RHA6 - Audio Amplifier MARANTZ - Free user manual and instructions

USER MANUAL RHA6 MARANTZ

User Guide (English)

Introduction

Thanks for purchasing the Marantz Professional RHA6! RHA6 is a universal, multi-purpose mixer and headphone amplifier for rehearsal, studio, or stage. Perfect for headphones, in-ear monitors, or personal monitor mixing, RHA6 features six independent high-power stereo amplifiers in one compact rack unit that delivers maximum audio quality, even at very high or very low volume levels; RHA6 has a minimized circuitry path which means there's less "stuff" for your signal to pass through, keeping your sound clear and crisp.

• Manufactured under QS9000 certified quality system
- Six independent high-powered headphone amplifiers in a compact, 1RU size
• Supplies six fully independent mixes for up to 18 pairs of headphones
- Stereo Aux Input on each channel with level adjustments
• Additional Direct Input on front panel to mix in additional sources
• Four-segment LED on each channel for easy visual monitoring
• Mono and Left/Right Mutes per channel for two mono mixes per channel
• High-quality components and exceptionally rugged construction
- Servo-balanced, gold-plated XLR and 1/4" TRS connectors

Box Contents

RHA6

Power Cable

User Guide

Safety & Warranty Manual

Support

For the latest information about this product (system requirements, compatibility information, etc.) and product registration, visit marantzpro.com.

Sound Level

Permanent hearing loss may be caused by exposure to extremely high noise levels. The U.S. Occupational Safety and Health Administration (OSHA) has specified permissible exposures to certain noise levels. According to OSHA, exposure to high sound pressure (SPL) in excess of these limits may result in hearing loss. When using equipment capable of generating high SPL, use hearing protection while such equipment is under operation.

Hours per day	SPL (dB)	Example
8	90	Small	gig
6	92	Train
4	95	Subway	train
levels	97	High-level	desl
2 100 Classical music concert
1.5	102	Riveting	machine fact
1	105	Machine
0.5	110	Airport
0.25 or less 115 Rock concert

Features

Front Panel

1. Direct Input: Feeds an external audio source directly into the main signal path.
2. Input Gain Control: Controls the signal level going to the Main Inputs.
3. Input Level Meter: Displays the signal level coming from Main Inputs. For the best quality of input signal, the LED should range from 0 to +6 dBu. If the Clip LED (in the Output Level Meter) is always on, reduce the input level using the Input Gain Control.

4. Aux Input: Provides a separate stereo input signal which can be mixed with the Main Input signal.

5. L Mute Switch: Mutes the left input signal.

6. R Mute Switch: Mutes the right input signal.

7. Mode Switch: Switches the operational mode between mono and stereo.

8. Mono LED: This LED lights up when the unit is in mono mode. When the LED is off, the unit is in stereo mode.

9. Headphone Output: 1/4" TRS phone jack used to output the signal of the individual channel. There are also 12 additional headphone outputs (two for each channel) on the rear panel.

10. Balance Control: Sets the amount of the signal coming from the Aux Input and Main Input. When a signal is fed into the Aux Input, the balance control will regulate the ratio of the Main Input and the Aux Input signals.

11. Output Gain Control: Adjusts the output level of the individual channel.

12. Output Level Meter: Displays the output signal level. If the Clip LED lights up, turn down the input gain control and/or the individual output gain control to avoid distortion.

marantz PROFESSIONAL 3 12 5 6 10 11 OUTPUT 12 -24 -78 -72 OUTPUT WLS 101 -24 0 102 01 L MUTE R MAIN IN RUX BALANCED AIR IN OUTPUT 12A HOOPHONE OUTPUT 12 C1 MAIN CH OUTPUT 12A -24 -78 -72 OUTPUT WLS 101 -24 0 102 01 L MUTE R OUTPUT 12A -24 0 102 01 OUTPUT 12A OUTPUT 12A OUTPUT 12A OUTPUT 12A OUTPUT 12A OUTPUT 12A OUTPUT 12A OUTPUT 12A OUTPUT 12A OUTPUT 12A OUTPUT 12A OUTPUT 12A OUTPUT 12A OUTPUT 12A

Rear Panel

MARANZ NEARHOLE OUT 13 14 17 16 15 16 17 MAR OUTPUT MAIN INPUT

1. Power Connector: Use the included power cable to connect this connector to a power source. Please check the voltage accepted by the unit and the voltage available from your power source before connecting it.
2. Fuse Holder: If the fuse blows, replace it with a fuse of the same type.
3. Main Input Connectors: Balanced 1/4" TRS and XLR connectors used to input the stereo signal.
4. Main Output Connectors: Balanced 1/4" TRS and XLR connectors used to output the main signal. Use these connectors to link several headphone amplifiers together.
5. Headphone Out (1-12): These are 12 additional headphone outputs (two for every channel) wired in parallel with the output available on the front panel.

Setup

1. Switch everything on in the following order:

• audio input sources (i.e. instruments, CD/MP3 players)
• RHA6
- speakers/amps

1. When turning off, always reverse this operation:

2. speakers/amps
   • RHA6

3. last, any input sources

Using the Main Input Connectors

1. Connect your source to the rear panel main input connectors on RHA6.
2. Set the input gain (Main section) and the balance control (Channel section) on center position. Set the output gain of each channel all the way down.
3. Check the input level meter for optimal signal.
4. Connect headphones to RHA6 and start to raise the output gain of each channel to the desired listening volume.

marantz RHA6 Main Outputs

Using the Aux Inputs

You can also play back a signal to feed in a vocal microphone and then connect a mixer's Aux send to RHA6's Aux input. Use the balance control to give the vocalist the desired mix between the voice and the playback signal. Then, adjust the output gain control to regulate the overall desired volume.

marantz RHA6 Main Outputs Aux Send

Through the Aux inputs, you can use the six channels of RHA6 independently to give individual mixes to six different musicians. Connect the Aux Sends or Subgroup outputs directly to the Aux input of RHA6. Then rotate the balance control on your RHA6 fully to the left. This will route only the Aux In signal to the headphones.

graph TD
    A["Input: mapez RF/DC"] --> B["Aux Send 1"]
    A --> C["Aux Send 2"]
    A --> D["Aux Send 3"]
    A --> E["Aux Send 4"]
    A --> F["Aux Send 5"]
    A --> G["Aux Send 6"]
    B --> H["Output: 10x10-100 microcontroller with multiple input channels and output ports"]
    C --> H
    D --> H
    E --> H
    F --> H
    G --> H

Using Multiple Headphones on the Same Channel

Each channel provides three headphone outputs. These jacks are all connected in parallel. For best results, please note the impedance information:

• When connecting one headphone to each channel, the minimum impedance of the headphone should be 100 ohms.
• When connecting two headphones to each channel, the minimum impedance of each headphone should be 200 ohms.
• When connecting three headphones to each channel, the minimum impedance of each headphone should be 300 ohms.

Installation and Connection

Read the following section carefully. Not paying attention to the input signal level, to the routing of the signal and to the assignment of the signal will result in unwanted distortion, a corrupted signal or no sound at all.

Power Connection

Use the same fuse as marked on the fuse holder near the power connector. Connect RHA6 to a standard power outlet using the enclosed power cable.

Audio Connection

The RHA6 uses balanced XLR and 1/4" (6.35 mm) TRS phones jack. It can be connected to other units in a variety of ways to support a vast range of applications without experiencing a signal loss.

Wiring Configuration

You can wire your XLR or 1/4" (6.35 mm) TRS cables as balanced or unbalanced. Here are some examples:

Ring Tip Sleeve

+ - Ring Tip Sleeve

Pin 3 Pin 2 Pin 1, linked to Pin 3

Pin 3 Pin 2 Pin 1

Determine the wiring configuration you need for your application and audio connections:

Balanced

Pure electrical connector diagram showing three types of connectors (no text or symbols)

graph TD
    A["Tip"] --> B["Tip"]
    C["Ring"] --> D["Ring"]
    E["Sleeve"] --> F["Sleeve"]
    G["1"] --> H["1"]
    I["2"] --> J["2"]
    K["3"] --> L["3"]
    M["Tip"] --> N["Tip"]
    O["Ring"] --> P["Ring"]
    Q["Sleeve"] --> R["3"]

Unbalanced

Diagram showing various types of audio jack cables with labeled connectors and pin symbols

graph TD
    A["Tip"] --> B["Ring"]
    B --> C["Sleeve"]
    C --> D["1"]
    D --> E["Center"]
    D --> F["Screen"]
    G["Tip"] --> H["Sleeve"]
    H --> I["1"]
    I --> J["Center"]
    I --> K["Screen"]
    L["Tip"] --> M["Sleeve"]
    M --> N["2"]
    N --> O["Center"]
    N --> P["Screen"]
    Q["Tip"] --> R["Sleeve"]
    R --> S["3"]
    S --> T["2"]
    T --> U["Screen"]
    V["Tip"] --> W["Sleeve"]
    W --> X["4"]
    X --> Y["3"]
    Z["Tip"] --> AA["Sleeve"]
    AA --> AB["5"]
    AB --> AC["2"]
    AC --> AD["Screen"]

marantz PROFESSIONAL OUTPUT LI -14 -16 -12 4 3 5 6 10 11 INPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN OUTPUT CAN MAIN

Aplicaciones

Three schematic diagrams of electronic components connected by wires, showing pin layouts and terminal connections (no text or labels)

graph TD
    A["Punta"] --> B["Punta"]
    C["Nuca"] --> D["Nuca"]
    E["Manguito"] --> F["Manguito"]
    G["1"] --> H["1"]
    I["2"] --> J["2"]
    K["3"] --> L["3"]
    M["Punta"] --> N["1"]
    O["Nuca"] --> P["2"]
    Q["Manguito"] --> R["3"]

No balanceado

Diagram showing various types of audio jack cables with labeled connectors and terminal symbols

graph TD
    A["Punta"] --> B["1"]
    C["Nuca"] --> D["2"]
    E["Manguito"] --> F["3"]
    G["Punta"] --> H["1"]
    I["Manguito"] --> J["2"]
    K["1"] --> L["Centro"]
    M["2"] --> N["Anillo"]
    O["3"] --> P["Punta"]
    Q["Punta"] --> R["Manguito"]
    S["Punta"] --> T["Punta"]
    U["Nuca"] --> V["Nuca"]
    W["Manguito"] --> X["Manguito"]
    Y["Punta"] --> Z["Centro"]
    AA["Manguito"] --> AB["Anillo"]
    AC["Punta"] --> AD["Centro"]
    AE["Nuca"] --> AF["Anillo"]
    AG["Manguito"] --> AH["1"]
    AI["1"] --> AJ["Centro"]
    AK["2"] --> AL["Anillo"]
    AM["3"] --> AN["Centro"]

marantz PROFESSIONAL 3 5 12 10 11 MUTU 1 +2 -18 +2 -18 -24 0 +2 -18 OUTPUT VOL 10 +2 -18 L MUTU 8 MAIN RUX SALANCED HOLD OUTPUT GAN HEAVIRANCE DRUTIN MAIN CH MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN

Installation et raccordement

Pure electrical connector diagram showing three types of connectors (no text or symbols)

graph TD
    A["Pointe"] --> B["Pointe"]
    C["Bague"] --> D["Bague"]
    E["Corps"] --> F["Corps"]
    G["1"] --> H["1"]
    I["2"] --> J["2"]
    K["3"] --> L["3"]
    M["Pointe"] --> N["Pointe"]
    O["Bague"] --> P["Bague"]
    Q["Corps"] --> R["Corps"]
    S["1"] --> T["1"]
    U["2"] --> V["2"]
    W["3"] --> X["3"]

Asymétrique

Asymetrique 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

graph TD
    A["Pointe"] --> B["1"]
    A --> C["2"]
    A --> D["3"]
    E["Bague"] --> F["2"]
    E --> G["3"]
    H["Corps"] --> I["3"]
    J["Pointe"] --> K["1"]
    J --> L["2"]
    J --> M["3"]
    N["Corps"] --> O["3"]
    P["1"] --> Q["Centre"]
    R["2"] --> S["Anneau"]
    T["3"] --> U["Centre"]
    V["Pointe"] --> W["Pointe Corps"]
    X["Corps"] --> Y["Corps"]
    Z["Pointe"] --> AA["Pointe Bague Corps"]
    AB["Corps"] --> AC["Corps"]
    AD["Pointe"] --> AE["Centre Anneau"]
    AF["Corps"] --> AG["Centre Anneau"]
    AH["Pointe"] --> AI["Centre Anneau"]
    AJ["Corps"] --> AK["Centre Anneau"]

marantz PROFESSIONAL 3 5 12 10 11 OUTPUT VOL 14 OUTPUT CAN OUTPUT CAN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN Main

13 14 M-PAPENTZ PROFESSIONAL IN: MATE IN: INCHES TOM: TONE 6 5 4 3 2 1 6 5 4 3 2 1 17 16 15 R L R L R L R L R L R L R L R L R L R L R L R L R L R L

Marantz RHA6 Main uscite Aux Send

Three schematic diagrams of electrical connectors with no text or symbols

graph TD
    A["Punta"] --> B["Anello"]
    A --> C["Manica"]
    D["Punta"] --> E["Anello"]
    D --> F["Manica"]
    G["1"] --> H["2"]
    G --> I["3"]
    J["1"] --> K["2"]
    J --> L["3"]
    M["Punta"] --> N["Anello"]
    M --> O["Manica"]
    P["1"] --> Q["2"]
    P --> R["3"]

Non bilanciato

Diagram showing various types of cable connectors with labeled pins and connection points

graph TD
    A1["Punta"] --> B1["1"]
    A2["Anello"] --> B2["2"]
    A3["Manica"] --> B3["3"]
    B1 --> C1["Punta"]
    B2 --> C2["Anello"]
    B3 --> C3["Manica"]
    C1 --> D1["1"]
    C2 --> D2["2"]
    C3 --> D3["3"]
    D1 --> E1["Centro"]
    D2 --> E2["Anello"]
    D3 --> E3["Anello"]
    E1 --> F1["Punta"]
    E2 --> F2["Manica"]
    E3 --> F3["Punta"]
    E1 --> G1["Punta"]
    E2 --> G2["Anello"]
    E3 --> G3["Manica"]
    G1 --> H1["Punta"]
    G2 --> H2["Anello"]
    G3 --> H3["Centro"]
    G1 --> I1["Centro"]
    G2 --> I2["Anello"]
    G3 --> I3["Anello"]
    I1 --> J1["1"]
    I2 --> J2["2"]
    I3 --> J3["3"]

13 14 15 16 17 READTHOUSE OUT R - L L R - L L R - L L R - L L R - L L R - L L R - L L R - L L R - L L R - L L R - L L R - L L R - L L R - L L R - L L R - L L R - L L R - R L R - R L R - R L R - R L R - R L R - R L R - R L R - R L R - R L R - R L R - R L R - R L R - R L

Technical Specifications

Inputs
Connectors	XLR and 1/4" (6.35 mm)
Type	Electronically servo-balanced, RF-filtered
Impedance	Balanced: >50 KΩUnbalanced: >25 KΩ
Maximum Input Level	+21 dBU typical, balanced or unbalanced
Aux In and Direct In
Connectors	1/4" (6.35 mm) TRS (tip = left; ring = right; sleeve = ground)
Impedance	Unbalanced: >25 KΩ
Maximum Input Level	+21 dBU, balanced or unbalanced
Output
Connectors	XLR and 1/4" (6.35 mm)
Type	Balanced/Unbalanced
Maximum Output Level	+21 dBu, balanced and unbalanced
Power Amplifier
Maximum Output Power	+21 dBmW
Min. Output Impedance	100 Ω
Maximum Gain	+20 dB
Performance
Frequency Response	10 Hz - 50 kHz, +0/-3 dB
Signal-to-Noise Ratio	>90 dB, unweightedReference: +4 dBu, 22 Hz - 22 kHz
THD	0.005%Reference: +4 dBu
Power	Power Consumption: 14 wattsInput Voltage: 120 V AC, 60 Hz; 230-240 V AC, 50 Hz
Dimensions(width x depth x height)	19.0" x 8.54" x 1.7"483 mm x 217 mm x 44 cm
Weight	6.4 lbs.2.9 kg

Specifications are subject to change without notice.

Trademarks & Licenses

Marantz is a trademark of D&M Holdings Inc., registered in the U.S. and other countries.

All other product or company names are trademarks or registered trademarks of their respective owners.

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