ALPINE SWG-1044, SWG-1244, SWG-844 User Manual

TYPE-G SUBWOOFER

HAUT-PARLEUR D’EXTREMES GRAVES TYPE-G

APPLICATION GUIDE

GUIDE D’APPLICATION

SWG-1244

12 Inch High Performance Subwoofer (4Ω)

Haut-parleur 30 cm d’extrêmes graves haute performance (4Ω)

SWG-1044

10 Inch High Performance Subwoofer (4Ω)

Haut-parleur 25 cm d’extrêmes graves haute performance (4Ω)

SWG-844

8 Inch High Performance Subwoofer (4Ω)

Haut-parleur 20 cm d’extrêmes graves haute performance (4Ω)

Electro-Mechanical Parameters

Subwoofer Features and Specifications

SWG-844 SWG-1044 SWG-1244

Type-G

Features

Size 8" 10" 12"

Power Handling (RMS/peak) 120W/400W 150W/500W 250W/800W

Power Range (RMS) 50W-120W 50W-150W 50W-250W

Frequency Response 34Hz-1.5kHz 33Hz-1kHz 28Hz-1kHz

Diaphragm Material

Design

Surround Material

Design

Spider Material

Design

Voice Coil Material

Design

Motor Structure Pole Geometry

Configuration

Magnet

Frame Material

Design

Terminals

Layout

Design

Tinsel Leads Design

Gasket Design

Drenched Long-Fibre Pulp, Polypropylene Reinforced

2 Piece Parabolic

Butyl Rubber

High Excursion, Half Roll

Carbonized Nomex®

Single High Linear, Back Vented

High Temp Copper Wire, ASV Former

Dual Layer

Optimized Conventional

Extended Pole with Laminar Flow Vent

Double Stack Y-30 HQ-Strontium

Heavy Gauge Steel, Titanium Powder Coated

Deep Diver® with Wind Tunnels

One Side

Gun-Metal Finish 5-Way Binding Posts with Lock-Nuts

Woven Ultrafine Liz Wire, Black Silicone Insulated

Injection Moulded Rubber, Hidden Screw Design, Front / Rear Sealing

Enclosure Information

Mounting Depth 111 mm (4.4") 139 mm (5.5") 169 mm (6.7")

Mounting Diameter - Front Mount

Added Volume - Reverse Mount**

Displacement - Front Mounted**

Displacement - Rear Mounted**

Recommended Box Types (S)Sealed/(V)Vented/(BP)Bandpass

183 mm (7.2") 235 mm (9.3") 282 mm (11.1")

0.7 L (0.02 ft³) 1.1 L (0.039 ft³) 1.6 L (0.056 ft³)

1.1 L (0.04") 1.9 L (0.067 ft³) 2.8 L (0.099 ft³)

1.5 L (0.05") 2.4 L (0.085 ft³) 3.5 L (0.124 ft³)

S/V/BP

Sealed Box Volume Range 10 - 19 L (0.35 - 0.67 ft³) 20 - 27 L (0.71 - 0.95 ft³) 28 - 40 L (0.99 - 1.41 ft³)

Optimum Sealed Box Volume 15 L (0.53 ft³) 24 L (0.85 ft³) 35 L (1.24 ft³)

Vented Box Volume Range 15 - 30 L (0.53 - 1.06 ft³) 25 - 35 L (0.88 - 1.24 ft³) 32 - 58 L (1.13 - 2.05 ft³)

Optimum Vented Box Volume 22 L (0.78 ft³) 28 L (0.99 ft³) 39 L (1.38 ft³)

Vent Diameter/Length 7 / 29 cm (3" / 11.4") 7 / 27 cm (2.8 / 10.6") 7 / 23 cm (2.8 / 9.1")

Usable Q-Logic Box Types

Optimum Q-Logic Box Type

TBA

Nominal Impedance 4 Ω 4 Ω 4 Ω

Frequency Response 34 Hz - 1.5 kHz 33 - 1 KHz 28 - 1 KHz

Sensitivity (SPL@1W/1m)* 87 dB 88.4 dB 89.8 dB

D.C Coil Resistance (Re) 3.6 Ω 3.6 Ω 3.6 Ω

Inductance (Le) 1kHz/20kHz 1.17 / 0.30 mH 1.17 / 0.30 mH 1.02 mH / 0.24 mH

Free Air Resonance (Fs) 34 Hz 33 Hz 28 Hz

Equivalent Stiffness (Vas) 33.4 L 65 L (2.30 ft³) 75 L (2.65 ft³)

Mechanical Q (Qms) 5,1 4.06 3.27

Electrical Q (Qes) 0,46 0.37 0.43

Total Q (Qts) 0,42 0.34 0.38

Linear Excursion [(Hvc-Hag)/2)], One-Way (Xmax) 8 mm 8 mm 10 mm

Magnetic Linear Excursion, One-Way (Xmag) 19 mm 19 mm 23 mm

Mechanical Excursion, Peak-to-Peak 38 mm 42 mm 50 mm

Gap Height (Hag) 8 mm 8 mm 10 mm

Coil Height (Hvc) 22 mm 22 mm 30 mm

Cone Area (Sd) 216 cm² 346 cm² 502 cm²

Voice Coil Diameter 38 mm (1.5") 38 mm (1.5") 50 mm (2")

Magnet Weight 57 oz (1.62 kg) 57 oz (1.62 kg) 104 oz (2.95 Kg)

Note: All specifications are subject to change without notice

# All T/S parameters measured/calculated after break-in.

* This commonly misunderstood specification should not be used as a reference for subwoofer output capability.

** Based upon 3/4" (19mm) baffle thickness, with opening cut approximately to gasket inner diameter

Paramètres électomécaniques

Caractéristiques et spécifications Caractéristiques

SWG-844 SWG-1044 SWG-1244

Type-G

Features

Taille 8" 10" 12" Puissance admissible (efficace / crête) 120W/400W 150W/500W 250W/800W Plage de puissance (efficace) 50W-120W 50W-150W 50W-250W Réponse en fréquence (Hz) 34Hz-1.5kHz 33Hz-1kHz 28Hz-1kHz Membrane Matériau

Conception

Suspension Matériau

Conception

Centreur Matériau

Conception

Bobine Matériau

Conception

Moteur Géométrie de pièce polaire

Configuration Aimant

Bâti Matériau

Conception

Bornes

Répartition

Conception Fils conducteurs Conception Joint d'étanchéité Conception

Longues fibres trempées, renforcées de polypropylène

Parabolique 2 pièces

Suspension Butyl

Demi rouleau à haute excursion

Carbonized Nomex®

Ventilation arrière simple linéaire

Fil cuivre haute température, conception ASV

Double couche

Conventionnel Optimisé

Pole étendu avec évent laminaire

Double construction Y-30 au Strontium

Châssis acier, revêtu de poudre de titane

Deep Diver® avec tunnels d'aération

Simple face

Connecteurs 5 voies finition brossée à clipage

Fil ultra fin tressé en toron, isolé au slicone noir

Joint injecté moulé, conception à vis cachées, étanchéité avant/arrière

Enciente

Profondeur de montage 111 mm (4.4") 139 mm (5.5") 169 mm (6.7") Diamètre de montage - montage avant 183 mm (7.2") 235 mm (9.3") 282 mm (11.1") Volume ajouté - montage inversé** 0.7 L (0.02 ft³) 1.1 L (0.039 ft³) 1.6 L (0.056 ft³) Déplacement - montage avant** 1.1 L (0.04") 1.9 L (0.067 ft³) 2.8 L (0.099 ft³) Déplacement - montage arrière** 1.5 L (0.05") 2.4 L (0.085 ft³) 3.5 L (0.124 ft³) Types d'enceintes recommandés -

(C)close / (É)évent / (PB)passe-bande

C/E/PB Plage de volume - enciente close 10 - 19 L (0.35 - 0.67 ft³) 20 - 27 L (0.71 - 0.95 ft³) 28 - 40 L (0.99 - 1.41 ft³) Volume optimal - enciente close 15 L (0.53 ft³) 24 L (0.85 ft³) 35 L (1.24 ft³) Plage de volume - enciente à évent 15 - 30 L (0.53 - 1.06 ft³) 25 - 35 L (0.88 - 1.24 ft³) 32 - 58 L (1.13 - 2.05 ft³) Volume optimal - enciente à évent 22 L (0.78 ft³) 28 L (0.99 ft³) 39 L (1.38 ft³) Diamére / longeur de l'évent 7 / 29 cm (3" / 11.4") 7 / 27 cm (2.8 / 10.6") 7 / 23 cm (2.8 / 9.1") Usable Q-Logic Box Types Optimum Q-Logic Box Type

À communiquer À communiquer

Impédance nominale 4 Ω 4 Ω 4 Ω Réponse en fréquence 34 Hz - 1.5 kHz 33 - 1 KHz 28 - 1 KHz Sensibilité (NPA@1W/1m)* 87 dB 88.4 dB 89.8 dB Résistance CC de la bobine (Re) 3.6 Ω 3.6 Ω 3.6 Ω Inductance (Le) 1KHz/20KHz 1.17 / 0.30 mH 1.17 / 0.30 mH 1.02 mH / 0.24 mH Résonance à l'air libre (Fs) 34 Hz 33 Hz 28 Hz Radieur équivalente (Vas) 33.4 L 65 L (2.30 ft³) 75 L (2.65 ft³) Q méchanique (Qms) 5,1 4.06 3.27 Q électrique (Qes) 0,46 0.37 0.43 Q total (Qts) 0,42 0.34 0.38 Déplacement linéaire [(Hvc-Hag)/2], un sens (Xmax) 8 mm 8 mm 10 mm Déplacement linéaire magnétique, un sens (Xmag) 19 mm 19 mm 23 mm Déplacement mécanique, crête à crête 38 mm 42 mm 50 mm Hauteur de l'écartement (Hag) 8 mm 8 mm 10 mm Hauteur de la bobine (Hvc) 22 mm 22 mm 30 mm Surface du diaphragme (Sd) 216 cm² 346 cm² 502 cm² Diamètre de la bobine 38 mm (1.5") 38 mm (1.5") 50 mm (2") Poids de l'aimant 57 oz (1.62 kg) 57 oz (1.62 kg) 104 oz (2.95 Kg)

Remarque: Les spécifications peuvent changer sans préavis.

# Paramètres T/S mesurés/calculés après rodage. * Ne pas utiliser cette spécification souvent mal comprise comme référence pour la puissance du haut-parleur d'extrêmes graves. ** Panneau de 0.75 po (19 mm) d'épaisseur, overture correspondant environ au diamètre intérieur du joint d'étanchéité.

ENCLOSURE RECOMMENDATIONS

power handling with subsonic filter [W]

300

ALPINE SWG-1244 30 cm Subwoofer

woofer-displacement:

box type optimisation for: loud normal low / definition

sealed net box volume [Liter] * - 25 34

free field SPL at 90 Hz [dB/Wm] - 89,5 89,2

mech. power handling [Watt RMS] - 200 200

low cut frequency (free flield) Flow [Hz] - 40 36

vented net box volume [Liter] *+** 32 32 55

port diameter x length [cm] 10 x 26 7 x 21 10 x 34

free field SPL at 90 Hz [dB/Wm] 92 90,3 89,5

mech. power handling [Watt RMS] 200 200 230

high cut frequency for subsonic filter[Hz] 28 25 24

power handling with subsonic filter [W] 300 300 300

low cut frequency (free flield) Flow [Hz] 42 35 27

single vented band pass net box volume [Liter] * V1 - 19 30

net box volume [Liter] ** V2 - 19 18

port diameter x length [cm] in V2 - 2 pc. 10 x 34 3 pc. 7 x 39

free field SPL at 90 Hz [dB/Wm] - 91 88

mech. power handling [Watt RMS] - 250 250

low cut frequency (free flield) Flow [Hz] - 36 27

V 1 V 2

double vented band pass net box volume [Liter] * + ** V1 25 37 45

port diameter x length [cm] in V1 7 x 32 7 x 25 7 x 36

net box volume [Liter] ** V2 24 23 23

port diameter x length [cm] in V2 2 pc. 10 x 20 2 pc. 10 x 27 2 pc. 10 x 36

free field SPL at 90 Hz [dB/Wm] 93,3 91,6 90

mech. power handling [Watt RMS] 250 250 275

high cut frequency for subsonic filter[Hz] 22 22 15

2,8 Liter

V 1 V 2 low cut frequency (free flield) Flow [Hz] 43 34 26

*): add additional 2,8 L for woofer!

**): calculate and add volume displacement of port(s)

formula: outer diameter [dm] square times 3,14 devided by 4, times length [dm]

ports should be rounded (aeroports)! In cases where round tubes don't fit,

channels with same cross-section (rounded at both ends) may be built.

damping: sealed encl. Fill loosely with poly-padding, vented encl.: 2 walls covered by acoustic foam.

enclosure wall thickness: MDF/Multilayer: 19 to 22 mm. Woofer screwed by metric thread knock-in nuts.

Subsonic-Filter: high pass filter of 3rd order or higher

mounting size:

mounting hole diameter: 282 mm

mounting depth: 169 mm

magnet diameter: 156 mm

recomm. freeplay behind magnet: > 20 mm

if flange gets lowered into baffle: without - with rubber gasket

grinding diameter: 306 mm 312 mm

grinding depth: 14 mm 16 mm

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