Rane MH 4 Operator'S Manual Download Page 2

Manual-2

STEREO/MONO switch

Converts the INPUTS from stereo to mono so

that a single input cable drives both sides of

the headphones. In some instances a

STEREO program may be confusing for live

monitoring purposes, and switching to MONO

improves intelligibility by summing the Left

and Right signals.

OVERLOAD indicators

The red LEDs light when the input signal

exceeds the MH 4’s output capability (3 dB

below maximum). Occasional flickering is

acceptable.The overload point automatically

varies with the headphones used.

Chassis ground point

A screw is supplied for chassis grounding

purposes. This unit comes with an outboard

power supply which does not ground the

chassis through the line cord. The MH 4 can

be grounded either to another chassis which

is earth grounded, or directly to the

grounding screw on an AC outlet cover by

means of a wire connected to this chassis

grounding screw.

Remote POWER supply input

The unit is supplied from the factory with a

Model RS 1 remote power supply suitable for

connection to this input jack. The power

requirements of the unit call for an 18 volt

AC center-tapped transformer only. 

This is

not a telephone jack. Never use a

power supply with your unit other than

the one supplied or a replacement

approved by Rane Corporation.

 Using any

other type of supply may damage the unit

and void the warranty.

Summary of Contents for MH 4

Page 1: ...ct it to either one of the INPUT jacks and engage the STEREO MONO switch Set the CHANNEL LEVEL controls for individual headphone levels Never connect anything except a Rane power supply to the thing t...

Page 2: ...is grounding purposes This unit comes with an outboard power supply which does not ground the chassis through the line cord The MH 4 can be grounded either to another chassis which is earth grounded o...

Page 3: ...a TRS Tip Ring Sleeve plug for balanced operation or a TS Tip Sleeve plug for unbalanced operation A balanced line is best when connecting a cable over 10 feet in length You do nothing different when...

Page 4: ...that ran over your foot escapes Power output About 12 mW As you can see from the chart below headphones near 75 ohms impedance produce the highest power levels from the MH 4 However heaphone sensitivi...

Page 5: ...5 238 109 R 90 HD 2 SB 15 60 100 238 123 R 80 R 35S R 20 Porta Pros 60 101 238 124 R 70B R 55B SB 50 SB 35 60 101 238 124 R 40 60 90 238 114 R 30S 60 106 238 130 R 10 60 103 238 127 TD 75 60 95 238 11...

Page 6: ...tion If you would like the complete note call or email the factory download it from Rane s web site or ask your dealer for a copy Rane s policy is to accommodate rather than dictate However this docum...

Page 7: ...Manual 7 VARIOUS MH 4 INPUT CABLE ASSEMBLIES...

Page 8: ...rm downward expander describes this type of applica tion ground Any electrical reference point for measuring voltage levels Usually a large conducting body such as the earth or an electric circuit con...

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