RF12 – Single Loaded Bass Cabinet


The RF12 bass cabinet is ideally suited for small bars.

The compact ported reflex enclosure incorporates a 350w RMS 12” bass driver specifically designed to extend the low frequency and provide a warm punchy bass in a small bar environment. A small shelf port ensures optimum cabinet tuning. The RF12 is ideal for permanent installations in small bars that require extended bass frequency for small DJ pa and background music reproduction.

Request a Price

Contact our friendly expert team today:

Enquire Now Call: 0161 477 9300

  • Main Application
    Small bar bass frequency reinforcement
  • Complementary Speakers
    Can be reinforced with TFR 25T/ TFR 801 full range cabinets
  • Dimensions
    W: 38cm. H: 46cm. D: 46cm
  • Power
    350w RMS. 700w Peak
  • Drivers
    1 x 12” bass driver
  • Mounting
    Floor based
  • Quick Specs
    RF12 features a single loaded 12” reflex bass driver and has a frequency response of 45Hz to 120Hz
  • Model
  • Type
    Vented Reflex Bass Cabinet
  • Frequency Response
    From 45Hz – 120Hz
  • Rated Power
    350w RMS – 700w Peak
  • Sensitivity
  • Maximum SPL
  • Dispersion
  • Nominal
    8 Ohms
  • Bass
    12” Driver
  • Mid
  • High Frequency
  • Crossover
  • Enclosure
    Multi Laminated Birch Ply
  • Finish
    Textured Black Paint
  • Grille
    Black Perforated Steel
  • Connector
    2 x Neutrik NL4
  • Fittings
  • Dimensions
    W: 38cm. H: 46cm. D: 46cm
  • Weight

Each connector panel has two Neutrik Speakon connectors wired in parallel. The second connector allows use of a short link lead to power a secondary parallel loudspeaker. The connectors are wired as follows:

  • 2 Core cable
  • Pin 1 Positive
  • Pin 1 Negative

When connecting Blacka Group sound reinforcement to an amplifier it is recommended that the return resistance of the cable used is less than one tenth of the normal impedance of the system or systems in parallel the chart below gives an indication of the maximum possible cable runs for conductor cross sectional areas.

  • Conductor CSA
    Maximum Cable Lengths
  • 4 OHMS
    8 OHMS
    10 OHMS
  • 1.0 mm
    11 m
    22 m
    44 m
  • 1.5 mm
    17 m
    34 m
    68 m
  • 2.0 mm
    22 m
    44 m
    88 m
  • 2.5 mm
    29 m
    58 m
    116 m
  • 4.0 mm
    44 m
    88 m
    176 m
  • 6.0 mm
    66 m
    132 m
    264 m

The Blacka Group RF12 Cabinets are designed to be used with professional power amplifiers capable of producing 350w – 700w power output into 4 ohms.

Care should be taken to avoid amplifier clipping, it is important to understand that a low power amplifier driven into clipping is more likely to damage a loud speaker than a higher power amplifier used within its ratings. Primarily because music signals have a high peak to average crest factor. When an amplifier is severely overdriven its output waveform is clipped resulting in squared off peaks and thus reducing the crest factor. In extreme cases, the waveform can approach that of a square wave. An amplifier is normally capable of producing far more power under these conditions than its undistorted rated power output. The use of very high power amplifiers with outputs greater than those recommended is discouraged.

Care should be taken to avoid switch on surges, which can result in momentary power peaks in excess of specified ratings. When powering up a sound system it is important to switch on the amplifiers after the mixer and control electronics have stabilised. When powering down the system, reverse the sequence and switch off the amplifiers first.

The RF12 units can be used with a wide array of Blacka Group speakers. Typical configurations are listed below

Small Retail / Restaurant: TFR 5T – TFR 25T – TFR 801 – TFR 1001 – TFR 1201 –

It is important that loudspeaker systems are used in a safe manner. Please take some time to review the following points concerning use of Blacka Group Loudspeakers.

Professional loudspeakers are capable of producing extremely high sound levels and should be used with care. Hearing loss is cumulative and can result from levels above 90 DB if people are exposed for a long period , never stand close to loudspeakers driven at high level.


  1. Ensure that the floor or stage is level and solid.
  2. Be aware that these speakers produce very high levels of output. So if place on a shelf area be aware that they can move or creep.