Phoenix Gold pt1800 manuale d’uso

pt1250/pt1800/pt2400 Professional Stereo Power Amplifier[...]

CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated "dangerous v[...]

Introduction Congratulations on your purchase of a new Carver Professional Power Amplifier. It is backed by state-of-the-art engineering and manufacturing techniques to bring you the best in quality craftsmanship and reliable performance. The pt1250, pt1800 and, pt2400 are specially designed for pro touring applications. Their rugged construction a[...]

• features pt1 250 2 ● 465W per channel into 8 ohms 625W per channel into 4 ohms ● XLR and 1/4” TRS input connectors ● Accepts balanced or unbalanced lines ● Heavy-duty 5-way speaker binding posts ● Independent CH 1 and CH 2 Level Controls with 1 1 detented positions ● Internally configurable for Parallel Mono mode for single channe[...]

• features 3 Continuous Average Output Power, both channels driven: 465 watts per channel into 8 ohms from 20Hz to 20kHz, with no more than 0.5% THD; 625 watts per channel into 4 ohms from 20Hz to 20kHz, with no more than 0.5% THD Parallel-mono operation: 100 watts into 4 ohms from 20Hz to 20kHz, with no more than 0.5% THD 70-volt stereo: 600 wat[...]

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Power Output: Both channels: driven (20Hz-20kHz) 8 ohm/ch. 600 watts 4 ohm/ch. 900 watts 2 ohm/ch. 1100 watt Power Output: Series mono operation (20Hz-20kHz) 8 ohm 1800 watts 4 ohm 2200 watts Signal to Noise Ratio: >100dB (from rated power @ 4 Ω /A weighted) Frequency Response: 20Hz to 20kHz ±0.5dB Channel Seperation: >55db @ 1kHz Slew Rat[...]

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Power Output: Both channels driven (20Hz-20kHz) 8 ohm/ch. 750 watts 4 ohm/ch. 1200 watts 2 ohm/ch. 1500 watts Power Output: Series mono operation (20Hz-20kHz) 8 ohm 2400 watts 4 ohm 3000 watts Signal to Noise Ratio: >100dB (from rated power @ 4 Ω /A weighted) Frequency Response: 20Hz to 20kHz ±0.5dB Channel Seperation: >55db @ 1kHz Slew Ra[...]

8 2 1 3 5 4 Controls And Functions 1. CLIPPING ELIMINA TOR Pressing this switch turns on the clipping eliminator circuit. In this mode, the amplifier output remains undistorted even when overdriven by 8dB. 2. LEFT/RIGHT V OLUME CONTROLS 10-step attenuators that adjust the relative output level of the pt1250. The amount of attenuation corresponds to[...]

6. POWER CORD Connect to a properly configured outlet providing the line voltage specified for your model. 7. FAN SPEED Push-button switch that sets the idle speed of the cooling fans. For normal usage, use the low-speed position. The fan speed is proportional to the amplifier power output. 8. FUSE AC power line fuse for the pt1250. For the 120-vol[...]

10 Controls And Functions 1. POWER SWITCHES Channel 1 and Channel 2 power switches independently power up each channel. The slow start up feature of each power supply allows both switches to be pushed simultaneously . 2. SEQUENCE SWITCHES These switches make it possible to sequentially turn on and off amplifiers in one rack or multiple racks of uni[...]

11 8. XLR POLARITY SWITCH The XLR Polarity Switch conveniently configures both XLR connectors for Pin 3 +, (Pin 2-) or Pin 2 +, (Pin 3-). [the clear security cover can be installed after switches are set.] 9. INPUT CONNECTORS The pt2400/pt1800 amplifier comes equipped with XLR and Barrier inputs. The XLR connector is wired in parallel with the barr[...]

pt1 250 Inst alla tion Location and General Precautions Observe the following precautions when choosing a location for your amplifier . A. Do not expose the unit to rain or moisture. If a fluid or foreign object should enter the unit, disconnect the power plug and contact an authorized dealer or service center. Do not pull out the plug by pulling o[...]

This is infinitely preferable to breaking the ground pin off the power cord. The pt1250’s XLR connector uses the American wiring convention (pin 3 hot). Note that the pin 3 of the XLR connector cor r esponds to the tip connection on the TRS phone jack . All input connectors are connected in parallel; you can parallel the amplifier inputs by patch[...]

70V Distribution Systems The pt1250 has sufficient output voltage capability in stereo mode to drive 70-volt distribution systems without using a step-up transformer at the amplifier . The amplifier delivers 300-watts per channel to the 70-volt system. T ransformers are still required at each loudspeaker (as is the case with all 70-volt systems). B[...]

15 AC Power Considerations Ensure that the pt1800/pt2400 is plugged into an outlet capable of supplying the correct voltage specified for your model and enough current to allow full-power operation of all the amplifiers plugged into it. The current demand of a power amplifier varies depending on several factors, including the impedance of the load,[...]

This will insure that the resistance of the speaker wire is less than 5% of 4 ohms, resulting in a transmission loss of less than 0.5 dB. The multi-way binding posts can accept spade lug, bare wire or banana connections. Be sure that all the fine strands of the wire are twisted together and contained within the connector. If even one strand is loos[...]

CAUTION: In bridged mono operation, the output connections are actually a balanced output configuration. This means that both output terminals have voltage present (neither one may be grounded). 70 V olt Distribution Systems The pt2400/pt1800 have the capability of driving a 70 volt distribution system directly without the need for step up transfor[...]

Fig. 3 shows a typical set up in a 3 rack with 3 amplifiers. In this case the top amplifier is the master amplifier. Its channel 1 power switch controls the power up and power down sequence for the whole rack and possibly additional racks. Channel 2 may be used as an optional backup for channel 1. All other amplifiers have power switches turned off[...]

Oper a ting Tips Using the pt1250/pt1800/pt2400 Once the amplifier has been installed and wired into the system, you are ready to use it. Here are some tips to help you get the most from it. • V erify that all switches (Stereo / Mono, Clipping Eliminator and Level Defeat) have been set to the mode that you want. • When you power the system up f[...]

Distortion Distortion is usually caused by excessive loss in the input controls (the mixer/equalizer/crossover can’t produce enough output), overdriving resulting in output clipping, or current limiting caused by excessively low load impedances. 1. Check the setting of the Input Level controls. If set too low, the preceding piece of equipment may[...]

W arranty Informa tion Professional Power Amplifiers: 5 years WHA T IS COVERED: THIS W ARRANTY COVERS DEFECTS IN MATERIALAND WORKMANSHIP ONL Y. This limited W arranty DOES NOT extend to: 1) Damage caused by shipment, 2) damage caused by accident, misuse, abuse, failure to perform owner maintenance, or operation contrary to the instructions in the C[...]

Part #8100.0089 Rev. B 5 Y ear W arranty 1 8 0 DA Y P erformance Guarantee Made In America A Division Of Phoenix Gold International, Inc. 9300 North Decatur ● Portland OR 97203 ● T el: 503.978.3344 ● Fax: 503.978.3302[...]