Rockville RCS Series User manual

RCS350-6
19˝ RACK MOUNTABLE 350 WATT
COMMERCIAL AMPLIFIER/RECEIVER
WHO READS MANUALS?
OWNER’S MANUAL
Instead, go to vimeo.com/342145237 or scan the QR
code and watch a short video, which shows you how to
set this item up and how to use it.
If you prefer written instructions please read ahead!
With Rockville we offer many options.
Missing items? If you ordered a bundle that includes more than one product and you
are missing part of your bundle then it just means your order shipped from two different
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or inquiries, feel free to call our customer support center at 646-758-0144, Monday
through Thursday, 9am to 10pm EST, and Fridays, 9am to 3pm EST.

2

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Thank you for purchasing this Rockville product. Please read this installation guide carefully
for proper use of your Rockville RCS350-6 Rack Mountable Commercial Amplifier/Receiver.
Should you need tassistance please call our technical help line at 1-646-758-0144, Monday
through Thursday, 9am to 10pm EST., and Fridays, 9am to 3pm EST.
IMPORTANT SAFETY INSTRUCTIONS
TO REDUCE THE RISK OF ELECTRICAL SHOCK, NEVER OPEN THE UNIT. NO
USER SERVICEABLE PARTS INSIDE. WE RECOMMEND TAKING THE UNIT TO A
QUALIFIED SERVICE TECHNICIAN FOR ANY REPAIRS.
• Do not expose this unit to any kind of moisture.
• Please ensure that the unit is situated in a properly ventilated area.
• Do not attempt to operate this unit if the power cord has been frayed or broken.
• Do not attempt to break o or remove the ground prong. This prong is used to reduce
the risk of electrical shock and re in case of an internal short.
• Do not operate this unit if it is damaged.
• This unit is intended for indoor use only.
• During long periods of non-use, disconnect the unit from power source.
• Always mount this unit in a safe and stable manner.
• Power supply cords should be routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying particular attention to the point
of exit from the unit.
• To avoid unnecessary wear and to improve the unit’s lifespan, unplug the unit when not
in use for extended periods of time.
chasing this Rockville pr
oper use of your Rockville RCS350-6 Rack Mountable Commer
Should you need tassistance please call our technical help line at 1-646-758-0144, Monday
ough Thursday, 9am to 1
ANT SAFETY INSTRUCTIONS
TO REDUCE THE RISK OF ELECTRICAL SHOCK, NEVER OPEN THE UNIT
TS INSIDE. WE RECOMMEND T
VICE TECHNICIAN FOR ANY REP
• Do not attempt to operate this unit if the power cord has been frayed or broken.
• Do not attempt to break o or remove the ground prong. This prong is used to reduce
• Power supply cords should be routed so that they are not likely to be walked on or

4
Introduction
Rockville is proud to introduce our new RCS series of products. The RCS350-6 is a
350-Watt 6-zone rack mountable digital hybrid amplifier/receiver. This amplifier is capable
of 70-volt, 100-volt, 8-ohm, and 4-ohm applications. This makes it perfect for use in a
restaurant/bar/café/lounge/school/conference room or any other setting where many
speakers are needed.
This model offers 350 watts at 70-volt or 100-volt and the power can be split up into 6
zones. (Most professionals recommend you not exceed 80% of the amp power, so we
recommend your speakers’ watts not to be more than 270 – 280 in total on the taps.)
Each zone can have the power split as you please. For example, you can put all 270 – 280
watts into one zone with one volume control. You can also have zone 1 with 100 watts,
zone 2 with 60 watts, and the rest of the zones with 120 watts. Just add the total watts
up to be under 270 – 280 and you are OK. No complex wiring required like with 8-ohm
systems.
With 3 mic inputs; 2 of which have echo control (Mic 2 and Mic 3), you can use this am-
plifier for announcements, speeches, or even Karaoke night! This model also includes a
chime button so you can create a chime sound before making announcements. The RCS
series features Bluetooth audio streaming so you can play your favorite music or access
a playlist right from your phone! This amp also features both USB and SD inputs, allowing
you to play audio stored on a USB thumb drive or SD Card. There are also 2-line inputs
that allow you to plug in another audio device such as an MP3 player, CD player, TV, etc.
Individual volume knobs for each of the 6 zones and volume knobs for each of the 3 mic
inputs gives you full control over your system.
The built-in clipping limiter function protects your speakers and the amp from overheat-
ing. For further protection there is also a cooling system in this amplifier that will keep the
components running cool, making the amplifier durable and reliable.
Our goal with the RCS series was to make it possible for anyone to install 70-volt sys-
tems on their own without spending thousands of dollars on a contractor. This model
makes it a breeze to connect many speakers and multiple external sources. We inten-
tionally use common plugs like RCA and ¼˝ on our model to make this more universal
and user friendly. With our unique design you can feel confident in your DIY ability when
installing our commercial system!
oud to intr
att 6-zone rack mountable digital hybrid amplifier/r
70-volt, 100-volt, 8-ohm, and 4-ohm applications. This makes it perfect for use in a
estaurant/bar/café/lounge/school/confer
e needed.
This model offers 350 watts at 70-volt or 1
zones. (Most pr
fers 350 watts at 70-volt or 1
ofessionals recommend you not exceed 80% of the amp power
ecommend your speakers’ watts not to be mor
Each zone can have the power split as you please. For example, you can put all 270 – 280
watts into one zone with one volume contr
zone 2 with 60 watts, and the r
zone 2 with 60 watts, and the rest of the zones with 1
up to be under 270 – 280 and you are OK. No complex wiring r
With 3 mic inputs; 2 of which have echo contr
With 3 mic inputs; 2 of which have echo contr
plifier for announcements, speeches, or even Karaoke night! This model also includes a
eate a chime sound befor
eate a chime sound befor
eaming so you can play your favorite music or access
om your phone! This amp also featur
ed on a USB thumb drive or SD Car
om your phone! This amp also featur
ed on a USB thumb drive or SD Car
that allow you to plug in another audio device such as an MP3 player
Individual volume knobs for each of the 6 zones and volume knobs for each of the 3 mic
otects your speakers and the amp fr
e is also a cooling system in this amplifier that will keep the
e is also a cooling system in this amplifier that will keep the
components running cool, making the amplifier durable and r
Our goal with the RCS series was to make it possible for anyone to install 70-volt sys
tems on their own without spending thousands of dollars on a contractor
tems on their own without spending thousands of dollars on a contractor
eeze to connect many speakers and multiple external sour
tionally use common plugs like RCA and ¼˝ on our model to make this mor
. With our unique design you can feel confident in your DIY ability when

5
What is 70 Volt?
70-volt systems are the number one choice for any application where you want to install
multiple speakers. With 70 volt there are a lot of advantages over 8-ohm systems. One
of the main advantages is the simplicity of the wiring as well as how easy it is to match
up speakers with the amplifier. For example, with this 350-watt /70-volt amplifier, you can
install speakers that total close to 280 watts. It does not matter if it is 12 speakers that are
20 watts each or 25 speakers that are tapped at 10 watts each. You always want your 70
volt amp to have at least 15 or 20% more power than the combined watts your speak-
ers are tapped at. When we say the word tap, what we are referring to are the selectors
that many speakers in 70 volt have on them. For example, some speakers might have
selectable options of 1.5w, 3w, 5w, 10w. What this does is limit how many watts the built-
in transformer on the speaker will allow the speaker to get from the amplifier. What this
allows for is full customization of your sound for your space. In a restaurant, for example,
you can tap your dining room speakers at 5 watts, the speakers by the bar area at 10
watts, the ones in the hallway at 3 watts, and the speakers in the bathrooms at 1.5 watts.
Another great feature with 70 volt is you can mix and match any 70-volt speakers wheth-
er they are ceiling speakers, wall mounted speakers, subwoofers, etc.
70-volt systems allow you to run very long lines of speaker wire without signal loss. This
makes it ideal when running long speaker leads.
The wiring is simple. You just wire all the positive terminals of the speakers to the positive
70-volt terminals of the amplifier. The negative terminals on the speaker simply get wired
to the negative terminals on the amp. You do not have to worry about impedance. The
power is constant.
olt?
e the number one choice for any application wher
multiple speakers. With 70 volt ther
of the main advantages is the simplicity of the wiring as well as how easy it is to match
up speakers with the amplifier
install speakers that total close to 280 watts. It does not matter if
20 watts each or 25 speakers that ar
volt amp to have at least 1
e tapped at. When we say the wor
volt amp to have at least 15 or 20% mor
e tapped at. When we say the wor
that many speakers in 70 volt have on them. For example, some speakers might have
selectable options of 1.5w, 3w, 5w, 1
in transformer on the speaker will allow the speaker to get fr
allows for is full customization of your sound for your space. In a r
allows for is full customization of your sound for your space. In a r
oom speakers at 5 watts, the speakers by the bar ar
watts, the ones in the hallway at 3 watts, and the speakers in the bathr
e with 70 volt is you can mix and match any 70-volt speakers wheth
e ceiling speakers, wall mounted speakers, subwoofers, etc.
e ceiling speakers, wall mounted speakers, subwoofers, etc.
70-volt systems allow you to run very long lines of speaker wir
70-volt systems allow you to run very long lines of speaker wir
makes it ideal when running long speaker leads.
e all the positive terminals of the speakers to the positive
e all the positive terminals of the speakers to the positive
. The negative terminals on the speaker simply get wir
ou do not have to worry about impedance. The

6
1. Power switch
2. SD card input slot (32GB max)
3. LCD display
4. USB input port (32GB max)
5. Remote control IR Sensor
6. Chime button: for making announcements via Mic 1 input
7. Independent mic volume controls
8. Line input volume controls
9. MP3 module volume control (SD/USB/Bluetooth/FM radio)
10. Status indicator LEDs: Power - Indicates that the unit is powered on.
Fault - Indicates that the amplifier has encountered a fault due
to overheating or overload.
Clip - Indicates that the output signal is exceeding the
supply voltage.
11. Zone volume detented knobs
12. MP3 module: Mode - Switch between SD, USB, Bluetooth, and FM radio. Press and
hold to enter standby mode. Press and hold to exit standby mode.
Play/Pause - Press to play or pause playback. Press to autoscan and
save stations in FM radio mode.
Menu/Record - (USB/SD only) Press the button to enter folders. Press
and hold to begin recording. Press again to stop recording.
Repeat - (USB/SD only) Press once to repeat single track. Press
twice to repeat all tracks. Press three times to repeat all files
within a folder. Press four times to enter random mode.
/(Previous/Rewind) - Press this key to return to the previous track.
Press and hold to rewind current track (USB/SD only).
Press and hold to decrease volume (Bluetooth only).
Press to move back through saved stations (Radio only).
/(Next/Fast-Forward) - Press this key to proceed to the next track.
Press and hold to fast-forward current track (USB/SD only).
Press and hold to increase volume (Bluetooth only).
Press to move forward through saved stations (Radio only).
13. Priority mic 1 ¼˝ TRS input: Input signal detected from this port will override all other
input signals. Works in conjunction with the Chime (see item 6) and Mute features (see item 23).
14. Mic echo controls (Please note, echo effect will only affect Mic 2 and Mic 3 inputs):
Repeat - Sets the number of times the echo is repeated.
Speed - Controls the speed at which the repetitions occur.
Echo - Controls the volume of the echo effect.
Functions
11 2 3
12 13 14 15 16 17
4 5 6 7 8 9 10 11
1. Power switch
d input slot (32GB max)
12
12
d input slot (32GB max)
4. USB input port (32GB max)
ol IR Sensor
6. Chime button: for making announcements via Mic 1 input
7. Independent mic volume contr
ols
ol (SD/USB/Bluetooth/FM radio)
ol (SD/USB/Bluetooth/FM radio)
Power -
Indicates that the unit is power
Indicates that the unit is power
Indicates that the amplifier has encounter
to overheating or overload.
Indicates that the output signal is exceeding the
to overheating or overload.
Indicates that the output signal is exceeding the
supply voltage.
Switch between SD, USB, Bluetooth, and FM radio. Pr
standby mode. Press and
ess to play or pause playback. Pr
save stations in FM radio mode.
(USB/SD only) Press the button to enter folders. Pr
ess the button to enter folders. Pr
ecording. Press
ess once to r
epeat all tracks. Press thr
ess four times to enter random mode.
ess this key to r
ess this key to return to the pr
ewind current track
ease volume
ough saved
ess this key to proceed to the next track.
d curr
current track (USB/SD
volume (Bluetooth
saved stations (Radio
om this port will override all other
orks in conjunction with the Chime (see item 6) and Mute features (see item 23).
fect Mic 2 and Mic 3 inputs):

7
1918 20 2221
23 24 25 26 27 28 29 30
13. Priority Mic1 ¼˝ TRS input: Input signal detected from this port will override all other
input signals. Works in conjunction with the Chime (see item 6) and Mute features (see item 23).
14. Mic Echo controls (Please note, echo effect will only affect Mic 2 and Mic 3 inputs):
Repeat - Controls the length of time the echo is repeated.
Speed - Controls the speed at which the echo occurs.
Echo - Controls the volume of the echo effect.
15. 2 Band EQ controls: Adjust the bass and treble levels of all output.
16. Master volume control
17. Signal input level indicator LEDs
18. FM antenna port
19. 70V/100V direct speaker output binding posts
20. 4 to 16-ohm direct speaker output binding post
21. COM post: Speaker common (negative) binding post
22. User serviceable fuse compartment: 7A-250V
23. Mute: Adjusts the mute level during signal override of all channels by Mic 1 input
24. ¼˝ TRS Mic inputs
25. RCA line inputs
26. RCA line output
27. 70V Zone outputs
28. AC 110V/60Hz power input
29. Ground terminal
30. Cooling fan
3. Priority Mic1 ¼
input signals. W
˝ TRS input: Input signal detected fr
orks in conjunction with the Chime (see item 6) and Mute featur
ols (Please note, echo ef
ols the length of time the echo is r
ols the speed at which the echo occurs.
ols the speed at which the echo occurs.
ols the volume of the echo ef
ols: Adjust the bass and tr
7. Signal input level indicator LEDs
ect speaker output binding posts
ect speaker output binding posts
ect speaker output binding post
. COM post: Speaker common (negative) binding post
2. User serviceable fuse compartment: 7A-250V
23. Mute: Adjusts the mute level during signal override of all channels
23. Mute: Adjusts the mute level during signal override of all channels

8
Functions (continued)
Remote Control
1. ON/OFF
2. Mode: Switch between SD, USB, Bluetooth, and FM radio.
3. Change preset EQ: Normal, rock, pop, classic, jazz, and country.
4. Mute
5. VOL-/ VOL+: Increase or decrease the volume.
6. Play/Pause: Press to play or pause playback. Press to for two seconds auto-scan and
save stations in FM radio mode.
7. : Previous/Next song
8. REP: Press once to repeat single track. Press twice to repeat all tracks. Press three
times to repeat all files within a folder. Press four times to enter random mode.
9. U/SD: Press ot switch between USB and SD input.
10. Number Pad: Select music files by number.
10
2
7
3 4
98
5
6
1
7
3
5
8
Switch between SD, USB, Bluetooth, and FM radio.
ock, pop, classic, jazz, and country
ess to for two seconds auto-scan and
epeat all tracks. Press thr
ess four times to enter random mode.

9
Selecting Output Wire and Connectors
It is recommended you use high quality 16 AWG, 2 or 4 conductor, heavy gauge, CL2 or
CL3 rated, 100% Oxygen-Free Copper (OFC) speaker wire. CL2 and CL3 ratings refer to
the cable jacket’s fire resistance and the voltage capacity of the wire. While both cables
have the same flame resistance capability, the CL2 cable can handle voltage spikes of up
to 150 volts while the CL3 can handle up to 300 volts. When using the 70V/100V speaker
zone output screw connectors, use terminal forks up to 10 AWG (recommended) or bare
wire. Below is a chart to help you select the appropriate size wire based on the amp to
speaker distance.
The RCS350-6 features one RCA line output. We recommend you use high quality RCA
cables such as Rockville’s RNRTR, RNRMR, or RCDR series.
Selecting Input cables
There are three ¼˝ balanced TRS mic inputs and two RCA inputs on the RCS350-6. We
recommend you use high quality Rockville cables like the RCXMB, RCXFB, or RCTR series
¼˝ TRS cables and the RNRTR, RNRMR, or RCDR series RCA cbales.
Rack Mounting
This unit should be on the bottom of the rack or above any equipment that does not
produce heat. Be sure to provide at least 1 RU (Rack Unit, 1.75˝) of space above and below.
Preferably, the side wall should be at least 2˝ from the sides of the amplifier and the back
of the rack should be open. This will ensure a source of cool air to all sides of the amplifier.
Setup
The RCS350-6’s 70V and 100V connections can be set up in a variety of ways. Please note
that utilizing direct speaker connections and speaker zone connections simultaneously is
not recommended and will cause damage to the amplifier and the speakers.
Connections
Multi-Zone 70V Speaker Output (Screw Connectors)
You may connect any number of 70-volt speakers to each zone as long as the total output
for any one zone does not exceed 100 watts and the overall total output of the zones does
not exceed 350 watts. As with the direct outputs, best practice is to allow for about 10 –
20% “head room” or extra power. So, the total output power of the speakers connected to
any one zone should not exceed 80 – 90 watts, and the total power output of all the zones
combined should not exceed 270 – 280 watts.
WIRE SIZE
10 AWG
12 AWG
14 AWG
16 AWG
4 OHM LOAD
100 FEET
60 FEET
40 FEET
24 FEET
8 OHM LOAD
200 FEET
120 FEET
80 FEET
48 FEET
16 OHM LOAD
400 FEET
240 FEET
160 FEET
96 FEET
ATTENTION: Check local code requirements
before installing in-ceiling or in-wall speaker wires.
We recommend you use CL2 or CL3 rated, Oxygen-
Free Copper (OFC) speaker wire.
CAUTION: Never use shielded cable for output wiring.
WARNING: For low impedance loads only.
00% Oxygen-Fr
s fire r
have the same flame resistance capability
50 volts while the CL3 can handle up to 300 volts. When using the 70V
zone output screw connectors, use terminal forks up to 1
e. Below is a chart to help you select the appr
speaker distance.
4 OHM LO
4 OHM LOAD
100 FEET
60 FEET
40 FEET
8 OHM LO
200 FEET
120 FEET
80 FEET
48 FEET
48 FEET
Check local code requir
e installing in-ceiling or in-wall speaker wir
ecommend you use CL2 or CL3 rated, Oxygen-
ee Copper (OFC) speaker wire.
Never use shielded cable for output wiring.
ecommend you use high quality RCA
es one RCA line output. W
TR, RNRMR, or RCDR series.
For low impedance loads only.
e recommend you use high quality RCA
TR, RNRMR, or RCDR series.
ee ¼˝ balanced TRS mic inputs and two RCA inputs on the RCS350-6. W
ecommend you use high quality Rockville cables like the RCXMB, RCXFB, or RCTR series
TR, RNRMR, or RCDR series RCA cbales.
TR, RNRMR, or RCDR series RCA cbales.
This unit should be on the bottom of the rack or above any equipment that does not
Unit, 1.
the sides
ce of cool air to all sides of the amplifier
00V connections can be set up in a variety of ways. Please note
ect speaker connections and speaker zone connections simultaneously is
ecommended and will cause damage to the amplifier and the speakers.
e speakers.
ou may connect any number of 70-volt speakers to each zone as long as the total output
00 watts and the overall total output of the zones does
ect outputs, best practice is to allow for about 1

10
In this example we have various speaker combinations (totaling 17 speakers)
connected to various zones, none exceeding more than 80 watts per zone and with
a total overall zone power rating of 215 watts, well below the maximum total zone
power output of 350 watts.
Multi-Zone Connection Example
6 speakers/15 watts each/90 watts total
3 speakers/25 watts each/75 watts total
8 speakers/10 watts each/80 watts total
Connections (continued)
In this example we have various speaker combinations (totaling
connected to various zones, none exceeding mor
a total overall
power output of 350 watts.
Multi-Zone Connection Example
connected to various zones, none exceeding mor
a total overall zone power
power output of 350 watts.
/15 watts each/90 w

11
Multi-Speaker 100V Connection
Multi-Speaker 70V Connection
70V/100V Direct Speaker (Binding Post Terminals)
You may connect any number of speakers to the 70 or 100-volt direct speaker output
binding posts as long as the total wattage does not exceed 350 watts. Best practice is
to allow for about 10 – 20% “head room” or extra power to handle any unusual amp
requirements such as a deep bass note or a booming finale.
to allow for about 1
ements such as a deep bass note or a booming finale.
Multi-Speaker 70V Connection
Multi-Speaker 70V Connection

12
4 to 16-Ohm Direct Speaker Output (Binding Post Terminals)
You can connect two speakers to this terminal as long as the final impedance does not
fall below 4 ohms. Although it is possible to connect more than two speakers to these
terminals, it is not recommended. Please consult a professional if you intend to do so as
incorrect installation could lead to irreparable damage to your amp and speakers.
4-Ohm Direct Speaker Connection (wired in series)
8-Ohm Direct Speaker Connection (wired in series)
8 ohm 8 ohm
8 ohms at terminal
4 ohms at terminal
4 ohm 4 ohm
Connections (continued)
CAUTION: We recommend you
consult a professional if you plan on
wiring more than 2 speakers to the 4 to
16-ohm output.
WARNING: Do not use Direct Output (binding
posts) and Zone Output (screw connectors) at
the same time. Doing so will cause permanent
damage to the amp.
WARNING: Total impedance of your speakers must not be less than 4 ohms.
fall below 4 ohms. Although it is possible to connect mor
not recommended.
ect installation could lead to irr
ect installation could lead to irr
CAUTION:
We recommend you
consult a professional if you plan on
wiring more than 2 speakers to the 4 to
16-ohm output.
ARNING:
Total impedance of your speakers must not be less than 4 ohms.
ect Speaker Connection (wir
4 ohm
e than 2 speakers to the 4 to
16-ohm output.
ed in series)
4 ohms at ter

13
In-Wall Volume Controls
Although the RCS350-6 offers individual zone volume controls, there may be occasions
when you may want to adjust the volume of a specific zone without having to return to
the amplifier. In-wall volume controls are the perfect solution and they are relatively easy
to set up. Below is a general wiring guide to assist you in the installation of in-wall volume
controls. As with any installation that requires running wires through your walls, be sure to
check local code requirements.
A typical in-wall volume control consists of a face
plate with a volume control knob on the front side
and a step down transformer with in/out connections
on the back side. Keep in mind that these volume
controls come in a range of wattage ratings. The
control you use must match the wattage of your
speakers. You can use a higher rated control for
lower wattage speakers, but you cannot use a lower
rated control for higher wattage speakers.
In-Wall Volume Control Installation
This example shows connections for one
zone. You can connect volume controls to
any of the 6 zones.
Using high quality 16 AWG, 2 or 4 conductor,
heavy gauge, CL2 or CL3 rated, 100%
Oxygen-Free Copper (OFC) speaker wire,
connect the desired zone output’s +/- screw
terminals to the IN+ and IN- terminals on
the volume control. Next, connect the +/-
speaker wires from your speakers to the SP-
and SP+ terminals on the volume control.
Make sure to observe proper polarity on all
connections.
Please note, wall controller wattage
rating must match the wattage of the
connected speakers.
ATTENTION: Check local code requirements before
installing in-ceiling or in-wall speaker wires. We
recommend you use CL2 or CL3 rated, Oxygen-Free
Copper (OFC) speaker wire.
. In-wall volume contr
to set up. Below is a general wiring guide to assist you in the installation of in-wall volume
ols. As with any installation that r
check local code requirements.
A typical in-wall volume contr
volume control
and a step down transformer with in/out connections
on the back side. Keep in mind that these volume
ols come in a range of wattage ratings. The
and a step down transformer with in/out connections
on the back side. Keep in mind that these volume
ols come in a range of wattage ratings. The
you use must match the wattage
ou can use a higher rated contr
lower wattage speakers, but you cannot use a lower
ol for higher wattage speakers.
ol for higher wattage speakers.
Check local code requirements befor
installing in-ceiling or in-wall speaker wir
ecommend you use CL2 or CL3 rated, Oxygen-Fr
This example
zone. You can connect
ou can connect
any of the 6 zones.
Using high quality 1
heavy gauge, CL2 or CL3 rated, 1
Oxygen-Free Copper (OFC) speaker wir
connect the desired zone output’
ed zone output’
terminals to the IN+ and IN- terminals on
the volume control. Next, connect the +/-
ol. Next, connect the +/-
speaker wires from your speakers to the SP-
and SP+ terminals on the volume contr
e to observe pr
connections.
Please note, wall controller wattage
rating must match the wattage of the
connected speakers.

14
Operation
Bluetooth Pairing
To connect your iPod, iPhone, MP3 player, Android phone, or any other Bluetooth-capable
device, follow the steps listed below.
1. Make sure the RCS350-6 unit’s power switch is in the ON position.
2. Turn on the Bluetooth feature on your device and ensure that it is in “discoverable”
mode.
3. Push the Mode button on the unit until you are in Bluetooth mode (LCD screen will
display the word “Bluetooth”).
4. Once in Bluetooth mode, the unit should automatically pair with your device and you
will hear a voice prompt. If not, look for “RCS350-6” on your device and select it.
5. Once connected, the LCD screen will display the word “Connected”.
Please note, the unit will remember the last paired device.
Bluetooth Playback
You can control playback from your device or from the MP3 control panel on the RCS350-6:
1. Press Play/Pause to begin or pause music playback.
2. To skip songs, press the / buttons.
3. Volume can be controlled from your device as well as the RCS350-6. Please note,
there are three volume controls on the amplifier which can affect Bluetooth playback, the
/ & / buttons (see item 12 in the Functions section; default setting for these
controls is max volume), the MP3 volume knob, and the Master volume knob. These con-
trols must be set separately as they work independently of each other.
USB/SD
1. Inserting a USB flash drive or an SD card into the corresponding port/slot will set the
RCS350-6 to USB/SD mode and it will automatically begin to play music.
2. To skip songs, press the / buttons. Press and hold to rewind or fast forward ( / ).
Please note, this function is not available in Bluetooth mode.
3. To access files and folders within a USB drive or SD card, press the Menu button and use
the / buttons to navigate the files and folders.
4. Volume is controlled via the MP3 volume knob and the Master volume knob. Please
note, these controls must be set separately as they work independently of each other.
FM Radio
1. Press the Mode button until the LCD display indicates you are in radio mode.
2. Make sure the antenna is up and fully extended.
3. Press the Play/Pause button to automatically scan and save all available stations.
4. Use the / buttons to navigate through saved stations.
5. Volume is controlled via the MP3 volume knob and the Master volume knob. Please
note, these controls must be set separately as they work independently of each other.
device, follow the steps listed below
e the RCS
n on the Bluetooth featur
3. Push the Mode button on the unit until you ar
display the word “Bluetooth”).
4. Once in Bluetooth mode, the unit should automatically pair wi
will hear a voice pr
d “Bluetooth”).
4. Once in Bluetooth mode, the unit should automatically pair wi
will hear a voice prompt. If not,
5. Once connected, the LCD screen will display the wor
Please note, the unit will remember the last pair
ol playback from your device or fr
ess Play/Pause to begin or pause music playback.
ess the / buttons.
om your device as well as the RCS350-6. Please note,
ols on the amplifier which can af
ols on the amplifier which can af
2 in the Functions section;
olume knob, and the Master volume knob. These con
ols must be set separately as they work independently of each other
ols must be set separately as they work independently of each other
1. Inserting a USB flash drive or an SD card into the corr
RCS350-6 to USB/SD mode and it will automatically begin to play
ess and hold to r
ess and hold to r
Please note, this function is not available in Bluetooth mode.
o access files and folders within a USB drive or SD car
o access files and folders within a USB drive or SD card, press the Menu button and use
buttons to navigate the files and folders.
and the
ols must be set separately as they work independently of each other
ess the Mode button until the LCD display indicates you ar
ess the Play/Pause button to automatically scan and save all available stations.
ess the Play/Pause button to automatically scan and save all available stations.
volume knob. Please
ols must be set separately as they work independently of each other

15
Features
Specifications
Inputs and Outputs
• Rockville RCS350-6 350-Watt 19˝ Rack Mountable Commercial Amplifier/Receiver
• Capable of 70 volt, 100 volt, 8 ohm, and 4 ohm
• 70/100-volt RMS Power: 352 Watts
• 6 Zones – each zone has a separate volume control
• Built-in Bluetooth audio streaming
• FM radio tuner
• USB input (32GB max,)
• SD card slot (32GB max)
• USB/SD supported file formats: MP3, WAV
• Separate volume control for MIC1, MIC2, MIC3, MP3, LINE1, and LINE2
• Echo control for the mic inputs 2 and 3 with speed and repeat adjustments
• Built-in clipping limiter to protect the amp and speakers
• Bass and Treble control
• Built-in EQ presets (via remote): Normal, rock, pop, classic, jazz, and country.
• Chime button for making announcements
• Top quality aluminum panel with industrial-grade knobs
• 5-segment signal level indication
• Multi function remote control
• Built-in cooling system keeps component cool at all times
• Power Requirements: 110V/60Hz
• A Weighted Signal to Noise (@ 1W) -57.0dBA
• A Weighted Signal to Noise (referenced to full 4-ohm power) -81.6dBA
• Frequency Response: 58Hz – 20Khz
• Frequency Response VS THD+M 1W @ 8 Ohms: 0.89%
• Weight: 30.9 lbs
• Dimensions: 19˝ x 16˝ x 4˝ inches
• (2) Sets RCA Line inputs
• (3) Mic inputs
• RCA Line output
• 100V speaker red positive speaker output terminal
• 70V speaker red positive speaker output terminal
• 8-ohm red positive speaker output terminal
• Shared negative speaker output terminal
Record Function
While in USB/SD mode, you can record to a USB or SD card. Simply press and hold the
record button for 3 seconds to begin recording. Press again to stop recording.
• Rockville RCS350-6 350-W
• Capable of 70 volt, 100 volt, 8 ohm, and 4 ohm
00-volt RMS Power: 352 W
• 6 Zones – each zone has a separate volume contr
• Built-in Bluetooth audio str
• FM radio tuner
• Built-in Bluetooth audio streaming
• USB input (32GB max,)
d slot (32GB max)
• USB/SD supported file formats: MP3, W
ol for MIC1, MIC2, MIC3, MP3, LINE1, and LINE2
ol for the mic inputs 2 and 3 with speed and r
• Built-in clipping limiter to protect the amp and speakers
emote):
Normal, rock, pop, classic, jazz, and country
• Chime button for making announcements
op quality aluminum panel with industrial-grade knobs
• Built-in cooling system keeps component cool at all times
enced to full 4-ohm power) -81
enced to full 4-ohm power) -81
equency Response VS THD+M 1W @ 8 Ohms: 0.89%

16
Troubleshooting
PROBLEM
No sound/low
sound/distorted
sound
No power
Mic feedback or
poor sound
Buzzing sound
1. Make sure the unit is plugged in and the power switch is in the
ON position.
2. Check that the power cable is properly plugged into the wall socket.
3. Check and replace the fuse if necessary.
4. If people or equipment tend to step and roll over or stretch
your power cable it can get damaged. Check the power cable for
damage. If the cable is damaged, discontinue using the unit until
the cable can be repaired.
1. Point mics away from any nearby speakers.
2. Make sure the microphones are on and the volume controls are
properly set.
3. Make sure the microphone cables are properly connected and
that you are using good quality TRS mic-specific cables.
Make sure you are using the proper cable. Check the require-
ments of the connected gear and the inputs on the amplifier and
make sure you are using the appropriate cable. This unit’s ¼˝ mic
outputs are TRS (balanced) so you will need a TRS mic cable. For
line inputs be sure to use high quality RCA cables.
1. Check that all appropriate cables and wires are plugged in correctly.
2. Check the Master Volume and Zone volume settings.
3. Check the Microphone, Line input, and MP3 volume settings.
4. Check the volume settings on your input devices.
5. If using wall volume controls, be sure the volume is set properly.
6. Make sure the proper input source is selected.
7. Make sure your are using the proper type of speakers.
9. Make sure speakers are wired correctly (plus to plus, minus to
minus; not plus to minus or vice versa).
10. Make sure the speakers are wired to the correct outputs (no
4 to16-ohm speakers should be wired to the 70/100-volt direct
outputs or zoner outputs).
11. Make sure speaker transformer taps are set properly.
12. Make sure speakers’ power ratings match the amplifier’s.
SOLUTION
Bluetooth pairing
fails
1. Check to see that both devices are turned on and that your
Bluetooth device is discoverable.
2. Turn both devices off and then on again.
3. Make sure you've selected the proper source.
4. Make sure that the Bluetooth device is within 5 feet of the unit.
5. Move both devices away from other Bluetooth devices.
6. Make sure that the unit is not paired to a previously paired device.
No SD or USB
playback
1. Make sure you've selected the proper source.
2. Make sure that the audio files are in the specified format:
MP3, WAV.
3. Make sure the USB drive’s/SD card’s capacity is not more than 32GB.
No sound/low
sound/distorted
4.
your power cable it can get damaged. Check the power cable fo
damage. If the cable is damaged, discontinue using the unit until
sound/distorted
the cable can be r
1. Check that
2. Check the Master V
3.
Check the Micr
4. Check the volume settings on your input devices.
5. If using wall
using wall
6. Make sure the pr
7. Make sure your ar
9. Make sure speakers ar
minus; not plus to minus or vice versa).
0. Make sure the speakers ar
e the speakers ar
6-ohm speakers should be wir
outputs or zoner outputs).
e you ar
outputs or zoner outputs).
e speaker transformer taps ar
e speakers’ power ratings match the amplifier’
e using the pr
ments of the connected gear and the inputs on the amplifier and
e using the appr
e TRS (balanced) so you will need a TRS mic cable. For
e to use high quality RCA cables.
om any nearby speakers.
ophones are on and the volume contr
ophone cables are pr
e using good quality TRS mic-specific cables.
1. Check to see that both devices ar
again.
oper
e that the Bluetooth device
is within 5 feet of the unit.
Bluetooth devices.
a previously
eviously paired device.
oper source.
e in the specified format:
s capacity is not more than 32GB.

17
Responsible party name: Rockville
Address: 600 Bayview Ave.
Entrance A
Inwood, NY 11096
Hereby declares that the product(s) RCS350-6 complies with FCC rules as mentioned in
the following paragraph:
This device complies with Part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired operation.
Note: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
FEDERAL COMMUNICATIONS COMMISSION COMPLIANCE INFORMATION
ess: 600 Bayview A
Entrance A
Inwood, NY 11096
es that the pr
the following paragraph:
This device complies with Part 15 of the FCC rules. Operation is
two conditions: (1) this device may not cause harmful interfer
must accept any interfer
This device complies with Part 15 of the FCC rules. Operation is
two conditions: (1) this device may not cause harmful interfer
must accept any interference received, including interfer
Note: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC rules. These limits ar
otection against harmful interference in a r
equency energy and, if not installed and used in accor
the instructions, may cause harmful interference to radio communications. However
ence will not occur in a particular installation. If this equipment does cause
ence to radio or television reception, which can be determined by tur
eception, which can be determined by tur
f and on, the user is encouraged to try to corr
eceiving antenna.
ease the separation between the equipment and r
ease the separation between the equipment and r
Connect the equipment to an outlet on a circuit dif
Consult the dealer or an experienced radio/TV technician for help.

©2021 ROCKVILLE // Features and specifications are subject to change and or improvement without notice.
RockvilleAudio.com