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on a proprietary six-spoke molded-glass reinforced ABS frame that includes six screen-covered 5-mm × 15-mm voice coil cooling vents below the spider-mounting shelf located between the frame spokes. The cone assembly TSL Model LTD Model Factory Sample 1 Sample 2 Sample 1 Sample 2 FS 93 Hz 93 Hz 89 Hz 91 Hz 98 Hz REVC (series) 5.7 5.71 5.7 5.71 5.73 Sd 0.0038 0.0038 0.0038 0.0038 0.0038 QMS 6.5 6.77 6.66 7.03 6.59 QES 0.62 0.6 0.77 0.74 0.66 QTS 0.56 0.55 0.69 0.67 0.67 VAS 1.67 ltr 1.65 ltr 1.81 ltr 1.74 ltr 1.31 ltr SPL 2.83 V 85.2 dB 85.3 dB 84.1 dB 84.3 dB 87 dB XMAX 1.25 mm 1.25 mm 1.25 mm 1.25 mm 1.25 mm Table 1: Celestion AN3510 fullrange comparison data Figure 2: The LEAP 5 layout screen shows the Celestion AN3510 in a nine-driver line source array. consists of a black anodized aluminum cone with a 27-mm diameter aluminum dust cap. Suspending the cone and dust cap are a low-loss nitrile butadiene rubber (NBR) surround and a 46-mm diameter treated cloth flat spider. The AN3510 has a 25-mm diameter two-layer voice coil wound with copper wire on a nonconducting polyimde former ending at a pair of aircraft-type terminals. Powering this structure is an overhung neodymium motor with a ventilated (42-mm vent holes) motor return cup for better heat transfer to the surrounding air. I used the LinearX LMS analyzer and VIBox to create voltage and admittance (current) curves with the driver clamped to a rigid test fixture in free-air at 0.3, 1, 3, and 6 V. Next, I post-processed the eight 550-point stepped sine wave sweeps (four current and four voltage sweeps) for each AN3510 sample. Then I divided the voltage curves by the current curves (admittance curves) to produce the impedance curves, phase-generated by the LMS calculation method. I imported the results, along with the accompanying voltage curves, to the LEAP 5 Enclosure Shop software. Since most Thiele-Small (T-S) data provided by OEM manufacturers is produced using either a standard transducer model or the LEAP 4 TSL model, I also used the 1 V free-air curves to create a LEAP 4 TSL model. I selected the complete data set, the multiple voltage impedance curves for the LTD model, and the 1 V impedance curve for the TSL model from the LEAP 5's transducer derivation menu and created the parameters for the computer box SPL vs Freq 115 dBSPL 110 105 T1-1828S 100 95 90 23.4mm 85 80 module 75 1.Total solution for sound enthusiast 70 65 10 Hz 20 50 100 200 500 1K 2K 5K 10K 20K Time vs Freq 8m Sec 6m 154mm Figure 3: Celestion AN3510 computer box simulations (black solid = sealed single driver at 2.83 V; blue dash = sealed nine-driver array at 2.83 V; black solid = sealed single driver at 3.5 V; blue dash = sealed nine driver at 15 V 2.Combine driver, passive radiator, cabinetas one 3.Slim,tiny,low fo, the highest performance 4.Good for multimedia soundbar,portable speaker 5.Available for different combination 6.Only need mounting 6. stand 4m 2m 0 10 Hz 20 50 100 200 500 Figure 4: Group delay curves for the 2.83 V curves in Figure 3 1K www.tb-speaker.com info@tb-speaker.com SEPTEMBER 2013 15