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 |
Μεγάφωνο 8" με μαγνήτη νεοδυμίου, απόκριση συχνοτήτων 65 - 3000Hz, 400 W / 16Ohm, ευαισθησία 94dB 1W/1m, 1,8Kg. |
Nominal Specifications
* Nominal Diameter 8“, 200 mm
* Overall Diameter 8.81/8.18“, 223.8/207.9 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 5.9 Ohm
* Nominal Impedance 8 Ohm
* Nominal Power Handling*** 200 W
* Maximum Power Handling**** 400 W
* Sensitivity (1W/1m) 92 dB
* Frequency Range 80 - 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 0.27“, 7 mm
* Flux Density 1.05 T
THIELE & SMALL Parameters
* Resonant Frequency (fs) 74 Hz
* DC Resistance (Re) 5.1 Ohm
* BL Product (BL) 8.9 N/A
* Diaphragm Mass inc. Airload (Mms) 23 grams
* Mechanical Compliance of Suspension (Cms) 0.2 mm/N
* Rms 2 Kg/s
* Electromagnetic Q (Qes) 0.69
* Mechanical Q (Qms) 5.30
* Total Q (Qts) 0.61
* Compliance Equivalent Volume (Vas) 0.32 ft³, 9 dm³
* Surface Area of Cone (Sd) 27.5“², 177.3 cm²
* Maximum Linear Excursion (Xmax)* 8.48 mm
* Xdamage** 12.9 mm
* Coil Inductance (Le) 0.6 mH
* Diaphragm mass (Mmd) 21.6 g
* Eta Zero 0.5 %
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
| BETA Serie 225W- 350W
Recommended for professional audio mid-bass applications or as a woofer in vented enclosures. Also suitable
as a mid-bass speaker in sealed enclosures.
SPECIFICATION
- Nominal Basket Diameter 8“, 203.2 mm
- Nominal Impedance 8 ohms
- Power Rating Watts 225 W / Music Program 450 W
- Resonance 65 Hz
- Usable Frequency Range 78 Hz - 4.5 kHz
- Sensitivity 95.1
- Magnet Weight 34 oz.
- Gap Height 0.312“, 7.92 mm
- Voice Coil Diameter 2“, 50.8 mm
THIELE & Small Parameters
- Resonant Frequency (fs) 65 Hz
- DC Resistance (Re) 5.99
- Coil Inductance (Le) 0.49 mH
- Mechanical Q (Qms) 4.95
- Electromagnetic Q (Qes) 0.42
- Total Q (Qts) 0.38
- Compliance Equivalent Volume (Vas) 23.3 liters / 0.82 cu. ft.
- Peak Diaphragm Displacement Volume (Vd) 63 cc
- Mechanical Compliance of Suspension (Cms) 0.37 mm/N
- BL Product (BL) 9.6 T-M
- Diaphragm Mass inc. Airload (Mms) 16 grams
- Efficiency Bandwidth Product (EBP) 156
- Maximum Linear Excursion (Xmax) 3.0 mm
- Surface Area of Cone (Sd) 210.0 cm²
- Maximum Mechanical Limit (Xlim) 7.4 mm
MOUNTING Information
- Recommended Enclosure Volume
Sealed 5.7-9.9 liters/0.2-0.35 cu.ft.
Vented 8.5-19 liters/0.3-0.67 cu.ft.
- Overall Diameter 8.24“, 209.2 mm
- Baffle Hole Diameter 7.13“, 181 mm
- Front Sealing Gasket fitted as standard
- Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.22“, 5.5 mm
- Mounting Holes B.C.D. 7.75“, 196.9 mm
- Depth 3.5“, 89 mm
MATERIALS of Construction
- Aluminum voice coil
- Polyimide former
- Ferrite magnet
- Vented core
- Pressed steel basket
- Paper Cone
- Cloth cone edge
- Solid composition pape dust cap
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- 2'' voice coil Kapton former
- Ventilated magnet and voice coil to reduce power compression
- 94.6 dB sensitivity
Manual/Εγχειρίδιο
| | Weight | 1.50 kg | 1.52 kg | 2.20 kg | 1.80 kg | 1.50 kg | 1.60 kg |
| Dimensions | Μ/Δ | Μ/Δ | Μ/Δ | Μ/Δ | Μ/Δ | Μ/Δ |
| Additional information |
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