The PA 2500 R integrated amplifier is a robust step up from the PA 2000 R, exhibiting a notable increase in size, power output, and connectivity options. Despite these enhancements, it maintains the revered sound quality of its predecessor. Typically, high-power amplifiers might lose nuances in dynamics and detail, but the PA 2500 R avoids this common pitfall. Featuring the same fundamental circuit design and circuit board layouts as the PA 2000 R, it includes significantly larger heat-sinks and houses two new high-performance mains power supply units. This configuration enables the PA 2500 R to deliver over 280 Watts of continuous power per channel into 4 Ohms loudspeakers, allowing it full control over speakers that pose challenges in terms of phase and impedance. Despite its increased power, the PA 2500 R preserves the dynamic, refined sound that users expect, matching powerhouse performance with sophisticated audio finesse.
Features
General Features
- Dimensions (H x W x D): 16.5 cm × 46 cm × 40.5 cm
- Weight: 14.5 kg
- Finishes:
- Silver anodised aluminium (43)
- Black anodised aluminium (42)
- Brushed
- Mains Connection: 100 – 120 V or 200 – 240 V, 50 – 60 Hz, Max. 2000 Watt
- Standby Power Consumption: < 0.5 W
Audio Performance
- Frequency Response:
- Amp:
1 Hz – 150 kHz (+0/-3 dB) - Preamp:
0.5 Hz – 300 kHz (+0/-3 dB)
- Amp:
- Signal to Noise Ratio:
- Unweighted: 105 dB
- A-weighted: 109 dB
- Total Harmonic Distortion/Intermodulation:
- Amp: < 0.02%
- Preamp: < 0.001%
- Slew Rate: 60 V/µs
- Damping Factor: > 65
- Channel Separation: > 90 dB
Connectivity
- High Level (RCA): 4 × 250 mV … 4 Veff/20 kOhms
- Balanced (XLR): 3 × 500 mV … 8 Veff/5 kOhms
- Phono-MM (Optional): 1 – 5 mV, 16 Capacitances (Phono module replaces one high-level input)
- Phono-MC (Optional): 60 – 1000 µV, 16 Impedances (Phono module replaces one high-level input)
- Headphone Output: 50 Ohms
- Pre-Outs:
- RCA: Nom 1 Veff, Max 9.5 Veff, 75 Ohms
- XLR: Nom 1.45 Veff, Max 19.6 Veff, 75 Ohms
Output Power
- Nominal Output per Channel:
- Into 8 Ohms: 140 Watts
- Into 4 Ohms: 280 Watts
- Into 2 Ohms: 560 Watts
Additional Features
- Loudness: Switchable, variable to suit loudspeaker efficiency
- Tone Controls:
- Bass/Treble: Switchable, channel-separate, -6 to +8 dB
- Reservoir Capacity: 120000 µF
- Control Interface: R2-Link
- Remote Control: SRC 1
- Additional Features:
- Trigger input +5V … 20V via adapter plug for remote power-on
- Input 3 (symmetrical) or 5 (asymmetrical) can be configured as Surround Pass Through
Optional Accessories
- PHE-P/PA R MM or MC phono content_default
- Power Three HD (Carbon)
- Power Bar
- Audio Quad (Carbon)
- Speaker Hex (Carbon)
