Instruction/ maintenance manual of the product SE240 Hafler
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OWNER’S MANUAL HAFLER SE240 POWER AMPLIFIER A Division of Rockford Corporation 613 South Rockford Drive Tempe, Arizona 85281 602 - 967 - 3565 HAFLER SE240.
SPECIFICATIONS Power Rating: Less than 0.025% total harmonic distortion at any power level up to 120 watts continuous average power per channel into 8 ohms at any frequency between 20 Hz and 20 kHz with both channels driven, Continuous Power Output: Into 4 ohms, below -04% THD, 20 Hz-20 kHz, per channel: 175 watts IM Distortion (IHF): Less than 0.
Input Impedance: 47,000 ohms. Input Sensitivity: 1.2 volts rms for 120 watts into 8 ohms. Slew rate: 10 kHz, 60 volts peak to peak square wave: 45 v/us Damping Factor: 300 to 1 kHz into 8 ohms.
INTRODUCTION The Hafler SE-240 is a two channel audio amplifier which has been engineered to meet high performance and reliability standards while maintaining affordability. The amplifier employs a sonically proven circuit topology driving MOSFET output devices.
the Hafler transformers are designed to minimize this field, certain cartridges are more sensitive than others, and require separation from the amplifier. Check at a compara- tively high volume setting, swinging the tone arm through its arc. Usually a few inches of added space is all that is needed.
running them parallel to power wiring to reduce the likelihood of hum pickup. OUTPUT. The wires which connect the speakers to the amplifier should be of sufficient size to preserve the SE- 240’s high damping factor. Standard #18 gauge lamp cord (zip cord) is satisfactory for up to 15 feet if your speakers are of 8 ohms or higher impedance.
Conventional Stereo Connections It is best to make all connections with the SE-240 switched off. Each of the stereo speakers connects to one horizon- tal pair of red and black outputs, as identified left or right on back of the SE-240. The input signals connect to the corresponding input jacks, and the Mono/Stereo switch should be set to Stereo.
pedance is less than 8 ohms, the SE-240 can deliver more power into the lower impedance. Sound reproduction accuracy is largely a measure of your success in satisfying an illusion of the original.
Fuses The SE-240 is supplied with a 10 ampere Slo-Blo AC line fuse and four power supply fuses. If one of these fails, it is usually indicative of a fault which will require professional service.
An important point after buying a device Hafler SE240 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Hafler SE240 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Hafler SE240 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Hafler SE240 you will learn all the available features of the product, as well as information on its operation. The information that you get Hafler SE240 will certainly help you make a decision on the purchase.
If you already are a holder of Hafler SE240, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Hafler SE240.
However, one of the most important roles played by the user manual is to help in solving problems with Hafler SE240. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Hafler SE240 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
