YORKVILLE TWO Series, Service Manual

w w w . y o r k v i l l e . c o m

w w w . y o r k v i l l e . c o m

REAL Gear.

REAL People.

REAL Gear.

REAL People.

Yorkville Sound

550 Granite Court

Pickering, Ontario

L1W-3Y8 CANADA

Canada Voice: 905-837-8481

Fax: 905-839-5776

Yorkville Sound Inc.

4625 Witmer Industrial Estate

Niagara Falls, New York

14305 USA

U.S.A. Voice: 716-297-2920

Fax: 716-297-3689

Yorkville Sound

550 Granite Court

Pickering, Ontario

L1W-3Y8 CANADA 

Canada Voice: 905-837-8481

Fax: 905-839-5776

Yorkville Sound Inc.

4625 Witmer Industrial Estate

Niagara Falls, New York

14305 USA

U.S.A. Voice: 716-297-2920

Fax: 716-297-3689

To get the full Owner’s Manual please visit our website at 

http://www.yorkville.com/manuals/

or, if you need a printed version call 

905-837-8777

Printed In CANADA

QuickStart-NX750P-2-00-1v1 • YS#QSTART-NX7502 • January 12, 2023

1. Operation - 

The 

NX750P-2 is a powered, 

bi-amped full-range 

cabinet with a built-

in two channel mixer. 

Multiple cabinets may 

be connected through 

the Link option. If using 

an external mixer, the internal 

mixer can be disabled. The built-

in mixer has a mic input and two 

(summed) ¼-inch inputs. A switch 

provides a low frequency rolloff if 

you’re using a subwoofer.

2. Mic Input - 

Any standard mic 

with an XLR can be inserted into the 

Mic input. Phantom power is built-in 

for condenser mics. 

3. Line/CD Inputs - 

Line level 

signals from cell phones, media 

players or CD players can be directly 

connected using these inputs (adatpers 

may be needed). Stereo sources will 

be summed for proper operation. The 

inputs are balanced to help reject hum 

(when used with proper cables). 

4. Link - 

These parallel jacks allow 

multiple cabinets to be connected. The 

Link jacks are the correct input to use 

when driving the NX750P-2 from an external mixer. The Link jacks 

operate at line level (+4 dBv) and the Level control allows operation 

at levels from –2 dBv to +10 dBv. When operating with lower level 

signals, use the Line inputs of the first cabinet in the chain. To achieve 

maximum hum rejection, proper balanced cables must be used.

5. Connections - 

When using the NX750P-2 in the angled 

position (as a stage monitor), it’s recommended to use jacks that 

have 90-degree connectors. This will reduce the risk of damaging 

the wires by being bent and/or pinched.

6. Level - 

This allows cabinets, linked in a chain, to be individually 

adjusted. This control does not adjust the level of the Link jacks. 

7. LF Rolloff - 

For operation with a subwoofer, the LF Rolloff 

disables the LF boost and filters out signals below 100 Hz. This 

affects the signals to the internal amplifier and does not affect 

signals passing through the Link connections.

8. Mixer On/Off - 

The 

switch turns the internal 

mixer on and off. The 

internal mixer should be 

used when a mic or media 

player is directly connected 

to one of the Mic or Line/

CD inputs. It should be 

turned off if the Link Input is being used 

to connect an external mixer.

9. Mic Control - 

This adjusts the 

level of the Mic input. The mic’s output 

to other cabinets through the link 

connections will be affected as well.

10. Line/CD Control - 

Adjusts 

the level of devices plugged into the 

Line/CD input. The signal out to other 

cabinets, through the link will be 

affected as well. A line-level signal and 

mic can be connected simultaneously.

11. Treble and Bass - 

These 

affect the signals from devices 

plugged into the Mic and Line/CD 

inputs. The signal out through the Link 

will also be affected. These controls 

do not affect signals coming into the 

cabinet from the Link connections.

12. Green PWR LED - 

Indicates 

that AC power is on.

13. Yellow Limit LED -

 iIndicates that the cabinet is operating 

at full power and the limiter(s) are actively reducing the signal 

level. It’s okay to operate in limiting as long as the clip light is not 

constantly on. This LED indicates operation of either limiter.

14. Red Clip LED - 

Illumination of this LED indicates that the 

signal level is excessive and may cause distortion. Reduce mixer 

levels or turn down the Level control to reduce clipping. 

15. Power Switch - 

Turns the power On and Off to the cabinet. 

Note; a cabinet that is turned off, but is one of the cabinets in a 

chain might cause hum (or buzz) in the other cabinets.

16. Fuse - 

A blown fuse might mean that excessive mains 

voltage has been applied or if there’s a serious fault with the unit. 

Thermal margins may be compromised when operating facing 

straight up, straight down or while operating in direct sunlight!

MIXER

CLIP

LIMIT

MIC 10

0

BASS

12

12 dB

TREBLE

12

12 dB

LINE

/ CD 10

0

dB

NX750P

LEVEL

6

00

LF ROLLOFF

0

100Hz

60Hz

MIXER

OFF

ON

MIC

LINE / CD

LINK