B & C Speaker Drivers
B & C is represented in the Load Forge catalog by 138 speaker drivers, covering 4" to 21". Resonance (Fs) spans 30–150 Hz and total Q (Qts) 0.16–0.95, so the range covers both compact sealed alignments and large vented subwoofers. Every entry below links to its Thiele/Small parameters and calculated sealed and bass-reflex box designs.
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Drivers
138
Diameter
4"–21"
Fs Range
30–150 Hz
Qts Range
0.16–0.95
Price Range
51.19–1167.84
Filter B & C Speaker Drivers by diameter
All B & C Speaker Drivers — parameters & designs
| Model | Size | Fs | Qts | Vas | Price |
|---|---|---|---|---|---|
| BAC4CXN36AB | 4" | 99 Hz | 0.72 | 1.9 L | 109.01 GBP |
| BAC4CXN36BB | 4" | 99 Hz | 0.72 | 1.9 L | 97.40 GBP |
| BAC4MCX36AB | 4" | 150 Hz | 0.91 | 0.8 L | 109.01 GBP |
| BAC4NDS34A | 4" | 79 Hz | 0.24 | 2.6 L | 51.19 GBP |
| BAC5CXN44A | 5" | 70 Hz | 0.45 | 4.3 L | 154.12 GBP |
| BAC5FCX44A | 5" | 61 Hz | 0.25 | 7 L | 135.64 GBP |
| BAC5FCX44B | 5" | 61 Hz | 0.25 | 7 L | 135.64 GBP |
| BAC6MDN44A | 6" | 140 Hz | 0.4 | 2.7 L | 97.37 GBP |
| BAC6PEV13A | 6" | 126 Hz | 0.36 | 6 L | 86.02 GBP |
| BAC6PS38A | 6" | 75 Hz | 0.3 | 8 L | 89.50 GBP |
| BAC6PS44A | 6" | 71 Hz | 0.33 | 7 L | 86.02 GBP |
| BAC6CXN36AA | 6.5" | 90 Hz | 0.95 | 7.5 L | 120.28 GBP |
| BAC6MBX44A | 6.5" | 90 Hz | 0.27 | 5.8 L | 126.84 GBP |
| BAC6MBX44B | 6.5" | 90 Hz | 0.27 | 5.8 L | 126.84 GBP |
| BAC6MD38A | 6.5" | 130 Hz | 0.44 | 3 L | 79.00 GBP |
| BAC6NDL38A | 6.5" | 72 Hz | 0.42 | 7 L | 99.41 GBP |
| BAC6XT13A | 6.5" | 98 Hz | 0.6 | 7 L | 77.54 GBP |
| BAC8CL51A | 8" | 69 Hz | 0.41 | 12.5 L | 93.40 GBP |
| BAC8CX21A | 8" | 74 Hz | 0.36 | 15 L | 170.89 GBP |
| BAC8CX21XLF | 8" | 53 Hz | 0.274 | 19.1 L | 161.42 GBP |
| BAC8CXN51A | 8" | 68 Hz | 0.27 | 17 L | 247.16 GBP |
| BAC8FCX51A | 8" | 69 Hz | 0.34 | 16 L | 201.67 GBP |
| BAC8FG51A | 8" | 49 Hz | 0.32 | 20 L | 108.84 GBP |
| BAC8FW51A | 8" | 74 Hz | 0.21 | 12 L | 121.10 GBP |
| BAC8NDL51A | 8" | 66 Hz | 0.37 | 14 L | 112.94 GBP |
| BAC8NDL64A | 8" | 80 Hz | 0.25 | 10 L | 133.06 GBP |
| BAC8PS21A | 8" | 73 Hz | 0.33 | 14 L | 104.76 GBP |
| BAC8PS21AM | 8" | 73 Hz | 0.33 | 14 L | 104.76 GBP |
| BAC10CL51A | 10" | 58 Hz | 0.38 | 36 L | 95.98 GBP |
| BAC10CL64A | 10" | 63 Hz | 0.31 | 22.2 L | 120.18 GBP |
| BAC10CLA64A | 10" | 74 Hz | 0.42 | 18.5 L | 123.67 GBP |
| BAC10CXN64A | 10" | 68 Hz | 0.31 | 23 L | 303.77 GBP |
| BAC10FL64A | 10" | 63 Hz | 0.32 | 23 L | 121.69 GBP |
| BAC10HPL51A | 10" | 55 Hz | 0.36 | 50 L | 97.49 GBP |
| BAC10HPL64A | 10" | 61 Hz | 0.31 | 32 L | 126.52 GBP |
| BAC10HPL64AM | 10" | 61 Hz | 0.31 | 32 L | 126.30 GBP |
| BAC10MD26A | 10" | 76 Hz | 0.21 | 20 L | 153.43 GBP |
| BAC10NDL64A | 10" | 56 Hz | 0.26 | 31 L | 153.72 GBP |
| BAC10NDL88A | 10" | 61 Hz | 0.25 | 18.4 L | 221.47 GBP |
| BAC10NW64A | 10" | 50 Hz | 0.26 | 27.5 L | 145.84 GBP |
| BAC10PLB76A | 10" | 52 Hz | 0.19 | 31 L | 189.02 GBP |
| BAC10PLB76AM | 10" | 52 Hz | 0.19 | 31 L | 189.02 GBP |
| BAC12BG100A | 12" | 39 Hz | 0.33 | 41 L | 312.41 GBP |
| BAC12BG100AM | 12" | 39 Hz | 0.33 | 41 L | 312.41 GBP |
| BAC12BG100B | 12" | 39 Hz | 0.33 | 41 L | 312.41 GBP |
| BAC12CLA76A | 12" | 52 Hz | 0.25 | 56 L | 163.66 GBP |
| BAC12FG100AM | 12" | 34 Hz | 0.36 | 49 L | 249.41 GBP |
| BAC12FW88A | 12" | 53 Hz | 0.33 | 45.7 L | 175.43 GBP |
| BAC12HCX76A | 12" | 42 Hz | 0.19 | 120 L | 432.25 GBP |
| BAC12NDL76A | 12" | 50 Hz | 0.2 | 73 L | 189.97 GBP |
| BAC12NDL76AM | 12" | 50 Hz | 0.2 | 73 L | 188.74 GBP |
| BAC12NDL76WPA | 12" | 50 Hz | 0.2 | 73 L | 189.97 GBP |
| BAC12NDL88A | 12" | 51 Hz | 0.27 | 52 L | 240.12 GBP |
| BAC12NDL88AM | 12" | 51 Hz | 0.27 | 52 L | 238.90 GBP |
| BAC12NDL88C | 12" | 48 Hz | 0.24 | 57 L | 240.12 GBP |
| BAC12NW100A | 12" | 42 Hz | 0.2 | 44 L | 287.60 GBP |
| BAC12NW100AM | 12" | 42 Hz | 0.2 | 44 L | 287.60 GBP |
| BAC12NW100C | 12" | 42 Hz | 0.2 | 44 L | 287.60 GBP |
| BAC12NW76A | 12" | 40 Hz | 0.16 | 76 L | 224.62 GBP |
| BAC12NW76AM | 12" | 40 Hz | 0.16 | 76 L | 224.62 GBP |
| BAC12PLB76A | 12" | 50 Hz | 0.23 | 75 L | 160.74 GBP |
| BAC12PLB76AM | 12" | 50 Hz | 0.23 | 75 L | 160.74 GBP |
| BAC12PS100A | 12" | 44 Hz | 0.27 | 47 L | 211.49 GBP |
| BAC12PS100AM | 12" | 44 Hz | 0.27 | 47 L | 211.49 GBP |
| BAC12TBX100A | 12" | 42 Hz | 0.26 | 37.5 L | 228.98 GBP |
| BAC12TBX100AM | 12" | 42 Hz | 0.26 | 37.5 L | 228.98 GBP |
| BAC320KCA | 12.6" | 82 Hz | 0.5 | 53 L | 109.99 GBP |
| BAC320KCB | 12.6" | 82 Hz | 0.59 | 52 L | 228.98 GBP |
| BAC14CXN88 | 14" | 46 Hz | 0.26 | 100 L | 552.32 GBP |
| BAC14NDL76 | 14" | 41 Hz | 0.3 | 123 L | 205.86 GBP |
| BAC14NDL76AM | 14" | 41 Hz | 0.3 | 123 L | 205.86 GBP |
| BAC14NDL88 | 14" | 45 Hz | 0.3 | 102 L | 263.02 GBP |
| BAC14NDL88M | 14" | 45 Hz | 0.3 | 102 L | 263.02 GBP |
| BACN14NA100 | 14" | 43 Hz | 0.23 | 99.5 L | 309.96 GBP |
| BAC15CL76A | 15" | 42 Hz | 0.33 | 135 L | 172.78 GBP |
| BAC15CL76C | 15" | 42 Hz | 0.33 | 135 L | 172.78 GBP |
| BAC15CLA76A | 15" | 40 Hz | 0.3 | 176 L | 182.98 GBP |
| BAC15CXN76A | 15" | 38 Hz | 0.28 | 246 L | 446.08 GBP |
| BAC15CXN88A | 15" | 46 Hz | 0.28 | 137 L | 559.63 GBP |
| BAC15DS100A | 15" | 39 Hz | 0.26 | 76 L | 380.56 GBP |
| BAC15DS115A | 15" | 33 Hz | 0.17 | 94 L | 459.59 GBP |
| BAC15DS115AM | 15" | 33 Hz | 0.17 | 94 L | 459.59 GBP |
| BAC15DS115C | 15" | 34 Hz | 0.16 | 83 L | 459.59 GBP |
| BAC15FW76A | 15" | 40 Hz | 0.21 | 138 L | 195.53 GBP |
| BAC15FW88A | 15" | 49 Hz | 0.43 | 103.7 L | 196.06 GBP |
| BAC15HPL76A | 15" | 39 Hz | 0.29 | 194 L | 190.00 GBP |
| BAC15NA100AM | 15" | 47 Hz | 0.28 | 88 L | 344.28 GBP |
| BAC15NBX100A | 15" | 36 Hz | 0.29 | 125 L | 295.57 GBP |
| BAC15NDL76A | 15" | 37 Hz | 0.22 | 195 L | 212.44 GBP |
| BAC15NDL76AM | 15" | 37 Hz | 0.22 | 195 L | 212.44 GBP |
| BAC15NDL76C | 15" | 37 Hz | 0.22 | 195 L | 212.44 GBP |
| BAC15NDL88A | 15" | 45 Hz | 0.34 | 126 L | 253.06 GBP |
| BAC15NDL88AM | 15" | 45 Hz | 0.34 | 126 L | 253.06 GBP |
| BAC15NDL88C | 15" | 41 Hz | 0.28 | 154 L | 253.06 GBP |
| BAC15NW100A | 15" | 33 Hz | 0.22 | 139 L | 298.20 GBP |
| BAC15NW100AM | 15" | 33 Hz | 0.22 | 139 L | 298.20 GBP |
| BAC15NW76A | 15" | 42 Hz | 0.22 | 130 L | 256.78 GBP |
| BAC15NW76AM | 15" | 42 Hz | 0.22 | 130 L | 256.78 GBP |
| BAC15PLB76A | 15" | 42 Hz | 0.25 | 164 L | 207.78 GBP |
| BAC15PLB76AM | 15" | 42 Hz | 0.25 | 164 L | 207.78 GBP |
| BAC15PS100A | 15" | 33 Hz | 0.31 | 152 L | 220.04 GBP |
| BAC15PS100AM | 15" | 33 Hz | 0.31 | 152 L | 225.56 GBP |
| BAC15PS76A | 15" | 38 Hz | 0.26 | 164 L | 207.78 GBP |
| BAC15PS76AM | 15" | 38 Hz | 0.26 | 164 L | 207.78 GBP |
| BAC15PS76CM | 15" | 38 Hz | 0.26 | 164 L | 207.78 GBP |
| BAC15PZB100A | 15" | 39 Hz | 0.29 | 110 L | 252.98 GBP |
| BAC15PZB100AM | 15" | 39 Hz | 0.29 | 110 L | 252.98 GBP |
| BAC15TBW100A | 15" | 39 Hz | 0.31 | 96 L | 271.67 GBP |
| BAC15TBW100AM | 15" | 39 Hz | 0.31 | 96 L | 271.67 GBP |
| BAC15TBX100A | 15" | 35 Hz | 0.28 | 113 L | 250.34 GBP |
| BAC15TBX100AM | 15" | 35 Hz | 0.28 | 113 L | 250.34 GBP |
| BAC15TBX100C | 15" | 34 Hz | 0.27 | 129.6 L | 250.34 GBP |
| BAC18DS100A | 18" | 34 Hz | 0.29 | 155 L | 416.98 GBP |
| BAC18HTX100A | 18" | 44 Hz | 0.32 | 173 L | 925.08 GBP |
| BAC18NBX100A | 18" | 35 Hz | 0.38 | 198 L | 309.11 GBP |
| BAC18NBX100AM | 18" | 35 Hz | 0.38 | 198 L | 309.11 GBP |
| BAC18NBX100C | 18" | 35 Hz | 0.37 | 192 L | 309.11 GBP |
| BAC18NW100A | 18" | 31 Hz | 0.26 | 252 L | 316.99 GBP |
| BAC18NW100AM | 18" | 31 Hz | 0.26 | 252 L | 316.99 GBP |
| BAC18PS100A | 18" | 30 Hz | 0.39 | 245 L | 240.56 GBP |
| BAC18PS100AM | 18" | 30 Hz | 0.39 | 245 L | 240.56 GBP |
| BAC18PZB100A | 18" | 30 Hz | 0.24 | 297 L | 275.56 GBP |
| BAC18PZW100A | 18" | 37 Hz | 0.36 | 186 L | 260.98 GBP |
| BAC18RBX100A | 18" | 35 Hz | 0.34 | 220 L | 248.40 GBP |
| BAC18SW100A | 18" | 35 Hz | 0.38 | 180 L | 400.36 GBP |
| BAC18SW100AM | 18" | 35 Hz | 0.38 | 180 L | 400.36 GBP |
| BAC18SW115A | 18" | 32 Hz | 0.3 | 187 L | 491.06 GBP |
| BAC18SW115AM | 18" | 32 Hz | 0.3 | 187 L | 491.06 GBP |
| BAC18TBW100A | 18" | 35 Hz | 0.39 | 175 L | 308.23 GBP |
| BAC18TBW100AM | 18" | 35 Hz | 0.39 | 175 L | 308.23 GBP |
| BAC18TBW100CM | 18" | 33 Hz | 0.32 | 181.5 L | 309.65 GBP |
| BAC18TBX100A | 18" | 34 Hz | 0.35 | 212 L | 263.89 GBP |
| 21DS115_2 | 21" | 34 Hz | 0.27 | 204 L | 570.07 GBP |
| BAC21DS115C | 21" | 32 Hz | 0.21 | 219 L | 571.09 GBP |
| BAC21IPAL | 21" | 37 Hz | 0.21 | 155 L | 1167.84 GBP |
| BAC21SW115C | 21" | 33 Hz | 0.36 | 278 L | 555.34 GBP |
| BAC21SW152A | 21" | 32 Hz | 0.3 | 200 L | 664.57 GBP |
| BAC21SW152C | 21" | 32 Hz | 0.3 | 200 L | 666.56 GBP |
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