMENT STYLI
Audio-Technica grain-oriented diamond styli are carefully selected and
polished for minimum wear to themselves and to your records. However,
after an extended period of play, even the finest diamond stylus becomes
worn. For this reason, it is best to have the stylus inspected annually, or
whenever it appears that wear or damage may be a problem. The dealer
from whom you purchased this cartridge can supply genuine
Audio-Technica replacement styli. Only genuine styli with the registered
circle monogram will provide the same level of performance.
AT440MLa SPECIFICATIONS
Frequency response (Hz) : 20-20,000
Output voltage (mV, 1 kHz, 5 cm/sec.) : 4.0
Channel separation (dB, 1 kHz ) : 27
Channel balance (dB, 1 kHz) : 0.8
Tracking force (g) : 1.0-1.8 (1.4 optimal)
Coil impedance (kΩ, 1 kHz) : 3.2
Coil inductance (mH, 1 kHz) : 490
Load impedance (kΩ) : 47
Dynamic compliance (x10-6cm/dyne) : 10
Static compliance (x10-6cm/dyne) : 40
Stylus : 0.12 mil Nude
Vertical tracking angle : 20°
Dimensions (mm) : L17.3 x W 16.0 x
Weight (g) : 6.5
Replacement stylus : ATN440MLa
Design and specifications are subject to change without notice.
One-Year Limited Warranty
Audio-Technica brand products purchased in the U.S.A. are warranted for one year from date
of purchase by Audio-Technica U.S., Inc. (A.T.U.S.) to be free of defects in materials and
workmanship. In event of such defect, product will be repaired promptly without charge or,
at our option, replaced with a new product of equal or superior value if delivered to A.T.U.S.,
or an Authorized Service Center, prepaid, together with the sales slip or other proof of purchase date.
defects due to normal wear, abuse, shipping damage, or failure to use product in accordance
with instructions. This warranty is void in the event of unauthorized repair or modification.
For return approval and shipping information, contact the Service Department
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224.
Except to the extent precluded by applicable state law,
consequential, incidental, or special damages; any warranty of merchantability or fitness for particular purpose expires when this warranty expires.
This warranty gives you specific legal rights, and you may have other rights which vary from
state to state.
Outside the U.S.A., please contact your local dealer for warranty details.
Prior approval from A.T.U.S. is required for return. This warranty excludes
Audio-Technica U.S., Inc.
1221 Commerce Drive, Stow, Ohio 44224 330/686-2600
www.audio-technica.com
P51788 ©2005 Audio-Technica U.S., Inc. Printed in Japan
square Micro-Linear
stylus
H 28.0
A.T.U.S. will have no liability for any