P.A. Amplified

Although theses technologies still exists, they are usually seen in older installations. They involved using one or more P.A. (Public Address) Amplifiers and standard or transformed speakers and horns. The P.A. Amplifiers usually had 4, 8 and 16 ohm outputs for "Impedance Balanced" speakers and 25/70 Volt outputs for "Constant Voltage" speakers with transformers attached.

Impedance Balanced systems were the worst. The idea was that no matter how many 8 Ohm speakers you used, the combined load could not be more than 4 ohms or not less than 16 ohms when presented at the amplifier. This often involved elaborate "series-parallel" wiring schemes. Normally, this technology would not be used in new installations except for applications such as airports or sports arenas. However, if you have an existing paging system that uses this technology, we have replacement speakers, horns and amplifiers to replace failed components.

Constant Voltage technology was an improvement over Impedance Balancing because it eliminated the need for elaborate wiring. Each speaker or horn was daisy-chained. Each speaker or horn had a transformer attached to it and a technician would normally select one of several lugs to attach the wire to, depending on how loud the speaker needed to be. The selections were measured in watts and used solder type lugs.

Many techs didn't understand the relationship between watts (power) and sound levels (decibels). Then, there was the likelihood of them owning a soldering guns, having a spool of solder and then wanting to drag a 100 foot extension cord up a ladder to solder to connection.


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7.5Watt Paging Speaker w/ Transformer
BG-SPT5A 7.5Watt Paging Speaker w/ Transformer (Read more)
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7W Horn
BG-HS7EZ - Bogen horn speaker - Maximum speaker power capacity of 7.5W - Single-tap design - Stepped attenuator volume control - For 70V systems - Tilt & swivel base for easy aiming - All metal... (Read more)
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8 Ceiling Speaker OFF-WHITE"
BG-CS1EZ - Bogen pre-assembled 1-watt single-tap ceiling speaker designed for use with 70V amplifier systems - 1W single-tap design - Screw terminal connections for fast installation - Works with... (Read more)
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BG-GS250 - Bogen gold series amplifier - 4 Dedicated MIC inputs - 1 Selectable MIC/TEL input - 1 Selectable MIC/AUX input - 1 Dedicated AUX input - 4-Ohm direct coupled output - 8-Ohm, 25V, 25VCT,... (Read more)
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Bogen 10 Watt Attenuator - Single Gang
BG-AT10A Bogen 10 Watt Attenuator (single gang size) (Read more)
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Bogen 100 Watt Amp
BG-TPU100B - Bogen 100 watt wall-mounted telephone paging amplifier - Inputs for 600-ohm balanced telephone line, LO-Z balanced microphone, and background music - Integral automatic level control... (Read more)
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Bogen 15 Watt Amplified Horn
BG-AH15A Bogen 15 watt Amplified Horn Power supply is a special order (because it depends on how many speakers they will use) - tech support recommended the BG-SPS2425 and this will support 2... (Read more)
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Bogen 15 Watt Amplifier
BG-TPU15A - Bogen 15 watt telephone paging amplifier - TEL input has Automatic Level Control~~(ALC) for constant page announcement~~level - Separate volume controls for mic, paging, background music,... (Read more)
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Bogen 15 Watt Horn
BG-HS15EZ - Bogen 15-watt single-tap speaker - 7.5-, 15-, and 30-watt models - Single-tap design - Stepped attenuator volume control - Screw terminal connections for fast installation - Designed for... (Read more)
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Bogen 2 PACK 1X2 Drop In Ceiling Speaker
BG-CSD1X2 Bogen 2 PACK 1X2 Drop In Ceiling Speaker SOLD IN PACKS OF TWO ONLY - no way to break cases from Bogen. (Read more)
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