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POLYGLASS SUBWOOFERS MANUAL
U s e r
M a n u a l
This product has been designed using the very latest technologies available; to
ensure the quality performance is to a very high standard. To gain the best results
from your subwoofer, please ensure you follow these recommendations. If not
followed correctly any fault observed, may not be covered by the guarantee.
Cables
For optimum performance the use of OFC cable (Oxygen Free Cable), to a sufficient thickness
(2.5mm²) is highly recommended. This is particularly important in the case of long cable
lengths being used in the installation. We recommend the use of Focal cables FC500 or
FC700. Check with your local Focal dealer for further advice.
Connecting up
Always check the polarity to the subwoofer, and that of the other speakers used in your
installation. The polarity is important to ensure the phase characteristics remain correct,
otherwise a "loss" of performance can result. The spring action input terminals are clearly
marked red spot = positive (+) and black spot = negative (-).
The 21 V2 uses a single coil; thus, there is one set of input terminals. For the 27 V2, 33 V2 and
40 V2, these all use a double coil system, thus have 2 x 2 input terminals incorporated.
These subwoofers can be mounted in the traditional sense with the membrane on view
externally, or inverted mounting with the motor unit and its chrome back plate on display.
Inverted mounting helps increasing the volume for the given space available. When choosing
inverted mounting the phase must be inverted (thus swap the positive / to negative connections)
so that the polarity is correctly observed.
Multi-subwoofer installations
To obtain a more powerful acoustic presence, we recommend the introduction of multiple
subwoofers for your chosen installation. Using multiple subwoofers, various series or parallel
or combinations of both can be used, but always check the specifications of the power source
(amplifier) before attempting any installation. It is worth remembering if low impedance of
2 or even 1 ohm is chosen an amplifier of high quality should always be used for such
installation.
THE FOCAL GUARANTEE ONLY APPLIES IF PAGE
RETURNED TO US WITHIN
Focal® is a trademark of Focal-JMlab® - BP 374 - 108, rue de l'Avenir - 42353 La Talaudière
cedex - France - Tel. (+33) 04 77 43 57 00 - Fax (+33) 04 77 43 57 04 - www.focal-fr.com
Due to constant technological advances, Focal reserves its right to modify specifications without notice. Images may not conform exactly to specific product.
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10
DAYS OF PURCHASE
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Français page 9
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Summary of Contents for Focal 21 V2
- Page 1 = positive (+) and black spot = negative (-). The 21 V2 uses a single coil; thus, there is one set of input terminals. For the 27 V2, 33 V2 and 40 V2, these all use a double coil system, thus have 2 x 2 input terminals incorporated.
- Page 2 The real advantage of doing this is to have a system with available power, but at the same time to ensure the system impedance load is optimum for the amplifier(s) used. Connection diagrams for the 21 V2...
- Page 3 3 subwoofers 21 V2 in parallel. Z = 1,33 Ω 2 subwoofers 21 V2 in series. Z = 8 Ω 4 subwoofers 21 V2 in series / parallel. Z = 4 Ω Connection diagrams for the 27 V2, 33 V2 and 40 V2 Four examples : Connect in parallel the 2 voice coils Z = 2 Ω...
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Page 4: Building An Enclosure
POLYGLASS SUBWOOFERS MANUAL U s e r M a n u a l Examples and configurations for various multiples of subwoofers: 2 subwoofers 33 V2 both in parallel. Z = 1 Ω 2 subwoofers connected in series / parallel. Z = 4 Ω 3 subwoofers 33 V2 connected in series / parallel. - Page 5 Warning! The improved power handling has allowed Focal subwoofers to play at very loud sound volumes. For this reason, we recommend caution be wisely applied, especially during long listening periods. Excessive volume levels of more than 110dB can cause permanent hearing damage.
- Page 6 In the unlikely event of any problem, please contact your Focal Audiomobile retailer. Outside France, all Focal speakers are covered by the guarantee drawn up by the official Focal distributor in your country. Your distributor can provide all details concerning the conditions of the guarantee.
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Page 7: Frequency Response
POLYGLASS SUBWOOFERS MANUAL U s e r M a n u a l Frequency response 21 V2 Sealed enclosure 10 liters (0.35 cu.ft.) F - 3 = 43Hz / Fast and tight bass 15 liters (0.53 cu.ft) F - 3 = 41Hz / Punchy and dynamic bass 20 liters (0.71 cu.ft) - Page 8 POLYGLASS SUBWOOFERS MANUAL U s e r M a n u a l 40 V2 Sealed enclosure 40 liters (1.41 cu.ft) F - 3 = 46Hz / Fast and tight bass 60 liters (2.12 cu.ft) F - 3 = 43Hz / Punchy and dynamic bass 80 liters (2.83 cu.ft) F - 3 = 41Hz / Deep and articulate bass Frequency (Hz)
- Page 9 - France - Tel. (+33) 04 77 43 57 00 - Fax (+33) 04 77 43 57 04 - www.focal-fr.com Dans un but d'évolution, Focal-JMLab se réserve le droit de modifier les spécifications techniques de ses produits sans préavis. Images non contractuelles.
- Page 10 2 subwoofers 21 V2 en parallèle. Z = 2 Ω 3 subwoofers 21 V2 en parallèle. Z = 1,33 Ω 2 subwoofers 21 V2 en série. Z = 8 Ω 4 subwoofers 21 V2 en série / parallèle. Z = 4 Ω...
- Page 11 NOTICE POLYGLASS SUBWOOFERS M a n u e l d ' u t i l i s a t i o n Raccordements des subwoofers 27 V2, 33 V2 et 40 V2 Quatre possibilités de raccordement : Mise en parallèle des 2 bobines. Z = 2 Ω Mise en série des 2 bobines.
- Page 12 NOTICE POLYGLASS SUBWOOFERS M a n u e l d ' u t i l i s a t i o n Réglage de la fréquence de coupure La fréquence de coupure d’un subwoofer se situe le plus souvent entre 60 et 100 Hz, une coupure vers 80 Hz représente un réglage de base qui sera affiné...
- Page 13 En cas de problème, adressez-vous à votre revendeur Focal. La garantie pour la France sur tout matériel Focal est de un an, à partir de la date d’achat, non transmissible si le matériel est revendu. En cas de matériel défectueux, celui-ci doit être expédié...
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Page 14: Caractéristiques Techniques
NOTICE POLYGLASS SUBWOOFERS M a n u e l d ' u t i l i s a t i o n Caractéristiques techniques 21 V2 27 V2 33 V2 40 V2 cône 15,5 cm 20,7 cm 26 cm 33,2 cm... - Page 15 NOTICE POLYGLASS SUBWOOFERS M a n u e l d ' u t i l i s a t i o n Courbes de réponse 21 V2 Caisson clos 10 litres F - 3 = 43 Hz / Grave rapide et tendu...
- Page 16 NOTICE POLYGLASS SUBWOOFERS M a n u e l d ' u t i l i s a t i o n 40 V2 Caisson clos 40 litres F - 3 = 46 Hz / Grave rapide et tendu 60 litres F - 3 = 43 Hz / Grave dynamique et nerveux 80 litres F - 3 = 41 Hz / Grave profond et articulé...
- Page 17 Pour validation de la garantie Focal, nous renvoyer cette page dans les 10 jours, à l’adresse suivante : Focal- JMlab - BP 374 - 108, rue de l’Avenir - 42353 La Talaudière cedex - FRANCE Vous : Votre nom : Âge :...
- Page 19 For the validation of the Focal guarantee, send back this sheet within 10 days to the following address: Focal- JMlab - BP 374 - 108, rue de l’Avenir - 42353 La Talaudière cedex - FRANCE About yourself: Your name: Your age:...
- Page 20 Focal ® is a registered trademark of Focal- JMlab ® - www.focal-fr.com Focal- JMlab ® - BP 374 - 108, rue de l'Avenir - 42353 La Talaudière cedex - France Tel. (+33) 04 77 43 57 00 - Fax (+33) 04 77 43 57 04 - SCEB-070315/5...