Rogue Audio RH-5 Manuel utilisateur

RH-5

Headphone Amplifier

Owner’s Manual

Rogue Audio, Inc.

3 Marion Lane

Brodheadsville, A 18322

Issue date: 11/30/2016

TABLE OF CONTENTS

1) Introduction 3

2) Unpacking your headphone amp 3

3) Installing The RH-5 into your system 4

4) Operation of the RH-5 amplifier 5

5) The optional phono preamplifier 7

6) Troubleshooting 10

7) Registration of your RH-5 10

8) Fuse value 11

9) Specifications 11

10) roduct Warranty 12

INTRODUCTION

Congratulations on your purchase decision! We at Rogue Audio truly believe that our equipment

provides the “smartest” value in high-end audio. If you have never owned a vacuum tube

headphone amplifier you will be thrilled by the silky-smooth sound and incredible detail that

only a tube amplifier can provide. And with the RH-5 headphone amp, you can be sure that you

are getting the very best in tube amplification. We at Rogue Audio are extremely proud of our

products and want you to enjoy them to their fullest potential. So please, take the time to read

through this short manual so that you can be confident that you have set up your amplifier

properly.

UNPACKING YOUR PREAMPLIFIER

Tools require : none

WARNING - This amplifier uses voltages that coul cause injury or eath. Never

open the amplifier while it is plugge in, an always wait at least 30 minutes after

turning the unit off before unplugging the electrical cor an opening the unit.

Lethal voltages can remain in the electronics after the unit is unplugge .

Your new amplifier has been painstakingly inspected for cosmetic flaws during and after

assembly. In order not to damage the cosmetic appearance of your amplifier it is important that

you follow the unpacking instructions carefully.

1. Open the shipping carton and remove the box containing the remote control and power cord

from the carton.

2. Carefully lift the amplifier out of the carton, and remove the foam pads and plastic bag.

3. Save the packing materials. The packing materials and box have been carefully designed to

protect your valuable equipment during shipping so you don’t want to throw them away.

INSTALLING THE RH-5 HEADPHONE AMP INTO YOUR SYSTEM

lace the RH-5 on a flat stable surface with at least 1” of airspace above the amplifier for

ventilation. Do not place any other electronic components or any other objects on top of the

amplifier.

Insert the IEC end of the detachable power cord into the rear of the amp (shown in Figure 1).

lug the opposite end of the power cord into an appropriate power outlet. It is recommended that

both the headphone amp and power amplifier (if you are using the RH-5 as a preamplifier) are

plugged into the same wall outlet if possible (perhaps using a power outlet strip) in order to

avoid creating a ground loop.

Figure 1

Connecting sources to the RH-5:

Connections are made to the inputs on the rear panel of the amplifier shown in Figure 1. Line

level (CD player, tuner, DAC, etc…) connections are made via the three pairs of RCA inputs or

the pair of XLR balanced inputs. If you have the optional phono card and are using a turntable

connect it to the Line 1 inputs. There is also a grounding lug for the turntable if required.

RCA preamp

outputs

Line 1-3 RCA

inputs

hono ground IEC

Receptacle

XLR preamp

outputs

XLR inputs Rear on/off

hono in (optional)

OPERATION OF THE RH-5 HEADPHONE AMP

Powering up the System:

After all your connections have been made, you are now ready to turn the amplifier on. The

primary power switch is located on the rear of the unit and is shown in figure 1. You can leave

this switch on all the time and it will keep the solid state portions of the RH-5 energized even

though the unit is powered down. Very little power is used in standby and the RH-5 will sound

its best shortly after turn on. The power button located on the front panel is shown in figure 2 and

is used to power the RH-5 on and off between listening sessions. Your amplifier features soft-

starting to prolong tube life as well as to suppress turn-on transients. A countdown timer on the

display shows the time remaining before the RH-5 is ready to use.

When the RH-5 is turned on or off with the rear switch you should not have headphones plugged

in as there are noise transients that could damage sensitive headphones. During normal turn

off/turn on with the front button this is not a concern. When using the front power button all

previous listener settings are retained such as volume and input selection.

To avoid source transients turn on all sources prior to turning on the RH-5 and turn off the RH-5

first when finished listening.

NOTE – The RH-5 will not play music for approximately 20 secon s after power on

while the amplifier goes through its sequential start-up.

Figure 2

Gain

Volume

Control

4 in XLR

Display on/off

(push button)

Input Selector

ower

Button

3 pin XLR right3 pin XLR left

¼” TSR jacks Mute

Hea phone Connections:

The RH-5 is designed to accept standard ¼” (6.3mm) TSR jacks, 3 pin XLR connectors and 4

pin XLR headphone cables as shown in figure 2. The RH-5 is capable of operating multiple

pairs of headphones simultaneously.

Switches, Buttons an Controls:

Volume Control

The volume control has 185 steps which vary in 0.5 dB increments. At turn on the RH-5 defaults

to a relatively low volume. The volume can be turned continuously until reaching a reading at

either 1 (min) or 185 (max).

Selector Button

The input selector button accesses four different sets of inputs. Each successive push will step

through the three RCA inputs and the XLR input. Note that if the optional phono board is

installed that it replaces the Line 1input.

Mute Button

ushing the mute button mutes the headphone outputs and the variable outputs. The letter “M”

appears on the display to show that the RH-5 is in mute.

Gain Button

ushing the gain button steps the output level through three different gain settings. The

difference between the gain settings allows a wide range of volume operation to accommodate

various headphone sensitivities. For example, if you have very sensitive headphones you can use

gain level “1” and have a useful span of the volume control before the RH-5 plays too loudly.

Conversely, if your headphones are low sensitivity you can use gain setting “2” or “3” so that

you get full volume. There is no performance advantage between the gain settings.

Display On/Off Switch (locate in the volume knob)

ushing in the volume knob will toggle the display on and off. When the display is “off” only a

small blue LED segment remains to show that the RH-5 is turned on. When the display is

toggled back on the current input and volume are displayed. You can adjust the volume level

while the display is off.

Using the RH-5 as a stereo preamplifier:

There are two pairs of variable (preamplifier) outputs on the RH-5 which can be used to drive an

external power amplifier. One pair is RCA and the other pair XLR (balanced).

If you are using the RH-5 as a preamplifier turn on the RH-5 first and then the power amp. Turn

off the power amp first and then the RH-5. Also note that the mute button will mute both the

headphones and preamp outs. If you want to listen to the headphones only you will need to turn

off the external power amp.

Remote Control

The RH-5 hand held remote provides most of the functions located on the RH-5 front panel.

Note that the on/off button requires being held down for a moment to avoid accidental turn

on/off.

Phono Amplifier (optional)

The RH-5 hono board provides a high performance phono section that is suitable for the vast

majority of phono cartridges available today. It is user configurable and has adjustments for gain,

and resistive loading. The RH-5 w/phono option is shippe with the gain set at 44 B an the

loa ing set at 47K. This set up is appropriate for most high output cartridges. Before removing

the cover to make any loading or gain adjustments, power off the RH-5 and let it drain off any

voltages for at least 30 minutes. Leave the RH-5 plugged into the wall during this time so that

the voltages can drain down properly. After the RH-5 has sat for at least 30 minutes disconnect

the power cord from the wall or rear of the unit. lease note that best results will be obtained

with cartridges of 0.5mV output and higher. Lower values will work but you may not achieve the

desired maximum volume with low sensitivity headphones.

Setting the cartri ge loa ing – Remove the 10 cover screws using a #2 hillips screwdriver

and pull off the cover.

WARNING - This amplifier uses voltages that coul cause injury or eath. Never

open the amplifier while it is plugge in, an always wait at least 30 minutes after

turning the unit off before unplugging the electrical cor an opening the unit.

Lethal voltages can remain in the electronics after the unit is unplugge .

Input select

(up/down)

Mute Display on/off

On/off

Volume

(up/down)

The cartridge loading DI switches are located near the rear of the optional phono board (figure

3). It is important to point out that the cartridge manufacturers recommended loading should be

considered as a starting point and not an absolute. Systems and turntable setups vary

significantly and if you want to get the most out of your analog setup, take the time to find the

settings that sound best in your system.

Figure 3

DIP switches for resistive loading

Slide switches for setting the phono gain.

Resistive loading – There are two sets of DI switches (S3 and S5) for setting the resistive

loading (one per channel). The four switches are labeled 1,2,3 and 4. Figure 3 shows the switches

in the 300 Ω position. The loading options are given in Table 1 on the following page.

Resistive Loa ing Table (see figure 3)

1 2 3 4 resistance

on on on on 20 Ω

on off off off 30 Ω

off on on off 75 Ω

off on off off 100 Ω

off off on on 230 Ω

off off on off 300 Ω

off off off on 1K Ω

off off off off 47K Ω

Table 1

Setting the phono gain - The two slide switches S6 and S4 are used to set the gain and are

located on the front right side of the optional phono board (Figure 3).

If the switches are pushed towards the rear 56 dB of gain is provided which is sufficient for most

low output cartridges. When the switches are pushed forward (towards the front of the RH-5)

the phono provides 44 dB of gain which is suitable for moving magnet (MM) and high output

moving coil (MC) cartridges. A setting of 56 dB gain and 300 Ω loading is shown in Figure 3.

Phono noise – lease note that the phono amp is high gain and as you turn up the volume you

may start to increase the noise floor compared to the other inputs. While the RH-5 phono board

has a Signal to Noise ratio of over 70 dB some noise is inevitable with a phono preamp

(particularly through headphones). The volume control is limited to 160 steps in phono.

TROUBLESHOOTING

Unit does not turn on

Check that the power cord connection is secure and that the rear power switch is turned on

Unplug the power cord from the rear of the RH-5. Wait ten minutes then plug the preamp

back in. Wait 30 seconds then press the power button on the front panel (e.g. reboot).

Unit does not play

Check that the interconnects are connected to the proper input or output.

Check that the interconnects are connected securely.

One channel does not play

Check that the tubes are operational and seated correctly and securely

For further problems, please call Rogue Audio Technical Support at 570-992-9901.

OWNER AND WARRANTY REGISTRATION FORM

Included with this manual is an Owner and Warranty Registration Form. lease take a minute to

fill out this card and return it to Rogue Audio. This card must be returned within 30 days of

purchase to validate the warranty.

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