The AtlasIED AT35 35-Watt Commercial Speaker Volume Control provides reliable, individual volume adjustment for speakers connected to 70.7V or 25V distributed audio systems. Designed for paging, background music, and commercial sound installations, this transformer-based attenuator allows users to adjust speaker volume locally without changing the amplifier's master volume setting.
Ideal for restaurants, offices, retail stores, schools, and other commercial facilities, the AT35 offers convenient wall-mounted control for speaker circuits rated up to 35 watts.
Unlike conventional low-impedance speaker volume controls, the AtlasIED AT35 is specifically designed for constant-voltage distributed audio systems. Its high-quality auto transformer provides dependable performance with low insertion loss, helping maintain audio quality while adjusting listening levels.
The AT35 features 10 make-before-break attenuation steps plus a positive off position, allowing smooth, controlled volume changes. Silver-plated switch contacts help minimize unwanted switching noise and provide reliable operation over time.
A removable terminal block simplifies installation and service, while the included stainless steel single-gang wall plate, clearly marked dial scale, and skirted black knob provide a professional appearance.
AtlasIED AT35 Key Features
- 35-Watt Power Rating: Controls speaker loads up to 35 watts in compatible distributed audio systems.
- 70.7V and 25V Compatibility: Designed for commercial constant-voltage speaker systems.
- 10 Attenuation Steps Plus Off: Provides convenient adjustment of speaker volume.
- 3 dB Attenuation Steps: Offers predictable volume changes throughout the adjustment range.
- 27 dB Total Attenuation: Allows significant reduction of speaker output before the off position.
- Make-Before-Break Switching: Maintains circuit continuity during switching for dependable operation.
- Silver-Plated Contacts: Help minimize switching noise and maintain reliable electrical contact.
- Low Insertion Loss: Rated at 0.6 dB for efficient audio performance.
- Removable Terminal Block: Simplifies wiring and installation.
- Stainless Steel Wall Plate: Provides a durable, professional finish.
- Single-Gang Installation: Fits most standard single-gang electrical outlet boxes.
Individual Volume Control for Commercial Speaker Systems
The AtlasIED AT35 is useful in buildings where multiple rooms or areas share a common 70V or 25V amplifier.
Instead of adjusting the volume of every speaker connected to the amplifier, the AT35 allows users to reduce or turn off the volume of the speakers connected through that control.
For example, a restaurant may use the AT35 to lower background music in a private dining room while maintaining normal volume levels in other areas.
Similarly, offices, schools, and retail environments can provide convenient local speaker volume adjustments without requiring access to the central audio equipment.
10-Step Attenuation with Positive Off
The AT35 uses an auto transformer with 10 make-before-break attenuation steps and a positive off position.
Each attenuation step provides a nominal 3 dB reduction, with a total attenuation range of 27 dB.
The make-before-break design helps maintain a continuous speaker circuit during volume adjustments, while silver-plated contacts provide dependable switching performance.
The result is a practical wall-mounted volume control for everyday commercial audio operation.
AtlasIED AT35 Technical Specifications
| Specification | Details |
|---|
| Manufacturer | AtlasIED |
| Model | AT35 |
| Product Type | Commercial speaker volume attenuator |
| System Voltage | 25V / 70.7V |
| Power Rating | 35 watts |
| Attenuation Steps | 10 plus positive off |
| Attenuation per Step | 3 dB nominal |
| Total Attenuation | 27 dB |
| Insertion Loss | 0.6 dB |
| Switching | Make-before-break |
| Contacts | Silver-plated |
| Connections | Removable terminal block |
| Plate Size | 1 gang |
| Plate Material | Stainless steel |
| Height | 4.5 in. (11.43 cm) |
| Width | 2.75 in. (6.99 cm) |
| Depth | 2.125 in. (5.40 cm) |
| Shipping Weight | 1 lb (0.45 kg) |
| Safety Listings | UL 813, UL 2043 |
| Manufacturer Warranty | 60 months |
Recommended Applications
- Restaurants and Hospitality: Adjust background music levels in individual dining or service areas.
- Retail Stores: Provide local speaker volume control in sales areas and departments.
- Offices and Conference Rooms: Adjust distributed audio levels independently.
- Schools and Educational Facilities: Control audio levels in classrooms and common areas.
- Commercial Buildings: Add convenient wall-mounted volume control to compatible paging and music systems.
- Houses of Worship: Adjust audio levels in auxiliary rooms and gathering spaces.
Installation and Compatibility Considerations
The AtlasIED AT35 is intended for 25V and 70.7V constant-voltage speaker systems.
The total connected speaker transformer tap load should not exceed the AT35's 35-watt rating. When selecting a volume control, installers should calculate the combined wattage of the speakers connected through the attenuator.
The AT35 is not intended for conventional 4-ohm or 8-ohm speaker circuits.
For systems requiring higher speaker wattage, consider an appropriately rated commercial attenuator.
Why Buy the AtlasIED AT35 from Audio Supply?
Audio Supply offers AtlasIED commercial audio equipment for paging and distributed sound installations. We can help you select the correct volume control based on your speaker wattage and system voltage.
Need a Higher-Wattage Volume Control?
For larger 25V or 70.7V speaker loads, consider the AtlasIED AT100 100-Watt Commercial Attenuator.
The AT100 provides similar wall-mounted volume adjustment with a higher power rating for compatible distributed speaker systems.
Contact Audio Supply for assistance selecting the correct attenuator for your installation.
