Description
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Follow Us
Login / Signup
Follow Us
Overview
The MA3 is a three-channel amplifier designed to operate reliably in commercial environments. This amplifier was specifically designed for use in:
The MA3 is an ideal amplifier with Rane’s paging, foreground music, and background music products, the Rane CP52S, CP64S, CP66 and DA 26S.
The MA3 uses a conventional linear power supply with a toroidal transformer. This configuration minimizes the emissions associated with switching supplies and noisier transformer designs. The power supply features independent secondary supplies for each channel, minimizing load regulation interaction and crosstalk.
The combination of a solid, conservative power supply and forced-air cooling allows the MA 3 to simultaneously deliver 40 watts of continuous average power into 8Ω and 60 watts into 4Ω.
SPiKe®* dynamic protection circuitry completely safeguards each channel against over-voltage, under-voltage, overloads, transients from inductive loads, thermal runaway and instantaneous temperature peaks. Biasing is not allowed to occur when an under-voltage condition exists, reducing turn on and turn off transients.
Fast-response limiters allow the MA3 to tolerate up to 20 dB of overdrive into 8 and 4Ω loads while holding THD below 1%. This means no loss of speech intelligibility or harsh clipping. This feature greatly increases the dynamic range of the system without external limiters.
Peak-responding, load-adaptive meters accurately indicate the remaining headroom. The meters are helpful in setting system levels and indicating signal compression.
Balanced inputs with Euroblock connectors are provided. Euroblock output connectors accept up to 12 gauge wire. Rear panel Level controls allow amplifier sensitivity adjustment. Internally selectable 80 Hz highpass filters for each channel offer protection against over excursion of small bookshelf speakers and saturation of distribution transformers at low frequencies. These filters are shipped in the “off” position from the factory.
Built to be driven hard
The MA3 Amplifier drives all three channels at the continuous average rated power, indefinitely. It is specifically designed to operate in demanding commercial applications. Very low emissions allow the amplifier to operate in close proximity to signal processing equipment without causing excessive interference. Other Rane equipment may operate next to the MA3 in a rack. The high efficiency “heat tunnel” design allows the amplifier to process severely compressed signals reliably even when installed in a rack with elevated ambient temperatures. Forced-air cooling keeps heat away from other equipment.
You won't hear the other Zones
The MA3 is designed to deliver foreground music, background music and paging signals to three different Zones without annoying crosstalk. A quiet office, for example, with a paging signal only, will not hear foreground music playing in the lounge. The high capacity linear power supply incorporates three independent secondary supplies with independent bridge rectifiers and filters. The result is exceptionally good crosstalk figures even with multiple channels driving full power into 4Ω loads.
No bad “spikes”
The MA3 is designed to operate without interruption of signal with as little as 85 VAC available (120 VAC unit). Even if the Amplifier is operating at full power, the signal will not breakup as the AC line voltage drops to 85 VAC. If the AC line drops lower than 85 VAC the signal mutes without “spikes.” Once AC power is restored, the signal restarts quickly without “spikes” or signal breakup.
The good “SPiKe”
The power amplifiers in the MA3 are protected with National Semiconductors’ proprietary SPiKe* protection circuitry. SPiKe protection offers a level of protection not available in conventional amplifiers. It has the ability to instantaneously monitor the temperature of the power device die, yielding a level of reliability not achievable with discrete designs.
It’s OK to light the 0 dB Headroom indicator a lo
The high-performance limiter used in the MA3 means all the available power can be delivered to the load and not simply held in reserve to avoid overload. There is no need to buy up to four times the required power just to prevent occasional system overload. The MA3 can compress a signal with 9 dB of dynamic power range down to a signal with 3 dB of dynamic power without loss of speech intelligibility or excessive distortion. With typical amplifiers, when 40 watts is needed to achieve a required average SPL of 80 dB, the contractor must buy an amplifier rated at no less than 160 watts just to maintain 6 dB of headroom. The figure below illustrates the performance of the MA3 limiter.
Features
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at sales@sweetheartdeals.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at sales@sweetheartdeals.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.
Free shipping within the continental United States
Additional charges may apply when shipping to AK, HI and Puerto Rico. Most orders ship within 1-3 business days.
Free 30-day Returns
Not satisfied with your purchase? Return within 30 days for a full refund. We pay the shipping back!
Superior Support
Have a question about your purchase or need technical assistance? Call us at 1-888-507-1180 and we will assist!
Secure Payments
All transactions are certified Level 1 PCI DSS compliant, which means peace of mind at checkout!