Dynamic Precision DPA 6.4 Gebruikershandleiding - Pagina 4

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1. Technical Specifications

We congratulate you

The technical performance of this product is based on the company's unique electronics circuit

design to achieve the best possible musical reproduction.

This apparatus is electronically balanced and DC-coupled to optimise pulse response and low noise.

All Dynamic Precision products are wide bandwidth products (see page 10), so please observe the

following:

1. The internal power supply (ies) of power amplifiers or any other high power equipment normally

generate noise which «leaks» to the mains. This noise may be picked-up and amplified in pre-

amplifiers, CD players, etc. Therefore, it is advised to use Dynamic Precision mains filters

products interconnected by signal cables. If high power HF-transmitters are located in the area,

please use ferrite

terminals as possible. Ferrite should be used on the mains cords also,, and placed as close to

the chassis as possible.

2. To have a separate 16-Amperé line to the stereo equipment is an obvious advantage, preferably

with a separate ground wire. The reason for this is to avoid noise from domestic appliances.

3. Only shielded signal cables shall be used. Please keep the loudspeaker cables separated from

the signal- and mains cables. The signal cables for the left (L) and right (R) channels shall be

adjacent to each other, and preferably twisted and separated from mains cords.

1. If using an ungrounded mains line please check the polarity on the mains plug to reduce common

mode noise

. Turning on all apparatuses without connecting the signal cables. When this is done,

measure the AC-voltage

sticks in your hand and place the other one on the amplifier chassis. Turn the mains plug to the

position giving the lowest AC-voltage reading. Now, measure the voltage between the power

amplifier and the other apparatuses, and turn the other apparatuses mains plug to the position

giving the lowest AC-voltage reading. If you do not have an AC-voltmeter at your disposal, you can

listen to the system to find the correct polarity of the mains plug. Always begin with the power

amplifier and observe the treble for softness, sound and acoustical quality.

4. The power amplifier shall always be the device which is connected closest to the circuit breakers.

Please place the power amplifier on a non-magnetic, preferably an electrical non-conductive material

(wood or plastic), to avoid magnetic coupling to other components in the HI-FI system. However, steel

racks are not recommended.

It may be an advantage to install a mechanical insulation (shock absorbent wallboard or similar)

between the amplifier and the base although the circuit boards are rubber insulated within the

chassis.

This amplifier has a passive cooling system, requiring at least 15 cm of unused space on top of it.

The mains filter attenuates high frequency noise from 50 kHz - 50 MHz.

Ferrite is a magnetic material which attenuates high frequency noise from 0,5 MHz - 1 GHz.

Unequal capacitive coupling between the mains phases with reference to the chassis causes common mode

noise.

AC = Alternating Current.

DPA 6.4

on your choice of a

cores on all signal cables, and place these as close to the signal input

Ferrite must never be installed on loudspeaker cables.

(please use a digital AC voltmeter) by holding one of the measuring

GENERAL INFORMATION

Dynamic Precision DPA 6.4.

for all

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