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User Manual for Rolls Bellari PA550 Preamplifier with RIAA Phono Preamp & Headphone Amp Click to enlarge the picture
Contents of the user manual for the Rolls Bellari PA550 Preamplifier with RIAA
- Product category: Phono Preamplifiers Rolls
- Brand: Rolls
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Rolls Phono Preamplifiers
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User manual for the Rolls Bellari PA550 Preamplifier with RIAA contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Rolls product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Rolls user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Rolls product will considerably shorten its lifespan!
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Product description The Rolls Bellari PA550 is a preamp for phonographs and line-level sources, as well as a headphone amplifier for your favorite pair of headphones. It sports two sets of RCA inputs and a 3.5mm input for computers, smartphones, and other appropriate sources. With the onboard switch, you can choose among the inputs and route them to the RCA stereo outputs or the 3.5mm headphone out.
Note that plugging into the headphone jack will mute the RCA output circuit, leaving you with a dedicated headphone amplifier. A ground post is on the rear of the device for your turntable's ground connection; this feature can help you minimize the noise commonly associated with ground loops.
The PA550 features an equalizer based on the industry standard RIAA curve. With the bass and treble knobs, you can tailor the lows and highs of the signal to better suit your preferences. A large volume knob is also on hand for adjusting the level of the output. A power supply is included. UPC: 675889005509 In the Box Rolls Bellari PA550 Preamplifier with RIAA Phono Preamp & Headphone Amp 15V Power Supply Limited 1-Year Warranty Table of Contents
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Technical parametersRolls PA550 Specs | Connections | 1 x 3.5 mm TRS stereo input, phone type
4 x RCA inputs (stereo pairs)
2 x RCA outputs (stereo pair)
1 x 3.5 mm headphone output, phone type | | Controls | Volume knob
Bass knob
Treble knob
Input select switch | | Gain | Line: 16.4 dB gain at 1 kHz
Phone: 56.6 dB gain at 1 kHz | | Impedance | Line Input: 22 kOhms
Phone Input: 47 kOhms
Headphone Output: 8 to 600 Ohms
RCA Output: 47 Ohms | | Frequency Response | 3 Hz to 36 kHz | | Equalization | 14 Hz to 23 kHz (RIAA ±1 dB) | | THD | 0.005% at 1 kHz | | Signal to Noise Ratio | >94 dB unweighted | | Indicator | 1 LED for power | | Power | 15 VDC | | Dimensions (W x D x H) | 5.5 x 3.5 x 1.3" / 14.0 x 8.9 x 3.2 cm | | Weight | 0.8 lb / 0.4 kg | | | | Package Weight | 1.48 lb | | Box Dimensions (LxWxH) | 9.9 x 7.4 x 4.4" |
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