Data Sheet

Architect and
Engineer
Specifications
T725
The impedance-matching transformer shall be a
Bogen Model T725, or equivalent, capable of matching
the 70V or 25V output of an amplifier. An 8-ohm sec-
ondary shall connect to a speaker, and a multi-tap pri-
mary shall connect to the 70V or 25V amplifier output.
Available power taps shall be 4, 2, 1, 1/2, 1/4, and 1/8
watts. The unit shall measure 2-1/2" W ×
1-1/4" H × 1-3/8" D. The unit shall weigh approx. 6 oz.
T72510
The impedance-matching transformer shall be a
Bogen Model T72510, or equivalent, capable of
matching the 70V or 25V output of an amplifier.
An 8-ohm secondary shall connect to a speaker, and a
multi-tap primary shall connect to the 70V or 25V
amplifier output. Available power taps shall be 10, 5,
2-1/2, 1-1/4, and 5/8 watts. The unit shall measure
3" W × 1-1/2" H × 1-1/2" D. The unit shall weigh
approx. 10 oz.
TL100
The line-matching transformer shall be a Bogen Model
TL100, or equivalent, and shall provide a balanced 1:1
input and isolation. The primary impedance shall be
the same value as the total termination of the input
impedance to the amplifier(s). The frequency response
shall be within ±2 dB from 20 Hz to 15 kHz. The unit
shall incorporate mumetal shielding for hum reduction.
The transformer connections shall terminate in a
keyed nine-pin miniature plug, which shall fit into a
matching nine-pin receptacle. The transformer shall be
cylindrical in shape with a 1" diameter and the overall
length (including pins) shall not exceed 1-1/4".
TL600
The line-matching transformer shall be a Bogen Model
TL600, or equivalent, and shall match a balanced
600-ohm zero level transmission line, or provide a
600-ohm output from a pre-amplifier. The secondary
impedance shall be 10k ohms. The frequency
response shall be within ±1 dB from 20 Hz to 20 kHz.
The unit shall incorporate mumetal shielding for hum
reduction. The transformer connections shall terminate
in a keyed nine-pin miniature plug, which shall fit into a
matching nine-pin female receptacle. The transformer
shall be cylindrical in shape, with a 1" diameter and the
overall length (including pins) shall not exceed 1-1/4".
WMT1A
The line-matching transformer shall be a Bogen Model
WMT1A, or equivalent, capable of matching either
inputs from, or outputs to, a 600-ohm line.
It shall provide a perfect impedance match between a
600-ohm balanced line and the high-impedance input
of an amplifier, or the 25V output of an amplifier.
Frequency response shall be ±2 dB from 50 Hz to
20 kHz. Less than 0.1 volt across a 600-ohm line shall
be required for full output power from an average
amplifier (maximum level, +20 dBm). Output shall be
approximately 1.73 volts when connected across the
25V output tap or WMT1A Hi-Z output connection of a
Bogen amplifier.
Line input or output connections from the 600-ohm line
shall be made via a three-screw terminal strip.
Connection to the auxiliary input of an amplifier shall
be by means of a shielded cable terminated in an RCA
plug. Provisions shall be included to connect the unit to
a microphone input. The mounting bracket shall allow
the transformer to be mounted by means of two steel
screws. The unit shall measure 2" W x 2-3/8" H
x 1-1/4" D and the product weight shall be 4 oz.
WMT1AS
The line-matching transformer shall be a Bogen Model
WMT1AS, or equivalent, capable of matching either
inputs from, or outputs to, a 600-ohm line.
It shall provide a perfect impedance match between a
600-ohm balanced line and the high-impedance input
of an amplifier, or the 25V output of an amplifier.
Frequency response shall be ±2 dB from 50 Hz to
20 kHz. Less than 0.1 volt across a 600-ohm line shall
be required for full output power from an average
amplifier (maximum level, +20 dBm). Output shall be
approximately 1.73 volts when connected across the
25V output tap or WMT1AS Hi-Z output connection of
a Bogen amplifier.
Line input or output connections from the 600-ohm line
shall be made via a three-screw terminal strip.
Connection to the auxiliary input of an amplifier shall
be by means of a shielded cable terminated in an RCA
plug. Provisions shall be included to connect the unit
to a microphone input. The WMT1AS can also adapt
speaker-level signals (25V/70V systems) to a level
suitable for the AUX input of an amplifier. The mounting
bracket shall allow the transformer to be mounted by
means of two steel screws. The unit shall measure
2" W x 2-3/8" H x 1-1/4" D and the product weight shall
be 4 oz.