Power Amplifiers
Phasemation SA-1500
Phasemation · 2024

The SA-1500 is a stereo integrated amplifier from Phasemation using a single 300B output tube per channel in a Class A, non-feedback design with 6SN7 driver stages. It features Lundahl output transformers, dual independent choke-filtered power supplies, and a power-amp-direct input mode that bypasses the volume control.
Specifications
| Frequency response | 10 Hz – 40 kHz |
| Minimum load | 4 Ω |
| Power output | 9 W into 4 Ω |
| Dimensions (W × H × D) | 430 × 240 × 380 mm |
| Weight | 18 kg |
As stated by the manufacturer — not community data.
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