All
Power amplifiers stereo — ToneWinner AD-1PA+
Description, images, technical data and specifications
ToneWinner AD-1PA+
Image source — © ToneWinner
The AD-1PA+ is a stereo power amplifier from Tone Winner, an updated version of the AD-1PA with a somewhat higher RCA signal-to-noise figure. The AD-1PA+ brings Tone Winner's more accomplished current engineering to dedicated stereo power amplification.
Key specs that matter
Output power is a substantial 300W into 8 ohms, matching the AD-1PA. Gain is 29.5dBu, also matching. Frequency response spans a wide 10Hz to 100,000Hz within plus-or-minus 3dB, matching. Signal-to-noise ratio is at least 108dB via XLR or 115dB via RCA - somewhat higher via RCA than the original AD-1PA. Total harmonic distortion plus noise is at or under an exceptionally low 0.008% at 100% global feedback, matching. Maximum power consumption is a modest 300W. At 444 x 294 x 449mm and 42kg, the AD-1PA+ shares the AD-1PA's chassis dimensions with a modest weight reduction.
Sound and use context
Expect exceptionally clean amplification reflecting the strong over-115dB RCA signal-to-noise figure and near-immeasurable 0.008% distortion figure, representing an update over the original AD-1PA.
Pairing
The substantial 300W output handles demanding loudspeaker loads with confidence.
Alternatives
Tone Winner's own original AD-1PA offers the earlier generation within the same broader power amplifier catalogue.
Key specs that matter
Output power is a substantial 300W into 8 ohms, matching the AD-1PA. Gain is 29.5dBu, also matching. Frequency response spans a wide 10Hz to 100,000Hz within plus-or-minus 3dB, matching. Signal-to-noise ratio is at least 108dB via XLR or 115dB via RCA - somewhat higher via RCA than the original AD-1PA. Total harmonic distortion plus noise is at or under an exceptionally low 0.008% at 100% global feedback, matching. Maximum power consumption is a modest 300W. At 444 x 294 x 449mm and 42kg, the AD-1PA+ shares the AD-1PA's chassis dimensions with a modest weight reduction.
Sound and use context
Expect exceptionally clean amplification reflecting the strong over-115dB RCA signal-to-noise figure and near-immeasurable 0.008% distortion figure, representing an update over the original AD-1PA.
Pairing
The substantial 300W output handles demanding loudspeaker loads with confidence.
Alternatives
Tone Winner's own original AD-1PA offers the earlier generation within the same broader power amplifier catalogue.
Specifications
Model name
AD-1PA+
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
300
Output power (4Ω) (W)
N/A
Gain (dBu)
29.5
Frequency response low +/- 3dB (Hz)
10
Frequency response high +/- 3dB (Hz)
100 000
Signal to Noise Ratio (dB)
≥108 (XLR), ≥115 (RCA)
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
≤0.008
Max power consumption (W)
300
Damping factor
N/A
Dimensions (mm)
444 × 294 × 449
Weight (kg)
42
Official link
More components
Power amplifiers stereo
ToneWinner AD-1PA