Alpha LR1 Monitor
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.
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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" (90mm) Metalized Polypropylene Cone Rubber Surround |
| Crossover | 3,000Hz, B3 |
| Internal Volume Design Type | 0.07 cu ft (12.8 liter) Bass Reflex Video Shielded |
| Size (W x H x D) | |
| Millimeters | 118 x 182 x 162 mm |
| Inches | 4 3/4 x 7 1/4 x 6 3/8" |
| Net Weight | |
| Kilograms | 1.9 kg/each |
| Pounds | 4.1 lb/each |
| Shipping Weight | |
| Kilograms | 4 kg/pair |
| Pounds | 8.8 lb/pair |
| Finish | |
| Black Ash, Sienna or Dark Cherry | |
| Features | |
| 5-way Gold-plated Binding Posts Keyhole Slot 1/4 20 Threaded Brass Insert Aluminum Grille Clear Rubber Bumpers | |
