SMc Audio SM-500SM-500 manual Rear Panel

8 Rear Panel

N.POWER CORD SOCKET - Connect the included power cord to a properly wired AC electrical outlet in accordance with the voltage and frequency ratings specified on the rear panel of your amplifier.

O.MAIN FUSE - Protects the amplifier from electrical faults. Replace a blown fuse ONLY with a fuse of the type/rating specified on the rear panel of your amplifier to protect your amplifier and maintain warranty coverage. Carry spare fuses!

P.STEREO / MONO (BRIDGE) - Selects the Mode of Operation for the SM-500 power amplifiers. IMPORTANT: Understanding the function of this small switch is essential! Each mode uses different controls and jacks that require the SM-500 to be turned OFF while you move the switch and reconnect:

STEREO MODE—The power amplifiers operate separately as left and right channels with independent •Master Volumes {K & N}, •Speaker Outputs {Q & R} and •Effects Loop Returns {U}.

MONO (BRIDGE) MODE—The power amplifiers operate together as a mono channel with one •Master Volume {K}, •Speaker Output {S} and •Effects Loop Return {U}.

Q/R.STEREO MODE SPEAKER OUTPUTS - The SM-500 features both 1/4" phone and Speakon® speaker output jacks in Stereo Mode to provide flexibility in making your speaker connections. Use the Speakon® jacks whenever possible to take advantage of their superior efficiency and locking connectors. All three jacks on each side {Q & R} are full range and wired in parallel. Read Speaker Guidelines on the next page before connecting speakers.

S.MONO (BRIDGE) MODE SPEAKER OUTPUT - One Speakon® speaker output jack is available in Mono (Bridge) Mode. Read Speaker Guidelines on the next page before connecting speakers.

T.SPEAKER FUSES - Protects your speakers from electrical and connection faults. Replace a blown fuse

ONLY with a fuse of the type/rating specified on the rear panel of your amplifier to protect your equipment and maintain warranty coverage. Carry spare fuses!

U.EFFECTS LOOP - Multi-purpose jacks: Effects Send provides a preamp output that includes onboard tone shaping. Effects Send level is controlled by Gain {B}. The Effects Return jacks provide power amp inputs that can be blended in any ratio with the onboard preamp signal using Effects Blend {J}.

The Effects Loop circuit is on a side chain, isolated from the main circuit to provide the full sound of your instrument AND the diversity of your external effects. The Effects Loop is also located after the gain stages in the preamp signal path to bypass the noise generated when effects are connected inline before the preamp.

Use only shielded instrument cable with standard 1/4" mono phone plugs with the Effects Loop jacks. You may need an adapter in certain situations, such as, when a stereo effects device only has one stereo output (use a stereo-to-dual-mono adapter).

1.Effects Loop - Connect Effects Send to your effects input, then the effects output(s) to either the Mono Return or Stereo Return jacks according to the SM-500’s Mode of Operation {P}. If using mono effects in Stereo Mode, the Mono Return can be used. NOTE: Set the wet/dry control on your effects units fully to WET to prevent phasing problems. Set the input level on external effects to +4dB, (try 0dB if the unit is being overdriven).

2.Multiple Amplifiers - For additional output, you can connect an auxiliary power amp to your SM-500’s Effects Send output (Gain on your SM-500 will affect the volume levels of both amplifiers). NOTE: If you wish to use an SWR® amp as an auxiliary power amp, use Mono Effects Return as the input and turn the Effects Blend control to the maximum WET position.

✧ s w r s o u n d . c o m ✧