Features & Applications
Features
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Applications
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Detailed Description BLX288A/SM58
BLX288A/SM58 is a Shure BLX wireless vocal system with two handheld transmitters and a dual-channel BLX88 receiver. SM58 capsules provide cardioid vocal pickup. BLX uses analog wireless transmission.
QuickScan helps locate an available channel, with simple transmitter matching and receiver-level indication. The rack receiver has removable antennas and detailed metering; the dual BLX88 uses a compact desktop format. Frequency band codes must match across the supplied components.
BLX2 handhelds use two AA alkaline batteries, with up to fourteen hours under the manufacturer’s conditions. Balanced receiver outputs connect to a mixer or microphone input. Published operating range is line-of-sight and depends on the RF environment. The table separates system audio performance, receiver specifications and transmitter-body data from capsule-dependent response.
Manufacturer documents: BLX receiver / system guide · Manufacturer product overview
Technical Specifications BLX288A/SM58
System configuration |
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|---|---|
| WIRELESS TECHNOLOGY | Analog BLX wireless |
| RECEIVER | BLX88 |
| AUDIO CHANNELS | 2 |
| TRANSMITTERS | 2 × BLX2/SM58 |
| CAPSULE | SM58, cardioid |
| RF BAND | Regional frequency-band SKU; match transmitter and receiver band codes |
| WORKING RANGE | 91 m line of sight; environment-dependent |
System performance |
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| AUDIO RESPONSE | 50 Hz–15 kHz; microphone-dependent |
| THD | 0.5%, typical; ±33 kHz deviation, 1 kHz tone |
| DYNAMIC RANGE | 100 dB(A), typical |
| OPERATING TEMPERATURE | −18 to +57°C; battery characteristics may limit this range |
BLX88 receiver |
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| OUTPUT CONNECTORS | XLR and 6.35 mm per channel |
| OUTPUT IMPEDANCE | XLR: 200 Ω; 6.35 mm: 50 Ω |
| OUTPUT LEVEL, XLR | −27 dBV |
| OUTPUT LEVEL, 6.35 MM | −13 dBV |
| OUTPUT MEASUREMENT CONDITION | ±33 kHz deviation, 1 kHz tone, 100 kΩ load |
| RF SENSITIVITY | −105 dBm for 12 dB SINAD, typical |
| IMAGE REJECTION | >50 dB, typical |
| DIMENSIONS (H × W × D) | 38 × 308 × 101 mm |
| WEIGHT | 429 g |
| HOUSING | Molded ABS |
| DC POWER | 12–15 V DC, 320 mA |
BLX2 handheld transmitter |
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| INPUT LEVELS | 0 dB setting: −20 dBV maximum; −10 dB setting: −10 dBV maximum |
| GAIN ADJUSTMENT | 10 dB |
| RF POWER | 10 mW typical; region-dependent |
| DIMENSIONS (LENGTH × DIAMETER) | 224 × 53 mm |
| WEIGHT | 218 g without batteries |
| HOUSING | Molded ABS |
| BATTERY | 2 × 1.5 V LR6 AA alkaline |
| BATTERY LIFE | Up to 14 hours on alkaline batteries |
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