1. Giriş
The dbx 266xs Compressor/Gate is a professional audio dynamics processor designed to enhance sound quality in studio, touring, and portable PA sound systems. It incorporates patented Overeasy® compression technology for smooth, musical performance and AutoDynamic™ attack and release controls for ease of use. This versatile unit supports both stereo and dual-mono operation, offering flexibility for various audio applications. It features professional-grade XLR and 1/4" TRS inputs and outputs, along with comprehensive visual feedback through gain reduction metering and backlit switches.
The 266xs is engineered to manage uneven audio levels, add sustain to instruments like guitars, and enhance drum sounds. It also effectively brings vocals forward in a mix, ensuring greater clarity and presence. This compressor is a valuable tool for achieving a polished and professional sound.
Şəkil 1: Ön view of the dbx 266xs Compressor/Gate, showing controls for two independent channels.
2. Təhlükəsizlik Məlumatı
Bu cihazı istifadə etməzdən əvvəl bütün təhlükəsizlik təlimatlarını oxuyun və başa düşün. Gələcəkdə istifadə üçün bu təlimatı saxlayın.
- Elektrik çarpması riski: Cihazı açmayın. İçəridə istifadəçi tərəfindən təmir edilə bilən hissələr yoxdur. Bütün təmir işlərini ixtisaslı xidmət personalına həvalə edin.
- Güc mənbəyi: Connect the unit only to the specified power supply (100-120V~ 50/60Hz, 15 Watts).
- Nəmlik: Yanğın və ya elektrik şoku riskini azaltmaq üçün bu avadanlığı yağışa və ya nəmə məruz qoymayın.
- Havalandırma: Düzgün havalandırma təmin edin. Havalandırma deliklərini bağlamayın.
- Yerləşdirmə: Cihazı istilik mənbələrinin yaxınlığında və ya birbaşa günəş işığı altında qoymayın.
- Təmizləmə: Yalnız quru parça ilə təmizləyin.
Şəkil 2: Arxa view of the dbx 266xs, showing input/output connections and safety warnings.
3. Xüsusiyyətlər
The dbx 266xs Compressor/Gate offers a range of features designed for professional audio processing:
- Çox yönlü əlaqə: Equipped with quality XLR and 1/4" TRS inputs and outputs for seamless integration into various audio setups.
- Enhanced Vocal Clarity: Optimizes vocals to stand out with improved clarity and presence in a mix.
- Peşəkar Performans: Utilizes patented Overeasy® compression technology and AutoDynamic™ attack and release controls for smooth, musical performance.
- Sidechain Insert: Provides an option for tightening and clarifying frequencies, particularly useful for instruments like bass and kick drum.
- Comprehensive Visual Feedback: Features separate precision LED displays for gain reduction, compression threshold, and gate threshold, enabling quick and accurate setup.
- Çox yönlü tətbiq: Ideal for both studio recording and live performances, enhancing instruments and providing a polished, cohesive mix.
- Dual-Mono or Stereo Operation: Can be configured for two independent mono channels or linked for stereo processing.
- Program-Adaptive Expander/Gate: Ensures smooth release characteristics.
Figure 3: Marketing image illustrating key features and typical applications for the dbx 266xs.
4. Quraşdırma
4.1 Fiziki Quraşdırma
The dbx 266xs is designed for standard 1U rack space installation. Its dimensions are 1.75" H x 5.75" D x 19.00" W. Ensure adequate ventilation around the unit when mounting in a rack.
4.2 Əlaqələr
The rear panel of the 266xs provides all necessary audio input and output connections. Each of the two channels features independent inputs, outputs, and sidechain inserts.
- Girişlər: Səs mənbəyinizi birləşdirin (məsələn, mikser çıxışı, mikrofon öncəsiamplifier) to the 1/4" TRS or XLR inputs. Both balanced and unbalanced connections are supported.
- Çıxışlar: Connect the processed audio signal from the 1/4" TRS or XLR outputs to your next device in the signal chain (e.g., power ampqaldırıcı, qeyd interfeysi).
- Sidechain Insert: Use the 1/4" TRS sidechain insert jack to connect external processing devices (e.g., EQ, de-esser) that will control the compressor/gate. This is a Tip-Ring-Sleeve (TRS) jack where Tip is Send (output) and Ring is Return (input).
- Güc: Connect the supplied AC power cord to the IEC power inlet on the rear panel and then to a suitable AC power outlet (100-120V~ 50/60Hz).
Şəkil 4: Ətraflı view of the rear panel, showing XLR and 1/4" TRS inputs/outputs and sidechain inserts for both channels.
5. Əməliyyat Təlimatları
The dbx 266xs features intuitive controls for each of its two independent channels. Understanding these controls is key to achieving desired audio dynamics.
5.1 Expander/Gate Controls
- Həddi: Sets the level below which the gate will begin to attenuate the signal. Adjust this to eliminate unwanted noise or bleed.
- Nisbət: Determines the amount of attenuation applied once the signal falls below the threshold. Higher ratios result in more aggressive gating.
- Gate LED: Indicates when the gate is active.
5.2 Compressor Controls
- Həddi: Sets the level above which compression begins. Signals exceeding this level will be compressed.
- Nisbət: Controls the amount of compression applied. A ratio of 2:1 means that for every 2dB the input signal goes over the threshold, the output will only increase by 1dB.
- Overeasy® Button: Engages dbx's patented Overeasy compression, providing a smoother, more natural compression curve. When disengaged, the compression is hard-knee.
- Hücum: Determines how quickly the compressor reacts to signals exceeding the threshold. "Fast" settings react almost instantly, while "Slow" settings allow initial transients to pass through.
- Buraxılış: Controls how quickly the compressor returns to its normal state after the signal falls below the threshold. "Fast" settings result in quick release, while "Slow" settings provide a more sustained effect. The 266xs features AutoDynamic™ attack and release for simplified operation.
- Çıxış qazancı: Adjusts the overall output level of the processed signal to compensate for gain reduction caused by compression.
- Qazanc Azaltma Ölçüsü: A series of LEDs indicating the amount of gain reduction (compression) being applied in dB.
5.3 Sistem İdarəetmələri
- Stereo Couple Button: Links Channel One and Channel Two for stereo operation. When engaged, Channel One's controls act as the master for both channels.
- Yan keçmə düyməsi: Bypasses all processing for the respective channel, allowing the input signal to pass directly to the output without any compression or gating.
Figure 5: Front panel controls, illustrating the Expander/Gate, Compressor, and System controls for each channel.
6. Baxım
Proper maintenance ensures the longevity and optimal performance of your dbx 266xs.
- Təmizləmə: Cihazın xarici hissəsini təmizləmək üçün yumşaq, quru bir parça istifadə edin. Maye təmizləyicilərdən və ya aerozollardan istifadə etməyin, çünki onlar örtüyə və ya daxili komponentlərə zərər verə bilər.
- Yaddaş: Uzun müddət istifadə edilmədikdə, cihazı sərin, quru yerdə, birbaşa günəş işığından və həddindən artıq temperaturdan uzaq saxlayın.
- Havalandırma: Həddindən artıq istiləşmənin qarşısını almaq üçün havalandırma deliklərinin toz və zibildən təmizləndiyini mütəmadi olaraq yoxlayın.
- Kabel Bağlantıları: Periodically inspect all audio and power cables for wear or damage. Replace any faulty cables immediately.
7. Giderme
If you encounter issues with your dbx 266xs, refer to the following common troubleshooting steps:
| Problem | Mümkün səbəb/həlli |
|---|---|
| Enerji yoxdur / Cihaz açılmır |
|
| Audio çıxış yoxdur |
|
| Təhrif olunmuş səs |
|
| Gate not working or always open/closed |
|
| Compressor not engaging or over-compressing |
|
If the problem persists after trying these steps, please contact dbx customer support or refer to the official user manual PDF for more detailed troubleshooting.
8. Spesifikasiyalar
Below are the technical specifications for the dbx 266xs Compressor/Gate:
| Kateqoriya | Spesifikasiya |
|---|---|
| Girişlər | 1/4" TRS and female XLR (pin 2 Hot), Electronically balanced/unbalanced, RF filtered |
| Giriş empedansı | Balanced: 50kΩ, Unbalanced: 25kΩ |
| Maksimum Giriş Səviyyə | +22dBu balanced or unbalanced |
| Çıxışlar | 1/4" TRS and female XLR (pin 2 Hot), Impedance-balanced/unbalanced, RF filtered |
| Çıxış Empedansı | Balanced: 100Ω, Unbalanced: 50Ω |
| Max Output Səviyyə | +21dBu balanced/unbalanced into 2kΩ or greater |
| Yan zəncir əlavəsi | 1/4" TRS Phone Jack (Tip=Output, Ring=Input) |
| Sidechain Impedance | Tip: 1kΩ (Output), Ring: 10kΩ (Input) |
| Kompressor | Threshold: -40dBu to +20dBu |
| Nisbət | 1:1 to Infinity:1 (Selectable Overeasy® or Hard-knee) |
| Hücum/buraxılış | Program-dependent AutoDynamic™ |
| Genişləndirici / Qapı | Threshold: -60dBu to +10dBu |
| Expansion Ratio | 1:1 - 4:1 |
| Hücum/buraxılış | Proqramdan asılıdır |
| Sistem Performansı | Bandwidth: 0.35Hz - 90kHz (+0/-3dB) |
| Tezliyə cavab | 0.5Hz - 160kHz (+0/-3dB) |
| Səs-küy | <-93dBu, unweighted (22kHz measurement band) |
| THD+N | 0.04% typical at +4dBu, 1kHz |
| İntermodulyasiya təhrifi | 0.08% typical SMPTE |
| Dinamik diapazon | >113dB, unweighted |
| Qarşılaşma | <-90dB, 20Hz to 20kHz |
| Ümumi rejimdən imtina | >40dB, typically >55dB at 1kHz |
| Stereo birləşmə | True RMS Power Summing™ |
| Enerji təchizatı | 15 Watts, 100VAC 50/60Hz, 230VAC 50/60Hz |
| Əməliyyat Voltage | 100-120V~ 50/60Hz or 230V~ 50/60Hz |
| İşləmə temperaturu | 0°C - 45°C (32°F - 113°F) |
| Fiziki | Dimensions (H x D x W): 1.75" x 5.75" x 19" (4.5cm x 14.6cm x 48.26cm) |
| Vahid Çəki | 4.84 funt / 2.19 kq |
| Göndərmə Çəki | 6.6 funt / 2.99 kq |
Figure 6: Official specifications sheet for the dbx 266xs, detailing electrical and physical characteristics.
9. Zəmanət və Dəstək
dbx products are designed and manufactured to the highest standards. For detailed warranty information, please refer to the warranty card included with your product or visit the official dbx websayt.
For technical support, service, or additional information, please contact dbx customer support:
- Rəsmi İstifadəçi Təlimatı (PDF): PDF təlimatını yükləyin
- dbx Websayt: www.dbxpro.com
- Phone (Sales): 1.801.568.7660
- Phone (Int'l Fax): 1.801.568.7583
- Faks (Satış): 1.801.568.7662
- E-poçt: customer@dbxpro.com
- Ünvan: 8760 S. Sandy Pkwy., Sandy, Utah 84070, USA
