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Description
Williams AV FM T55C D FM+ C Assistive Listening System with DanteFM+ C with Dante is the first transmitter of its kind to offer an FM broadcast and Wi Fi audio broadcast from a single input source. Whether using the FM+ C for assistive listening, language interpretation, or audio description, this dual broadcast technology gives users the option of listening to real time audio stream on their smartphone or tablet using the free WaveCAST receiver app (iOS and Android) or use an available FM receiver from the venue.
FM+ C with Dante is the first transmitter of its kind to offer an FM broadcast and Wi-Fi audio broadcast from a single input source. Whether using the FM+ C for assistive listening, language interpretation, or audio description, this “dual broadcast” technology gives users the option of listening to real-time audio stream on their smartphone or tablet using the free WaveCAST receiver app (iOS and Android) or use an available FM receiver from the venue.
The FM+ C has support for Telnet commands via an Ethernet port enabling AV professionals to control and monitor the FM+ C using third-party room control systems.
Specifications
| Dimensions | 8.45″ W x 8.25″ D x 1.72″H (21.5 cm x 21 cm x 4.4 cm) | |||
| Weight | Transmitter: 3.2 lbs (1.45 kg) | |||
| Color | Black | |||
| Rack Mount | Standard 19” Rack, one EIA rack space high, 1/2 space wide 1–2 units can be mounted in a single rack space with optional RPK 005 (single) or RPK 006 (double) Rack Mount Kits |
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| Power Supply | Desktop Style Transformer (TFP 062); Input: 100-240 VAC, 50/60 Hz. IEC Line Cord; Output: 24 VDC, 750 mA, 18W. 2.5mm ID center positive barrel connector | |||
| Power ON Indicator | Push On/Push Off latching power button with backlight. Green backlight indicates power ON, backlight off indicates power OFF. | |||
| Temperature Range | Operating: +32° F to +122° F (0° C to 50° C); Storage: -4° F to +158° F (-20° C to 70° C) | |||
| User Interface | 1. 3.12” High Resolution OLED display with selections via buttons. 2. Hosted Web page. 3. Telnet commands over ethernet (see our WaveCAST and FM+ Programmers Guide” for available commands and protocol). | |||
| Dante | (1x) RJ-45 jack. Only available on FM T55C D | |||
| Ethernet | RJ-45 on back of unit supports CAT 5e cable lengths up to 328 feet (100 meters); 10/100 Base-T IEEE 802.3 compliant, unique MAC address. RJ-45 jack used for web page and streaming audio out. An external Router/DHCP Server is required to stream audio to receiving devices. | |||
| RF Section | ||||
| Operating Frequencies | 72.1-75.9 MHz , 17 wideband channels (selectable) | |||
| Frequency Accuracy | ± 2 ppm stability, 0-50˚ C | |||
| Deviation | ± 75 kHz maximum | |||
| Pre-Emphasis | 75 microsec | |||
| RF Field Strength | Does not exceed 80 mV/m at 3 m | |||
| Compatible Antennas | ANT 005, ANT 021, ANT 024, ANT 025, ANT 028, ANT 029, ANT 034
Refer to Williams AV’s Antenna Selection Install Guide for FCC-compliant antennas for this product. |
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| Transmission Range | Up to 1000 ft (304 m) with ANT 005 coaxial antenna mounted on rear chassis F-connector | |||
| RF Outputs | (1x) #10-32 stud connector in center of unit (pcb mounted) (1x) F-connector on rear chassis |
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| RF Transmit (RF) Power Indicator | 1 OLED On Air Indicator with 4 states indicating power level Off, Low, Medium, and Full Power. | |||
| RF Time Out (sleep mode) | 30 min. duration, 4 hr. duration, or Always On; selected via web page. When audio drops below -18dB, the selected duration begins, and when it expires the unit stops transmitting and goes into a low-power (“sleep”) mode. Any button press or resumption of audio above -18dB “awakens” the unit and it begins transmitting again. | |||
| Audio Section | ||||
| Audio Inputs | (1x) Combination 3-pin XLR, 1/4” (TRS) jack for balanced or unbalanced line level, or balanced or unbalanced microphone with selectable phantom power. Optional RJ-45 Dante Input (“D” models only). | |||
| Audio Processor Functions | DSP based; Compression: 1:1, 1.5:1 or 2:1; High-pass and Low-pass Filter Frequency control, Music, Voice, and Hearing Assistance Audio Presets | |||
| Frequency Response | 31-16000 Hz, ±3 dB (re: 1 kHz) (“Music” Audio Preset) | |||
| Signal-to-Noise Ratio | 64 dB (typical) Transmitted RF @ 1kHz | |||
| Total Harmonic Distortion | Less than 0.25% @ 1 kHz (RF output) | |||
| Common Mode Rejection | Greater than 57 dB @ 1 kHz, Mic or Line mode | |||
| Audio Input Gain Adjust | Adjustable from +24dB to -60 dB, in 1dB steps from front screen or web page | |||
| Phantom Power | 14.4 VDC applied through 2.2 kOhms resistors to analog combo jack: Pin 2 and Pin 3 on XLR jack, or tip and ring on 1/4″ TRS jack | |||
| Audio Level Display | Front screen bar graph display, each segment representing 3dB. It ranges from -18 (1 segment lit) to +12dB (10 segments lit). Over-range warning is indicated by ‘OLVD’ and flashing empty bar. | |||
| Headphone Output | 1/4″ TRS stereo jack, mono signal, 7.8 mW total power with 33 Ω. | |||
| Dante Output | (1x) RJ-45 jack | |||
| Input Level (Bal or Unbal) (at Audio Input Gain = 0dB) |
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| Approvals | FCC, RoHS3, WEEE, Industry Canada | |||
| Warranty | 2-year warranty against component failure and manufacturing defects. See the Full Warranty statement on the website for details.* Stresses above these ratings may cause permanent damage or degrade reliability. | |||
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 4
cute, one toy came broken
Super cute toys my dog loves small squeaky toys like these, one of the toys sadly came broken as it doesn’t squeak but can’t complain too much since you get a couple of them for a good price.
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Reviewed in the United States on March 5, 2026
★★★★★ 5
Great toys for small dogs
Bought for two cocker spaniels. They both love the toys. Haven’t figured out how to make the squeakers squeak yet but are having fun tossing them and chewing on them. Also appreciate the bag to keep the toys in after play time is over,
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Great lil toys
Durable, safe and small enough for my lil guy.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Cute toys for tiny pups
These are much better than I expected at this price. My new puppy is a 2 pound Papillon and it’s not easy finding toys small enough. These are a good size for him and he is enjoying the squeakers and crinkle paper. It’s nice to have a bunch of them so when he starts nipping at my fingers or other things he isn’t allowed to chew, I always have a toy handy to divert his attention.
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Reviewed in the United States on January 26, 2026
★★★★★ 5
Wonderful
Set name: 8 Pack Plush Squeaky Toys
My dog has a very small mouth and she loves these these because she can actually play with them. They are sturdy, soft, squeaker works well, and a good variety of shapes and colors. Would purchase again and recommend.
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Reviewed in the United States on May 23, 2026