UP 1121 - Receiver RCF - Free user manual and instructions

Product Type	Power Amplifier
Brand	RCF
Model	UP 1121
Amplifier Type	Analogue
Max Output Power	120 W RMS
Frequency Response	60 Hz – 15 kHz
Distortion (at Max Power)	< 1.5%
Input Sensitivity	1 V (+2 dBu)
Input Impedance	10 kΩ (balanced)
Output Options	100 V / 70 V constant voltage, 4 Ω low impedance
AC Power Supply	115 V or 230 V ~ (selectable)
DC Power Supply	24 V dc (external battery, 15 A protection)
Max Consumption	350 W
Operating Temperature	-10 to +45 °C (+14 to +113 °F)
Dimensions (W x H x D)	431 mm x 88 mm x 385 mm (19" rack, 2U)
Net Weight	12 kg
Front Panel Controls	Bass, Treble, Master volume, Power switch
Indicators	Power on (blue), Signal: -20 dB (green), -9 dB (orange), 0 dB peak (red)
Audio Input	Balanced line level on terminal strip (+, -, GND)
Loudspeaker Connection	Terminal strip: COM, 4 Ω, 70 V, 100 V (use only one output)
Mounting	19" rack mountable with included ears
Cleaning	Dry cloth only; no solvents
Safety	Class I construction, protective earth connection, do not open, no user-serviceable parts

Frequently Asked Questions - UP 1121 RCF

What is the maximum output power of the RCF UP 1121?

The amplifier delivers a maximum output power of 120 W RMS.

Can the amplifier be powered by batteries?

Yes, it can be powered by an external 24 V dc battery source with a 15 A current rating protection facility. Ensure correct polarity (+/-).

Which loudspeaker outputs are available?

The amplifier offers three output options: 100 V constant voltage, 70 V constant voltage, and 4 Ω low impedance. Use only one output at a time.

How do I connect an unbalanced audio source?

For unbalanced connection, short the '-' contact to the 'ground' contact on the input terminal strip. Connect the signal to '+' and ground to 'GND'.

What is the input sensitivity and impedance?

Input sensitivity is 1 V (+2 dBu) and input impedance is 10 kΩ balanced.

How do I select the AC mains voltage?

Use the voltage selector switch on the rear panel to choose either 115 V or 230 V. The corresponding fuse must be correct (T2.5AL for 230V, T5AL for 115V).

What do the front panel LEDs indicate?

Blue LED indicates power on. Green LED indicates -20 dB signal, orange -9 dB, and red indicates 0 dB peak. Reduce the master volume if the red LED stays steady.

What are the dimensions and weight?

Dimensions are 431 mm x 88 mm x 385 mm (19-inch rack, 2U). Net weight is 12 kg.

How should I clean the amplifier?

Use a dry cloth only. Do not use solvents, alcohol, benzene, or other volatile substances.

What safety precautions should be observed?

Do not open the unit (no user-serviceable parts inside), ensure proper earthing, protect from moisture, and disconnect power if unusual odours or smoke occur. Only qualified personnel should service.

USER MANUAL UP 1121 RCF

OWNER MANUAL MANUALE D'USO

UP 1121

• AMPLIFICATORE
  (UNITÀ DI POTENZA)
• POWER AMPLIFIER

INDEX INDICE

ENGLISH

SAFETY PRECAUTIONS

DESCRIPTION

INSTALLATION INTO 19" RACK CABINETS

FRONT PANEL

REAR PANEL

LOUDSPEAKER CONNECTION

SPECIFICATIONS

4

6

6

6

7

8

9

ITALIANO

AVVERTENZEPERLASICUREZZA

DESCRIZIONE

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.

2.1 PRIMARY POWER SUPPLY FROM MAINS

• The mains voltage is sufficiently high to involve a risk of electrocution: never install or connect this product when its power cord is plugged in.
• 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.
• The metallic parts of the unit are earthed by means of the power cord.
• An apparatus with CLASS I construction shall be connected to a mains socket outlet with a protective earthing connection.
• Protect the power cord from damage. Make sure it is positioned in a way that it cannot be stepped on or crushed by objects.
• To prevent the risk of electric shock, never open this product: there are no parts inside that the user needs to access.

2.2 SECONDARY (/ EMERGENCY) POWER SUPPLY THROUGH BATTERIES

• WARNING: use external DC power source with 15A current rating protection facility.
• The apparatus operating voltage is 24 V dc (therefore, it is necessary to connect in series several batteries having a lower nominal voltage, example: 2 x 12 V).
• Always use rechargeable batteries, which need to be chosen according to the maximum possible load.
• Verify the polarity of batteries is correct.
• Do NOT short-circuit batteries (i.e. connecting the 2 opposite poles together with metallic wires).

• Throw empty batteries away according to your country laws about ecology and environment protection.

• 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.

• 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 power cord has been damaged.
• Objects or liquids have got in the unit.
• The product has been subject to a heavy impact.

- The product does not function (or functions in an anomalous way).

1. If this product is not used for a long period, disconnect the power cord (and or batteries).

2. If this product begins emitting any strange odours or smoke, switch it off immediately and disconnect the power cord (and / or batteries).

IMPORTANT

WARNING

WARNING

1. The terminals marked with the symbol 4 are HAZARDOUS LIVE and their connection is to be made by an INSTRUCTED PERSON or the use of ready-made cables is required.
2. 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 (wall plugs, screws, 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.
3. 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.
4. 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.
5. Mechanical and electrical factors need 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.).
6. 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.
7. 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.
8. Do not overload this product for a long time.
9. Never force the control elements (keys, knobs, etc.).
10. Do not use solvents, alcohol, benzene or other volatile substances for cleaning the external parts of this product. Use a dry cloth.

NOTES ABOUT AUDIO SIGNAL CABLES

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.

NOTES ABOUT AUDIO SIGNAL CABLES

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

DESCRIPTION

UP 1121 is a 120 W power amplifier having a single balanced 'line' level audio input.

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).

In addition to the connection to the mains, it can also be powered by batteries (voltage: 24 V dc), in order to ensure its proper operation even when the mains supply is unavailable.

Front panel LEDs indicate "power on" and the audio signal level.

INSTALLATION INTO 19" RACK CABINETS

Fix the amplifier with the included rack ears to the 19" rack front. Add RCF P/AER-1V front ventilation panels, at least one between each amplifier pair.

FRONT PANEL

UP1121 120 W POWER AMPLIFIER

1 BASS tone control (use a screwdriver to adjust, centre position: flat response).
2 TREBLE tone control (use a screwdriver to adjust, centre position: flat response).
3 MASTER volume control (use a screwdriver to adjust).
4 Main POWER switch (0 = off; 1 = on).
5 'POWER ON' LED (when lit: the amplifier is operating).
6 LEDs indicating the audio signal level:
green = -20 dB; orange: -9 dB; red: 0 dB (peak).

0 dB = SIGNAL LEVEL THAT ALLOWS TO GET THE AMPLIFIER MAXIMUM OUTPUT POWER.

IT IS ADVISABLE TO REDUCE THE MASTER VOLUME 3 WHEN THE RED LED IS STEADY LIT.

7 Balanced 'line' level AUDIO INPUT (terminal strip):

+ hot

GND ground

- cold

THE BALANCED CONNECTION IS ALWAYS PREFERABLE, ESPECIALLY WITH CABLES LONGER THAN 5 METERS.

If necessary, short the '-' and 'ground' contacts to get an unbalanced connection:

+ signal

- // GND ground

8 Amplifier output to loudspeakers (terminal strip), available as:

- 100 / 70 V constant voltage line

- Low impedance (min. 4 Ω).

Use 1 output only (see the manual section 'Loudspeaker connection').

Max. output power is 120 W.

9 Input for the secondary 24 V dc power supply (batteries), necessary to ensure the amplifier operation even if the mains supply is unavailable.

Make sure the connection polarity + / - is correct and use a cable having wires with a suitable section (at least: 2.5 mm ^4 ).

WARNING: USE EXTERNAL DC POWER SOURCE WITH 15A CURRENT RATING PROTECTION FACILITY.

10 Mains connector with fuse.

Before connecting the power cord, verify the mains voltage (either 230 V or 115 V \~) corresponds to the amplifier operating voltage set by the respective selector 12.

	VOLTAGE: 230 V	VOLTAGE: 115 V
FUSE	T2.5AL 250V	T5AL 250V

11 Additional earth screw terminal.

THE METALLIC PARTS OF THE UNIT ARE EARTHED BY MEANS OF THE POWER CORD.

AN APPARATUS WITH CLASS I CONSTRUCTION SHALL BE CONNECTED TO A MAINS SOCKET OUTLET WITH A PROTECTIVE EARTHING CONNECTION.

12 Operating ac voltage selector (either 230 V or 115 V).

WARNING: A WRONG SETTING CAN DAMAGE THE AMPLIFIER!

Use 1 output only (among the 3 available: 100 V, 70 V, 4 Ω).

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.

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. 1/2 POWER, 16 Ω: APPROX. 1/4 POWER). AN IMPEDANCE LOWER THAN 4 Ω OVERLOADS THE AMPLIFIER.
• Loudspeaker models shall be chosen by considering the max. power 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.

AMPLIFIER TYPE Analogue

MAX. OUTPUT POWER	120 W
FREQUENCY RESPONSE	60 Hz ÷ 15 kHz
DISTORTION (AT MAX. POWER)	< 1.5%
INPUT SENSITIVITY	1 V (+ 2 dBu)
INPUT IMPEDANCE	10 kΩ (balanced)
AMPLIFIER OUTPUT TO LOUDSPEAKERS	100 V (83 Ω) - 70 V (42 Ω)- 4 Ω
LEDS	Blue: power ongreen: - 20 dB signalorange: - 9 dB signalred: 0 dB signal (peak)
POWER SUPPLY	15 V / 230 V ~, 24 V dc
MAX. CONSUMPTION	350 W
OPERATING TEMPERATURE	-10 ÷ +45 °C (+14 ÷ +113 °F)
DIMENSIONS (W, H, D)	431 mm, 88 mm, 385 mm(19" rack - 2 units)
NET WEIGHT	12 kg

AVVERTENZE PER LA SICUREZZA

IMPORTANTE

USCITA BASSA IMPEDENZA (4 Ω)