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9.  Connect only to AC power outlets rated 200-240V, 50-60Hz. 
10.  Do not use this amplifier if the power cord is broken or frayed. Protect the power cord from 

being walked upon or pinched particularly at the plugs and the point where it exits from the 
apparatus. 

11.  Only use accessories specified by the manufacturer. 
12.  The unit is intended to use in a 19” rack. Follow the mounting instructions. When a rack on 

wheels is used, use caution when moving the loaded rack to avoid injury from tipping over. 

!

13.  Unplug this apparatus during lightning storms or when unused for long periods of time. 
14.  Do not connect an amplifier output in parallel or series with any other amplifier’s output. Do 

not connect the amplifier output to any other voltage source, such as battery, mains source, or 
power supply, regardless of whether the amplifier is turned on or off. 

15.  Do not run the output of any amplifier back into another channel's input. 
16.  Refer all servicing to qualified service personnel. Servicing is required when the apparatus has 

been damaged in any way such as: 

• 

Power-supply cord or plug is damaged 

• 

Liquid has been spilled into the unit 

• 

An object has fallen into the unit 

• 

The unit has been exposed to rain or moisture 

• 

The unit does not operate normally 

• 

The unit was dropped or the enclosure is damaged 

17.  Do not remove top or bottom covers. Removal of the cover will expose hazardous voltages. 

There are no serviceable parts inside and removal may void the warranty. 

18.  An experienced user shall always supervise this professional audio equipment, especially if 

inexperienced adults or minors are using the equipment. 

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Your amplifier is very powerful and can be potentially dangerous to both, loudspeakers and 
humans alike. Many loudspeakers can be easily damaged or destroyed by overpowering, 
especially with the high power available from a bridged amplifier. Always check the speakers’ 

continuous and peak power capabilities.  
Even if the amplifier’s front panel attenuators can be used to reduce the gain, it is still possible to reach 
full output power if the input signal level is high enough. 

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Power amplifiers are capable of producing hazardous output voltages. To avoid electrical s
do not touch any exposed speaker wiring while the amplifier is operating. See page 

13

hock, 

 about 

outputs for proper connection of speakers.  

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A sample of this product has been tested and complies with the limits for the European Electro 
Magnetic Compatibility (EMC) directive. This equipment has also been tested and found to comply 
with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are 
designed to provide reasonable protection against harmful interference from electrical equipment. This 
product uses radio frequency energy and if not used or installed in accordance with these operating 
instructions, may cause interference to other equipment, such as radio receivers. However, there is no 
guarantee that interference will not occur in a particular installation. 
If this equipment does cause harmful interference to radio or television reception, which can be 
determined by turning the equipment on and off, the user is encouraged to try to correct the interference 
by one or more of the following measures: 

• 

Reorient or relocate the antenna. 

• 

Increase the separation between the equipment and receiver. 

• 

Connect the equipment into an outlet on a circuit different from that to which the receiver is 
connected. 

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Summary of Contents for fP Series FP 2400Q

Page 1: ...m OQMMn rpbo j kr i...

Page 2: ...ing MLS switch 9 5 4 1 A practical way to find your MLSTM settings 9 5 4 2 MLS technology the background 10 5 4 3 The problem 10 5 4 4 The solution 10 6 INSTALLATION 10 6 1 Mounting 10 6 2 Cooling 10...

Page 3: ...isk of fire or electric shock do not expose this apparatus to rain or moisture PKP rqflk To reduce the risk of fire or electric shock do not remove screws No user serviceable parts inside Refer servic...

Page 4: ...ery powerful and can be potentially dangerous to both loudspeakers and humans alike Many loudspeakers can be easily damaged or destroyed by overpowering especially with the high power available from a...

Page 5: ...ys use the original packing QKO c m Figure 1 front panel 1 Carry protection handle Both handles can be used to carry the amplifier they also act as protection for the front panel In permanent installa...

Page 6: ...ns mains power on or off See page 11 and 14 QKP o m Figure 2 Rear Panel 1 Output Speaker connector The Speakon connector from Neutrik may be unfamiliar to some users A full description can be found in...

Page 7: ...level in different load impedances Sensitivity in Vrms fP 2400Q MLS SWITCH SETTING LOAD CONFIGURATION 3 dB 0 dB 16 ohms Quad 4 channel 0 98 1 42 8 ohms Quad 4 channel 1 00 1 37 4 ohms Quad 4 channel 0...

Page 8: ...are connected in normal polarity mode By having channel A and B and C and D operating in opposite polarity the energy storage in the power supply is more efficient This is significant for signals bel...

Page 9: ...results in twice the voltage swing four times the peak power and just less than three times the full power of a single channel One way to understand the load and power from the amplifier s perspective...

Page 10: ...ion for your application There is no risk to damage the amplifier since it is very well protected even down to 0 3 ohms If uncertain or where time does not allow just stick to the default positions Th...

Page 11: ...adjusted for a much higher current so it cannot interfere with the requirements by the loudspeaker impedance curve S fkpq ii qflk SKN j The amplifier is two rack units high 2U and will fit into a sta...

Page 12: ...a short circuit is introduced between the two thereby enabling electrical protection If a unit in the system is faulty its mains fuse will blow due to this automatic ground system If however you wish...

Page 13: ...175 MLS at 3dB note 1 Average power with music as program source The amplifier driven to clip level note 2 Normal music power with 9dB headroom IEC standard power rating MAINS INPUT POWER MAX OUTPUT...

Page 14: ...ms to avoid high frequency loss in lo cables TRS p g If you leave a pin di A better method for using unbalanced sources is shown in Figure 8 This is similar to the connection for balanced lines but pi...

Page 15: ...that the AC mains voltage is correct and the same as the one printed on the rear panel of the amplifier See pages 10 about operating voltage and power consumption Make sure that the switches on the r...

Page 16: ...utput and comparing the distortion produced between the input and output of the amplifier If the distortion exceeds 1 THD for any reason voltage or current clipping the limiter reduces the input signa...

Page 17: ...VKNKR If the AC mains voltage is lower or higher than the allowed operational voltage over or under voltage the power supply will automatically shut down Once the mains voltage is above the minimum s...

Page 18: ...ion is not activated If it is remove possible high frequency oscillations from the relevant input Fault The amplifier goes into thermal protection when driven at low level Check that nothing causes a...

Page 19: ...NN pmb fcf qflkp i K NU r j m OQMM n s MKU OMMPJNMJMT...

Page 20: ...bility for any loss due to cancellation of any events or rent of replacement equipment or costs due to third party s or customer s loss of profit or any other indirect cost or losses however incurred...

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