Soundtube MA501T Low Voltage Amplifier (Black)
Soundtube MA501T Low Voltage Amplifier (Black) is backordered and will ship as soon as it is back in stock.
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Soundtube MA501T Low Voltage Amplifier (Black)
SoundTube MA501T Low Voltage Amplifier (Black)
The SoundTube MA501T is a compact, low-voltage mono power amplifier purpose-built for commercial distributed audio applications. Delivering 50 watts of clean output power into 25V, 70V, or 100V speaker lines, the MA501T is the ideal single-channel drive solution for SoundTube pendant and surface-mount speakers in restaurants, retail environments, hospitality lobbies, and corporate facilities. Its small footprint — just 1.25" H x 3.9" W x 7.9" D — means it can be concealed behind a display, tucked inside a wall enclosure, or mounted in a rack using the optional AC-SA502-RMA plate.
All controls are located on the rear panel, with a recessed gain control on the front panel that deters unauthorized tampering — a practical feature in public-facing commercial installations. A 12V trigger input enables convenient auto-on/off integration with control systems, zone processors, or schedulers. The MA501T is fan-cooled and includes overload, short-circuit, and thermal protection, delivering years of reliable operation even in always-on commercial deployments.
The amplifier accepts balanced and unbalanced inputs via Euroblock connectors, with 10KΩ balanced and 20KΩ unbalanced input impedances. The universal switching power supply (100–240 VAC) makes the MA501T suitable for international installations without requiring voltage conversion. Certifications include CCC, CE, RoHS, UL60065, ETL-C/US, and FCC for broad compliance across North American and global projects.
Key Features
- 50W Mono Output — Powers a zone of SoundTube or compatible 70V/100V speakers cleanly from a single compact chassis.
- 25V / 70V / 100V Compatible — Works with standard distributed audio architectures without additional transformers or adapters.
- 12V Trigger Input — Enables seamless auto-on/off integration with Crestron, AMX, Savant, and other control systems.
- Recessed Front-Panel Gain Control — Prevents tampering in public spaces while keeping level adjustment accessible to authorized technicians.
- Fan-Cooled with Full Protection — Overload, short-circuit, and thermal protection circuits ensure long-term reliability in always-on commercial environments.
- Balanced & Unbalanced Inputs — Euroblock connectivity accepts both balanced (10KΩ) and unbalanced (20KΩ) sources for flexible system integration.
- Universal Power Supply — 100–240 VAC input makes the MA501T suitable for international projects without voltage adapters.
- Ultra-Compact Form Factor — 1.25" tall chassis mounts in tight equipment spaces or on optional rack plate (AC-SA502-RMA).
Typical Applications
- Single-zone background music in restaurants, cafes, and hotel lobbies
- Retail store audio powered by SoundTube pendant or ceiling speakers
- Conference room or boardroom fill speaker amplification
- Hospitality suite and guest room audio systems
- Compact amplification for digital signage audio zones
- Museum exhibit audio with motion-triggered 12V zone control
Technical Specifications
| Specification | Value |
|---|---|
| Output Power | 50W mono |
| Output Voltages | 25V / 70V / 100V |
| Voltage Gain | 20 dB |
| Frequency Response (±3 dB) | 30 Hz – 20 kHz @ 1W, <0.2% THD |
| Input Impedance (Balanced) | 10K Ω |
| Input Impedance (Unbalanced) | 20K Ω |
| Output Type | Euroblock |
| Power Requirements | 100–240 VAC (with approved power supply) |
| Height | 1.25 in / 31.75 mm |
| Width | 3.9 in / 99.06 mm |
| Depth | 7.9 in / 200.66 mm |
| Shipping Weight | 3.2 lbs / 1.45 kg |
| Certifications | CCC, CE, RoHS, UL60065, ETL-C/US, FCC |
| Color | Black |
| UPC | 748252171870 |
Frequently Asked Questions
Q: Can the MA501T drive 8-ohm speakers directly?
A: The MA501T is designed for 25V, 70V, and 100V distributed audio output. For 8-ohm low-impedance speaker loads, consider the SoundTube SA502 2-channel Class D amplifier available at creationnetworks.net.
Q: What control systems work with the 12V trigger?
A: The 12V trigger input is compatible with virtually all major control platforms including Crestron, AMX, Savant, Control4, and simple timer relays.
Q: Is the MA501T rack-mountable?
A: Yes, using the optional AC-SA502-RMA rack mount adapter plate, sold separately. The amplifier itself is 1.25" tall.
Q: How many speakers can the MA501T drive?
A: That depends on the tap settings and total wattage of the connected speakers. At 70V, the amplifier delivers 50W total; speaker taps should not exceed this total.
Q: Is this amplifier suitable for outdoor speaker zones?
A: The MA501T itself should be housed indoors or in a weatherproof enclosure when driving outdoor speakers. It is not rated for direct outdoor exposure.
Q: Where can I order the MA501T with system design support?
A: Contact Creation Networks for project quotes, system design assistance, and authorized SoundTube dealer pricing.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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