WMT1A
Frequency Response: 50 Hz to 20 kHz ±2 dB
Sensitivity: Less than 0.1V across 600-
ohm line required for full
output power from average
amplifier. Maximum level
+20 dBm
Output: Approx. 1.73V output when
connected across 25V out-
put tap or WMT1A Hi-Z
output connection on a
Bogen amplifier.
Dimensions: 2-3/8" H x 2" W x 1-1/4" D
Shipping Weight: 1lb.
TL100 & TL600
Function: TL100 – Provides balanced
one-to-one input match and
isolation
TL600 – matches balanced
600-ohm telephone line to
input of power amplifier
Frequency Response: TL100 – 20 Hz to 15 kHz,
±2 dB
TL600 – 20 Hz to 20 kHz,
±1 dB
Hum Reduction: Mumetal shielding
Construction: Cylindrical shape, keyed
nine-pin miniature plug
Technical
Specifications
Architect and
Engineer
Specifications
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 0.1volt across 600-ohm line shall be
required for full output power from an average ampli-
fier (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 to a three-screw terminal strip.
Connection to the auxiliary input of an amplifier shall
be by means of a shielded cable terminated in a
phono plug. Provisions shall be included to connect
the unit to a microphone input.The mounting brack-
et shall provide for the transformer to be mounted
by means of two steel screws.The unit shall measure
2-3/8" H x 2" W x 1-1/4" D and the shipping weight
shall be 1lb.
TL100
The matching transformer shall be a Bogen Model
TL100, or equivalent, and shall provide a balanced
one-to-one input for matching and isolation.The pri-
mary impedance shall be the same value as the total
termination of the input impedance to the amplifi-
er(s). The frequency response shall pass frequencies
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 2".
TL600
The line 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 imped-
ance shall be 10,000 ohms. The overall frequency
response shall pass frequencies within ±1 dB from 20
Hz to 20 kHz. The unit shall incorporate mumetal
shielding for hum reduction. The transformer con-
nections 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 2".
50 Spring Street, Ramsey, NJ 07446
201-934-8500 • FAX: 201-934-9832 • www.bogen.com
