Vulkan VII - Speaker Aurum - Free user manual and instructions

USER MANUAL Vulkan VII Aurum

Positioning your speaker on hard floor surface 5-6

Connecting to the amplifier 6-8

Beware of clipping

Care of loudspeakers 9

What to do if your speakers don't sound right? 10

Technical data 11

DEUTSCH

Sicherheitshinwelle 12-13

Aufstellung 14

First of all, thank you for deciding on AURUM loudspeakers.

It is to satisfy the high expectations of music lovers and connoisseurs such as you that we build loudspeakers of a class that is well above average. Even though you may already be familiar with them, we list below a few ground rules that will enable you to make optimal use of your loudspeakers.

Safety advice for passive loudspeakers

Please take time to read through the manual carefully and follow all the steps describing how to set up and operate the loudspeakers. Keep the manual somewhere you can quickly access it should you have any questions later on.

• The stability of loudspeakers (especially large units) depends on the nature of the surface on which they stand. Carpets are often very poor for stability. Even an average bump can cause a loudspeaker to fall over and be a hazard for persons or pets in the vicinity. Stability can be significantly improved by using "spikes", but care should be taken during assembly as the sharp points can cause injury and the spikes can damage the floor. On smooth floors, the loudspeakers can be stabilised with Velcro or double-sided tape. Loudspeakers should never be used as a seat or as a substitute for a ladder!
• Use only wheeled furniture, stands or wall mounting systems and other devices for attaching and installing the products, which are available from the manufacturer and are sold for or with the product. To avoid damage or injury through tipping over, please be careful when moving table devices or stands on which the speakers are mounted. If wall-mounting the product, take special care that all components are securely screwed. Additional securing equipment (chains, etc.) should be fitted.
• The location for the loudspeakers should be dry and not too cold. Constant high humidity or strong sunlight (UV radiation) can cause your loudspeakers to age prematurely and consequently affect their functioning.
• Very high volume levels for long periods of time are not only annoying for your neighbours, but can also be harmful to the health of the user!

• When loudspeakers are overloaded with very high volume levels, there is a risk of individual components In crossover circuits or Individual speakers burning out. In particularly bad cases, it is even possible for fire to break out inside a speaker. Speakers operated at these extremes should therefore not be left unattended.

• At high volumes, voltage levels of 30-50 V can be present at speaker terminals and components. Be very careful not to touch uninsulated terminal contacts of speakers when in operation. To avoid injury, never put hands or arms into sound outlets (boss reflex tubes). Children and pets, in particular, are at risk from this.

• For safety reasons, we generally forbid the opening of loudspeaker cabinets when in operation or connected since, as explained in the above paragraph, voltages of up to 50 volts can be present inside.

- Improper handling of mains voltage can cause fatal injury!

Passive loudspeakers must on no account be connected to the electricity supply!

Speaker terminals may only be connected to the appropriate output terminals of the amplifier. You should never connect these terminals to the electricity supply (230 V/115 V) in any way since that will otherwise also immediately destroy the loudspeaker and all connected products. Avoid fitting plugs to ends of speaker cables that could even remotely be confused with mains supply plugs.
- Loudspeakers that are not magnetically shielded can affect the colour of the TV picture or cause distortion. A distance of 50~cm is generally sufficient to avoid problems of this kind. Avoid placing items such as credit cards, diskettes, audio or video cassettes or other magnetic media on the loudspeaker. This could destroy the information stored on them. Similarly, avoid operating magnetic tape devices in the immediate vicinity.

Setting up

As a rule you should try various set-up positions in order to get the best sound results.

Since the positioning of loudspeakers decisively influences the quality of the sound they deliver, we'll start by giving you some hints on how and where to set your AURUM units up.

Placing the speakers near the corners of the room will essentially give you loud bass reproduction but with little outline. On the other hand, speakers positioned well away from the walls sound precise, but also very bright and thin. The best solution is to place the speakers with a clearance of at least 30cm between their backs and the nearest wall. To avoid loud wall reflections, the distance from the side walls of the room can even be 50cm or more.

As far as possible, the speakers should be equidistant from the listening position, while the distance of the speakers from each other can be rather less than the distance from the listener.

Positioning your speakers on hard floor surfaces

If your AURUM floorstanding speakers are going to be placed on a hard floor surface, for instance on tiles, stone, parquet or laminate, we urgently recommend that you fit the supplied rubber mats in place under the cabinet base. These mats will protect your speakers as well as the floor from damage while compensating any slightly uneven spots. However, you will not need to use them where soft floor surfaces such as carpets are concerned since the aluminium discs pre-fitted between the cabinet and base already serve the purposes of acoustic decoupling. When fitting the rubber mats (S) onto the speaker base you will need a helper as

well as the cardboard angle strip that you will find in the speake packaging. We recommend doing so on each of the speakers as follows:

• Firstly, determine where you definitively wish to position the speaker in the listening area and have the angle strip and rubber mat ready to hand.
• Your helper should now fill the cabinet slightly to one side so that you can slide the angle strip one centimetre (at the most) under the raised edge of the cabinet base.
• Your helper should now tilt the cabinet slightly to the other side and hold it in this tilted position while you fit the rubber mat precisely into place under the raised base; when doing

so, make sure that the groove in the mat is at the back, in other words beneath the rear side of the cabinet.

• When this has been completed your helper can then carefully tilt the speaker back into its stable upright position.

Connecting to the amplifier

Before connecting up the speakers to your hi-fi or surround sound system, please ensure that the amplifier/receiver is switched off and its pilot light is not on. For connection, you will need a twin-core loudspeaker cable for each speaker cabinet. Make sure these cables are sufficiently long and cut them to a length that will subsequently enable you to lay them behind furniture or under the carpet where necessary. For cables more than 5 m in length we recommend a cross-section area of at least 2.5mm^2 per core in order to avoid any unnecessary loss of output. To enable optimum contact, about 10 mm of the cores at each end of the cable must be isolated, and thus bare.

Screw terminals

For connection, the speakers are provided with colour-coded screw terminals on the back of the cabinet. Loosen the screw terminals and feed the stripped end of the core Into the hole that is now free. The two cores of speaker cables have different colouring or shape for recognition. Connect the "+" core to the red, positive terminal - the remaining core to the black terminal. Tighten the screws hand-fight. To ensure correct polarity, check that the core connected to the red "+" terminal of the speaker is also the core that is connected to the red "+" terminal of the amplifier and that the other core is connected to the black "-" terminals of both the speaker and amplifier.

With AURUM loudspeakers you can choose between three modes of operation:

a) Conventional mode

Do not remove the jumpers, connect the speaker cable as shown in the illustration.

b) Blwrlng mode

Remove the Jumpers after loosening the four screw terminals on the back of the speaker and connect the cable as shown in the illustration.

c) Blamping mode

Remove the Jumpers and connect the cables as shown in the Illustration.

When using the AURUM TITAN VII in blwiring / blamping mode, the woofer is driven via the two right-hand screw terminals and the midrange and tweeter via the two left-hand terminals. On the AURUM VULKAN VII and AURUM MONTAN VII the two screw terminals for the woofer are located below on the connection panel and those for the midrange and tweeter above.

Make sure you use the correct polarities in these modes and that you remove the jumpers on the speaker terminal to avoid damaging your amplifier.

Operation with a surround amplifier

Once you have positioned and connected your speakers as shown in the illustration, you should perform the necessary settings in the bass management system of your surround amplifier.

Make sure you read the user manual supplied by your amplifier's manufacturer before doing this.

Beware of clipping!

Even if an amplifier's nominal output is significantly lower than the rated power-handling capacity of the speakers connected to it, there is still every possibility that the speakers might be damaged if not used correctly. The nominal output quoted merely indicates the number of watts the amplifier is capable of delivering to the speakers with low distortion. If an amplifier is overloaded it delivers far more power on the one hand while adding destructive direct current as well as high-frequency oscillation on the other. This process is known as clipping and negatively affects the sound through severe distortion in loud passages of music. When distortion becomes audible you should turn the volume down straight away to avoid damaging the speakers. Amp-clipping is a typical indication of overloading and always occurs when the volume and/or tone controls is/are is turned up too high. Even when the tone controls are set in neutral (12 o'clock) position, conventional amps already reach their limits when subject to loud impulses as soon as the volume control is turned well beyond the 12 o'clock position.

Care of your loudspeakers

Your AURUM loudspeakers are best cleaned with a soft, dry cloth. The aluminium housing is best wiped in a longitudinal direction with a damp cloth. Do not use solvents.

You should only clean the loudspeaker systems (woofer, midrange units, etc.) when they have become very dirty (small amounts of dust have no effect on the acoustics). Use a soft, dry cloth or a soft brush with very gentle pressure, otherwise there is a risk of damaging the diaphragms.

We generally advise against cleaning the tweeter diaphragms because they are extremely sensitive to pressure!

If the silver front frame becomes dirty, spray dry foam cleaner (such as Centralin spray) onto dirty areas, leave to work in, then simply remove with a vacuum cleaner. Do not brush off black front frames, instead tap off or remove the dirt carefully with adhesive tape. On no account clean using anything damp!

Should you have any questions, please contact us on tel.: [phone], e-mail: [e-mail]

Fault	Cause	Rectification
Audible distortion even at low volume	a) Fault in the electronics	a) The fault lies in the electronics if the problem affects both speakers.Swap over the left and right speakers if only one speaker is affected. If the problem is still on the same channel, your electronics are faulty.The speaker is faulty if the problem is now on the other channel.b) Fault in the speaker	b) Please contact your dealer or our service (tel. [phone]).
No sound	a) Cabling incorrectb) Amplifier switched off	a) Check the cabling.b) Switch on the system.
Slender, bright sound Sounds distant and unrealistic.	a) Incorrect polarity	a) Check to see if a terminal marked with + on the amplifier has been inadvertently connected to a terminal marked with - on the speaker or vice versa.b) Set up the speaker closer to a wall, but maintain a minimum clearance of 5 cm between the back of the speaker and the wall.
	b) Unfavourable set-up
Bass notes too powerful	a) Unfavourable speaker set-up (e.g. in the corner of a room)b) Bass control on amplifier set high	a) Move the speaker further away from the adjacent walls.b) Set the bass control on your amplifier to a neutral position.
Lack of treble	a) The tweeters are not properly aligned	a) Position the speakers so that the tweeters are facing directly towards your listening position.

Technical data

	AURUM TITAN VII
Type:	3-way
Design principle:	Pressure chamber/bass reflex
Nominal- / music power (W):	300/500
Frequency response (Hz):	16...65.000
Crossover frequency (Hz):	220/2.200
Sensitivity (dB/1W/1m):	91
Impedance (Ohm):	4...8
Speakers: Tweeter	ribbon
Midrange	210 mm Ø ALTIMA®
Wooler	380 mm Ø ALTIMA®
Cabinet size (H x W x D) in cm:	130 x 51 x 60
Weight in kg:	88
	AURUM VULKAN VII
Type:	3-way
Design principle:	Pressure chamber/bass reflex
Nominal- / music power (W):	250/400
Frequency response (Hz):	20...65.000
Crossover frequency (Hz):	300/2.500
Sensitivity (dB/1W/1m):	90
Impedance (Ohm):	4...8
Speakers: Tweeter	ribbon
Midrange	170 mm Ø ALTIMA®
Wooler	320 mm Ø ALTIMA®
Cabinet size (H x W x D) in cm:	115 x 37.9 x 39.4
Weight in kg:	49.5

AURUM MONTAN VII
Type:	3-way
Design principle:	Pressure chamber/bass reflex
Nominal- / music power (W):	160/250
Frequency response (Hz):	25...65.000
Crossover frequency (Hz):	350/3.000
Sensitivity (dB/1W/1m):	88
Impedance (Ohm):	4...8
Speakers:	Tweeter
	Midrange
	Woofer
Cabinet size (H x W x D) In cm:	105 x 32 x 36,95
Weight in kg: