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B225
USER MANUAL
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CONTENTS 1. Introduction .......................................................................................................... 5 2. Unpacking............................................................................................................ 5 3. Connectors/Cabling ............................................................................................. 5 4. Polarity Checking .................................................................................................
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1. Introduction Thank you for purchasing Tannoy B225. The Tannoy B225 is a 15” direct radiating bass loudspeaker system. For installations that require extended bass response from an ultra-compact cabinet, with flying and wall-bracket mount capabilities, the B225 makes the ideal companion to Tannoys' i/T series of sound reinforcement loudspeakers. The B225 uses a high efficiency 15” driver, combining powerful, natural bass performance with compact dimensions. M10 flying points located aro
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CABLE RUN C.S.A. OF EACH CABLE % POWER LOSS % POWER LOSS (m) CONDUCTOR (mm) RESISTANCE W W INTO 8W W LOAD INTO 4W W LOAD 10 2.5 0.14 1.7 3.5 4.0 0.09 1.1 2.2 6.0 0.06 0.73 1.5 25 2.5 0.35 4.3 8.6 4.0 0.22 2.7 5.4 6.0 0.14 1.8 3.6 50 2.5 0.69 8.6 17.0 4.0 0.43 5.4 11.0 6.0 0.29 3.6 7.2 100 2.5 1.38 17.0 35.0 4.0 0.86 11.0 22.0 6.0 0.58 7.2 14.0 4. Polarity Checking It is most important to check the polarity of the wiring. A simple method of doing this without a pulse based p
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6. Crossovers For optimal performance the B225 has been designed to operate with Tannoy Install or Transportable series, e.g. i12/T12, i15 and T300, where overall system control is achieved by utilising the TDX2 system controller. The TDX2 has been factory preset to provide the recommended cross-over points, delays and overall system balance. Please refer to the TDX2 manual for operation. Alternatively, Tannoy TX1, TX2 and TX3 system controllers can be used. If you intend using an alterna
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9. Positioning When a bass loudspeaker is used in an environment with boundary surfaces, its placement affects its frequency response. When such effects are properly understood, they can be used to great effect in producing the desired sound quality without the aid of additional amplification. Consider Figure 9a in the diagram below, here we see a loudspeaker in free field or anechoic conditions. We measure its sound pressure level at a distance D, and refer to this as our reference level
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10. Dimensions 9
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11. Technical Specifications Frequency response (1) +/- 3dB 50Hz - 2kHz Recommended Amplifier Power 400 - 800 Watt / 8Ω Power Handling Average(2) Programme Peak (10ms) 400 Watt 800 Watt 1600 Watt Sensitivity (1) 2.83 volt @ 1m 95dB 98dB (half space) Maximum SPL (3) Average Peak @ 1m 121dB 127dB Impedance Nominal 8Ω Minimum 7Ω Distortion nd rd 0.1 Full Power 2 Harmonic 3 Harmonic 100 Hz 1.37% 0.57% 250 Hz 0.63% 0.451
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12. B225 Service Parts & Accessories Part Number Description 7900 0597 Driver Kit Type 3814 7900 0601 Recone Kit Type 3814 8001 2190 EBS10 Eye Bolt Set M10 8000 0727 TDX2 Digital loudspeaker management system 60-250V - UK 8000 0728 TDX2 Digital loudspeaker management system 60-250V - EUR 8000 0729 TDX2 Digital loudspeaker management system 60-250V - USA 13. Warranty No maintenance of the B225 loudspeaker is necessary. All Tannoy professional loudspeaker products are covered by a 5-yea
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Tannoy Limited, Professional Division, Coatbridge, Strathclyde, ML5 4TF, Scotland. Tel: +44 (0) 1236 420199 Fax +44 (0) 1236 428230 e-mail: prosales@tannoy.com Website: www.tannoy.com Tannoy / TGI North America Inc., 335 Gage Avenue, Suite 1, Kitchener, Ontario, Canada N2M 5E1. Tel: (519) 745-1158 Fax: (519) 745-2364 e-mail: inquiries@tgina.com Website: www.tannoy.com Tannoy Nederland b.v., Anthonetta Kuijlstra
