เพาเวอร์แอมป์ QSC ISA450 เครื่องขยายเสียง 2 ชาแนล 260 วัตต์ ที่ 8 โอมห์ ISA450 Power amplifier จากแบรนด์ QSC
QSC ISA450
Power Amplifier
คุณสมบัติ
- Rear panel gain controls for tamper resistance; 2-dB detents allow for quick and repeatable settings
- XLR and detachable Euro-style input connectors
- DataPort V2 for use with DPV2-compatible signal processing accessories (XC-3, SF-3, LF-3) and DSP-3/DSP-4 (with external power supply)
- Independent defeatable clip limiters for reduced distortion
- Selectable high-pass filters (30 Hz or 70 Hz) protect speakers and prevent speaker transformer saturation with minimal effect on program material
- Front panel LED indicators include power, signal, and clip
- Covered barrier strip output connectors for safety agency compliance
- Automatic on-demand variable-speed fan: quiet normal operation, with maximum cooling when needed
- Rear-to-front air flow helps keep equipment racks cool
- Stereo, bridge, or parallel operating modes
- Comprehensive protection circuitry including DC, infrasonic, thermal overload, and short circuit protection
- 3-year warranty plus optional 3-year extended service contract
สเปค
SPECIFICATIONS |
ISA450 |
|
OUTPUT POWER PER CHANNEL, STEREO MODE, both channels driven |
|
|
8Ω, 20 Hz–20 kHz 0.1% THD |
260 W |
|
DIRECT POWER PER CHANNEL, STEREO MODE |
|
70V, 20 Hz–20 kHz +0/-0.3 dB 0.5% THD |
– |
|
TRANSFORMER-ISOLATED OUTPUT POWER PER CHANNEL, STEREO MODE |
|
|
70V or 100V, 50 Hz–16 kHz 0.5% THD |
– |
|
OUTPUT POWER, BRIDGED MONO MODE |
|
| 8Ω, 1 kHz 0.1% THD 4Ω 1 kHz 1% THD |
900 W |
|
|
TRANSFORMER-ISOLATED OUTPUT POWER, BRIDGED MONO MODE |
|
140V or 200V, 50 Hz-16 kHz 0.5% THD |
– |
|
Signal to Noise (20 Hz-20 kHz) |
100 dB |
|
Distortion (SMPTE-IM) |
Less than 0.01% |
|
Input Sensitivity @ 8 ohms |
1.07 V |
|
Maximum Voltage Gain |
44.7× |
|
Output Circuitry |
Class AB |
|
THX Approved |
Yes |
|
Weight – Net |
42 lb |
|
Weight – Shipping |
48 lb |
|
|
ALL MODELS |
|
Distortion (Typical) |
Less than 0.03% THD, 4 ohms and 8 ohms Less than 0.03% THD, 4 ohms and 8 ohms |
|
Frequency Response |
ISA 280, 450, 750 and 1350: |
|
Damping Factor with 8Ω Load (direct outputs) |
Greater than 200; ISA 1350 greater than 250 |
|
Output Regulation (isolated outputs) |
Less than 1.5 dB |
|
Input Impedance |
10 kΩ unbalanced, 20 kΩ balanced |
|
Input Clipping |
10 V rms (+22 dBu) |
|
Cooling |
Continuously variable speed fan, back-to-front air flow |
|
Connectors, each channel |
Input: Active balanced; 3-pin Euro-style detachable terminal block and XLR (pin 2+) |
|
Controls |
Front: AC switch |
|
Indicators |
PWR-ON: Green LED; SIGNAL: Green LED (1 per channel); |
|
Dimensions (HWD) inches |
5.25 x 19 x15.9 / 3RU |
|
Dimensions (HWD) mm |
133 x 483 x 400 / 3RU |
|
Amplifier Protection |
Full short circuit, open circuit, thermal, ultrasonic, and RF protection; |
|
Power Requirements |
120 or 230 VAC, 50–60 Hz |
|
Load Protection |
On/off muting; Triac crowbar: ISA 750, 1350, and 800Ti; AC coupling: ISA 280, 300Ti, 450, and 500Ti |
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