Studio R X SERIES Bedienungsanleitung

OWNER’S MANUAL

01/2009 - REV#5 -EN.

MODELS X1,X3,XD,X5,X8 and X12.

X SERIES

EURO VERSION / REGULAR VERSION

www.studior.com.br

CH2 -Signal Processing

Signal Processing- CH1

5.600 WATTS RMS STEREO

Left Channel Signal -CH1

CH2 - Right Channel Signal

POWER ON

INTRODUCTION:

Congratulations for purchasing a STUDIO R X SERIES amplifier!

Our amplifiers are designed for many years of reliable operation at fixed or

movable facilities, under the strictest weather conditions.

The Studio R 3-year warranty (valid for Brazil. Check with your dealer for local warranty):

A regular warranty usually covers the free repair of a product every time this fails

during a certain initial period of its lifetime. This procedure, although free of

charge, solves the problem of those components which have aged prematurely on

the product in a very costly and burdensome way for the customer. Many hours

are lost with the inoperative system and its transportation.

Our concern with the warranty covering out products has never been that of

merely repair them promptly every time they present a fault, but also to prevent

faults for a long time during their lifetimes.

Studio R exclusive Burn-in:

Every Studio R amplifier is in-factory tested for three 3-hour cycles at full power

in a high-temperature oven. It is cooled and tested again at every interval. This

process is the only internationally proven way of finding components of a system

which could deteriorate prematurely within the equipment lifetime.

Our current fault rate is 2 out of every 1000 devices produced, with a 5-year

time of regular use between two faults.

Such kind of product really allows you to amortize your investments safely and

still make profit. This is why we say that your amplifier should operate almost

seamlessly, while keeping the sonic quality and performance characterizing the

Studio R products.

Although it is basically simple to operate, and having been designed to be

endurable, the improper use of this equipment can be dangerous!

FOR YOUR SAFETY, READ THE SECTIONS ON IMPORTANT

PRECAUTIONS ABOUT INPUT, OUTPUT, AND POWER

CONNECTIONS.

DANGER: THE OUTPUTS OF THIS AMPLIFIER CAN PRODUCE LETHAL VOLTAGE

LEVELS. NEVER MAKE CONNECTIONS WHILE THE DEVICE IS ON.

Wait for at least 1 minute after shutoff in order to carry out modifications in your connections.

 WARNING: THIS EQUIPMENT IS CAPABLE OF PRODUCING HIGH SOUND

PRESSURE LEVELS WHEN CONNECTED TO SPEAKERS AND PEAKER SETS.

The continued exposure to high sound pressure levels may cause the permanent loss of or a

reduction in the hearing. Always work with your ears protected by appropriate attenuators.

1- IMPORTANT PRECAUTIONS: Read before operating your amplifier:

1.1 Keep this manual for future inquiries.

1.2 Follow all instructions printed on the chassis for the device proper

operation.

1.3 Make sure the power line is compatible with your device voltage by

checking on its back panel.

1.4

Do not spill liquids in or on the apparatus. Do not operate the

apparatus exposed to rain or with some spilled liquid. Such practice is

the main reason for lethal accidents caused by electric discharges.

1.5 Do not block the air inlet or outlet. Do not operate in locations liable to

preventing the normal air flow.

1.6 Do not use this equipment in case any wire is stripped or fractured.

1.7 It is recommended to keep your amplifier frame always connected to a

grounding system; do this by means of the chassis bolt on the back

panel.

1.8 Do not activate the inputs with a power supply greater than the required

for the amplifier at maximum output.

1.9 Never connect the output of a channel back to the input of another

channel.

1.10 Do not connect the outputs in parallel with the outputs of any other

amplifier.

1.11 Do not connect the outputs of this equipment with any other power

supply, such as batteries or power line, either the equipment is ON or

OFF.

1.12 Do not connect any positive binding post to the ground.

1.13 Do not remove the covers. On removing them you will be exposed to

dangerous voltages. Inside the equipment there is no useful part for the

user. In case any problem occurs, call your nearest technical assistance.

Technical support and information:

website: www.studior.com.br E-mail: [email protected]

2-INSTALLATION AND OPERATION:

2.1 Unpacking

Open the transportation packing carefully and check for any apparent damage.

Prior to leaving the plant all Studio R amplifiers are fully tested and inspected and

ought to reach you in perfect conditions. Should any damage be found on them,

please notify the carrier immediately. Only a forwarding agent may request the

carrier to take actions concerning the damage occurred during the

transportation. Make sure to keep all packing for inspection. It might be a good

idea to keep the packing even when your amplifier has come in perfect conditions.

Whenever it has to be transported, use the original packing or rack standard

CASE, with frontal bars.

2.2 Assembling

Your amplifier is designed to be assembled on a standard 19” CASE, with 02

units/rack. For a movable use, in addition to 4 holes for assembly on the front

panel, also use the four holes located on the amplifier rear “grips”. The ventilation

on the apparatus rear portion and the front air outlet are essential for its proper

performance. This system provides enough cooling for all load rates, assuming

that the rack rear portion is open and unblocked. On racks with a closed rear

portion, it is vital to install additional fans on same in such a way to pressurize

them, ensuring a good air source for your amplifier internal fan.

2.3 Operating precautions.

Make sure the power line AC voltage is the appropriate for powering your X

Series amplifier. The warranty does not cover damages resulting from using the

device on the wrong voltage.

Prior to making any connection, both regarding input and output, make sure that

the power switch is off. Even though the amplifier is fitted with overload

protection as well as a Soft Start (silent activation), it is recommendable to

always keep the gain controls low when turning it on. This operation will prevent

any possible damages to the speakers should there be an excess signal on the

inputs. Seek to acquire cables, connectors, and speaker of good quality and

appropriate capacity. Check the wiring capacity table (Section 2.5) to determine

the appropriate measures for different impedances and lengths of cables.

Most of the systems intermittences and faults

occur due to defective wires and connectors.

Use quality connectors, wires, and welding technique to ensure seamless

operations.

BALANCED UNBALANCED

2.4 Connecting the inputs

The input/split connections are performed by

means of two 3-pin, XLR-type and two

“P10”- type connectors, located on the rear

panel. The connection orientation is:

Pin 1 - Ground.

Pin 2 – Positive (phase).

Pin 3 – Negative (counter-phase).

Figures bellow shows the basic diagram for the rear connections using binding posts or

Speakon. You can connect the mixer L channel to the amp input 1, and the R channel to

the amplifier input 2, for example. The same precaution should be taken for connecting

the speakers. The speakers located on the right side of the stage should be connected to

the right channel (OUTPUT 2), and those of the other side on the left channel (OUTPUT 1).

The speaker polarity is very important. The speaker positive should be connected to the

amplifier + positive and the speaker negative to the amplifier - negative connection.

VERY IMPORTANT:

You can connect up to four 8 Ohm speakers per channel of an X Series amplifier!

*Always connect the speaker positive (+) to speakon’s pin 1+ or 2+ and the negative to pin 1- or 2-

(internally, both pins 1+ and 2+ are connected in parallel. Pins 1- and 2- are also internally in parallel).

BALANCED UNBALANCED

I I I

1 3 2

I I I

1 1 2

The X SERIES amplifiers contain

balanced inputs and can be powered

either by balanced lines or not,

according to the figures.

2.5 Connecting the outputs:

The speakers should be connected to the amplifiers by wires which, in the first

place, are capable of the minimum current necessary for the work.

Wire minimum gauge in mm2

As we can see on the table below, in some instances, using only one wire to

convey the signal to the 4 speakers is complicated, as a quite thick wire is

required. The suggestion is to use one wire for each two speakers.

In addition to the current capacity of the speaker connecting wires, it is also

important to know the distance between the speakers and the amplifier. Even

with the proper gauge wire, we may have losses of power and damping factor on

long-distance connections.

On the table below, see the power loss in percentage and, in parentheses, the

resulting Damping Factor.

The drop in the Damping Factor occurs on any amplifier

by simply existing a wire between same and the speaker.

We can see in bold letters that the losses, in long distances, exceed 10% and that the damping

factor also drops below 10. For example, a 12% loss on a 3000-W amplifier causes a 360 W on

the wires, and the speakers receives only 2640 W.

Length of the

wire pair (m)

Gauge

(mm2)

Power loss on the wires

for each speaker

Power loss on the wires

for every 2 speakers

5 1 2.2% (45)

5 1.5 1.5% (67)

3% (34)

5 2.0 1% (90)

2.2% (45)

5 2.5 0.85% (114)

1.75% (57)

5 3 0.7% (140)

1.4% (66)

10 1 4.4% (23)

10 1.5 3% (34) 6% (16)

10 2.0 2% (46)

4.4% (25)

10 2.5 1.7% (57)

3.5% (28)

10 3 1.4% (66)

2.8% (33)

20 1 8.8% (11)

20 1.5 6.0% (16) 12% (8.3)

20 2.0 4% (22)

8.8% (11)

20 2.5 3.4% (28)

7% (10)

20 3 2.8% (33) 6% (16)

X1 X3 e XD X5 X8 X12

One wire for each speaker 1mm21,5mm22,5mm23 or 4mm24mm2

One wire for each two speakers 1,5mm22,5mm25mm2

One wire for the four speakers 3mm25mm2

IMPORTANT: EXCLUSIVE 4X4SYSTEM _________________________________________

The Studio R amplifiers allows 4 speakers to be used on each channel, causing

the amplifier to supply its maximum power on such conditions.

Actually, with 4 speakers per channel we have around 1.5 Ohm of actual load, not

the theoretical 2 Ohm. Other amps in the market are designed for a minimum

actual load of 2 Ohm and, thereby, do not operate properly with above 3 speakers

per channel. They play, but heat too much, activating the protection circuits and

dropping the power to values well below the specified minimum power.

When we use amplifiers designed for 2 Ohm, we are compelled to using maximum

3 speakers per channel, if we want to use their power to the fullest extent.

THIS DOES NOT OCCUR WITH THE STUDIO R. THAT’S ONE OF THE

REASONS WHY A STUDIO R ALWAYS PLAY LOUDER!

2.5.1 BINDING POSTS FOR THE SPEAKER WIRES.

We should use wires with “banana” or “fork” connectors, the second (fork) being

more reliable in the long run (the banana connector gets loose in a short time).

The speaker positive should be connected, and the binding post with red lug

regarded as “hot”, which should never be connected directly to the ground. The

other side of the speaker should be connected to the black lug.

As we see, there is a pair of lugs on each amplifier output channel.

Never connect any wire directly between the left channel

lugs and those of the right channel and vice-versa.

Floating ground and Transient Supressor: Your amplifier circuit ground is insulated from the frame.

This allows various safety configurations to be made for the system grounding. For more information,

refer to the chapter 6.1 about the Transient Supressor bar and problems related to lightning systems.

SPEAKER OUTPUTS: This is where the speakers should be connected to (using Speakon or binding

posts). Connect the amplifier positive lug to the speaker positive and the amplifier negative lug to the

speaker negative. Output 1should be connected to the system left side speakers, while output 2

should be connected to the system right side on stereo systems.

2.6 Turning your X Series power on:

Your Studio R power cable has 3 wires and no connector. The user should check

the consumption table and, according to the intended use of his/her equipment,

purchase the male and female connector of your preference, with the appropriate

capacity for the length, power consumption and use. The power cable is available

in two different standards:

International: Brown=Hot, Blue=Neutral and Green=Ground.

American: Black=Fase, White=Neutral and Green=Ground.

The X Series amplifiers are designed to operate on one voltage only, selected in

factory according to user’s preference (available in 100, 115V, 127, 220, 230 or

240V - 50 / 60Hz) and indicated on the label attached to the cable or rear panel.

Under full power, with both channels set to 1.5 Ohm (4 speakers per channel),

your Studio R X Series amplifier may “pull” a considerable current. See on the

table below what is the minimum recommendable gauge to use on your AC power

installation according to the number of speakers to use and the type of music.

NOTE: THE TABLE VALUES WERE CALCULATED FOR 230 V, WITH A SETTING

BETTER THAN 5% (WHICH IS A SATISFACTORY SETTING), ON AN INSTALLATION

WITH NO MORE THAN 50 METERS BETWEEN THE POWER FRAME AND THE

AMPLIFIER.

When longer distance connections are required, such as for example 100 meters

(double the distance), we should use double the gauge as well.

In case of a sound system leasing company, where music is generally reproduced,

we should always size the AC system for the PINK NOISE rate:

Wire gauges for 230V – 50/60Hz (multiply for 2 in 100 to 127V versions):

PINK NOISE X1 X3 e XD

X8 X12

4 speakers per channel 1,5mm23mm25mm28mm22 x 5mm2

2 speakers per channel 1mm22,5mm24mm26mm28mm2

1 speaker per channel 1mm21,5mm23mm25mm26mm2

ROCK WITH

COMPRESSION

X1 X3 e XD

X12

4 speakers per channel

1mm22,5mm2

5mm2

8mm22 x 5mm2

2 speakers per channel

1mm22mm2

4mm2

6mm28mm2

1 speaker per channel

1mm21,5mm2

3mm2

5mm26mm2

AMBIENT MUSIC

X1 X3 e XD

X8 X12

4 speakers per channel

1mm22mm2

4mm2

6mm28mm2

2 speakers per channel

1mm21,5mm2

3mm2

5mm26mm2

1 speaker per channel 0,75mm21,5mm22,5mm24mm25mm2

 All STUDIO R X Series amplifiers come with power cable. The user should

check the consumption table and, according to the intended use of his/her

equipment, purchase the male and female connector with the appropriate

capacity for the length.

2.7 Stereo Operation:

For stereo operation, place an audio signal on channel 1 input, with an amplitude

consistent with the amplifier sensitivity, (selectable according to the SDS table),

in order to produce a signal output on channel 1 output lugs, while a signal on the

2 will produce a signal output on 2.

SDS table (gain/sensitivity adjust):

Sensitivity Euro Version Regular Version

DS (centered gain - “DS” point) 26dB / 20x 1.55V (X1=2V, X12=1,8V)

Maximum (gain at 10 position) 32dB / 40x 0.775V (X1=1V, X12=0,9V)

IMPORTANT: The 1.55V level (in regular versions) is equal to -6dBm or -6 dBU. You must

always use this level, instead of 0.775V, when using digital processors (2V for the X1). In other

cases, adjust according to your system sensitivity.

Both channels operate on a completely independent way, with their respective

input attenuators controlling the total levels. In order to distribute the signals to

other amplifiers we must use the XLR male outputs which are just below the

inputs.

2.8 Parallel operation:

Both channels, on the parallel mode, can be fed by a single input signal source

without the need for any bridge. The signal applied on the channel 1 “XLR” will

activate both sides with the signal on phase. The output connections are made on

the same way as the stereo mode via the channel and black lugs. Both input

attenuators remain active, allowing for different levels for the speakers of each

channel. The power specifications continue the same as in the stereo operating

mode.

Attention: With the input switch on the parallel mode we cannot feed the

amplifier inputs with distinct signals, as they will be short-circuited.

GAIN/SENSIB:

Input signal attenuators.

The controls operate separately

even on the

arallel o

eration.

Mode selector

STEREO or PARALLEL.

INPUT/SPLIT:

Balanced XLR and P10

inputs.

Power switch lever:

Turns the amplifier on and off.

2.9 Input signal attenuators (GAIN/SENSIB).

The rotary controls located on the back panel of your Studio R, one for each

channel, allow the input sensitivity to be individually set with a reasonable

resolution. On the scale recorded on the panel from 0 to 10, the amplifier input

signal level on the stereo and parallel modes can be individually modified. When

fully turned on the clockwise direction, they will allow a signal on the input

sensitivity rate 32dB/40x (All Euro Version) or 0,775V (X3 to X8), 1V (X1) and

0,9V (X12) to provide a maximum power on a 2 or 1.5-ohm load. When at the

center click point (DS), sensitivity rate will be 26dB/20x (All Euro Version) or 1,55V

(X3 to X8), 2V (X1) and 1,8V (X12).

IMPORTANT: As the attenuators are independent, the channels can be set

with different signal levels. This occurs when each one of the channels are

being used for different environments or on different frequency ranges such as

bass and treble. (The speakers always withstand more power than the drivers.

Be careful with the settings!).

VERY IMPORTANT 

THE INPUT SENSITIVITY CONTROLS OF THE X SERIES AMPLIFIERS ARE NOT

POWER SETTINGS (A HEAVY-DUTY LINE EXCLUSIVENESS!).

The regular setting of these will never be able to protect delicate speakers. In

these instances, an appropriate external limiter should be used.

3 - CONTROLS

3.1 Power Switch:

The ON/OFF switch of the Studio R X Series amplifiers are located on the rear

panel. In normal use, when the switch is turned to right, the amplifier is on and

one blue LEDs will light on the front panel.

ATTENTION 

Prior to turning your amplifier on, make sure the power line voltage is the

same as the apparatus.

This is statistically the only way of damaging a Studio R. In addition, it is regarded

as a misuse and is not covered by the warranty.

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