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Year-End Inventory
Our warehouse will be unavailable for shipping Wednesday - Friday, December 12 - 14 for our year-end inventory counts. This includes any products, parts orders, and repairs. Please place your orders accordingly.
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D-937SP Digital Input Module Discontinued
 Please note that TOA has discontinued the D-937SP Digital Input Module. This applies to the D-901 Modular Digital Mixer, the DP-K1 Modular Digital Signal Processor with Automatic Resonance Control, and the D-2000 Digital Mixing System. Quantities are very limited, please check with Customer Service for stock.
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Installation Profile
 TOA was awarded 5 Mexican Prison contracts with TOA reseller Electronics Industrial ZEN. This project was valued at over $2 million dollars located in the Mexican states of Durango, Guanajuato, Michoacan, Morelos, and Sonora. The Mexican government was in search of products that met their needs of being vandal-resistant, yet easily integrated with intercom activity. After reviewing TOA's N-8000 Intercom System and finding all specifications met their needs, contracts were signed. This on-going project has the potential for additions in 2013.
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Product Spotlight: DA Series - Less is More
 Sure there are lots of Class D (that's "D" for digital-more on that in a second) amplifies on the market, but the TOA DA Series-specifically, the DA-250F & FH, were among the earliest offerings in the commercial market and the first model with independent channels. Firstly, Class D technology has become renowned for his high energy efficiency (a real plus when're running several in 24/7 applications) and low thermal footprint. Most conventional amplifiers use much more current than is actually converted into usable power for driving speakers (as much as 100% more). Not only does this waste electricity and drive up operating costs, but the unused power is usually given off as heat. This makes the amp and its surrounding environment much hotter, requiring additional cooling (and consuming even more power), not to mention the extra rack space needed for air flow. Class D amplifiers get around this by "digitally" managing the current flow to the amplifier stage (it does not, in fact, convert the signal to "1s and 0s" and back to analog again as with most digital audio processors). The resulting efficiency reduces power consumption by about 30-40% and also greatly reduces the amount of heat generated by the amp (since less energy is wasted). Therefore, a Class D amplifier can produce more power in a significantly smaller and lighter weight package. In recent years, this has given rise several multi-channel amplifier models. The TOA DA Series offers two and four power channels per chassis, with between 250W and 550W per channel in 4/8 Ohm & 70V versions (In only 1U or 2U rack size). The TOA DA Series adds to this by giving each channel in the amplifier its own independent module and power supply. This greatly increases reliability, since if a single channel experiences a fault condition or fails, the others will continue to operate normally. This differs from most other amplifiers, where all channels operate from a single power supply. Another benefit of this, is that a single input signal fed to channel 1 can be split across all channels and independently controlled by each channel's front panel level control. Pairs of channels may also be operated in bridge mode for higher power requirements (such as a large subwoofer). The DA Series is a serious consideration when designing systems using "green" standards (such as LEEDS). The DA Series comes with TOAs 5 year audio warranty. For more information, visit our DA Series webpage by clicking here.
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Ads For The Month Of December
  During the month of December, TOA will be featuring solutions for HOW (Front of House magazine), the DP-K1 with Automatic Resonance Control (Sound and Video Contractor magazine), and the N-8000 Intercom System (Sound & Communications magazine) advertisements.
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Tech Tip: How to create a hard output limit on the 9000M2
By Josh Srago, CTS
I have had several people talk to me about wanting to be able to limit the output level of non-priority signals using the 9000M2 since the RS-485 remote controls (ZM-9012/ZM-9014) were introduced a few years ago. Unfortunately, there is no way to program a limit to how loud the output can be based on those controls, but there IS a way to set how loud the output can be.
Let's take a look at the signal flow of the 9000M2 for a minute:
 - There are 5 key gain stages between input and output (Input VOL, Input EQ, Crosspoint, Output VOL, Output EQ)
- Assuming that the Input VOL settings and both EQs are set correctly and we know we can't set a ceiling on the remotes controlling Output VOL, that leaves us with the Crosspoint.
- Under factory preset the crosspoint gain from Input to Output is always 0 dB (essentially a pass through allowing all signal to flow to the output).
So how do we use the crosspoint level control to set a hard limit on the 9000M2?
- When programming the unit, with no signal passing through the unit, bring your output gain to +10 dB (the maximum output level).
- Then using the front panel, find the input you want to work with first and turn the crosspoint of that input to the output you're sending it to all the way down (Minus Infinity).
- Again - this MUST be done on the front panel because the GUI software is not live control software.
- Once you have chosen your input/output crosspoint, apply the correct signal to that input and start to bring up the crosspoint gain on the front panel.
- Once you have reached the maximum desired level, then save your scene settings on the front panel.
- Repeat for the next input/output combination.
Why does this work? The ZM-9012 and ZM-9014 wall controllers can only be programmed to raise and lower the output volume. So by limiting the amount of signal going to the output, you can ensure that the end user will not be able to overload the speakers or amplifiers that come after the 9000M2 in the signal chain.
For more information about the 9000M2 and its versatility, please contact the Product Support Group at 800-733-4748 from 8 am to 8 pm EST.
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TOA Calendar
 TIES 2012 Education Technology Conference - Booth # 701 - Monday & Tuesday, December 10 & 11 - Register now
Offices closed Monday & Tuesday, December 24-25 in observance of the Christmas holiday.
Offices closed Monday, December 31 and Tuesday, January 1 in observance of the New Year holiday. |
