scar tissue causing permanent hearing loss, you can return to hear your mix with fresh ears. The mix should sound invitingly loud, but not painful.

In basic terms, if you find that you’ve turned up the high end since the night began and it still sounds the same to you as it did at the beginning, watch out. That’s not “fatigued horns” or “changing room acoustics” rolling off the high end, it’s your ears. Please do yourself and your audiences a favor - USE EARPLUGS!

And if you can’t bring yourself to do that, be considerate of your audiences and leave the high-end EQ or crossover at normal settings.

Specifications

Number of Channels

12 (AP818: 18)

 

Mono Channel EQ

(ch.1 to 8) Low, Sweep Mid, High

(AP818: Ch. 1 - 14))

Stereo Channel EQ

(ch. 9/10 & 11/12) Low, Mid, High

( AP818: Ch. 15/16 & 17/18)

Channel Effects

All Channels

 

Monitors Effects

Yes

 

 

Balance Controls

9 to 12 (AP818: 15 to 18)

 

Pan Controls

1 to 8 (AP818: 1 to 14)

 

Inputs - XLR (bal)

Ch. 1 - 8

(AP818: Ch. 1 to 14)

 

Inputs - 1/4-inch

Ch. 1 - 12

(AP818: 1 to 18)

 

Inputs - RCA (unbal)

2 Stereo Sets

 

Clip /Mute LED

All Channels

 

Phantom Power

24 V + LED indicator

 

VU Meter

2 x 5 LED

 

 

Headphone Monitor Features

Cue , Volume

 

Internal Effects

Digital 16 Bit; 255 Effects

 

Effects Send

1 Internal/External

 

Effects Return to Main

Yes

 

 

Effects Return to Monitor

Yes

 

 

Reverb / Effects Footswitch

Yes

 

 

Max Gain to Line Out -Mic Input (dB)

63

 

 

Max Gain to Line Out -Line Input (dB)

45

 

 

Master EQ -1 (type /Channels /Range - dB)

Graphic / Mono / 9 Band 63 Hz - 16,000 Hz

Master EQ -2 (type /Channels /Range - dB)

Graphic / Mono / 9 Band 63 Hz - 16,000 Hz

Main Outputs ( Line Level)

4 , 1/4 inch (TRS) 2 pre, 2 post EQ

Main Amp Inputs (Line Level)

2 , 1/4 inch (TRS)

 

Monitor Outputs (Line Level)

1, 1/4 inch (TRS)

 

Outputs - Amp A - 1/4-inch Jacks

2

 

 

Outputs - Amp A - Speakon 4-pin

1(Euro only)

 

Outputs - Amp B - 1/4-inch Jacks

2

 

 

Outputs - Amp B - Speakon 4-pin

1 (Euro only)

 

Mixer - Signal to Noise Ratio (dB)

greater than 100

 

Mixer - Frequency Response (Tone and EQ Flat,+/-2dB)

20 Hz - 20,000 Hz

 

Mixer - Input Referred Noise to line out, @ 150 ohms (dBv)

-117

 

 

Mixer THD (Main out w/ -10dB input)

less than 0.03%

 

Amp A - Power Output @ 8 ohms (0%1"THD, 1kHz)

240

 

 

Amp A - Power Output @ 4 ohms

455

 

 

Amp A - Power Output -other

315 @ 2 ohms

 

Amp B - Power Output @ 8 Ohms (0%1"THD, 1kHz)

240

 

 

Amp B - Power Output @ 4 ohms

455

 

 

Amp B - Power Output -other

315 @ 2 ohms

 

THD - 1kHz (dB)

less than 0.03%

 

THD - 20Hz-20kHz (dB)

less than 0.1%

 

Hum and Noise (un / Aweight -dB)

-98

 

 

Typical crosstalk -1 kHz (dB)

-66

 

 

Input Impedance - Bal/Unbal (ohms)

22,000 - 12,000

 

Input Sesitivity (Vrms Sine)

1.47 V

 

 

CMRR @ 60Hz (min/typ)

54 dB / 66 dB

 

Max Votage Gain (dB)

29

 

 

Power Consumption (typ/max)

660 VA / 1200 VA

 

Protection

Thermal / Load / DC

 

Cooling

Variable Speed DC Fan

 

Transformer Type

Toroidal

 

 

Finish

Scratch Resistant Vinyl-Coated Aluminum

Chassis Construction

Steel

 

 

Rackmount

Yes (RK812) (AP818: NOT APPLICABLE)

Other Features

Selectable stereo mains or mono main & monitor.

Dimensions (DWH, inches)

18 x 19 x 5.5 (AP818: 18 x 25.3 x 5.5)

Dimensions (DWH, cm)

45.7 x 48.3 x 14 (AP818: 45.7 x 64.3 x 14)

Weight (lbs/kg)

38 / 17.3 (AP818: 43 / 19.5)

 

 

 

 

 

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Yorkville Sound AP812, AP818 owner manual Specifications