1. Kupu Whakataki
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.

Whakaahua 1: Mua view of the dbx 266xs Compressor/Gate, showing controls for two independent channels.
2. Nga korero haumaru
Tena panuihia me te mohio ki nga tohutohu haumaru katoa i mua i te whakahaere i tenei taputapu. Puritia tenei pukapuka hei tohutoro a meake nei.
- Mōrea o te Ru Hiko: Kaua e whakatuwheratia te waahanga. Kaore he waahanga e taea ana e te kaiwhakamahi ki roto. Tukuna nga ratonga katoa ki nga kaimahi ratonga whai tohu.
- Puna Hiko: Connect the unit only to the specified power supply (100-120V~ 50/60Hz, 15 Watts).
- makuku: Hei whakaiti i te tupono o te ahi, te wiri hiko ranei, kaua e tukuna tenei taputapu ki te ua, ki te makuku ranei.
- Whakahau: Me whakarite kia tika te hau. Kaua e araia nga whakatuwheratanga hau.
- Turanga: Kaua e waiho te taputapu ki te taha o ngā pūtake wera, ki te rā tika rānei.
- Te horoi: Horoia ki te kakahu maroke anake.

Whakaahua 2: Whakamuri view of the dbx 266xs, showing input/output connections and safety warnings.
3. Nga ahuatanga
The dbx 266xs Compressor/Gate offers a range of features designed for professional audio processing:
- Hononga maha: 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.
- Mahinga Ngaio: 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.
- Taupānga Whānui: 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. Tatūnga
4.1 Tāutanga Tinana
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 Hononga
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.
- Ngā Tāuru: Connect your audio source (e.g., mixer output, microphone preamplifier) to the 1/4" TRS or XLR inputs. Both balanced and unbalanced connections are supported.
- Putanga: Connect the processed audio signal from the 1/4" TRS or XLR outputs to your next device in the signal chain (e.g., power ampkaiwhakaora, atanga tuhi).
- 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).
- Mana: 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).

Whakaatu 4: Taipitopito view of the rear panel, showing XLR and 1/4" TRS inputs/outputs and sidechain inserts for both channels.
5. Nga Tohutohu Whakahaere
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
- Paepae: Sets the level below which the gate will begin to attenuate the signal. Adjust this to eliminate unwanted noise or bleed.
- ōwehenga: 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
- Paepae: Sets the level above which compression begins. Signals exceeding this level will be compressed.
- ōwehenga: 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.
- Whakaeke: 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.
- Tuku: 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.
- Hua Putanga: Adjusts the overall output level of the processed signal to compensate for gain reduction caused by compression.
- Mahinga Whakaitinga mita: A series of LEDs indicating the amount of gain reduction (compression) being applied in dB.
5.3 Mana Whakahaere
- 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.
- Pātene karohia: 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. Tiaki
Proper maintenance ensures the longevity and optimal performance of your dbx 266xs.
- Te horoi: Use a soft, dry cloth to clean the exterior of the unit. Do not use liquid cleaners or aerosols, as they may damage the finish or internal components.
- Rokiroki: Ki te kore e whakamahia mō te wā roa, rongoatia te taputapu ki te wāhi hauhautanga, maroke, kia matara atu i te rā tika me te pāmahana tino kino.
- Whakahau: Me tirotiro i nga wa katoa kei te marama nga tuwhera o te hau i te puehu me te otaota kia kore ai e wera rawa.
- Hononga taura: Periodically inspect all audio and power cables for wear or damage. Replace any faulty cables immediately.
7. Te Raru
If you encounter issues with your dbx 266xs, refer to the following common troubleshooting steps:
| Raruraru | Te Take Taea / Rongoa |
|---|---|
| Karekau he hiko / Waeine e kore e huri |
|
| Kaore he putanga ororongo |
|
| Ororongo rereke |
|
| 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. Whakatakotoranga
Below are the technical specifications for the dbx 266xs Compressor/Gate:
| Kāwai | Whakatakotoranga |
|---|---|
| Nga whakaurunga | 1/4" TRS and female XLR (pin 2 Hot), Electronically balanced/unbalanced, RF filtered |
| Impedance Tāuru | Balanced: 50kΩ, Unbalanced: 25kΩ |
| Taumata Whakauru Max | +22dBu balanced or unbalanced |
| Nga Putanga | 1/4" TRS and female XLR (pin 2 Hot), Impedance-balanced/unbalanced, RF filtered |
| Putanga Putanga | Balanced: 100Ω, Unbalanced: 50Ω |
| Taumata Huaputa Max | +21dBu balanced/unbalanced into 2kΩ or greater |
| Te Whakaurunga Sidechain | 1/4" TRS Phone Jack (Tip=Output, Ring=Input) |
| Sidechain Impedance | Tip: 1kΩ (Output), Ring: 10kΩ (Input) |
| Kōpeke | Threshold: -40dBu to +20dBu |
| ōwehenga | 1:1 to Infinity:1 (Selectable Overeasy® or Hard-knee) |
| Whakaeke / Tuku | Program-dependent AutoDynamic™ |
| Whakawhanui/Kuwaha | Threshold: -60dBu to +10dBu |
| Expansion Ratio | 1:1 ki te 4:1 |
| Whakaeke / Tuku | Ka whakawhirinaki ki te kaupapa |
| Mahinga Pūnaha | Bandwidth: 0.35Hz - 90kHz (+0/-3dB) |
| Whakautu auau | 0.5Hz - 160kHz (+0/-3dB) |
| Haruru | <-93dBu, unweighted (22kHz measurement band) |
| THD+N | 0.04% typical at +4dBu, 1kHz |
| Whakawhitiwhiti Whakawhiti | 0.08% typical SMPTE |
| Awhe Hihiko | >113dB, unweighted |
| Whakawhitiwhiti | <-90dB, 20Hz to 20kHz |
| Whakakore Aratau noa | >40dB, typically >55dB at 1kHz |
| Whakahononga Stereo | True RMS Power Summing™ |
| Tuku Hiko | 15 Watts, 100VAC 50/60Hz, 230VAC 50/60Hz |
| Mahinga Mahi Voltage | 100-120V~ 50/60Hz or 230V~ 50/60Hz |
| Te Waahi Mahi | 0°C ki te 45°C (32°F ki te 113°F) |
| Tinana | Dimensions (H x D x W): 1.75" x 5.75" x 19" (4.5cm x 14.6cm x 48.26cm) |
| Taumaha Waeine | 4.84 lbs / 2.19 kg |
| Taumaha Tuku | 6.6 lbs / 2.99 kg |

Figure 6: Official specifications sheet for the dbx 266xs, detailing electrical and physical characteristics.
9. Pūtāhui me te Tautoko
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 webpae.
For technical support, service, or additional information, please contact dbx customer support:
- Pukapuka Kaiwhakamahi Whaimana (PDF): Tikiake PDF Manual
- dbx Webpae: www.dbxpro.com
- Phone (Sales): 1.801.568.7660
- Phone (Int'l Fax): 1.801.568.7583
- Waeatuhi (Hokona): 1.801.568.7662
- Īmēra: kiritaki@dbxpro.com
- Wāhi noho: 8760 S. Sandy Pkwy., Sandy, Utah 84070, USA