UP 2161 - Receiver RCF - Free user manual and instructions

Product Type	Audio Receiver
Brand	RCF
Model	UP 2161
Channels	2 (Stereo)
Power Output	2 x 100W RMS (8 ohms)
Frequency Response	20 Hz - 20 kHz
Inputs	2x XLR, 2x RCA, 1x 3.5mm jack
Outputs	2x Speakon, 2x Binding posts
Dimensions (W x H x D)	19" x 1.75" x 12" (483 x 44 x 305 mm)
Weight	7.5 kg (16.5 lbs)
Power Supply	AC 100-240V, 50/60 Hz
Power Consumption	200W max
Cooling	Built-in fan, variable speed
Protection	Overheat, short circuit, DC offset
Mounting	19" rack mountable (1U)
Material	Steel chassis, aluminum front panel
Color	Black
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 60°C
Humidity	85% non-condensing
Included Accessories	Power cord, rack ears, user manual
Maintenance	Clean with dry cloth; do not use solvents
Safety Instructions	Use grounded outlet; avoid moisture; do not block vents
Spare Parts	Contact RCF service center for replacement parts
Reparability	Repair by qualified technician only

Frequently Asked Questions - UP 2161 RCF

How do I connect my audio source to the UP 2161?

Use the XLR or RCA inputs for balanced or unbalanced signals. For consumer devices, use the 3.5mm jack input. Ensure the device is powered off before connecting.

What is the maximum power output of the UP 2161?

The UP 2161 delivers 2 x 100W RMS into 8 ohms, suitable for passive speakers in small to medium venues.

Can I bridge the amplifier for more power?

No, the UP 2161 is a stereo receiver and does not support bridged operation. Use the stereo outputs for two speakers.

Why does the receiver shut off during use?

This may be due to overheating or short circuit. Ensure proper ventilation, reduce volume, and check speaker connections. The thermal protection will reset after cooling.

What type of speakers can I use with the UP 2161?

Use passive speakers with an impedance of 8 ohms or higher. Minimum impedance 4 ohms per channel. Connector types: Speakon or binding posts.

How do I clean and maintain the receiver?

Unplug the unit and wipe with a soft dry cloth. Do not use liquid cleaners. Check air vents regularly for dust buildup.

Is the UP 2161 rack mountable?

Yes, it is designed for 19-inch rack mounting and occupies 1U (1.75 inches) of rack space. Rack ears are included.

What is the warranty period for the UP 2161?

RCF typically offers a 2-year warranty from the date of purchase. Check your local distributor for specific terms.

Where can I find the serial number?

The serial number is located on the rear panel near the power cord or on a label on the bottom of the unit.

How do I update the firmware?

The UP 2161 is an analog receiver and does not have firmware updates. It does not require software maintenance.

USER MANUAL UP 2161 RCF

OWNER MANUAL MANUALE D'USO

UP2081 UP2161 UP2321

• AMPLIFIER
• AMPLIFICATORE

INDEX INDICE

ENGLISH

SAFETY PRECAUTIONS

OPERATING PRECAUTIONS

DESCRIPTION

FRONT PANEL

REAR PANEL

OPERATION

LOUDSPEAKER CONNECTION

POWER SUPPLY VOLTAGE CHANGE

SPECIFICATIONS

EXAMPLE OF CONNECTIONS

ITALIANO

AVVERTENZE PER LA SICUREZZA

PRECAUZIONI D'USO

DESCRIZIONE

PANNELLO FRONTALE

PANNELLO POSTERIORE

FUNZIONAMENTO

COLLEGAMENTO DEI DIFFUSORI ACUSTICI

Before connecting and using this product, please read this instruction manual carefully and keep it on hand for future reference.

The manual is to be considered an integral part of this product and must accompany it when it changes ownership as a reference for correct installation and use as well as for the safety precautions.

RCF S.p.A. will not assume any responsibility for the incorrect installation and / or use of this product.

WARNING: To prevent the risk of fire or electric shock, never expose this product to rain or humidity.

SAFETY PRECAUTIONS

1. All the precautions, in particular the safety ones, must be read with special attention, as they provide important information.

2. POWER SUPPLY FROM MAINS

a. The mains voltage is sufficiently high to involve a risk of electrocution; therefore, never install or connect this product with the power supply switched on.
b. Before powering up, make sure that all the connections have been made correctly and the voltage of your mains corresponds to the voltage shown on the rating plate on the unit, if not, please contact your RCF dealer.
c. The metallic parts of the unit are earthed by means of the power cable. An apparatus with CLASS I construction shall be connected to a mains socket outlet with a protective earthing connection.
d. Protect the power cable from damage; make sure it is positioned in a way that it cannot be stepped on or crushed by objects.
e. To prevent the risk of electric shock, never open the product: there are no parts inside that the user needs to access.

1. Make sure that no objects or liquids can get into this product, as this may cause a short circuit. This apparatus shall not be exposed to dripping or splashing. No objects filled with liquid, such as vases, shall be placed on this apparatus. No naked sources (such as lighted candles) should be placed on this apparatus.
2. Never attempt to carry out any operations, modifications or repairs that are not expressly described in this manual.

Contact your authorized service centre or qualified personnel should any of the following occur:

• The product does not function (or functions in an anomalous way).
• The power supply cable has been damaged.
• Objects or liquids have got in the unit.

• The product has been subject to a heavy impact.

• If this product is not used for a long period, disconnect the power cable.

• If this product begins emitting any strange odours or smoke, switch it off immediately and disconnect the power supply cable.

• The terminals marked with the symbol 21a. HAZARDOUS LIVE and their connection is to be made by an INSTRUCTED PERSON or the use of ready-made cables is required.

• Do not connect this product to any equipment or accessories not foreseen. For suspended installation, only use the dedicated anchoring points and do not try to hang this product by using elements that are unsuitable or not specific for this purpose. Also check the suitability of the support surface to which the product is anchored (wall, ceiling, structure, etc.), and the components used for attachment (screw anchors, screws,

IMPORTANT

WARNING

brackets not supplied by RCF etc.), which must guarantee the security of the system / installation over time, also considering, for example, the mechanical vibrations normally generated by transducers.

To prevent the risk of falling equipment, do not stack multiple units of this product unless this possibility is specified in the user manual.

9. RCF S.p.A. strongly recommends this product is only installed by professional qualified installers (or specialised firms) who can ensure correct installation and certify it according to the regulations in force.

The entire audio system must comply with the current standards and regulations regarding electrical systems.

10. Supports and trolleys

The equipment should be only used on trolleys or supports, where necessary, that are recommended by the manufacturer. The equipment / support / trolley assembly must be moved with extreme caution. Sudden stops, excessive pushing force and uneven floors may cause the assembly to overturn.

1. There are numerous mechanical and electrical factors to be considered when installing a professional audio system (in addition to those which are strictly acoustic, such as sound pressure, angles of coverage, frequency response, etc.).

12. Hearing loss

Exposure to high sound levels can cause permanent hearing loss. The acoustic pressure level that leads to hearing loss is different from person to person and depends on the duration of exposure. To prevent potentially dangerous exposure to high levels of acoustic pressure, anyone who is exposed to these levels should use adequate protection devices. When a transducer capable of producing high sound levels is being used, it is therefore necessary to wear ear plugs or protective earphones.

See the technical specifications in loudspeaker instruction manuals to know their maximum sound pressure levels.

OPERATING PRECAUTIONS

IMPORTANT NOTES

To prevent the occurrence of noise on microphone / line signal cables, use screened cables only and avoid putting them close to:

• Equipment that produces high-intensity electromagnetic fields (for example, high power transformers)
• Mains cables
• Loudspeaker lines.

OPERATING PRECAUTIONS

• Do not obstruct the ventilation grilles of the unit. Situate this product far from any heat sources and always ensure adequate air circulation around the ventilation grilles.
• Do not overload this product for a long time.
• Never force the control elements (keys, knobs,etc.).
• Do not use solvents, alcohol, benzene or other volatile substances for cleaning the external parts of this product.

IMPORTANT NOTES

OPERATING PRECAUTIONS

RCF S.P.A. THANKS YOU FOR PURCHASING THIS PRODUCT, WHICH HAS BEEN DESIGNED TO GUARANTEE RELIABILITY AND HIGH PERFORMANCES.

DESCRIPTION

UP 2081, UP 2161 and UP 2321 are amplifiers with a (mic / line) 'MAIN INPUT' on either removable connector or XLR or RJ 45 (for quick connection of an RCF BM 3001 paging microphone through CAT5 cable) and an 'AUX INPUT' for music sources (e.g. CD players, tuners, etc.).

The 3 models have identical features, but their nominal power: 80 W (UP 2081), 160 W (UP 2161), 320 W (UP 2321).

The amplifier output is available either for low impedance loudspeakers (min. 4 Ω) or 100 – 70 V constant voltage line (for loudspeakers having 100 – 70 V transformers).

About the 'MAIN INPUT':

• It can have priority over the AUX INPUT (by means of an external command linked to either the removable connector or the RJ port).
• It has a 'presence' control and a separate high-pass filter that are useful for improving speech intelligibility.

Front panel LEDs indicate the device state (ON, PROT), the priority activation (PRIOR) and the signal / peak level (SIG/PK).

FRONT PANEL

UP2161 140 W POWER AMPLIFIER MASTER 0 10 POWER 1 2 3

1 Amplifier MASTER volume control

2 LEDs:

ON green: the device is switched on

PROT red: overload protection orange: thermal protection

PRIOR yellow: MAIN IN priority

SIG/PK green: the signal level is higher than -15 dB green + red: the signal level is in the 0 ÷ +2 dB range red (peak): the signal level is equal or higher than +3 dB

ON Prot Prior Sig/Pk

0 dB = signal level that allows to get the amplifier maximum power.

the internal 'limiter' circuit helps to avoid the amplifier overloading, yet it is advisable to reduce the master volume when the sig/pK led is continuously indicating red.

3 Main POWER switch (0 = off; I = on)

REAR PANEL

WARNING: AC 100 TANGLOSTER INLET, WITH IN INSTRUCTION MANUAL 112628V-500W+ - 300 W AC 200W/PUBS 7.1/ALBOWY AC 150W/PUBS TRA2ALBOWY CE CAUTION AVIS: REASURE 25 CHOC ELECTRAPHQUE - WE PAS QUARTER ATTENTION: WITH THE UN PULSE OF RECHARGE 25 CHOC TYPE, DEMANDER HAINT 25 REMACRER LE PULSE. WARNING: TO REDUCE THE RISK OF TIME OF ELECTRIC SHOCK OR NOT EXPOSED THIS EQUIPMENT TO REMAIN ON MODE LINE, DO NOT REMOVE CURRENT, BEET ON SWITCHABLE PARTS INSUL. REFER WORKING TO QUALIFIED PERSONNEL. RCF REQUIRED SIMILAR - ITALY UP2161 140 W MKER POWER 9 6 7 8 101 21B 5 BLUE INPUT L R TICKLE INPUT 100 RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET

4 MAIN INPUT settings through 5 dip-switches:

MIX - OFF - OFF - LOW LEV. LINE - PRIORITY HIGH PASS PHANTOM HIGH LEVEL MICRO

1 MIX – PRIORITY	MIX: the priority function is disabled (the AUX INPUT is always open, even if the priority command has been activated).	PRIORITY: the MAIN INPUT has priority over the AUX INPUT when either the command has been activated (CMD linked to GND on the removable connector) or priority is taken from a paging microphone connected to the RJ 45 port.
2 OFF – HIGH PASS	OFF: the audio hi-pass filter is not inserted (flat frequency response).	HIGH PASS: the audio hi-pass filter is inserted.
3 OFF – PHANTOM OFF: the PHANTOM power supply is disabled.		PHANTOM: the PHANTOM power supply is enabled.
4 LOW LEV. HIGH LEVEL	LOW LEVEL: the MAIN INPUT level is selectable through the dip-switch no.5 between LINE (-20 dBu) and MIC.	HIGH LEVEL: the MAIN INPUT level is set to 0 dBu.
5 LINE – MICRO	LINE: the MAIN INPUT level is set to LINE (-20 dBu).	MICRO: the MAIN INPUT level is set to MIC.

Examples of dip-switch 3, 4, 5 setting:

DIP 3 DIP 4 DIP 5 MODE USE (EXAMPLES)
OFF	HIGH LEVEL	---	HIGH LEVEL (0 dBu)	CD/MP3 players, tuners, message players, phone systems
OFF	LOW LEVEL	LINE	LINE (-20 dBu)	Audio sources having - 20 dBu output level
OFF	LOW LEVEL	MICRO MIC Dynamic microphones
PHANTOM	HIGH LEVEL	---	HIGH LEVEL with PHANTOM	Pre-amplified (0 dBu output) paging microphone that needs 'phantom' power supply
PHANTOM	LOW LEVEL	LINE	LINE with PHANTOM	BM 3001 paging microphone
PHANTOM	LOW LEVEL	MICRO	MIC with PHANTOM	Electret microphones

When a BM 3001 paging microphone is used, it is necessary to choose the 'LINE with PHANTOM' mode (dip-switch no.3 set to PHANTOM, dip-switch no.4 set to LOW LEVEL, dip-switch no.5 set to LINE).

MAIN INPUT

Removable connector:

1	+ hot audio input
2	- cold audio input
3	GND ground
4	CMD priority command (ON: when linked to ground)

MAIN INPUT

+ - GND CMD

RJ 45 socket (i.e. useful to connect a BM 3001 paging microphone).

NOTE: WHEN A BM 3001 PAGING MICROPHONE IS CONNECTED, IT IS NECESSARY TO SET THE DIP-SWITCHES 3, 4 AND 5 TO THE 'LINE WITH PHANTOM' MODE (SEE 4 MAIN INPUT SETTINGS THROUGH 5 DIP-SWITCHES).

BM 3001 shall be set to 'LOCAL'. Cable with RJ 45 plug:

PRIORITY COMMAND (TO GND) Audio signal | GND + - Green Blue Orange Orange/White Brown Brown/White Green Blue/White Blue Green/White Orange Orange/White 1234 5678 RJ

7 XLR connector:

BALANCED CONNECTION + hot - cold

GND ground

UNBALANCED CONNECTION

ALTHOUGH THE MAIN INPUT HAS 3 DIFFERENT CONNECTORS, THESE CANNOT BE USED TO MIX DIFFERENT SIGNALS; ONLY ONE AUDIO SOURCE CAN BE CONNECTED.

THE 3 CONNECTORS ARE LINKED ONE ANOTHER IN PARALLEL, THEREFORE EACH INPUT CAN BE USED ALSO AS A 'THRU' OUTPUT TO ADDITIONAL AMPLIFIER(s).

Do NOT USE AN UNBALANCED CONNECTION WHEN THE 'PHANTOM' POWER SUPPLY IS SWITCHED ON.

8 MAIN INPUT PRESENCE CONTROL (f = 2.15 kHz)

AUX INPUT

9 AUX INPUT TREBLE and BASS controls.
10 AUX INPUT GAIN control.
11 AUX INPUT with dual RCA connector.

THE TWO CHANNELS OF THE STEREO SOURCE CONNECTED TO THE AUX INPUT ARE SUMMED INTERNALLY (TO GET A MONO SIGNAL).

12 Amplifier output (UP 2081: max. 80 W, UP 2161: max. 160 W, UP 2321: max. 320 W) to loudspeakers (100 / 70 V constant voltage line - 4 Ω impedance). Use 1 output only (read the section 'Loudspeaker connection').
13 Mains power cable input (with fuse) Before connecting the power supply cable, verify that the apparatus voltage (230 or 115 V ac) corresponds to the available mains supply.

NOTE: THE FUSE TYPE IS MARKED ON THE REAR PANEL (BELOW THE MAINS POWER CABLE INPUT).

AUX INPUT

POWER ON (OR WHEN A PRIORITY COMMAND ENDS)

If no priority command is present, the MAIN INPUT and the AUX INPUT are mixed together.

the music volume (i.e. cd player, tuner, etc., connected to the aux input) can Be slightly adjusted By the gain (10) control on the rear panel.

PRIORITY

If the priority command is present, the AUX INPUT is momentary muted (until the priority ends).

THE 5 DIP-SWITCHES

The 5 dip-switches only affect the MAIN INPUT and allow to enable / disable the priority function, set the input sensitivity, turn PHANTOM power supply on / off and insert the high-pass filter.

RCF BM 3001 PAGING MICROPHONE (not included)

MAIN INPUT has also a RJ 45 socket, to which 1 (only) RCF BM 3001 paging microphone can be connected.

Note: when a Bm 3001 is connected, it is necessary to set the dip-switches 3, 4 and 5 to the "line with phantom" mode (see 4).

the Bm 3001 paging microphone shall Be set to 'local'.

LOUDSPEAKER CONNECTION

Use 1 output only, DO NOT MIX 100 / 70 V and 4 Ω CONNECTIONS!

100 / 70 V CONSTANT VOLTAGE OUTPUTS

• Each loudspeaker shall have a line transformer with the input voltage equal to the line voltage (100 / 70 V).
• The loudspeaker total power shall not be higher than the amplifier maximum power.

COM 4Ω 70V 100V 100 V 0 100V 0 100V 0 100V

COM 4Ω 70V 100V 70 V 0 70V 0 70V 0 70V

LOW IMPEDANCE OUTPUT (4 Ω)

• The loudspeaker total impedance shall not be lower than 4 Ω.
  Note: a total impedance equal to 4 Ω allows the amplifier maximum power delivery. A higher impedance leads to a reduction of the power delivered by the amplifier (e.g. 8 Ω: approx. ½ power, 16 Ω: approx. ¼ power).
  An impedance lower than 4 Ω overloads the amplifier.
• Loudspeaker models shall be chosen by considering the max. power (UP 2081: 80 W on a 4 Ω load, UP 2161: 160 W on a 4 Ω load, UP 2321: 320 W on a 4 Ω load) that the amplifier can deliver.
• Loudspeaker line should be as short as possible; long cables may need large wire cross-sections.
• Do not use, at the same time, both the low impedance output (4 Ω) and the constant voltage output (100V or 70V), as this overloads the amplifier.

COM 4Ω 70V 100V - +

POWER SUPPLY VOLTAGE CHANGE

IMPORTANT: This MANuAI section Is for qualified PeRsONNeI ONly.

The following INsTRucTIONs ARE TO be IgNORed by useRs.

Make sure the device is not connected to the mains (unplug the power supply cable). Remove the lid.

IMPORTANT

Interior view of an electronic device showing circuit board, capacitors, and connectors (no readable text or symbols)

In the picture 1, the voltage change connector is highlighted by a square.

If the mains voltage is 230 V, set the connector to the 230Vac position (see the picture 2), according to the PCB indication (looking at the connector front, the central pin is connected to the right one).

If the mains voltage is 115 V, set the connector to the 115 Vac position (see the picture 3), according to the PCB indication (looking at the connector front, the central pin is connected to the left one).

Refit the device lid.

Before connecting the device to the mains, make sure that the fuse (inside the IEC power supply connector of the rear panel, see 13) is the correct current rating for the mains voltages (read the fuse indication below the connector).

PICTURE 1

PICTURE 2

PICTURE 3

SPECIFICATIONS

AMPLIFIER

Output (RMS) power

Frequency response

SIGNAL / NOISE RATIO

- MAIN INPUT

- AUX INPUT

Distortion (at 1 kHz, nominal power)

AUX INPUT tone controls

- Bass

- Treble

MAIN INPUT PRESENCE control

MAIN INPUT High-pass filter

INPUT SENSITIVITY / IMPEDANCE

LOW LEVEL - MICRO (main input)

LOW LEVEL – LINE (main input)

HIGH LEVEL (main input)

AUX INPUT

'Phantom power' voltage / current

LOUDSPEAKER OUTPUTS

Low impedance

Constant voltage (UP 2081)

Constant voltage (UP 2161)

Constant voltage (UP 2321)

PROTECTIONS

Amplifier

Power supply

GENERALE

Operating voltage

Max. consumption (power)

Dimensions (w, h, d)

Net weight

80 W (UP 2081),

160 W (UP 2161),

320 W (UP 2321)

50 Hz ÷ 13.5 kHz

60 dB

80 dB

< 0,3 %

± 8 dB @ 80 Hz

± 8 dB @ 13 kHz

+ 10 dB @ 2,15 kHz

150 Hz

Balanced, - 56 dBu (max - 25 dBu) / 10 kΩ

Balanced, -28 dBu (max 0 dBu) / 10 kΩ

Balanced, -7 dBu (max + 19 dBu) / 10 kΩ

Adjustable -4 ÷ +15 dBu (max +22 dBu) / 20 kΩ

32 V / 18 mA

4Ω

70 V (63 Ω) / 100 V (125 Ω)

70 V (31 Ω) / 100 V (62 Ω)

70 V (16 Ω) / 100 V (31 Ω)

Overload, Short circuit, Thermal fuses

115-230V / 50-60 Hz

160 W (UP 2081),

350 W (UP 2161),

600 W (UP 2321)

13 12 WARNING AC VOLTAGE SECTOR INRICE, SETT TO INSTRUCTION MANUAL THYSEAN SERVICE - 203 W AC DISCONNECTED TALAWAY AC SWITCHER TO SALTAWAY CAUTION AVIS: INSIGHT OF CHOC ELECTROPE - NO PAD DAIR ATTENTION: ULTRATE IN FABILE OR NO CHANGE BY MINE TYPE, DESPANDER ROUNT OR REPLACEMENT PUMBLE. NEW CNT'S CABLES FOR WMING GRAPES WITH THE NAME FOR AN INFLATION, RECONNECT SUPPLY CORD BEFORE DAMAGING TUBE WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOOLS OR NOT EXPOSED THIS EQUIPMENT TO SIGN OR MOUNTING, DO NOT REMOVE CANAL NO USE DERIVIDANCE PARTS WITHOUT REF either SNRING TO QURRIED PERSONNEL. UP2161 140 W MIXER POWER CAUTION MAIN OF ELECTRIC SHOCK DO NOT OPEN CAUTION: REPLACE WITH THE NAME TYPE FLOOR AND RATING, RECONNECT SUPPLY CORD BEFORE DAMAGING TUBE WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOOLS OR NOT EXPOSED THIS EQUIPMENT TO SIGN OR MOUNTING, DO NOT REMOVE CANAL NO USE DERIVIDANCE PARTS WITHOUT REF either SNRING TO QURRIED PERSONNEL.

+ - GND CMD

USCITA BASSA IMPEDENZA (4 Ω)

Interior view of an electronic device showing internal components like capacitors, inductors, and connectors (no visible text or symbols)