54-7775-02D Transformers Spec Sheet

54-7775-02D Transformers Spec Sheet
Transformers
Speaker Impedance
Matching Models:
T725 & T72510
T725
T72510
Line Impedance
Matching Models:
TL100, TL600, & WMT1A
TL100/TL600
Description
Features
WMT1A
T725, T72510
The Bogen Models T725 and T72510 transformers
are speaker-matching transformers that allow an
8-ohm speaker to be connected to 70V or 25V amplifier outputs. An 8-ohm secondary connects to the
speaker and the multi-tap primary connects to the 70V
or 25V amplifier output.
The T725 can be tapped at 4, 2, 1, 1/2, 1/4, and 1/8
watts, while the T72510 can be tapped at 10, 5, 2-1/2,
1-1/4, and 5/8 watts. All wires are easily accessible.
TL100, TL600
The Bogen Models TL100 and TL600 line impedancematching transformers are compact, plug-in units
specially designed for use with power amplifiers.
The TL100 provides a balanced 1:1 input match and
isolation; its primary impedance will be the same value
as total termination of the input impedance to the
amplifier(s).
Model TL600 impedance matches the output of a 600ohm telephone line to a Bogen power amplifier input.
WMT1A
The Bogen Model WMT1A transformer is designed
especially for impedance-matching inputs from, or outputs to, a 600-ohm line. The WMT1A has a Hi-Z, 10kohm primary impedance and a Lo-Z, 600-ohm secondary impedance balanced with a center tap.
As an input-matching transformer, it may be used to
connect telephone systems to most Bogen public
address amplifiers for telephone paging. It also functions as an output-matching transformer in feeding
program material over a 600-ohm telephone line (typically for "music-on-hold" applications). The WMT1A
is compatible with any amplifier having a 25V output
terminal.
T725 and T72510
WMT1A
• Allows an 8-ohm speaker to connect to 70V
or 25V amplifier outputs
• T725 Power Taps: 4, 2, 1, 1/2, 1/4, 1/8 watts
• T72510 Power Taps: 10, 5, 2-1/2, 1-1/4, 5/8
watts
• Easily-accessed, stripped and tinned wire
terminations
• Small, compact, and cost-effective
• Hi-Z, 10k-ohm primary impedance
• Lo-Z, 600-ohm secondary impedance, balanced
with center tap
• Matches high-to-low impedance or low-to-high
impedance
• Adapts line-level signals to microphone inputs
• RCA connector for Hi-Z side
• Screw terminals for Lo-Z side
• Small steel enclosure with mounting ears allows
easy mounting
• No wiring or soldering required
• May be used to provide a 600-ohm output from
a Bogen mixer/pre-amplifier
TL100 and TL600
• Provides balanced, isolated, 1:1 or 600-ohm input
for power amplifiers
• Transformer connections terminated in a keyed
nine-pin miniature plug
• Compact, plug-in design
• Internal mumetal shielding
Specifications subject to change without notice.
© 2002 Bogen Communications. Inc.
54-7775-02D 1102
Technical
Specifications
T725, T72510
Function:
Frequency Response:
Taps:
Dimensions:
Product Weight:
TL100, TL600
Function:
Frequency Response:
Hum Reduction:
Construction:
Dimensions:
Product Weight:
WMT1A
Function:
Frequency Response:
Sensitivity:
Output:
Dimensions:
Product Weight:
Allows 8-ohm speaker to connect to 70V or 25V amplifier outputs
T725 – 70 Hz to 10 kHz
T72510 – 50 Hz to 20 kHz
T725 – 4, 2, 1, 1/2, 1/4, and 1/8 watts
T72510 – 10, 5, 2-1/2, 1-1/4, and 5/8 watts
T725 – 2-1/2" W × 1-1/4" H × 1-3/8" D
T72510 – 3" W × 1-1/2" H × 1-1/2" D
T725 – 6 oz.
T72510 – 10 oz.
TL100 – Provides balanced 1:1 input impedance match and isolation
TL600 – Provides balanced 600-ohm input impedance match
and isolation
TL100 – 20 Hz to 15 kHz, ±2 dB;
TL600 – 20 Hz to 20 kHz, ±1 dB
Mumetal shielding
Cylindrical shape, keyed nine-pin miniature plug
1" Dia. × 1-1/4" D
1 oz.
Impedance matches inputs/outputs to a 600-ohm line
50 Hz to 20 kHz ±2 dB
Less than 0.1V across 600-ohm line required for full output power
from average amplifier; Maximum level +20 dBm
Approx. 1.73V output when connected across 25V output tap or
WMT1A Hi-Z output connection on a Bogen amplifier
2" W × 2-3/8" H × 1-1/4" D
4 oz.
Architect and
Engineer
Specifications
T725
WMT1A
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
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 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.
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.
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".
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 .
50 Spring Street, Ramsey, NJ 07446 USA
Tel. 201-934-8500 • Fax: 201-934-9832
www.bogen.com
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