Compact. Distinct. Effective. For those seeking a compact, cost effective speaker, yet do not want to compromise sound quality for space, the Alpha B1 is the answer. We begin with a solid modular
bass-reflex cabinet and load it with our newly designed, hand-built drivers and
crossover network. The 5.25-inch
woofer paired with a single .75-inch
ferrofluid-cooled
tweeter creates a 2-way design that is truly remarkable; and professional audio critics agree. Match the Alpha B1 to one of our compact
subwoofers to create a powerful
soundstage and discover for yourself why the Alpha B1 is among our best selling speakers.
Alpha B1 Monitor Specifications
| Frequency Range |
| On Axis @ 0° ±3dB | 65-21,000 Hz |
| Off Axis @ 30° ±1.5dB | 65-10,000 Hz |
| Lf Cutoff -10dB | 55Hz |
Sensitivity
1w (2.83V) @ 1m, IEC-filtered Pink Noise, C-weighted |
| Anechoic Chamber | 89 dB |
| Typical Listening Room | 91 dB |
| Impedence |
| Nominal | 6 Ohms |
| Minimum | 4 Ohms |
Input Power
RMS, Clipping < 10% of the Time |
| Recommended | 15-80 Watts |
| Program | 60 Watts |
| Acoustic Design |
| Tweeter (Nominal) | 3/4" (19 mm)
Aluminum Dome with Ferrofluid |
| Woofer (Nominal) | 5 1/4" (130 mm)
Injection Molded
Metalized Polypropylene Cone
Damped Rubber Surround |
| Crossover | 3,000 Hz, B3 |
| Internal Volume Design Type | 0.29 cu ft (8.0 liter)
Bass reflex
1 1/2" Rear Port
Video Shielded |
| Size (W x H x D) |
| Millimeters | 179 x 300 x 245 mm |
| Inches | 7 1/16 x 11 7/8 x 9 5/8" |
| Net Weight |
| Kilograms | 4.0 kg/each |
| Pounds | 8.8 lb /each |
| Shipping Weight |
| Kilograms | 9.7 kg/each |
| Pounds | 21.4 lb /each |
| Finish |
| Black Ash, Maple or Sienna |
| Features |
| 5-way Gold-plated Binding Posts
Keyhole Slot
1/4-20 Threaded Brass Insert
Aluminum Grille
Clear Rubber Bumpers |
