Adam Tensor Epsilon Bedienungsanleitung

Tensor

Epsilon

Semi-active Version

Operation Manual / Bedienungsanleitung

English / deutsch

Please read the following safety instructions before setting up your system.

Keep the instructions for further reference. Please heed the warnings and

follow the instructions.

Caution: To reduce the risk of electric shock, do not open the

loudspeaker. There are no user-serviceable parts inside. Refer servicing

to qualiﬁed service personnel.

This product, as well as all attached extension cords, must be terminated with

an earth ground three-conductor AC mains power cord like the one supplied

with the product. To prevent shock hazard, all three components must always

be used.

Never replace any fuse with a value or type other than those speciﬁed. Never

bypass any fuse.

Always switch off your entire system before connecting or disconnecting any

cables, or when cleaning any components.

Do not place this unit on an unstable cart, stand or tripod, bracket or table. The

unit may fall, causing serious injury and/or serious damage. When cart is used,

use caution when moving the cart/apparatus combination.

Do not expose this product to rain or moisture, never wet the inside with any

liquid and never pour or spill liquids directly onto this unit. Please do not put

any objects ﬁlled with liquids (e.g. vases, etc.) onto the speaker.

Check if the speciﬁed voltage matches the voltage of the power supply you

use. If this is not the case do not connect the loudspeakers to a power source!

Please contact your local dealer or national distributor.

Caution

Risk of electrical shock

Do not open

Risque de shock electrique

Ne pas ouvrier

CAUTION: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,

DO NOT REMOVE BACK COVER OR ANY OTHER PART.

NO USER-SERVICABLE PARTS INSIDE.

DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

REFER SERVICING TO QUALIFIED PERSONNEL.

Safety Instructions

Tensor Epsilon (Semi-active Version) Manual / english

Protect the cord from being walked on or pinched.

Always use fully checked cables. Defective cables can harm your speakers. They

are a common source for any kind of noise, hum, crackling etc.

Always keep electrical equipment out of the reach of children.

Always unplug sensitive electronic equipment during lightning storms.

The monitor should be installed near the socket outlet and disconnection of the

device should be easily accessible.

To completely disconnect from AC mains, disconnect the power supply from

the AC receptacle. Never use ﬂammable or combustible chemicals for cleaning

audio components.

Avoid touching the speaker membranes and do not block the woofer’s

ventilation ports.

Never expose this product to extremely high or low temperatures. Never

operate this product in an explosive atmosphere.

High SPL’s may damage your hearing! Please do not get close to the

loudspeakers when using them at high volumes.

Please note that the diaphragms build up a magnetic ﬁeld. Do not ply with

magnetic items at close range to the diaphragms.

Assure free airﬂow behind the speakers to maintain sufﬁcient cooling.

Safety Instructions

Table of contents

Safety Instructions .............................................2-3

1. Introduction .......................................................5

2. Quick Start ........................................................6

2.1 Important Information .......................................6

2.2 Connecting the speakers ...................................6

3. Speaker Placement ............................................7-8

3.1 Room acoustics .................................................7

3.2 General recommendations ................................7

3.3 Tweeter at height of ears ...................................8

3.4 The stereo triangle .............................................8

3.5 Surround placement ..........................................8

4. Speaker Adjustment ..........................................9-10

4.1 LED ....................................................................9

4.2 Controls .............................................................9

4.3 Mode .................................................................9

4.4 Impedance linearization .....................................10

4.5 Tweeter level ......................................................10

4.6 Bass Gain and Room EQ ....................................10

5. Troubleshooting .................................................11

5.1 No or distorted signal ........................................11

5.2 Parasitic noises .................................................11

6. Maintenance ......................................................12

7. Shipping / Packaging ........................................12

8. Environmental Information ................................12

9. EU Declaration of Conformity ............................13

10. Limited Warranty ...............................................14

10.1 Terms and Conditions ........................................14

10.2 How to claim ......................................................14

11 . Technical Data ...................................................15

Tensor Epsilon (Semi-active Version) Manual / english

1. Introduction

Dear customer,

Thank you for choosing the ADAM Audio Tensor Epsilon loudspeaker.

ADAM loudspeakers are built for maximum quality reproduction and audio perfection.

With the Tensor Epsilon you have selected one of the most ambitious compact loudspeaker

systems available. It combines many of the groundbreaking ADAM innovations in the

areas of ampliﬁer and transducer technologies while furthermore distinguishing itself

by utilizing only the ﬁnest materials and the most fastidious workmanship. With the

TENSOR series, ADAM brings loudspeakers into your home that give you access to the

sonic authenticity of the most sought after professional studio monitors.

This version of the Tensor Epsilon is a two-way ported semi-active system that uses

the new X-ART tweeter, ensuring full compatibility with the latest expanded high

frequency resolution media formats, and one HexaCone©-bass/midrange driver. The

cone driver uses a PWM amp with continuous output of up to 200 Watts (RMS).

This manual is intended to provide you with information about your new ADAMs. It

contains important information regarding safety, setting up, handling, and

warranty. We request that you read these sections carefully to ensure easy set up and

prevent potential problems.

If you have any questions about this or any of our products, please don’t hesitate to

For detailed information concerning ADAM’s technologies and products, complete

reviews, and a list of worldwide ADAM users and studios, please visit our website:

www.adam-audio.com

You are invited to share your experience with our products by joining us on Facebook

and also, if you don’t want to miss out on the latest info on ADAM Professional Audio,

come and follow us on Twitter!

We hope very much that you really enjoy your new loudspeakers, and wish you many

delightful hours with them.

The ADAM Audio Team

2.1 Important Information for set up

After having unpacked your loudspeaker, please allow the system to acclimate to

the temperature of the room for approximately an hour.

We recommend using high quality cables to guarantee optimal performance.

It is important to ensure the speakers sit ﬁrmly on a solid surface!

We recommend that you retain the original packaging, as it is the best way to

guarantee safe transportation should the need to do so arise.

Please note that the loudspeakers will take some break-in time to achieve

optimum sonic performance.

2.2 Connecting the speakers

a) Before connecting the loudspeakers to your audio components and the power

source make sure that both the loudspeakers and your audio source are switched

off and set the level controls fully counterclockwise.

b) Connect the speaker terminal with your audio source

(i.e. stereo/multichannel ampliﬁer, A/V receiver etc.)

by using speaker wires with stripped bare ends or

banana plugs.

c) Check if the speciﬁed voltage matches the voltage of the power supply you use.

If this is not the case do not connect the loudspeakers to a power source! Please

contact your local dealer or national distributor.

If the voltages match, use the included power cables to connect the loudspeaker

to the AC sockets.

d) Switch on the main on/off switches on the back panel of the loudspeakers.

e) Make sure that the line out level (volume) of your stereo is either at a low level or

all the way off. Then, switch on your audio system.

f) Turn on your source of music and adjust the volume carefully.

2. Quick Start

Tensor Epsilon (Semi-active Version) Manual / english

The proper positioning of your loudspeakers is of extreme importance to the sound

quality. We would therefore like to give you some advice concerning room acoustics

and the setting up of your loudspeakers. Since every room is unique, we can only offer

general recommendations.

3.1 Room acoustics

Room acoustics come down to essentially three aspects:

a) Reverberation: The ‘sound’ of a room is to some extend a result of its reverbera-

tion, i.e. to how the sound waves are reﬂected. Soft furniture (like carpets, cur-

tains, or sofas) tends to absorb sound waves, especially higher frequencies. Hard

materials like stone or glass reﬂect sound waves almost entirely. In general, rever-

berant rooms are rather unforgiving in terms of authentic music reproduction due

to the great number of reﬂections.

b) The room dimensions: The volume of a room is the second important aspect of its

acoustics. The same loudspeaker will sound different in different sized rooms with

similar sonic characteristics. Therefore, the size of your room partly determines

the positioning of your loudspeakers.

c) The listening distance: The distance between the listener and the sound source

is the third crucial aspect in loudspeaker positioning. If this distance is either too

great or too small, the sound will be compromised.

3.2 General recommendations

Please make sure that there are no obstacles in the way from the monitor to your

ears. You should be able to see the speakers completely.

The distance to the surrounding walls should be at least 40 cm to avoid early

reﬂections, which will degrade the sound.

The loudspeakers should be aligned with the listener’s position.

Please note that vibrating parts of nearby objects can mask the sound.

3. Speaker Placement

3.3 Tweeter at the height of ears

The Tweeter should be positioned approximately at the

height of your ears. If the speaker does not point right

in your direction, you might lose sound

information.

In case you need to position the speaker in a signiﬁcant

lower or higher position, the monitor should be angled

accordingly.

3.4 The Stereo Triangle

If the loudspeaker is going to be used for stereo ap-

plications, the optimum listening position should be at

the top of an imaginary equilateral triangle with the two

loudspeakers should be placed at the other two points

of this triangle.

The loudspeakers should be aligned with the listener’s

position.

3.5 Surround Placement

Speaker positioning for multi-channel stereo purposes

is ideally based on a circle with speakers placed at 0°

(Center), 30° (Front Right), 110° (Rear Right), 250°

(Rear Left), 330° (Front Left), with the listener being

the circle’s center (Radius between 0.7-2.0 m). This ITU

recommended conﬁguration may vary depending on the

purpose of the control room (music or ﬁlm). However,

it is recommended to create a symmetrical listening

position with the front side and surround speaker

pointing to the listener’s ear.

The distance to the surrounding walls should be at least

40 cm to avoid early reﬂections, which can degrade the

sound.

3. Speaker Placement

Tensor Epsilon (Semi-active Version) Manual / english

4.1 LED

On the bottom of the tweeter you ﬁnd an

LED. It indicates Power on and, in case of

an overload, the function of the protective

circuit.

Please note: When the speaker is switched

on, the LED will ﬂash red a few times. This

does not indicate an overload.

• The LED starts to glow green during normal operation (the power switch is

located on the rear side of the speaker).

• In case of an overload, the OL LED will ﬂash red. The protective circuit will safe

your speaker from damage.

4.2 Controls

On the rear side you will ﬁnd controls that

allow detailed ﬁne-tuning of your loudspeakers

to your particular room acoustics and per-

sonal listening preferences. The following

tips are intended to assist you at using the

controls in the best manner.

Please note that using the controls may

have a great impact on the overall sound

characteristics of your loudspeakers. We

recommend using the controls with utmost

care and only after several audio tests with

familiar recordings.

4.3 Mode

This button allows you to choose between

• Signal On: woofer starts operation as soon as a musical

signal arrives, and stops after 15 minutes without a signal.

• Continuous: the unit is permanently working. We

recommend the ”Signal on” position. It minimises power

consumption and makes handling very easy.

4. Speaker Adjustment

LED

4.4 Impedance linearization (for tube ampliﬁers)

The semi-active Tensor Epsilon was designed

for you to be able to use your own ampliﬁer at

bass-midrange, midrange and high frequencies.

Usually, this will be a transistor ampliﬁer that

does not have any problems with the vacillating

impedance characteristics due to its low internal

resistance.

With the output of a tube ampliﬁer however, the situation is different.

The sound quality can be improved if the amp gets an impedance of

4 Ω or 8 Ω that stays the same at all frequencies. That is why the

semi-active Tensors feature built-in impedance linearization that can

be patched into the signal path.

4.5 Tweeter Level

In addition, the ‘Tweeter Level’ allows to either raise

or lower the high frequency level by 1,5 dB. Just insert

the short circuit plug in the accordant position: -1,5

dB to lower and +1,5 dB to raise the high frequency

level.

4.6 Bass Gain and Room EQ

The other two controls alter the bass frequencies:

• The ‘Bass Gain ‘ raises or lowers the overall bass

level up to +/-10 dB.

• The ‘Room EQ’ is a shelving ﬁlter and works differently: from a certain

point (below 150 Hz in this case) the frequencies are gradually being

changed (see ﬁgure).

4. Speaker Adjustment

Room EQ <150 Hz for low frequencies

below 150 Hz

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