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Musical Instruments > Studio Recording Equipment > B001032HV6
  1. Rolls RA2100b 2-Channel 100 Watts/RMS Channel @ 4 Ohms Power Amplifier
    Image(s) provided for illustrative purposes and may differ from the actual product
  2. Rolls RA2100b 2-Channel 100 Watts/RMS Channel @ 4 Ohms Power Amplifier

    [B001032HV6]
    Delivery: 10-20 Working Days
    Customer Ratings (4 reviews)
    Price R9052.00

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Product Description

  • The RA2100b FET Stereo 100W / Ch. 25V Mono - 70V Stereo Amp
  • 100 Watts RMS per output (4 Ohm) - 85 Watts RMS per output (8 Ohm) - 200 Watts RMS into 70 Volt (8 Ohm)
  • 1/4" and RCA inputs
  • Fault Protected Output Stage
Additional Information

The Rolls RA2100b is a stereo 100W/channel RMS power amplifier in a standard 2 rack space format. It is intended for professional audio and distributed musical applications. The unit features 100 Watts per channel RMS into four ohms, 85 Watts per channel into eight ohms, and for the contractor - 70 Volts / eight ohms. The unit also features MOSFET drivers in a voltage and current gain circuit and a one-second input turn-on delay. The RA2100b will drive 25 Volt speaker lines directly from each channel, or 70 Volt lines bridged. The 2100b is convection cooled. Adequate ventilation room for the heat sink fins on the rear panel must be provided for.

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Specifications

Country
USA
Binding
Electronics
Brand
rolls
Color
Light Gray
EAN
0675889210019
Label
rolls
Manufacturer
rolls
Model
RA2100B
MPN
RA2100B
NumberOfItems
1
PartNumber
RA2100B
PublicationDate
2014-11-24
Publisher
rolls
Size
none
Studio
rolls
Warranty
90 days
Most Helpful Customer Reviews

I am a commercial and pro audio contractor and I've used these amplifiers in a number of installations (mostly in restaurants). For driving 70v lines they produce tremendous output and great bang for the buck. They are quite a bargain, even compared to a number of Chinese manufactured amplifiers.

I read a bad review on this amplifier here on Amazon, and I suspect that the user did not connect this device properly. The amplifier must be operated in bridged mono mode in order to drive a 70v line. If it is to be used as a stereo 70v amplifier, auto-transformers must be connected between the outputs and the 70v speakers. The performance of the amplifier is only as good as the integrity of the system design and the proper interface into the system.

It's a very nice plus that they're made in the US. They are nothing fancy, but they are definitely reliable. And it feels good to support factory workers in Utah.
This amp replaced the same model amp that had been in use in our church for so many years that no one can remember when it was purchased. We think it may have been 1980 when complete sound system was replaced.
Using this as a 70 volt amplifier in a restaurant. It works great! We have about 175 watts of volume controls connected to it and it's great! Very happy.
Please Note

The authorised South African distributor of this product is under no obligation to honour the manufacture's guarantees/warranties or to provide after-sales service.

Please note that this item is imported from the USA, and is designed to be used in the USA. In addition, if the unit is powered it will come with a US plug and an adapter/transformer may be required. Please click here for more information on power requirements, or check with us if you are unsure or need any assistance!

Please also note that certain items cannot be imported, these include Alcohol, Animals, Batteries, Flammable Materials, Currency, Food, Furs, Chemicals, Explosives, Medications, Plants, Seeds, Supplements, Pressurized Cans, Tactical Equipment, Vitamins, Weaponry and Weaponry Accessories. In these cases, the item and information is displayed for reference purposes only. If you are not sure if we are permitted to bring an item, please send us an e-mail with a link to the item to confirm.

Please also ensure that you are ordering the correct item for your particular application as returns to the USA are costly. Product reviews are also provided for most of our items, which can give you a good idea for possible things to look out for and the quality of the item. By clicking Add to Cart, you are confirming that the item is correct and you accept the conditions listed here.