Mackie d.4 Pro Appendix C: Technical Info, Specifications, Options:, FireWire:, VU Meters, Equalization, Owner’s Manual, Input Impedance:, Output Impedance:

Appendix C: Technical Info

Specifications

Owner’s

Frequency Response (20 Hz to 20 kHz) :

Mic input to any output:	+0/–0.5 dB
Line/CD input to any output:	+0/–0.5 dB
Phono input to any output:	±0.5 dB RIAA EQ curve
FireWire output channel 1 or 2 to the FireWire
input of the opposite channel:	+0/–1 dB

Distortion (THD+N):

Main output, 20 Hz to 20 kHz

Mic Input, –20 dBu in, +30 dB gain, +10 dBu out:

	Better than 0.007%
Line/CD input at unity gain:	Better than 0.025%

Phono input, –30 dBu in, 0 dBu out: Better than 0.025% FireWire direct out, looped back to same

channel’s FireWire input, unity gain: Better than 0.030% Phones output, 20 Hz to 20 kHz, 0 dBu input signal

Line input @ 0 dB Gain:

Better than 0.040%

Common Mode Rejection Ratio (CMRR):

Mic input, maximum gain, 1 kHz:

Better than 60 dB

Maximum Output Levels:

XLR main, RCA main, booth, aux:	+22.5 dBu
Phones:	2.94 Vrms into 32Ω
	(270 mW)

Output Impedance:

Main XLR/RCA output:	150 Ω
Booth output:	150 Ω
Aux send:	150 Ω
Phones:	25 Ω

Equalization

Mic channel
Low:	±15 dB @ 80 Hz
Mid:	±15 dB @ 2.5 kHz
High:	±15 dB @ 12 kHz
PGM channel
Low:	+10/–inf dB @ 300 Hz
Mid:	+10/–inf dB @ 1 kHz
High:	+10/–inf dB @ 4 kHz

Manual

Crosstalk (1 kHz, 20 Hz to 20 kHz):

Signal placed on any channel with channel fader at minimum, any other channel measured at main outs, channels at unity

gain:Better than –75 dBu Signal placed on any channel, out and in over FireWire, channel fader at minimum, any other channel measured at main outs,

channels at unity gain:Better than –80 dBu

Noise Characteristics:

Equivalent Input Noise (E.I.N.), 20 Hz to 20 kHz, max gain:

Mic input, 150 Ω source:Better than –129.5 dBu

Phono input, 500 Ω/500 mH source: Better than 0.3 μV Signal to Noise Ratio:

Main out at unity, 20 Hz to 20 kHz, ref +4 dBu,

all channel gain knobs at minimum: Better than –90 dB Main out at unity, 20 Hz to 20 kHz, ref +4 dBu,

all channel gain knobs at unity:

Better than –87 dB

Main out at unity, 20 Hz to 20 kHz, ref +4 dBu, FireWire inputs selected at all channels and at unity:

	Better than –82 dB
Maximum Input Levels (rated at 1% THD):
Mic input, preamp gain at minimum:	+22.0 dBu
Line/CD inputs, preamp gain 0 dB:	+22.5 dBu
Aux input:	+22.5 dBu
Phono input:	185 mV @ 1kHz
Input/Output Characteristics:

Input gain control range:
Mic input:	0 to +60 dB,
PGM input:	Off to +12 dB
Aux return:	Off to +12 dB
Output gain control range:
Main output:	Off to +12 dB
Aux output:	Off to +12 dB
Booth output:	Off to 0 dB
Input Impedance:

Mic input:	2.4 kΩ balanced
Line/CD input:	20 kΩ balanced
FX return:	20 kΩ balanced
Phono input:	47.5 kΩ shunted with
	200 pF

FireWire:

Sample rates available:	44.1 kHz, 48 kHz,
	88.2 kHz, and 96 kHz
Buffer Size:	Adjustable from 2 ms to
	20 mS in steps of 1 ms
Resolution:	24-bit

VU Meters

12-segment pre-fader PGM meters

12-segment pre-fader main mix meters

OL (+20), +15, +10, +6, +3, 0, –2, –4, –7, –10, –20, –30 Mic input signal present LED (sensitivity):

	–20 dBu
Mic input overload LED:	+18 dBu

AC Power Requirements:

Power Consumption: 40 watts

Universal AC Power Supply: 100 VAC – 240 VAC, 50-60 Hz

Physical Dimensions and Weight:

Height: 14.77 in/375 mm (including knobs and connectors)

Width: 12.36 in/314 mm

Depth: 4.62 in/117 mm (including knobs and connectors)

Weight: 13.5 lb/6.1 kg

Options:

Rack mounting kit

LOUD Technologies Inc. is always striving to improve our products by incorporating new and improved materials, components, and manufacturing methods. Therefore, we reserve the right to change these specifications at any time without notice.

“Mackie,” and the “Running Man” are registered trademarks of LOUD Technologies Inc. All other brand names mentioned are trademarks or registered trademarks of their respective hold- ers, and are hereby acknowledged.

Owner’s Manual