TFR 52T is a versatile compact high powered 2 way full range system which features 2 x 5 inch LF drivers and a 1'' exit compression driver mounted on a 90° horizontal 90° vertical constant directivity HF horn. It is ideal for applications which require compact size. High output and with its trapezoidal cabinet shape it can be multiple arrayed horizontally for higher efficiency point source with increased coverage. It can be either suspended or wall mounted with an additional bracket

The Blacka Acoustics P.I Series Systems are designed to be used with professional power amplifiers capable of producing 250 - 500 W power output into 4 ohms.

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 Acoustics 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

There are many different system combinations possible when the TFR Full Range Systems are used with the FR and SS Sub Base Systems. The TFR 801 is typically used as a ceiling or wall mounted full range speaker positioned in singular format around a dance floor area or used as stand alone speaker units in zones in which a high quality music source is needed away from a main dance floor area. Common applications include VIP or seated area of a nightclub also ideal in bar or restaurant areas.

Because the TFR 8-01 is a passive system, with a high level of acoustic design, it can be used without a controller provided recommended amplifier power is not exceeded and care is taken to avoid amplifier clippingUse of an optional controller will provide specific low frequency EQ and built in limiters which will result in improved bass response and system protection.

The passive add on arrangement provides a simple way of increasing bass performance without the need for additional amplifiers. This configuration will present a 4 OHM load to the amplifier. An external controller device for this passive configuration is optional just performing limiting functions without any additional system EQ.

It is important that loadspeaker systems are used in a safe manner. Please take some time to review the following points concerning the use of Blacka Acoustics 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 exposed for a long period. never stand close to loudspeakers driven at high level.

1. 1.1 Ensure that the stand will support the weight of the speaker by checking the stand manufacturers rating.

1.2 Make sure that the stand is placed on a level surface and that its legs are fully extended.

1.3 Do not place more that one speaker on each stand.

1.4 Run cables so that they do not present a trip hazard which could pull the speaker over.

1.5 When used outdoors in the wind it may be necessary to add some weight to the base of the stand.

1.6 When using a pole mount with a sub bass system observe similar precautions.

2. STACKING

   2.1 Ensure that the floor or stage is level and solid.

2.2 Do not stack speakers too high outdoors where winds could topple the stack.

2.3 Be aware that speakers producing very high power levels can move or creep, to avoid this place friction .......material between the floor and the speaker and between each speaker.

3. RIGGING AND SUSPENSION
   
   WARNING
   Suspending the system should only be done by qualified personnel following safe rigging practices. Secure fixings to the buildings structure are vital. Seek help from architects, structural engineers or other specialists if in any doubt.
   
   PSI loudspeaker enclosures are designed for portable and installation application and can be suspended singularly by means of the threaded inserts provided or by compatible Blacka Acoustics wall brackets. The TFR 8-01, 10-01, 12-01, 12-02, 15-02S and 12-02L enclosures are fitted internally with steel corner reinforcement brackets to ensure that each cabinet is strong enough to be hung from its top. Never suspend one enclosure from another to form an array or cluster using these fittings.
   
   The common practice of using commercially available eye bolts for suspension should only be undertaken with great caution. Eye bolts are strongest along the thread axis. Angling the enclosure will result in an angled pull and it is important to use bolts that are safe in these circumstances. Only forged shoulder eye bolts should be considered and it is important that the thread length is at least 40mm. A flat washer should be inserted between the eye bolt and the enclosure. Formed eye bolts i.e. those which are formed from steel rod bent into an eye should be avoided.