HELVIA MURA 2 Series Volume Attenuator
UNPACKING
UNPACKINGThank you for purchasing your MURA 2 Series Volume Control. Carefully unpack the carton and check the contents to ensure that all parts are present and in good conditions:
- 1x MURA 2 Volume Control
- 1x Front Cover (white)
- 1x In-Wall Plastic Box
- 2x Viti di fissaggio
- This User manual
FEATURES AND SIZE 
The MURA 2 Serie in-wall Volume Controllers offers a range of volume attenuators for 70V and 100V audio systems and are designed to be recessed in 82x82x-48mm wall boxes (supplied). They allow control of the volume with, respectively, 4 positions + off for MURA 205, and 11 positions + off for MURA 210/230/260. The max. nominal powers range from 2.5W to 30W in case of 70V lines; and 5W to 60W for 100V lines.
Each position attenuates the overall level from 5dB to 10dB, depending on the model. MURA
Connections
MURA 205
From left:
- SP = 70-100V Speaker Output
- N = 70-100V Line Input
- R = 70-100V Line negative pole
MURA 210/230/260
- COM = 70-100V Axiliary line negative pole
- HOT = 70-100V Axiliary line positive pole
- COM = 70-100V Main line negative pole
- 100V = 70-100V Main line positive pole
- SPK- = 70-100V Speaker out negative pole
- SPK + = 70-100V Speaker out positive pole
- 24V = Contacts for 24V relays command
Wiring Diagrams
SPECIFICATIONS
| MURA 205 | MURA 210 | MURA 230 | MURA 260 | |
| Nominal Power @ 100V | 5W | 10W | 30W | 60W |
| Nominal Power @ 70V | 2.5W | 5W | 15W | 30W |
| Control | 4 Positions + Off | 11 Positions + Off | ||
| Step Attenuation | 10dB | 5dB | ||
| Total Attenuation | 40dB | 55dB | ||
| Input Line | 70-100V | |||
| Emergency Line (Hot) | / | 70-100V | ||
| Emewrgency Control | / | 24V | ||
| In-Wall Mount Box | 80 x 80 x 48 mm (included) | |||
| Front Cover (included) | White | |||
| Size (WxDxH) | 82 x 30 (max) x 82 mm | 82 x 43 (max) x 82 mm | ||
| Net Weight | 80g | 160g | 170g | 180g |
| Packing Size (WxDxH) | 87 x 45 x 87 mm | 94 x 65 x 86 mm | 94 x 86 x 75 mm | |
| Gross Weight | 110g | 190g | 200g | 210g |
The product complies with 2004/108/EC Directive (Elec-tromagnetic Compatibility)
The product complies with 2006/95/EC Directive (Low Voltage)
WARRANTY AND SERVICE
All HELVIA® products are covered by warranty accord-ing to European regulations (2 years in the case of purchase by private person – B2C; 1 year in the case of purchase by company – B2B). The warranty is valid from the date of purchase by the end user (private individual or company), indicated in the purchase doc-ument (receipt in the case of private person; invoice in the case of company). The following cases / compo-nents are not covered by the above warranty:
- All accessories supplied with the product;
- Improper use;
- Failure due to wear and tear;
Any unauthorized modification of the product by the user or third parties. HELVIA must meet the warranty obligations due to any non-compliant materials or manufacturing defects, by remedying free of charge at HELVIA’s discretion by either repairing or replacing specific parts or the entire equipment.
WARNING
READ CAREFULLY – only for EU and EEA (Norway, Iceland and Liechtenstein). This symbol indicates that the product must not be disposed of with household waste, according to the WEEE directive (2202/96/EC and subsequent amendments) and national legislation.
The product must be delivered to a designated waste collection center (e.g. on an authorized one-for-one basis when you buy a new similar product, or to an authorized collection site for recycling waste electrical and electronic equipment).
For more information about where you can drop off your waste equipment for recycling, please contact your local city office, waste authority, approved WEEE scheme or your household waste disposal service. helviasystems.com
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