Parasound NewClassic 2125 User manual

Introducing the THX Ultra2 certifi ed Model 2125
home theater and stereo power amplifi er, an outstanding member of our NewClassic
line of high end home theater products. Each of this cool-running power amplifi er’s
two channels can deliver 125 watts into 8 ohms, 200 watts into 4 ohms, 200 watts into
2 ohms, and 400 watts when bridged to mono into 4 or 8 ohms. This exceptionally
rugged and versatile power amplifi er is equally capable of driving high performance
home theater speakers, or long chains of in-wall and ceiling speakers. The Model
2125 is a perfect complement to our fi ve channel Model 5125, and they can be
used in combination for a 7.1-channel home theater system that gives you stunning
sound and excitement.
Parasound has a long history of dedication to superlative overall quality. The Model
2125’s quality of sound, quality of performance and quality of construction will bring
you listening pleasure for many years to come. Parasound quality is matched with
our legendary reliability. When you purchase the Model 2125 from an Authorized
Parasound Dealer or Authorized Reseller, it is protected by Parasound’s exclusive
10 year parts, 5 year labor warranty.
Model 2125
Two Channel Power Amplifi er
2 x 125 watts rms into 8 ohms
2 x 200 watts rms into 4 ohms
2 x 200 watts rms into 2 ohms
400 watts rms bridged mono into 4 or 8 ohms
Cool-running, rack mountable

The Model 2125 is a Class AB amplifi er designed for effi cient, low heat operation.
Its fully discrete circuitry is powered by a huge toroid transformer, and is capable of
delivering 35 amps peak current per channel.
It features a switchable 20 Hz or 40 Hz, 18 dB/octave high pass fi lter that can be
activated to minimize wasted bass energy when driving multiple small speakers or to
defeat the negative impedance effects of auto-former wall-mounted volume controls.
There is also a impedance selector switch for very low impedance speaker chains.
For integration with processing and control equipment, it features both a DC trigger
input with looping output and adjustable sensitivity audio signal sensing for automatic
on/off control.
A ground lift switch is included on the rear panel, as are gold plated
RCA inputs, and A/B speaker terminals with individual on-off and heavy-duty 24 K
gold plated fi ve-way speaker terminals for each channel.
The Model 2125 includes DC Servo and relay protection circuits, and there are front
panel indicators for high temperature, standby, and status of each channel. It occupies
two rack spaces when mounted with the optional RMK22 rack-mount kit.
Model 2125
Two Channel Power Amplifi er
Specifi cations:
•
THX Ultra2 certifi ed
•
125 watts rms per channel into 8
Ω
, both channels driven
•
200 watts rms per channel into 4
Ω
, both channels driven
•
200 watts rms per channel into 2
Ω
, both channels driven
•
400 watts rms bridged into 8
Ω
or 4
Ω
mono
•
35 amps peak current per channel
•
Impedance selector switch for 2
Ω
operation
•
Bridging switch for stereo or mono operation
•
A/B speaker terminals with individual on/off
•
18dB/octave high pass fi lter, switchable 20Hz or 40Hz
•
Fully discrete circuitry with toroid transformer
•
Effi cient, low heat design
•
DC Servo and relay protection circuits
•
Automatic on/off by DC trigger with looping outputs
•
Automatic on/off by audio signal with adjustable sensitivity
•
Gold-plated RCA input jacks, loop output jacks
•
Heavy duty 24k gold-plated 5-way speaker terminals
•
Rear mounted gain controls; ground lift switch
•
115/230v selector on rear panel
•
Standby, channel status, high temperature indicators
•
2u chassis; RMK22 rack mount kit available
•
(W x D x H): 17.25” x 16” x 4.25” / 3.5” without feet
Parasound Products, Inc. 950 Battery Street, San Francisco, CA 94111 Ph: 415-397-7100 / Fax: [phone] / www.parasound.com