FOX DI-1 Direct Box——S-Track S TRACK SCIENCE TECHNOLOGY CO., LTD

صندوق فوكس دي آي-1 المباشر

This is a professional single-channel passive impedance converter (Direct Box) designed for live performances, recording studios, and broadcast applications. The unit employs high-quality audio transformers to convert high-impedance unbalanced inputs to low-impedance balanced outputs, supporting long-distance cable transmission (>100 meters) without distortion while effectively eliminating ground loop noise, hum, and EMI/RFI interference. Its passive design requires no external power supply, offering plug-and-play functionality for connecting high-impedance sources like guitars, basses, and keyboards to professional mixing consoles or PA systems. The unit delivers an exceptional balance of audio fidelity and durability, ensuring natural tonal reproduction and reliable performance.

أنشرها:

  • FOX DI-1 Direct Box

وصف المنتج

مميزات المنتج

  • Single-channel passive design: Operates passively without batteries or power supply, supporting high-impedance input to balanced output conversion;
  • Premium transformer: Built-in top-tier 10:1 audio transformer delivers flat frequency response and ultra-low distortion for high-fidelity signal transmission;
  • Noise Isolation: >60 dB ground loop suppression with built-in ground lift switch eliminates 50/60 Hz hum and RF interference;
  • Thru output: 1/4″ parallel Thru jack facilitates chaining amplifiers or effects processors;
  • Flexible Input: Compatible with 1/4″ TS high-impedance plugs for instrument-level sources;
  • Rugged Construction: Heavy-duty steel chassis with internal shielding, shock-resistant and durable for touring and stage environments;
  • Impedance Matching: 133:1 impedance ratio for optimized level conversion (-20 dB shift), preventing signal overload;
  • Compact Portability: Lightweight design for easy transport and integration into any audio system.

معلمات المنتج

فئة عنصر المعلمة وصف المعلمة
الأداء الصوتي Number of Channels 1 (Mono)
استجابة التردد 20 Hz~20 kHz (±1 dB)
التشوه التوافقي الكلي (THD) < 0.01% (1 kHz, 0 dBu input)
نسبة الإشارة إلى الضوضاء (SNR) > 100 dB (A-weighted)
الحد الأقصى لمستوى الإدخال +20 dBu
الحد الأقصى لمستوى الإخراج 0 dBu (balanced output)
Impedance Ratio (Input/Output) 133:1 (high-impedance input to low-impedance output)
Phase Shift < 5° (full frequency range)
النطاق الديناميكي > 120 dB
العزل وكبح الضوضاء Transformer Type Jensen JT-DB-E Class 10:1 audio transformer (nickel core, Faraday shielded)
جهد العزل > 1 kV (input/output)
Ground Loop Noise Suppression > 60 dB (50/60 Hz); > 40 dB EMI/RFI
أقصى مسافة إرسال > 100 m (balanced XLR cable, no noticeable attenuation)
Ground Lift Independent switch to eliminate ground loop hum
Interfaces and Connections موصلات الإدخال 1 x 1/4″ TS female jack (high impedance, unbalanced)
موصلات الإخراج 1 x XLR male connector (balanced, low impedance, Pin 2 hot)
Thru Output 1 x 1/4″ TS female jack (parallel output)
Compatible Sources For high-impedance devices like guitars, basses, keyboards, synthesizers, etc.
البيئة المادية والطبيعية الأبعاد (الطول × العرض × الارتفاع) 70 مم × 36 مم × 100 مم
وزن 0.45 كجم
مواد التغليف Heavy-duty 16-gauge steel enclosure, powder-coated
درجة حرارة التشغيل -10°C~60°C
درجة حرارة التخزين -40°C~85°C
رطوبة 0%~95% (non-condensing)
الطاقة والسلامة متطلبات الطاقة None (fully passive design)
Safety Features Short-circuit protection; phantom power safe (no internal circuitry)

سيناريو التطبيق

تنزيلات ذات صلة

اسم مقاسوقتتحميل
FOX DI-1 Direct Box Datasheet 2026-03-04
FOX DI-1 Direct Box User Manual 2026-03-04

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