| Content | Scan-Speak Discovery, 22W/4534G00, 8" Midwoofer, 4 ohm
- NRSC Fibre Glass Cone; Scan-Speak Patented Technology
- Fibre Glass dust cap
- High sensitivity 92dB
- Long Linear excursion
- 30Hz Resonance Frequency
- Diecast Aluminium basket
- Vents below spider
- Low damping rubber surround
Madisound recommends:
- 0.55 cubic foot (15.5 ltrs) sealed, F3 70
- 1 cubic foot (28 ltrs) vented, 2" x 6“, F3 49
The GF series is designed for the discerning audiophile customer. To meet the needs of this audience, several new technologies were developed with the goal of lowering distortion and damping in the speaker. The coated fiberglass cone reduces vibration and standing waves, and the vented motor system minimizes power compression. The combined result is a very open and dynamic sound.
The 22W/4434G has the same frame size and should be considered as a replacement for the PL22WO09-04 or the MG22WO09-04. |
Nominal Specifications - Nominal Diameter 8“, 200 mm
- Overall Diameter 8.81/8.18“, 223.7/207.9 mm
- Bolt Circle Diameter 8.27“, 210 mm
- Baffle Cutout Diameter 7.20“, 183 mm
- Depth 3.88“, 98.5 mm
- Flange and Gasket Thickness 0.43“, 10.8 mm
Electrical Specifications - Minimum Impedance 6.4 Ohm
- Nominal Impedance 8 Ohm
- Nominal Power Handling*** 200 W
- Maximum Power Handling**** 400 W
- Sensitivity (1W/1m) 97 dB
- Frequency Range 80 - 6300 Hz
- Voice Coil Diameter 2“, 52 mm
- Winding Material Aluminium
- Former Material Glass Fiber
- Winding Depth 0.39“, 9.8 mm
- Magnetic Gap Depth 0.31“, 8 mm
- Flux Density 1.3 T
THIELE & SMALL Parameters - Resonant Frequency (fs) 90 Hz
- DC Resistance (Re) 5.3 Ohm
- BL Product (BL) 13 N/A
- Diaphragm Mass inc. Airload (Mms) 23 grams
- Mechanical Compliance of Suspension (Cms) 0.14 mm/N
- Rms 1.53 Kg/s
- Electromagnetic Q (Qes) 0.41
- Mechanical Q (Qms) 8.5
- Total Q (Qts) 0.39
- Compliance Equivalent Volume (Vas) 0.29 ft³, 8.26 dm³
- Surface Area of Cone (Sd) 32.09“², 207 cm²
- Maximum Linear Excursion (Xmax)* 3.57 mm
- Xdamage** 10.65 mm
- Coil Inductance (Le) 0.41 mH
- Diaphragm mass (Mmd) 21.2 g
- Eta Zero 1.44 %
Notes
- *Xmax = [(winding depth - magnetic gap depth) / 2] + (magnetic gap depth / 3)
- **Maximum excursion before permanent damage
- ***2 Hours Test According to AES 2-1984 Rev. 2003
- ****Maximum power is defined as 3dB greater than nominal power
|
-
- 8” neodymium magnet driver with 1.5” voice coil, providing 200Wrms (AES) continuous power handling
- Suitable for line array applications, utilizing a space-efficient octagonal chassis profile
- Optimized flux distribution in the magnet assembly provides low harmonic distortion
- M-roll surround provides progressive excursion control, generating a smooth frequency response
- Intelligent heat management in both chassis and magnet assembly design offers reduced thermal compression
General specifications
| Nominal diameter (mm/in) |
203/8 |
| Power Rating (AES, W rms) |
200 |
| Nominal impedance (Ω) |
8 |
| Voice coil diameter (mm/in) |
50.8/2.0 |
| Magnet type |
Neodymium |
| Chassis type |
Cast aluminium |
| Sensitivity (dB) |
92 |
| Frequency range (Hz) |
70-6000 |
| Coil material |
Round copper |
| Cone material |
Kevlar loaded paper |
| Surround material |
Cloth-sealed |
| Suspension |
Single |
| Xmax (mm/in) |
4/0.16 |
| Gap depth (mm/in) |
8.0/0.32 |
| Voice coil winding width (mm/in) |
15.0/0.63 |
Small Signal Parameters
| D (m/in) |
0.17 |
| Fs (Hz) |
80.3 |
| Mmd (g/oz) |
22.39 |
| Mair |
1.94 |
| Qms |
1.33 |
| Qes |
0.59 |
| Qts |
0.41 |
| Re (Ω) |
5.85 |
| Vas (lt/ft3) |
11.3/0.399 |
| BI (Tm) |
11.22 |
| Cms (mm/N) |
0.16 |
| Rms (kg/s) |
9.6 |
| Le (mH) |
|
Mounting Information
| Overall diameter (mm/in) |
225/8.8 |
| Overall depth (mm/in) |
100/4.16 |
| Cut-out diameter (mm/in) |
187/7.4 |
| Mounting slot dimensions (mm/in) |
6.5/0.26 |
| Number of mounting slots |
8 |
| Mounting slot PCD/ width accross flats |
210/8.3 |
| Unit weight (kg/lb) |
1.52/3.34 |
|
- 93 dB sensitivity 1 W / 1 m
- 200 W + 80 W Power Handling
- 2" + 1.75" Sandwich Voice Coil
- Single Point Source providig coherent Wave Front
- 90° conical Dispersion
- Optimal for compact 2- or 3-way Systems
|
Nominal Specifications
* Nominal Diameter 8“, 200 mm
* Overall Diameter 8.81/8.18“, 223.8/203.9 mm
* Bolt Circle Diameter 8.27“, 210 mm
* Baffle Cutout Diameter 7.24“, 184 mm
* Depth 4.59“, 116.7 mm
* Flange and Gasket Thickness 0.42“, 10.7 mm
Electrical Specifications
* Minimum Impedance 6.4 Ohm
* Nominal Impedance 8 Ohm
* Nominal Power Handling*** 200 W
* Maximum Power Handling**** 400 W
* Sensitivity (1W/1m) 95 dB
* Frequency Range 60 - 5000 Hz
* Voice Coil Diameter 2“, 52 mm
* Winding Material Aluminium
* Former Material Glass Fiber
* Winding Depth 0.76“, 19.3 mm
* Magnetic Gap Depth 0.35“, 9 mm
* Flux Density 1.15 T
THIELE & SMALL Parameters
* Resonant Frequency (fs) 58 Hz
* DC Resistance (Re) 5.1 Ohm
* BL Product (BL) 11.3 N/A
* Diaphragm Mass inc. Airload (Mms) 24 grams
* Mechanical Compliance of Suspension (Cms) 0.31 mm/N
* Rms 0.93 Kg/s
* Electromagnetic Q (Qes) 0.34
* Mechanical Q (Qms) 9.4
* Total Q (Qts) 0.35
* Compliance Equivalent Volume (Vas) 0.62 ft³, 17.6 dm³
* Surface Area of Cone (Sd) 30.8“², 199 cm²
* Maximum Linear Excursion (Xmax)* 8.15 mm
* Xdamage** 13.5 mm
* Coil Inductance (Le) 0.55 mH
* Diaphragm mass (Mmd) 22 g
* Eta Zero 1.02 %
Notes
* *Xmax = [(winding depth - magnetic gap depth) / 2] + (magnetic gap depth / 3)
* **Maximum excursion before permanent damage
* ***2 Hours Test According to AES 2-1984 Rev. 2003
* ****Maximum power is defined as 3dB greater than nominal power
|
- 93 dB sensitivity 1 W / 1 m
- 200 W + 80 W Power Handling
- 2" + 1.75" Sandwich Voice Coil
- Single Point Source providig coherent Wave Front
- 90° conical Dispersion
- Optimal for compact 2- or 3-way Systems
|
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