เพาเวอร์แอมป์ QSC GXD8 เครื่องขยายเสียง 2 ชาเเนล คลาส D 4500 วัตต์ QSC GXD8 เพาเวอร์แอมป์ ขยายเสียง จากแบรนด์ QSC
QSC GXD8
Professional Power Amplifiers
As part of the E Series Entertainment System, the GXD amplifiers are ideal for entertainment and production applications. With integral signal processing and outstanding performance, the GXD amplifiers express all the hallmarks of the QSC brand – professional audio quality and long-term reliability.
Add contemporary styling, multiple routing options, light weight, digital signal processing and advanced protection circuitry, and the GXD Series clearly represents real value – something everyone can use. The GXD series is optimized for use with 8 and 4 ohm loudspeaker loads. GXD amplifiers deliver just the right amount of power to the most popular speakers used by entertainers and production professionals.
คุณสมบัติ
- High peak output power with up to 1600 watts from the GXD 4 and a whopping 4500 Watts from the GXD 8.
- Power levels matched to the most popular loudspeakers and optimized for maximum real-world headroom into 4Ω and 8Ω speaker systems.
- Class D output stage with a universal power supply for high performance and efficiency.
- Extensive and powerful loudspeaker processing built in. Includes high and low-pass filters, 4-band parameteric EQ, limiting, and delay.
- E Series Entertainment System DSP Tunings are now available for GXD processing amplifiers:
- Visit the GXD Firmware Updater to download and update
- Large LCD display simplifies amplifier setup and indicates amp status.
- Inputs: Parallel XLR and 1/4” TRS connectors for compatibility with any source while providing convenient loop-thru capability.
- Precision rotary encoders for gain and DSP parameter control.
- Outputs: Professional binding post and NL4 connectors (compatible with NL2) provide for mono and bi-amp speaker connections.
- Digital limiting automatically protects the amplifier from damage due to temperature rise or overdrive.
- Adjustable speaker protection to match your loudspeaker’s power and impedance.
- Front panel LEDs indicate signal presence, input overload, and amplifier clipping.
สเปค
SPECIFICATIONS |
GXD 4 |
GXD 8 |
| 8Ω dynamic, both channels driven | 600 watts per channel | 1500 watts per channel |
| 4Ω dynamic, both channels driven | 800 watts per channel | 2250 watts per channel |
| 8Ω continuous, both channels driven | 400 watts per channel | 800 watts per channel |
| 4Ω continuous, both channels driven | 600 watts per channel | 1200 watts per channel |
| Distortion (typical) 1 kHz at full rated power |
< 1% THD | |
| Signal to Noise (A weighted, 20 Hz–20 kHz) |
100 dB | |
| Input Sensitivity | 1.2 Vrms, 3.9 Vrms | |
| Maximum Voltage Gain | 33.5 dB | 36.5 dB |
| Output Circuitry | Class D | |
| Power Requirements | 1/8 power at 4Ω | |
| – 100 V AC | 3.4 A | 6.2 A |
| – 120 V AC | 2.9 A | 5.6 A |
| – 230 V AC | 1.6 A | 3.2 A |
| Frequency Response (20 Hz–20 kHz) |
+0.7 dB, -0.8 dB | |
| Dynamic Headroom (4Ω) | 1.25 dB | 2.73 dB |
| Damping Factor (8Ω) | 100 | |
| Input Impedance | 20 kΩ (balanced), 10 kΩ (unbalanced) | |
| Maximum Input Level | +23.5 dBu | |
| Input Connectors (each channel) |
3-pin XLR/F / 1/4″ TRS, balanced | |
| Output Connectors (each channel) |
NL4, binding posts NL4 pinout: • Channel A on 1+, 1-; Channel B on 2+, 2- • Channel B on 1+, 1- |
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| Amplifier and Load Protection | Short circuit, open circuit, thermal, RF protection Load protected against DC faults |
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| Front Panel Controls and Indicators | 2 × Rotary Encoders 3 × Operational buttons (HOME, ENTER, EXIT) 2 × Green Signal LEDs indicate signal presence 2 × Red A/D Clip LEDs indicate input over-drive and/or amplifier current clipping Blue Power LED ring indicates AC on 2.12″ × 1.0″, 256 × 128 pixel LCD |
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| DSP Functions | High-pass filter, 4th-order Linkwitz-Riley, adjustable frequency 20 Hz to 4 kHz Low-pass filter, 4th-order Linkwitz-Riley, adjustable frequency 60 Hz to 4 kHz 4-band parametric EQ with variable frequency, gain, and bandwidth Peak limiter with power, agressiveness, and impedance selection Delay 50 msec max. |
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| Dimensions (HWD) | 3.5″ (2 RU) × 19″ × 10.2″ (89 mm × 483 mm × 259 mm) | |
| Weight (Net) | 11.3 lb (5.1 kg) | 13.2 lb (6.0 kg) |
| Weight – Shipping | 15.4 lb (7.0 kg) | 17.3 lb (7.8 kg) |
| Agency Approvals | UL, CE, RoHS/WEEE compliant | |
| Carton and Contents | Power cable and quick start guide | |
