Pioneer SX-1250 User Manual
Specifications and Main Features
Model: Pioneer SX-1250
Dynamic Range: >100 dB
Output Power:
- 160W single channel at 8 ohm load
- 200W single channel at 4 ohm load
Intermodulation Distortion:
- 0.1% at 80 watts single channel at 8 ohm
- 0.05 % at 1 watt single channel at 8 ohm
THD (from AUX):
- <0.1 % across selection frequency range : 20Hz - 20,000 Hz
- <0.05% at 80 watts per channel output 8 ohms
- <0.07% at 1 watt per channel output, 8 ohms
FM Sensitivity:
- USE: MONO at 8.7 dB and STEREO at 14.5 dB
- 50-80 Mhz at a load of 300 ohm for stereo and mono configuration.
Damping Factor: 30
Damping sensitivity: 1 V/50k
Frequency response: 5 HZ to 100 Khz +/-9dB
Noise via Hum: 100 dB
In summary, SX-1250 model offers great sensitivity metrics when integrated with higher loads and an impedance of 300 ohm along with THD average of below 0.02%.
- Signal-to-Noise Ratio at 65 dBf: MONO: 80 dB, STEREO: 74 dB
- Distortion at 65dBf:
- 100 Hz MONO: 0.1%, STEREO: 0.25%
- 1 kHz MONO: 0.1%, STEREO: 0.2%
- Frequency Response: 30 Hz to 15,000 Hz ±8 dB
- Antenna Input: 300 ohms balanced, 75 ohms unbalanced
AM Section:
- Usability of the device in basic terms (IHF, Ferrite antenna): 300 μV/m
- Ratio on using select class devices: 40 dB
- Ratio on using select class devices: 55 dB
Miscellaneous:
- Input: 120V 60Hz
- Power Ratings: 650 W (UL, CSA), 1200 W
- Measurements: 556(W) x 186.5(H) x 464.5 D mm
- Weight Not Included: 29.2 kg (64 lb 4 oz), With Package: 33.2 kg (73 lb 1 oz)
Frequently Asked Questions
Q1: What is the expected power consistency output from the device called SX-1250?
A1: Power consistency expected is 160 watts for each channel for an 8 ohm load 200 watts for each channel for a 4 ohm load.
Q2: Define the total harmonic distortion level at the rated power?
A2: For each channel which is producing an 8 ohm output equal to 80 watts the total harmonic distortion will be equal to 0.1% and 1 watt total harmonic distortion will be equal to 0.05%.
Q3: For PHONO X, what is the input threshold?
A3: PHONO X has a 2.5 sensitivity input threshold with 50 k ohm impedance.
Q4: Please provide sensitivity level differences of the fm reception?
A4: The mono sensitivity is usable around 8.7 dBf 3 0μV and stereo around 14.5 dBf 5.8 μV.
Q5: The SX-1250 Receiver dimensions?
A5: In mm, SX-1250 measures 556 (W) x 186.5 (H) x 464.5 (D).
Q6: Does there exist a protection circuit inside the amplifier?
A6: Yes, amplifiers have such circuitry with the aim of safeguarding the power amplifiers against excessive power and the speakers from any potential failure.
Q7: What Is the Power Consumption Of The Sx-1250?
A7: Power consumption is 650 W (UL, CSA) and peaks at 1200 W.
User Manual
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