The Alpha LR1 represents the smallest speaker in PSB offerings and still manages to deliver unwavering performance. As "sub/satellite" speaker packages evolved as a popular choice for home theaters, PSB engineers worked to create an economic and effective solution. The Alpha LR1 can be wall-mounted, placed on stands or fit into most entertainment centers to deliver maximum performance while still remaining aesthetically pleasing. The true 2-way design employs a single 3.5-inch mid-woofer paired with a single .75-inch
ferrofluid-cooled
tweeter. The result is an extremely tight sound with excellent
imaging characteristics.
Alpha LR1 Monitor Specifications
| Frequency Range |
| On Axis @ 0° ±3dB | 100-21,000 Hz |
| Off Axis @ 30° ±3dB | 100-10,000 Hz |
| Lf Cutoff -10dB | 90 Hz |
Sensitivity
1w (2.83V) @ 1m, IEC-filtered Pink Noise, C-weighted |
| Anechoic Chamber | 85 dB |
| Typical Listening Room | 87 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) | 3 1/2" (165mm)
Injection Molded
Metalized Polypropylene Cone
Damped Rubber Surround |
| Crossover | 3,000Hz, B3 |
| Internal Volume Design Type | 0.07 cu ft (2.0 liter)
Acoustic Suspension
Sealed
Video Shielded |
| Size (W x H x D) |
| Millimeters | 108 x 181 x 162 mm |
| Inches | 4 1/4 x 7 1/8 x 6 3/8" |
| Net Weight |
| Kilograms | 1.5 kg/each |
| Pounds | 3.3 lb/each |
| Shipping Weight |
| Kilograms | 3.5 kg/pair |
| Pounds | 7.6 lb/pair |
| Finish |
| Black Ash or White |
| Features |
| 5-way Gold-plated Binding Posts
Keyhole Slot
1/4 20 Threaded Brass Insert
Aluminum Grille
Clear Rubber Bumpers |
