Parasound
Parasound ZoneMaster 2350
Best high-power amplifier for versatile multi-room audio distribution systems.
The Parasound ZoneMaster 2350 is a versatile two-channel amplifier built for robust audio distribution. It delivers a powerful 350 watts per channel into 8 ohms and can drive multiple speaker pairs with its 2-ohm stability. Featuring switchable speaker outputs with A/B buttons, a high-pass filter, and automatic on/off via 12V trigger or audio signal, it offers flexible integration. The amplifier includes a speaker-level input for systems without preamp outputs and a unique subwoofer mode for simplified multi-subwoofer setups. Its efficient, low-heat design ensures reliable performance and meets energy-saving standards.
$999.00
More ZoneMaster Options
Owner Satisfaction
4.7
/ 5
Category Rank
421
/ 1684
#421 in Power Amplifiers
Price vs Category Average
-88%
Below average
Power Output – RMS, Both Channels Driven
35028600242
/ watts x @ Ω, watts x @ Ω or Ω
Who it's for
- Audiophiles driving power-hungry speakers in large listening rooms
- Installers placing equipment in compact, heat-sensitive cabinetry
- Professional integrators building complex, rack-mounted audio systems
Who should skip it
- Budget-conscious buyers planning entry-level multi-zone audio
- Users with shallow cabinets or limited rack depth
- Listeners needing direct digital connectivity or built-in streaming
Performance breakdown
Power Output
Massive headroom ensures effortless dynamics even with demanding speaker loads.
Impedance Stability
Rock-solid 2-ohm stability handles complex multi-speaker configurations with ease.
Integration Flexibility
Versatile inputs and trigger options make system setup remarkably straightforward.
Thermal Efficiency
Hybrid design keeps the unit cool during extended high-output sessions.
Signal Clarity
High signal-to-noise ratio delivers a clean, transparent audio foundation.
Rack Compatibility
Standard 2U chassis fits seamlessly into professional and custom installations.
Key Specs
Power Output – RMS, Both Channels Driven
350 watts x 2 @ 8 Ω, 600 watts x 2 @ 4 Ω or 2 Ω
Minimum Speaker Impedance
2 Ω (Stereo/Mono), 4 Ω (Subwoofer Mode)
Frequency Response
10 Hz – 70 kHz, +0/-3 dB
Total Harmonic Distortion
< 0.05 % at typical listening levels
S/N Ratio
> 114 dB, input shorted, IHF A-weighted
Dimensions
Width: 17.25" (438 mm), Depth: 14.5" (368 mm), Height: 3.5" (89 mm) (2U)
Weight
15 lbs. (6.8 kg)
AC Power Requirement
110-240 VAC 50/60 Hz
Features
- Drives multiple speaker pairs with 2 Ohm stability
- Switchable A/B speaker outputs with lockout
- Switchable 30Hz or 80Hz high-pass filter
- Automatic power on/off via 12V trigger or audio
- Speaker-level input for system flexibility
- Class AB input with Class D power stage
- Simplified multi-subwoofer setup with Subwoofer Mode
- Mono mode for single speaker applications
What customers say
The Parasound ZoneMaster 2350 earns high praise for blending custom installation reliability with audiophile sound. Users consistently highlight its immense power, noting its effortless control over demanding, low-impedance speakers and excellent dynamic headroom. The sonic signature is celebrated for its transparency, tight bass, and detailed, non-fatiguing highs. Its efficient Class D design allows it to run remarkably cool, a major benefit for rack mounting. Reviewers trust the 2350 as a robust, long-term investment. Despite a premium price, its rock-solid stability and performance deliver exceptional value for maximizing high-end passive speakers.
Know before you buy
Yes, this amplifier is designed with 2-ohm stability, allowing it to drive multiple speaker pairs or demanding low-impedance loads without compromising performance.
The dedicated Subwoofer Mode simplifies integration by optimizing the amplifier's output for low-frequency performance, making it easier to manage multiple subwoofers in a single system.
Yes, the ZoneMaster 2350 includes a speaker-level input, which allows you to connect it directly to systems that do not have dedicated RCA preamp outputs.
This hybrid design provides the sonic warmth and musicality of a Class AB input stage while utilizing the high efficiency and low-heat operation of a Class D power stage.
Yes, it features automatic power on/off functionality that can be triggered by either a 12V signal or by detecting an incoming audio signal, ensuring the unit only runs when needed.
Yes, the ZoneMaster 2350 is rack-mountable and occupies a 2U height, making it a professional choice for integrated audio systems.
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