No, you can not bridge a mono amp because there is nothing to "bridge" to — whatever impedance load you present to amplifier is the actual load that it sees. This differs from a multichannel amp in that when you bridge two channels together, you halve the load presented to them (for example, 2 4-ohm woofers wired in parallel and bridged to a stereo amplifier is "seen" as a 1-ohm load to that amp).

Bridge/Mono mode allows a higher load (usually around 2ohms) to be handled more effectively by the amp. It puts the amplifier into a "push, pull" configuration, utilizing both sides of the amp into one single output. Our real answer here is that you should only run in bridged mode when you simply have no other choice. You should always choose the right amp for the load being placed on it.

Connect the speaker leads across the two red binding posts, using channel one binding post as the + (hot) connection or on CE's with Speakons across pins 1+ and 2+ on the channel one output.

Because mono amps tend to be Class D amplifiers, they are a good choice for powering subwoofers — Class D amplifiers have a high power-to-heat ratio and excellent efficiency, which are exactly what you want when dealing with power-hungry low frequency signals. Most mono amplifiers are designed to run at 2 ohms; some are even 1-ohm stable. Multichannel amplifiers, on the other hand, are typically designed to work with a 4-ohm load.

Generally, the deciding factor to this dilemma is the total speaker load impedance you wish to drive. With Micro-Tech and Macro-Tech amplifiers you would want to use Bridge Mono to get the most power available when driving 8 or 4-ohm loads (one or two 8 ohm speakers). With a Power-Tech or Com-Tech amplifier you need to stay at 8 ohms or greater. Parallel Mono can be used when driving lower impedance loads. A one-ohm load can be driven Parallel Mono with a Micro-Tech or Macro-Tech.

Since we have come out with the Class D line of amplifiers, we have had an abundance of technical calls inquiring about how to bridge them. It isn't possible to bridge any mono-block Class D amplifiers. All of these models are Mono amplifiers, meaning they only have one channel. Then why does a single channel amp have two terminals (L and R)? We put both terminals there for your convenience. If you have two speakers, it is hard to attach two speaker leads under one terminal screw.

Because mono amps tend to be Class D amplifiers, they are a good choice for powering subwoofers — Class D amplifiers have a high power-to-heat ratio and excellent efficiency, which are exactly what you want when dealing with power-hungry low frequency signals. Most mono amplifiers are designed to run at 2 ohms; some are even 1-ohm stable. Multichannel amplifiers, on the other hand, are typically designed to work with a 4-ohm load.

Note: For those amplifiers with IOC (Input-Output Comparator) the channel two IOC indicator will illuminate when the unit is operated in Parallel-Mono. Note: CE Contractor Series (CH/CL Series) CP660, D Series and K Series amplifiers cannot operate in a Parallel-Mono mode.

Step 4 Attach the speaker leads to the red binding post (1+ and 2+). There is no connection to the black posts. Step 5 Turn on the amp and adjust the volume using the channel A level control knob (Channel B will no longer respond).

The benefits of hooking up two subs to a mono amplifier are the same as hooking up any other number of subs to a mono amp: you can push the subs with more power at lower impedances. Because lower frequencies are less directional (i.e. it's more difficult for your ears to determine where low frequencies come from than highs), bass is often transmitted in mono. Mono here refers to a single channel (as opposed to stereo, or two channels), not one speaker.

Yes. By building a summing Y-cable (check out Why Not Wye) and connecting it to the MAIN OUTPUTS a mono signal may be obtained.

The minimum rated impedance for an amplifier in bridge-mono is 8 ohms. A 4 ohm load is possible as this represents a 2 ohm per channel equivalent. Two ohm load precautions still apply, as it would with any amplifier, so supplemental cooling may be found necessary. It will also be important to watch for any impedance transients that arise from the speakers in use. Four ohm bridge-mono loading is the absolute minimum across the entire audio range (20Hz - 20kHz.)

A well-made stereo amplifier that is stable to 2 ohms should be able to handle up to four 4-ohm woofers (two subwoofers wired in parallel to each channel). If you want to bridge a 2-channel amp to one channel, it's best to only connect one 4-ohm woofer. The minimum impedance for the bridged (mono) output of a 2-channel amp is usually 4 ohms. Mono subwoofer amps, like the Kenwood KAC-819, are stable down to 2 ohms, allowing you to hook up two 4-ohm subs in parallel.

Yes. The CP 64 has a Zone 1 Mono Switch located internally, directly in front of the Priority Assign switch.

Why does the volume control on my MOON P-5 preamplifier make faint mechanical clicking sounds when I change the setting ?.

Either set will provide a summed LEFT plus RIGHT mono signal. You can use both LEFT and RIGHT outputs simultaneously when needed, (like when you want to run two channels on a power amplifier without connecting a Y-cord.) Yes. The internal Program Priority Release Time control, located near the Line 2 and Line 3 RCA input connectors, can be rotated to change the interval from five to twenty seconds. Clockwise rotation increases the release time interval.