Ground Zero ULTRA A-2

The results of three years of development, uncountable listening sessions, comparisons, tuning and testing led to the GZ ULTRA A-2, the most advanced analogue amplifier on the market uniting perfectly selected components reduced to the minimum of distractingly influencing aspects creating a masterpiece of an amplifier, matching our very own intention and everybody´s uncompromised expectations, worth to be called ultra-high-end. Not a huge surprise but a great honour, the performance of the GZ ULTRA A-2 charmed the members of the EISA, a group of international car audio trade journalists, right from the very first listening sessions that much that there was any doubt about the decision to award this amplifier as

“BEST PRODUCT – IN-CAR HIGH-END COMPONENT”

Teknisk information

• Channels:
• 2
• Output Power: (@ 4Ω)
• 2x 200 Watts RMS
• Output Power: (@ 2Ω)
• 2x 330 Watts RMS
• Output Power: (@ 1Ω)
• 2x 450 Watts RMS
• Output Power (@ 2Ω) bridged
• 1200 Watts
• Signal-to-Noise
• 120 dB
• Frequency Response
• 10 Hz – 80 kHz
• BIAS Setting
• Signal-to-Noise ratio (SNR) 120 dB (@ 100 Watts A-weighted)
• Overall Disortion (THD + N) 0.001%
• Damping factor 1500
• Input sensitivy: Switchable (1/2/4/8 V)
• Idle current @ BIAS Low 2.7 A
• Idle current @ BIAS High 4.2 A
• Recommended loudspeaker wiring: 4.0mm2
• Recommended power wiring: 25mm2 (x2)
• Fuses (inside / pc-board mounted) 2x 50A (MINI ANL)*
• (*Replace a defective fuse only by a new fuse with identical value)
• Dimensions (W x L x H)
• 250 x 502 x 80 mm / 9.84 x 19.76 x 3.15″