Hafler TRM6.1, Installation & Operation Manual

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I
NTRODUCTION
– 1 –
Thank you and congratulations on your purchase of the HAFLER TRM6.1 reference monitor, the world's finest brand in
professional audio equipment.
The TRM6.1 ( T rans•ana R eference M onitor) is a bi-amplified, two-way near field monitor offering unmatched quality
and performance in a truly professional grade product. The TRM6.1 is great for Professional Studios, Digital Work
Stations, Broadcast Booths, and Home Project Studios.
Although we realize a professional such as yourself already knows a thing or two about pro audio, we urge you to read
this manual to at least humor our technical writer. For ease of use, this manual is organized into three main sections:
Installation, Operation, and Service Reference . “Installation” covers the set-up of your new HAFLER equipment in the
system. “Operation” covers the controls and how to use them for optimum performance. “Service Reference” contains
field service information useful for technicians and engineers.
T
ECHNICAL
D
ESIGN
F
EATURES
The TRM6.1 amplifiers utilize our trans• ana circuit topology employing MOSFETs in the output stage resulting in supe-
rior sound quality.
An active 4th order Linkwitz-Riley crossover sends frequencies above 3.2kHz to a 35-watt amplifier driving a proprietary
wave guide tweeter, and frequencies below 3.2kHz to a 50-watt amplifier driving an 6" transducer. The high frequency
channel features up to ±4dB of Treble shelving, while the low frequency channel features up to ±4dB of Bass shelving.
In addition, the low frequency channel includes an active 2nd order subsonic filter selectable to limit harmful frequen-
cies below 30Hz or 60Hz. Monitoring the status of both channels is done with an LED indicating Power On, Clipping
and Thermal.
The high frequency transducer is a Ferrofluid cooled 1" (25mm) soft dome hemispherical tweeter utilizing a rigid but
lightweight silk diaphragm. A Phase Lens and axis-symmetric exponential waveguide improve the transition of sound-
waves from planar to spherical which result in excellent high frequency dispersion and coherent on-axis frequency
response. The low frequency transducer is a proprietary 6.5" (165mm) steel basket woofer utilizing a 20 mil polypropy-
lene cone with a 20 mil dust cap. The suspension consists of a nitrile rubber surround and an extended collar flat spi-
der. The motor is constructed from a 1.25" diameter voice coil on an anodized aluminum former with an extended vent-
ed pole piece. The 33 oz. ferrite magnet is magnetically shielded to suppress stray leakage flux to only 4"...well within
the confines of the monitor's walls, making it great for use near CRT monitors.
The cabinet is made from acoustically dead 19mm MDF, internally lined with damping material, and features a rear fir-
ing radiused Aerovent for reduced turbulence. The outside features a semi-gloss finish and includes a rubber pad on the
underside to control vibration.