The QSC ISA800Ti 70V Commercial Power Amplifierfrom QSC ISA800Ti 70V Commercial Power Amplifieris a 3RU rackmount power amplifier, equipped with an internal 70V transformer and designed specifically for sound contractors. It can be used as a low-impedance solution rated for 2-Ohm operation at 1200W per side, or 8 Ohms at 450W per side. The versatile loading options, feature set, and protection circuitry, in addition to the built-in HD-15 DataPort V2 DSP interface capability, ensures a high-value, cost-effective solution for budget-minded installations.

The ISA800Ti is housed in a rugged all-metal chassis and features rear-panel gain controls for tamper-resistant operation with 2 dB detents for quick and repeatable settings. The inputs include both XLR and detachable Euro-style connectors and the outputs feature covered barrier-strip connectors for full safety agency compliance.

450W Per Channel at 8 Ohms    Built-In 70V Transformer    25, 70, and 100V Outputs    Protection Circuitry    Built-In HD-15 DataPort V2    DSP Interface Capability    Rugged All-Metal Chassis    Rear Panel Gain Controls    XLR and Detachable Euro-Style Inputs    Covered Barrier-Strip Connector Outputs

High-output stereo power amplifier low-impedance contractor installation

Built-in 70V transformer with 25, 70, 100V and low-impedance outputs, all available simultaneously

Fully isolated 25, 70, and 100V outputs, barrier strip connection determines output mode

Rear-panel gain controls for tamper-resistant operation with 2 dB detents for quick and repeatable settings

DataPort V2 HD-15 connector for use with DPV2-compatible external signal processing accessories

Full short-circuit, open-circuit, thermal, ultrasonic, and RF protection

Independent defeatable clip limiters for reduced distortion, selectable 30 Hz or 70 Hz high-pass filters protect speakers and prevent speaker transformer saturation

Front-panel indicators include power, signal, and clipping; Stereo, Bridge and Parallel operating modes

Automatic variable-speed fan for quiet normal operation with maximum cooling and rear-to-front air flow

XLR and detachable Euro-style input connectors and covered barrier-strip output connectors with full safety agency compliance

Related Questions and Answers

Q: 1. how many speakers can I connect per channel?

A: The QSC GX3 features 2 physical speaker outputs designed for optimal operation at 8 ohms. The unit is able to operate safely with a 4 ohm load as well which will give you a higher wattage output per channel. You are able to connect multiple speakers to each channel in parallel, but should be careful not to exceed the wattage and impedance ratings listed by the manufacturer.

Q: 2. How do I know what size amp I need for a warehouse PA system?

A: The wattage required from an amp for a PA system depends on a few factors including the type of speakers used, the amount of speakers, and the wattage requirements per speaker. If you are uncertain of your needs, please give our sales team a call with the above information and we can help you select the proper amplifier.

Q: 3. Can this amp be used in a home theater setup?

A: It can, if your home is sufficiently large. The amp is designed for speakers up to 300W (most home theater speakers don't go above 100W, which would fill a decent sized living room with sound.) So the GX3 would work, but you also may find it overkill (and if your speakers are too small or rated at 16 Ohm, you may blow your speakers if you turn the amp volume up too high.)

Q: 4. Im frm Philippines.. What is the right wattage/amperes of transformer be use to power this Gx3

A: You would need a step down transformer such as this BH #SEST1500UD.

Q: 5. Is there a fan replacement for this?

A: I would contact Bogen directly at 800-999-2809 or through their website at www.bogen.com for a fan replacement for this power amplifier.

Q: 6. CAN i connect 4 speakers 8Ohm 150w rms to each channel in parallel mode ?if not which is the best way to connect 4 speakers/channel, not to overload the machine or burn the speakers?

A: Connecting four 8 ohm speakers to a channel will present a 2 ohm load which the GXD 8 is not designed to handle. A minimum of 4 ohms per channel for proper operation is recommended by the manufacturer.

Q: 7. I wish to use this amp with (4) speakers inside a small (1,500 sqft) fun center lobby with 10ft. ceilings. Would someone be able to suggest a good speaker match? Thanx.

A: Thank you for your question. Please give us a call at 800.606.6969 so that we can better assist you in getting the right speakers for your needs.

Q: 8. Can you hear the fans?

A: Hi, yes but the fans are designed to be very quiet on the QSC GXD 8. Thank you for shopping at B&H!

Q: 9. hello it can be connected to a voltage 220?

A: The QSC GX3 operates at 120V AC. You will need to use a step-down transformer to use it with 220V AC such as the Sevenstar ST-500 Step Up/Step Down Transformer - 500W (B&H # SEST500UD) or Watson Voltage Converter - 500 Watt Max (B&H # WAVCGSD500).

Q: 10. Is it possible to output low impedance on channel one and high impedance on channel two simultaneously?

A: When in stereo mode, the QSC ISA300Ti Commercial Power Amplifier with 70V Transformer operates both outputs independently, so you could use one channel for 8Ohm and the other channel for 70V.