Parasound Essential Guidelines for the 2125 Amplifier: Unpacking and Placement Tips

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Unpacking Your Model 2125 v.2 & Placement Guidelines

Unpacking Your Model 2125 v.2

Carefully remove your Model 2125 v.2 from its shipping carton and locate the enclosed accessories:

AC power cord

Two 12V DC trigger wires with mono plugs, one with 3.5 mm (1/8‖) mini plugs, one with a 2.5mm sub-mini plug and a 3.5mm mini plug

While you are unpacking your Model 2125 v.2, inspect it thoroughly for possible shipping damage and tell your Parasound dealer immediately if you find any evidence of shipping damage. This would be a good time to make a copy of your sales receipt to store with the Model 2125 v.2’s original packing.

Note: Please save and store both the inner and outer cartons and, most especially, the foam packing inserts to protect the Model 2125 v.2 if you have to move it or ship it. You may wish to flatten the cardboard cartons to save room in storage after cutting the taped seams on the bottom flaps.

Placement Guidelines

The Model 2125 v.2 will be easier to use and will last longer if you follow these simple guidelines:

Place the Model 2125 v.2 on a surface that will adequately support its substantial weight.

Use input and output cables that are long enough to leave some slack; that will enable you to pull the Model 2125 v.2 out of a cabinet to check or to change connections without inadvertently disconnecting cables.

The Model 2125 v.2 should never be placed in a completely enclosed cabinet

Place your Model 2125 v.2 where you can route input and output signal cables as far as possible from any AC cords.

Where signal cables must cross AC cords they should do so only at a 90° right angle.

Ventilation Requirements

Always position the Model 2125 v.2 horizontally.

The Model 2125 v.2 should never be stacked immediately on top of another power amplifier.

Do not install the Model 2125 v.2 in an unventilated equipment cabinet or compartment. Pockets of stagnant hot air can build up even in a cabinet with an open front and back.

Rack Mounting Your Parasound Model 2125 v.2

The Model 2125 v.2 front panel occupies two rack spaces in a standard 19‖ equipment rack.

For rack mounting, you’ll need to use the Parasound RMK22 rack mounting kit (purchased separately). We recommend that you use the 8 insulated shoulder washers with the four mounting bolts which are included with the RMK22. Position these washers on both sides so they ―sandwich‖ the front panel before the mounting bolts are screwed into the rack rail. This will eliminate metal-to-metal contact between the Model 2125 v.2 chassis, the equipment rack, and the other components in the rack.

Note: Tighten each bolt just enough to keep the unit secure in the rack to avoid deforming the shoulder washers. Eliminating metal-to-metal contact reduces the likelihood of creating a ground loop that might introduce hum into your system.

A single standard rack space is 1-3⁄4" (44mm) high in a 19" wide equipment rack. This measurement standard was developed by the EIA (Electronic Industries Association) so manufacturers of electronic components and equipment racks could build products in standardized heights that would fit in a uniform space. Please call your Parasound dealer or Parasound Technical Services if you need additional advice about rack mounting the Model 2125 v.2.

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Contents Model 2125 Important Safety Instructions Table of Contents Parasound Staff Keeping Records for Future Reference Important Warranty informationThank You for Choosing Parasound Ventilation Requirements Placement GuidelinesUnpacking Your Model 2125 Rear Panel Connections and Controls AC Mains VoltageBridged Mono Switch Front Panel Speaker Selector Lockout SwitchHigh Pass Filter Switch Right and L Left Level KnobsSetting Up the Model 2125 v.2 for Bridged Mono Operation Speaker Wire Length and Gauge thicknessBridged Mono Operation Speaker TerminalsTwo 8 Ohm Speakers Single 8 Ohm SpeakerSingle 4 or 6 Ohm Speaker Manual Position Turn On Options SwitchAudio Position Automatic on/off 12V Position Automatic on/off5mm and 2.5mm trigger jacks Volt Input Jacks12V Loop Out Jack Front Panel Operation Amp is Overheating or the Hi-Temp Indicator is Illuminated Problems and RemediesUnit Will Not Turn On No Sound From the Speakers but amp turns onAre You Having Difficulty? Repair or ServiceSpecifications Parasound Products, Inc McKinnon Ave, San Francisco, CA

2125 V.2 specifications

The Parasound 2125 V.2 amplifier stands out as a premier choice for audiophiles seeking high-quality sound reproduction combined with solid build quality. It is well-regarded for its ability to deliver powerful, clear audio while maintaining the signature warmth that is often associated with high-end audio equipment. With a sleek design and robust features, the 2125 V.2 is an excellent addition to any home theater or audio system.

One of the primary features of the Parasound 2125 V.2 is its high-power output. The amplifier is capable of delivering 125 watts per channel into 8 ohms and 185 watts into 4 ohms, allowing it to drive a wide range of speakers with ease. This power output supports dynamic sound reproduction, crucial for producing the subtleties in both music and movie audio tracks.

The amplifier employs a linear power supply with a toroidal transformer, which is known for its efficiency and low noise. This design choice enhances the overall performance by reducing electromagnetic interference and ensuring a clean power delivery to the amplification stages. The use of high-quality components throughout the amplifier, such as durable capacitors and low-noise transistors, further contributes to its reliability and auditory fidelity.

In terms of technology, the Parasound 2125 V.2 incorporates a class AB amplifier topology. This hybrid design offers the benefits of both class A and class B amplifiers, delivering robust performance with minimal distortion. This results in a smooth, warm sound signature that is pleasing for extended listening sessions. The amplifier also features a low-frequency filter for optimized performance when used in home theater setups, allowing it to handle various audio formats without compromising on quality.

Additionally, the Parasound 2125 V.2 is equipped with a variety of connections, including balanced XLR inputs as well as unbalanced RCA inputs. This flexibility makes it easy to integrate the amplifier into different audio systems while ensuring compatibility with a wide range of equipment. For added versatility, the amplifier includes a trigger input, enabling remote operation when paired with compatible devices.

The build quality of the 2125 V.2 is another standout characteristic. Housed in a rigid metal chassis, the amplifier not only looks elegant but also protects its sensitive internal components. The front panel features a straightforward design with easy access to volume control and indicator lights that provide real-time feedback on the amplifier’s status.

In conclusion, the Parasound 2125 V.2 amplifier offers a potent blend of power, sound quality, and flexibility, making it an excellent choice for music lovers and cinephiles alike. Its well-thought-out design and engineering reflect Parasound's commitment to delivering exceptional audio equipment that can satisfy even the most discerning listeners.