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7. Fan grill filters 

A grille with foam filters is located on the front panel to prevent dust from entering the amplifier. The 
grille is removable for easy cleaning of the filter by simply pulling them off. The foam filter should always 
be used. 
 

8. Carry/protection handle 

Both handles can be used to carry the amplifier; they also act as protection for the front panel. In fixed 
installations or where rack front covers are too shallow, they may be removed by unscrewing the 
retaining bolts behind the front panel. 

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Figure 2. Rear Panel 
 

1. Output / Speaker connector  

The Speakon connector from Neutrik® may be unfamiliar to some users. A full description is found in the 
connections section. (See page 

12

). 

 
3. Clip limiter switch 

Turns the clip limiter on (switch IN position) or off (switch OUT position). (See page 

13

).  

 
4. Input signal XLR

. Neutrik® Combojack features also ¼” TRS phone jacks. (Pin 2 is “hot”, see page 

10

). 

 

5. Link Output

. 3-pole screw terminal of Phoenix brand. Connected in parallel to the female XLR 

input connector for linking the channel to another input. 
 

6. Gain switch channel B

. Three of the switches in the DIP-switch selects the maximum gain of the 

channel to be either 20, 23, 26, 29, 32, 35, 38 or 41 dB. (See page 

6

). 

 

7. Link/ Bridge switch

. Two of the switches in the DIP-switch are used for Link and Bridge operation. 

(See page 

6

). 

 

8. Gain switch channel A

. Three of the switches in the DIP-switch selects the maximum gain of the 

channel to be either 20, 23, 26, 29, 32, 35, 38 or 41 dB. (See page 

6

). 

 

9. AC power cable.  WARNING! 

A label just below the mains cable on the rear of the amplifier indicates the AC mains 
voltage, for which the amplifier is wired. Connect the power cable only to the AC source 
referred to on the label. 

!

 
 
 
 
 
 

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Summary of Contents for iP 900

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

Page 2: ...7 5 3 4 Bridge mono mode 7 5 3 5 Bridge mono mode features 8 6 INSTALLATION 8 6 1 Mounting 8 6 2 Cooling 8 6 3 Operating voltage 8 6 4 Grounding 9 6 5 Power consumption 9 6 5 1 Calculation 10 7 CONNEC...

Page 3: ...the amplifier while wet or standing in liquid 5 Clean only with dry cloth 6 Do not block the air intake or exhaust ports Install the unit in accordance with the instructions 7 Do not operate the ampli...

Page 4: ...es To avoid electrical s do not touch any exposed speaker wiring while the amplifier is operating See page 12 hock about outputs for proper connection of speakers PKRKP o A sample of this product has...

Page 5: ...ator This indicator illuminates if the amplifier tries to operate above its maximum operating temperature 90 C The indicator first comes on as a warning to either turn down the input level or check th...

Page 6: ...or off switch OUT position See page 13 4 Input signal XLR Neutrik Combojack features also TRS phone jacks Pin 2 is hot see page 10 5 Link Output 3 pole screw terminal of Phoenix brand Connected in par...

Page 7: ...B to 41dB in 3dB steps See the different settings for the DIP switches in the table below The three switches to the very left are for channel B and the three to the very right are for channel A RKNKO...

Page 8: ...illoscope probes if you are bench testing Reverse operation of Channel B RKPKP q In tandem mode both channels inputs are linked and receive the same signal The tandem mode is active if the Link switch...

Page 9: ...Your amplifier uses a forced air cooling system to maintain a low and even operating temperature All fan cooled Lab gruppen amplifiers have front to rear airflow There are several reasons for this one...

Page 10: ...d interference SKR m There are three ways to determine the power current consumption of the amplifier First the peak current draw at full output power Under this condition the power will blow the main...

Page 11: ...ast 5dB 1 3 of full power and a producing 320 watts per channel The 1 3 power per channel is accordingly 320 3 106 5 watts and total output 2 x 106 5 213 watts The power consumption according power co...

Page 12: ...d signals are less sensitive to AC hum and radio interference The source impedance should be less than 1 kohms to avoid high frequency loss in long cables T connector labeled Link provided on each cha...

Page 13: ...co al to ground or t terminals Pay attention to speaker polarity loudspeakers connected out of polarity degrade quality and may be damaged as a consequence Keep the speaker cable leads as short as pos...

Page 14: ...cate that the output circuits are receiving the correct rail voltage V molqb qflk cb qrobp Each Lab gruppen amplifier has many advanced protection features protecting both the amplifier and the speake...

Page 15: ...full output power the VHF protection mutes the input signal This is indicated on the front panel 2 labeled Protect After five seconds the outputs will un mute and return to normal operation unless the...

Page 16: ...rotection 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 cau...

Page 17: ...NN pmb fcf qflkp i K NS r j m VMM s MKP OMMPJMOJOR...

Page 18: ...sibility 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 incurre...

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