This tiny speaker comes with a properly proportioned speaker enclosure and provides great results for space-constrained models! Dimensions: 16 x 12 x 11.3mm(D)Frequency Response: 300Hz – 20kHzPower: .7 Watts (Nominal) 1 Watt (Peak)Impedance: 8 Ohms Note: When using this speaker with a decoder that has a two watt amplifier, it must be wired in series with another 1 watt speaker.

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Suitable for many HO and larger models. Dimensions: 28 x 4.5mm(D)Frequency Response: 320 Hz – 18kHzPower: 1 Watt (Nominal) 2 Watts (Peak)Impedance: 8 Ohms

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This small oval speaker is ideal for narrow hood diesels. Dimensions: 35 x 16 x 8mm(D)Frequency Response: 250Hz – 13kHzPower: 1 Watt (Nominal) 2 Watts (Peak)Impedance: 8 Ohms

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This small speaker is perfect for narrow hood diesels and anywhere else where space is at a premium. Dimensions: 25 x 14 x 5.2mm(D)Frequency Response: 300Hz – 20kHzPeak Power: 1.5 WattsImpedance: 8 Ohms

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SoundTraxx’s tiniest speaker comes with a properly proportioned speaker enclosure and provides remarkable volume for tiny models! Dimensions: 13 x 9 x 9.4mm(D)Frequency Response: 100Hz – 10kHzPower: 40mW (Nominal) 75mW (Peak)Impedance: 32 Ohms Note: When using this speaker with a decoder that has a 1-2 Watt, 8 Ohm  amplifier; it must be wired in parallel with another 32 Ohm speaker to create a 16 Ohm load for the amplifier.

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This speaker is perfect for enhancing the low bass sounds that are found in most diesel decoders. It is well worth the extra effort! Dimensions: 23 x 23 x 10.2mm(D)Frequency Response: 275Hz – 20kHzPower: 2 Watts (Nominal) 4 Watts (Peak)Impedance: 8 Ohms

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This speaker is great for boosting the low frequencies in most diesel and “big” steam sounds. Dimensions: 27 x 14.3mm(D)Frequency Response: 350Hz – 20kHzPeak Power: 2 WattsImpedance: 8 Ohms

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This is one of our largest speakers for use with the TSU-4400 in O-scale or larger models. Dimensions: 50 x 90 x37.5mm(D)Frequency Response: 230Hz - 20kHzPower: 2 Watts (Nominal) 5 Watts (Peak)Impedance: 8 Ohms

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This speaker is the Mini Cube 3. We just love the amazing sound that you can get out of this tiny speaker. The Mini Cube 3 is only 12 x 5.5 x 3mm, but the sound it produces will blow your mind!  George has shown this speaker off in YouTube videos with the N-Scale TSU-KN1 decoder.  Dimensions: 12.5 x 5.5 x 3mm(D)Frequency Response: 800Hz - 20kHzPower: 0.3 Watts (Nominal) 0.5 Watts (Peak)Impedance: 8 Ohms Note: For best performance, seal the speaker to the baffle with a light RTV-style adhesive.  To avoid damaging the 0.5 watt Mini Cube 3 speaker, they are best used in pairs and wired in series. 

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This is SoundTraxx’s largest Megabass speaker which provides the best low frequency bass sounds for your steam, diesel, and electric models. Dimensions: 28 x 28 x 11.2mm(D)Frequency Response: 200Hz – 20kHzPeak Power: 4 WattsImpedance: 8 Ohms

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The LokSound by ESU Rectangular Speaker with Enclosure is ideal for use in model locomotives as a replacement for a 20 x 40mm speaker. With the help of the built-in passive radiator in conjunction with two rectangular speakers, the module achieves a significantly improved bass response and achieves a considerable sound pressure even at the high and mid-range. The module is particularly suitable for diesel or steam locomotives, where emphasis is placed on contemporary bass reproduction. This speaker includes a built-in enclosure to enhance its output and is rated at 4 Ohms. This rectangular speaker measures 7/8 x 1-21/32 x 5/16" 22 x 42 x 8mm. More Information Item # 50345 Brand ESU Scale Multi WARNING: This product can expose you to a chemical, which is known to the State of California to cause Cancer and Reproductive Harm - For more information go to www.P65Warnings.ca.gov

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This tiny, high-output speaker is suitable for N-scale and larger models. Dimensions: 20 x 3.2mm(D)Frequency Response: 475Hz – 9kHzPeak Power: 1 WattImpedance: 8 Ohms

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