Features & Applications
Features
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Applications
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Detailed Description SLXD24D/B58
SLXD24D/B58 is a Shure BETA microphone wireless vocal system with two handheld transmitters and a dual-channel SLXD4D receiver. BETA 58A capsules provide supercardioid pickup. This entry describes the original SLX-D generation, not SLX-D+.
SLX-D transmits 24-bit digital audio and provides receiver gain adjustment, frequency scanning and infrared transmitter synchronization. Ethernet supports receiver setup and coordination; it is a control connection rather than a Dante audio output. Frequency band codes must match across the supplied components.
Handhelds operate on AA batteries or an optional supported rechargeable battery, with up to eight hours depending on 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: Original SLX-D user guide · SLX-D specification sheet
Technical Specifications SLXD24D/B58
System configuration |
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|---|---|
| WIRELESS TECHNOLOGY | 24-bit digital SLX-D, original generation |
| RECEIVER | SLXD4D |
| AUDIO CHANNELS | 2 |
| TRANSMITTERS | 2 × SLXD2/B58 |
| CAPSULE | BETA 58A, supercardioid |
| RF BAND | Regional frequency-band SKU; match transmitter and receiver band codes |
| WORKING RANGE | 100 m line of sight; environment-dependent |
System performance |
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| AUDIO RESPONSE | 20 Hz–20 kHz, +1/−2 dB; vocal response depends on capsule |
| DYNAMIC RANGE | 118 dB(A), typical at 1% THD |
| THD | <0.02% |
| LATENCY | 3.2 ms |
| HIGH-PASS FILTER | 150 Hz, −12 dB/oct; off by default |
| MIC OFFSET | 0–21 dB in 3 dB steps |
| RF TUNING STEP | 25 kHz, band-dependent; JB: 125 kHz |
| RF SENSITIVITY | −97 dBm at 10⁻⁵ BER |
| IMAGE REJECTION | >70 dB, typical |
| OPERATING / STORAGE TEMPERATURE | −18 to +50°C / −29 to +74°C; battery characteristics may limit operation |
| TUNING / SIMULTANEOUS USE | Up to 44 MHz tuning bandwidth, band-dependent; up to 32 compatible systems per band under manufacturer conditions |
SLXD4D receiver |
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| DIMENSIONS (H × W × D) | 42 × 393 × 152 mm |
| WEIGHT, WITHOUT ANTENNAS | 1451 g |
| HOUSING | Galvanized steel |
| DC POWER | 15 V DC, 600 mA; supplied external supply |
| RF INPUTS | BNC, 50 Ω; >75 dB typical spurious rejection |
| AUDIO OUTPUTS | Balanced XLR and 6.35 mm outputs per channel |
| GAIN ADJUSTMENT | −18 to +42 dB in 1 dB steps |
| OUTPUT IMPEDANCE, 6.35 MM | 1.3 kΩ balanced; 670 Ω unbalanced |
| OUTPUT IMPEDANCE, XLR | Line: 400 Ω balanced / 200 Ω unbalanced; mic: 150 Ω |
| FULL-SCALE OUTPUT | 6.35 mm: +15 dBV differential / +9 dBV single-ended; XLR line +15 dBV, mic −15 dBV |
| MIC / LINE SWITCH | 30 dB pad |
| CONTROL NETWORK | 10/100 Mbit/s Ethernet; DHCP or manual IP; maximum cable length 100 m |
SLXD2 transmitter |
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| BATTERY | 2 × 1.5 V AA or optional SB903 rechargeable Li-ion |
| BATTERY LIFE | Up to 8 hours; battery and operating conditions dependent |
| PUBLISHED BODY DIMENSIONS (DIAMETER × LENGTH) | 37.1 × 176 mm; assembled dimensions depend on cartridge |
| PUBLISHED BODY WEIGHT | 147 g; assembled weight depends on cartridge and batteries |
| HOUSING | Aluminum |
| MAXIMUM INPUT LEVEL | 8.2 dBV; depends on microphone type |
| ANTENNA | Integrated single-band helical |
| OCCUPIED BANDWIDTH | <200 kHz |
| RF MODULATION | Shure proprietary digital |
| RF POWER | 1 or 10 mW; frequency-band / region dependent |
| COMPATIBILITY | Original SLX-D components; this entry is not an SLX-D+ system |
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