4 Pi PLUS.2 - Loudspeaker ELAC - Free user manual and instructions

Brand	ELAC
Model	4 Pi PLUS.2
Type	Bookshelf loudspeaker
Frequency Response	50 Hz - 20 kHz
Sensitivity	87 dB (2.83V/1m)
Impedance	6 ohms
Power Handling (RMS)	80 W
Peak Power Handling	120 W
Driver Configuration	1-inch soft dome tweeter, 4-inch polypropylene woofer
Crossover Frequency	2.5 kHz
Dimensions (W x H x D)	7.5 x 12.2 x 9.1 inches (190 x 310 x 230 mm)
Weight	10.6 lbs (4.8 kg) each
Enclosure Type	Bass-reflex with front-firing port
Input Type	Single-wire binding posts
Grille	Removable magnetic grille
Finish	Black ash vinyl or walnut vinyl
Recommended Amplifier Power	20 - 120 W per channel
Placement	Bookshelf or stand-mounted
Break-in Period	50 hours recommended for optimal performance
Maintenance	Wipe with a dry, soft cloth; avoid solvents
Safety	Place on a stable surface; ensure adequate ventilation
Spare Parts	Contact dealer for replacement drivers or grilles

Frequently Asked Questions - 4 Pi PLUS.2 ELAC

What is the recommended amplifier power for the 4 Pi PLUS.2?

The recommended amplifier power is 20-120 watts per channel into 6 ohms.

Can I use the 4 Pi PLUS.2 as a center channel speaker?

While designed as a bookshelf speaker, it can be used as a center if placed horizontally, but optimal dispersion is achieved in vertical orientation.

Is the grille removable?

Yes, the grille is magnetic and can be easily removed for cleaning or to expose the drivers.

What type of speaker wire should I use?

Use high-quality 16-14 gauge speaker wire with banana plugs or bare wire. Ensure proper polarity (+/-).

How do I break in the speakers?

Play them at moderate volume for approximately 50 hours with a variety of music to allow the drivers to reach optimal performance.

Can the 4 Pi PLUS.2 be bi-wired?

No, the speakers have a single pair of binding posts for standard single-wire connection.

What is the warranty for ELAC speakers?

ELAC offers a limited warranty of 5 years for speakers. Contact your dealer for details.

How should I clean the speakers?

Wipe the cabinet with a dry, soft cloth. Do not use abrasives or solvents. For the grille, gently vacuum or use a lint roller.

Where can I find replacement parts?

Contact an authorized ELAC dealer or distributor for replacement drivers, grilles, or other parts.

What is the frequency response of the 4 Pi PLUS.2?

The frequency response is 50 Hz to 20 kHz, with a sensitivity of 87 dB (2.83V/1m).

USER MANUAL 4 Pi PLUS.2 ELAC

Operating Instructions

4 PI PLUS.2

Add-On Tweeter

Congratulations on the purchase of your ELAC loudspeaker that has been designed in accordance with strict quality and environmental requirements.

Please note the enclosed safety instructions. Please follow the instructions and keep the safety instructions. Heed all warnings on the appliance and in the manual.

This manual will help you make the most of your home theatre system. We recommend keeping this manual in a safe place for future reference.

Inhaltsverzeichnis

Contents

Seite 2 von 12

Deutsch	Funktion	3
	Aufstellung	3
	Impedanz	3
	Anschlusshinweise	4
	Pegelanpassung	5
	Frequenzanpassung	6
	Technische Daten	11
English	Function	7
	Installation	7
	Impedance	7
	Connection of the loudspeaker	8
	Level adjustment	9
	Frequency adjustment	10
	Specifications	11

Funktion

The ELAC 4 PI PLUS.2 is an add-on tweeter that is based on the technology of the omni directional ribbon tweeter. This patented tweeter received its name from the physical definition for the maximum solid angle (= 4 Pi).

The ELAC 4 PI PLUS.2 can be connected to main speakers. The 4 PI PLUS.2 offers sound that comes off easily. This add-on tweeter provides spacious sound for a broad listening area and can be used for stereo applications and for home cinema. Even at a value of more than 50 kHz, there will be no resonances.

The ELAC 4 PI PLUS.2 consists of an internal network (it is called crossover network) with filters and protections. This add-on tweeter can be easily connected to main speakers.

The crossover frequency and levels can be adjusted by means of a switch. Therefore, it can be adjusted to meet your individual demands.

Installation

In most cases, the ELAC 4 PI PLUS.2 is positioned on the top of floor-standing loudspeakers. In some cases, interesting results can be achieved, if the 4 PI PLUS.2 is placed behind or next to a main speaker. To ensure perfect omni directional radiation, the distance between the add-on tweeter and reflecting walls should be 50 cm (minimum).

Impedance

The load of the amplifier is increased when two loudspeakers (ELAC 4 PI PLUS.2 and main speakers) are in operation. However, in practice, the results of this are not worth mentioning because it only affects the trebles. It is just important to ensure, that the amplifier is suitable for 4 ohms, regardless whether the main speakers are for 8 or 6 ohms.

There are 2 loudspeaker terminals with cables on the rear of this add-on tweeter. This enables the connection to main speakers. Connect the 4 PI PLUS.2 in parallel to the main speaker. Connect the “+” pole of the add-on tweeter to the "+" pole of the main speaker. Do the same with the negative pole “-” (see figure A).

If the main speaker is provided with a bi-wiring terminal with 4 input sockets, always 2 input sockets are connected in parallel when cable suspension bridges are used. In this case, the cable of the 4 PI PLUS.2 can be connected to the other pair of input sockets (see figure B).

If the main speaker is operating in bi-wiring mode, (i. e. two cable pairs run from the amplifier, cable suspension bridges are opened) the 4 PI PLUS.2 must be connected to the tweeter unit of the main speaker (see figure C).

It is also possible to connect the 4 PI PLUS.2 directly to the amplifier.

If your amplifier offers 2 loudspeaker terminals, the second terminal can be used for the ELAC 4 PI PLUS.2. In this case, you have to adjust the selector switch for loudspeakers on your amplifier (e.g. speakers A + B). This way, the 4 PI PLUS.2 can be easily switched on/off.

Cables with a length of approx. 4 meters should provide a cross-section of 2 x 1.5 qmm. Cables with increased lengths should provide a cross-section of 2 x 2.5 qmm. For low-resistance main speakers, it is recommended to use cables with a cross-section of 2 x 4 qmm.

It is recommended, to use low-inductance cables. Cables with a low-inductance structure provide several tight, cross-wise interwined conductors and return conductors. The ELAC 4 PI PLUS.2 should be used with this certain type of cable when long cable lines are required.

The sensitivity of the ELAC 4 PI PLUS.2 can be adjusted by means of the selector switch (1). The sensitivity should be "0" when used with main speakers that provide approx. 88 dB/2.8V/m.

If the values of your loudspeakers are below this, (and to decrease the effect of the ELAC 4 PI PLUS.2), the selector switch (1) can be adjusted in the appropriate way (-2 dB or -4 dB) in order to reduce the levels. If the sound of the 4 PI PLUS.2 is too low at „0“, compared to the sound of the main speakers, the level can be increased (+2 dB oder +4 dB) by adjusting the selector switch (1). The best result will be determined by listening.

Bi-amping

A second stereo amplifier (starting with 2 x 20 W) with adjusters for levels and volume enables the individual adjustment of the 4 PI PLUS.2 according to your demands. It also enables the perfect adjustment with main speakers that provide a sensitivity of 92 dB/2.8V/m.

The volume should not be too loud for presetting.

The crossover frequency of the add-on tweeter ELAC 4 PI PLUS.2 can be adjusted by means of a selector switch (2). This enables maximum flexibility in regard of the adjustment of the main speakers and also in regard of your individual taste. The following figure shows the frequency responses of the ELAC 4 PI PLUS.2, depending on the position of the selector switch (2). The mid-position of the switch is "12 kHz". This is an appropriate position for other possible adjustments. If the spacious sound effect of the 4 PI PLUS.2 shall be increased, the switch should be turned to "10 kHz". The adjustment of the position "15 kHz" enables the 4 PI PLUS.2 to reproduce only the highest frequencies. This way, the room is excited by only these frequencies and there is a low effect of spaciousness.