Installation & Operation. Plinius SB-301 Power Amplifier

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Installation & Operation. Plinius SB-301 Power Amplifier | Manualzz

Installation & Operation

WARNING: RISK OF ELECTRIC SHOCK. TERMINALS MARKED WITH

SHOULD BE CONSIDERED HAZARDOUS LIVE AT ALL TIMES.

This amplifier operates at hazardous voltage levels. We recommend that any work requiring removal of the lid be referred to a suitably qualified and experienced service technician. DO NOT place this amplifier in any position where liquids or any foreign material may accidentally enter it.

PLEASE READ & UNDERSTAND THE PRECAUTIONS WITHIN THIS MANUAL

FOR PLACEMENT & OPERATION OF THIS PRODUCT.

CONNECTIONS

Connections to your Plinius SB-301 MKII should be made in the same order as they are listed in this section. DO NOT attempt to connect your Plinius SB-301 MKII until you have read and fully understood these instructions. Although these instructions refer to the connection of a preamplifi er, the SB-301 MKII can also be safely installed into multimedia systems by following the same installation guidelines. Should you require any further assistance, please contact your Plinius dealer.

IMPORTANT: DO NOT POWER UP YOUR AMPLIFIER UNTIL YOU HAVE

CONNECTED YOUR INPUT/OUTPUTS CORRECTLY FOR YOUR SYSTEM.

PREAMPLIFER INPUTS

Connect your preamplifier to the input of the Plinius SB-301 MKII using suitable singleended RCA or Balanced XLR interconnect cables only. If using single-ended RCA inputs, connect your Preamplifier to the RCA inputs on the back of the Plinius SB-

301 MKII. Make sure you connect the red coded cable to the red RIGHT RCA input, and the black (or white) cable to the black LEFT RCA input. Also make sure the RCA connectors are a snug fit and are inserted all the way in.

PREAMPLIFIER SB-301 MKII INPUTS

For XLR input connection, make sure you connect the RIGHT XLR input and LEFT

XLR inputs to the right and left outputs from your Preamplifier respectively. Use the Amplifi er Confi guration Selector switch to select RCA STEREO if you are using unbalanced RCA inputs or to select XLR STEREO if you are using balanced XLR inputs.

NOTE: DO NOT connect XLR and RCA at the same time, use only one or the other.

POWER AMPLIFIER 11

LOUDSPEAKER OUTPUTS

The connection of your loudspeakers to the output posts of the Plinius SB-301 MKII must be made by an ‘instructed person’ or by ready made loudspeaker cables only.

Connect your left loudspeaker (ie. the one on your left when seated in your normal listening position) to the left output terminals, ensuring that the red positive (+) terminal on the amplifi er is connected to the red positive (+) terminal on your loudspeaker. Do the same with the black or negative (-) terminals. Repeat this process for the right outputs.

RIGHT SPEAKER + RIGHT – OUTPUTS – LEFT + LEFT SPEAKER

TERMINATION QUALITY

Quality of the connections must be examined to ensure that high performance trouble free operation is enjoyed. Check that the connections are tight but do not over tighten. If bare wires are used make sure that no loose strands of wire short cross the other terminals or the amplifier chassis. When using plugs such as bananas, be sure to use good quality plugs with a firm fit.

BI-WIRING

Bi-wiring uses two pairs of loudspeaker cables for each channel loudspeaker. You will notice that the rear panel of your Plinius SB-301 MKII has two pairs of output terminals for this purpose. Be sure to follow correct practises for stereo and mono configurations when using bi-wiring.

PHASING (OR POLARITY)

It is important to achieve good stereo imaging in your listening room. By observing the wiring instructions above, each power amplifier/loudspeaker combination should be in phase. If you experience poor stereo image and/or a lack of bass, check that the loudspeaker wiring has been connected correctly. We recommend that you use one of the easily obtainable ‘test discs’ to help you ensure both phasing and channel orientation are correct. If in doubt, consult your Plinius dealer for advice.

To achieve a sound performance that is correctly aligned to your room, make sure all of the leads carrying signals for the right channel loudspeaker are connected to the right input to the amplifier from your preamplifier or CD player etc. Signals for the left channel should be wired in a similar fashion.

12 PLINIUS SB-301 MKII

CONNECTING THE MAINS SUPPLY

Firstly, check that the mains supply voltage printed on the rear of this amplifier is similar to the mains supply voltage in your area. If in doubt, please consult your

Plinius dealer. Mains supply power connection is via the plug-in lead supplied with your Plinius SB-301 MKII.

Check the wall outlet is switched OFF, then connect the local mains plug end of the lead to the wall outlet. Check the SB-301 MKII is switched OFF, and connect the IEC end of the cable to the IEC socket at the back of the SB-301 MKII. With the cord fully connected, switch the wall outlet ON.

Now that your Plinius SB-301 MKII is configured correctly, switch the power switch on the rear panel to ON. The display LED will cycle in brightness for approximately ten seconds as the internal circuitry stabilises. Use the MUTE switch on the front panel to take the unit out of MUTE and you can now enjoy your new Plinius SB-301 MKII Power Amplifier.

NOTE: This unit must be connected to a mains socket outlet with a protective earthing connection. The wall outlet socket or SB-301 MKII mains switch must be accessible at all times in case of emergency.

WARM-UP PERIOD

You will find that the Plinius SB-301 MKII will become noticeably ‘purer’ in sound after being on for a period of time. We recommend waiting at least 24 hours before expecting the best quality of sound reproduction from your amplifier.

POWER AMPLIFIER 13

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