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Parasound ZoneMaster 2350 2.1 Channel Power Amplifier
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Parasound ZoneMaster 2350 2.1 Channel Power AmplifierParasound ZoneMaster 2350 2.1 Channel Power AmplifierParasound ZoneMaster 2350 2.1 Channel Power Amplifier

Parasound ZoneMaster 2350 2.1 Channel Power Amplifier

£1,249.17 Exc. VAT |  


Parasound ZoneMaster 2350 2.1 Channel Power Amplifier

Parasound has introduced the ZoneMaster 2350, a powerful and affordable 350-watt-per-channel Class D stereo power amplifier with a crossover for subwoofers. It is now available from Parasound dealers for premium audio and custom installation applications.

The Parasound ZoneMaster 2350 draws on the company's heritage of low-noise Class AB input stages and analogue bass management, combined with the highest quality Class D amplification to drive eight-ohm speakers to 350 watts per channel, and deliver up to 600 watts per channel into four ohms. The 2350's high current design and extensive heat-sinking enable it to easily drive two-ohm loads in demanding applications.

"While this is probably my 38th new power amplifier introduction, I am especially excited about the ZoneMaster 2350 as something new and different for Parasound," said Richard Schram, the company's president and founder. "It has the high horsepower our industry has come to expect from good Class D, and by marrying it with our industry-leading analogue input stage and unique connectivity options, we've created a remarkably rugged, maximum-fidelity amp that can play at the red-line all day. With bass management and versatile installation features, it is also a really practical choice for commercial systems."

In addition to providing high power and audiophile-grade sound quality to stereo speakers, the Parasound ZoneMaster 2350 includes a package of unique installer-friendly features that have proven popular on several of Parasound's other ZoneMaster amplifiers. These include a two-channel analog 80Hz, 24dB/octave low-pass crossover for driving one or more in-wall passive subwoofers without the need for external crossovers, separate line-level and speaker-level inputs, A & B speakers, a mono/stereo mode switch, a 30Hz/80Hz high-pass filter to improve performance with small speakers, stereo loop outputs, a dedicated mono line output, and audio-sensing or 12-volt trigger auto turn-on options.


  • 350 watts x 2 @ 8 Ω
  • 600 watts x 2 @ 4 Ω
  • 2 Ω stable for driving multiple speaker pairs
  • Two pairs of speaker outputs with A/B buttons
  • Lockout switch on rear panel to disable A/B buttons
  • High pass filter, switchable for 30Hz or 80Hz
  • Automatic on/off by 12V trigger w/ looping output
  • Automatic on/off by audio signal
  • Speaker level input enables integration with systems lacking preamp output jacks
  • Parasound designed class AB input stage w/ premium Class D power stage
  • Subwoofer mode for driving multiple in-wall subs without the need for an external crossover
  • Mono mode combines L and R for single speaker applications
  • Mono full range preamp output
  • Subwoofer 80Hz, 24dB/oct. low pass preamp output
  • Looping left and right output jacks
  • Left and right input level controls
  • Efficient, low heat design
  • Short circuit and overload protection
  • 0.5 watt standby power consumption meets EU and Energy Star requirements
  • 2U rack mounting hardware is included in the box


Power Output
RMS, Both Channels Driven (20 Hz – 20 kHz) 
350 watts x 2 @ 8 Ω 
600 watts x 2 @ 4 Ω or 2 Ω

Minimum Speaker Impedance (Output A+B) 
Stereo or Mono Mode: 2 Ω 
Subwoofer Mode: 4 Ω 
Note: Operation at these minimum impedances might require additional ventilation.

Frequency Response 
10 Hz – 70 kHz, +0/-3 dB 
20 Hz – 20 kHz, +0/-0.8 dB

Total Harmonic Distortion 
< 0.05 % at typical listening levels 
< 0.9 % at full power

Inter-channel Crosstalk 
70 dB at 20 kHz

Input Sensitivity: 
2 Volts = Full output (350 Watts @ 8 Ω) 
Total gain = 29 dB (Level controls set to Maximum)

S/N Ratio 
> 100 dB, input shorted, unweighted 
> 114 dB, input shorted, IHF A-weighted

High and Low Pass Crossovers 
Sub Mode and Sub out jack: 80 Hz, 24 dB per octave 
High Pass Filter: 30 Hz or 80 Hz, 12 dB per octave

DC Trigger Requirements 
+9 Vdc to +12 Vdc, 5 mA

Audio Trigger Requirements 
2 mV audio signal (8-15 minutes turn off delay)

AC Power Requirement 
1500 Watts maximum 
100 Watts typical (music playing, typical listening level) 
30 Watts idle (no music playing) 
0.5 Watts in standby 
110-240 VAC 50/60 Hz

Width: 17.25" (438 mm) 
Depth: 14.5" (368 mm) 
Depth: 16.25" (412 mm) with cables connected 
Height, with feet: 4.25" (108 mm) 
Height, without feet: 3.5" (89 mm), 2U

Net: 15 lbs. (6.8 kg) 
Shipping: 22.25 lbs. (10.1 kg)

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