| Model ID | SX-1250/S |
| Form Factor | Standard Width |
| Signal Path | Analog Hardware |
| Dimensions | 55.4 × 18.8 × 46.4 cm (W × H × D) |
| Weight | 64.25lbs |
| Power | 110V/120V/220/240VAC (Switchable), 50/60Hz 1200W (Max) |
| Frequency Response | 5Hz-100kHz +0dB, -1dB |
| Power Output (8/4Ω) | 160W/200W |
| Power Output (DIN, 4Ω, 1kHz, THD 1%) | 258W |
| THD (Rated Output) | ≤0.1% |
| THD (80W, 8Ω) | ≤0.05% |
| THD (1W, 8Ω) | ≤0.07% |
| IMD (Rated Output, 8Ω, 50Hz:7kHz) | ≤0.1% |
| IMD (80W, 8Ω, 50Hz:7kHz) | ≤0.05% |
| IMD (1W, 8Ω, 50Hz:7kHz) | ≤0.07% |
| Input Sensitivity (Power Amp In) | 1V |
| Input Impedance (Power Amp In) | 50kΩ |
| Damping Factor (20Hz-20kHz, 8Ω) | 30 |
| SNR (IHF, Short-Circuited, A Network) | 100dB |
| Input Sensitivity (Phono 1, 2) | 2.5mV |
| Input Impedance (Phono 1, 2) | 50kΩ |
| Phono Overload Level (1kHz, THD 0.1%) | 500mV |
| Input Sensitivity (Mic) | 6.5mV |
| Input Impedance (Mic) | 50kΩ |
| Input Sensitivity (Aux) | 150mV |
| Input Impedance (Aux) | 50kΩ |
| Input Sensitivity (Tape Play 1, 2) | 150mV |
| Input Impedance (Tape Play 1, 2) | 50kΩ |
| Output Level (Tape) | 150mV |
| Output Level (Tape Rec 2, DIN Connector) | 30mV |
| Output Impedance (Tape Rec 2, DIN Connector) | 80kΩ |
| Output Level (Pre Out) | 1V |
| Output Impedance (Pre Out) | 1kΩ |
| THD (Pre Out, 20Hz-20kHz, 1V) | ≤0.02% |
| Frequency Response (RIAA EQ) | 30Hz-20kHz ±0.2dB |
| SNR (Phono, IHF, Short-Circuited, A network) | 75dB |
| Frequency Response (Aux, Tape) | 10Hz-50kHz +0dB/-1dB |
| SNR (Aux, Tape, IHF, Short-Circuited, A network) | 90dB |
| FM Sensitivity (Mono) | 8.7dBf (3.0μV/300Ω) |
| FM Sensitivity (Mono, 50dB Quieting) | 11.5dBf (4.1μV/300Ω) |
| FM Sensitivity (Stereo) | 14.5dBf (5.8μV/300Ω) |
| FM Sensitivity (Stereo, 50dB Quieting) | 36.0dBf (69μV/300Ω) |
| FM Usable Sensitivity (IHF '58) | 1.5μV |
| FM SNR (65dBf, Mono) | 80dB |
| FM SNR (65dBf, Stereo) | 74dB |
| FM Distortion (65dBf, 100Hz, Mono) | 0.1% |
| FM Distortion (65dBf, 100Hz, Stereo) | 0.25% |
| FM Distortion (65dBf, 1kHz, Mono) | 0.1% |
| FM Distortion (65dBf, 1kHz, Stereo) | 0.2% |
| FM Distortion (65dBf, 6kHz, Mono) | 0.3% |
| FM Distortion (65dBf, 6kHz, Stereo) | 0.3% |
| FM Capture Ratio | 1.0dB |
| FM Alternate Channel Selectivity | 83dB |
| FM Spurious Response Ratio | 110dB |
| FM Image Response Ratio | 110dB |
| FM IF Response Ratio | 120dB |
| FM AM Suppression Ratio | 60dB |
| FM Muting Threshold | 13dBf (4.9μV/300Ω) |
| FM Stereo Separation (1kHz) | 50dB |
| FM Stereo Separation (35Hz-15kHz) | 35dB |
| FM Subcarrier Product Ratio | 74dB |
| FM SCA Rejection Ratio | 74dB |
| Frequency Response (FM) | 30Hz-15kHz +0.3dB/-1.0dB |
| Input Impedance (Antenna, Balanced) | 300Ω |
| Input Impedance (Antenna, Unbalanced) | 75Ω |
| AM Sensitivity (IHF, Ferrite Antenna) | 300μV/m |
| AM Sensitivity (IHF, External Antenna) | 15μV |
| AM Selectivity | 40dB |
| AM SNR | 55dB |
| AM Image Response Ratio | 65dB |
| AM IF Response Ratio | 85dB |
| Controls | - Power · Toggle Switch · On/Off
- Bass 50Hz · Rotary Encoder · -5db to 5db
- Bass 100Hz · Rotary Encoder · -10db to 10db
- Tone · Toggle Switch · On/Off
- Treble 10kHz · Rotary Encoder · -10db to 10db
- Treble 20kHz · Rotary Encoder · -5db to 5db
- Tape Duplicate · Toggle Switch · On/Off
- Tape Monitor 1 · Toggle Switch · On/Off
- Tape Monitor 2 · Toggle Switch · On/Off
- Adaptor · Toggle Switch · On/Off
- Balance · Rotary Encoder · Left/RIght
- Mode · Toggle Switch · Stereo/Mono
- Loudness · Toggle Switch · On/Off
- Volume · Rotary Encoder · -∞db to 0db
- Muting · Toggle Switch · Off/-20db
- Speakers · Latching Push Switch · A
- Speakers · Latching Push Switch · B
- Speakers · Latching Push Switch · C
- Filter · Latching Push Switch · 30Hz
- Filter · Latching Push Switch · 8kHz
- FM · Latching Push Switch · Multipath
- FM · Latching Push Switch · Muting Off
- Source · Latching Push Switch · AM
- Source · Latching Push Switch · FM
- Source · Latching Push Switch · Phono 1
- Source · Latching Push Switch · Phono 2/Mic
- Source · Latching Push Switch · Aux
- Radio Station · Rotary Pot · AM/FM
|
| Displays | - Display · Radio Station · AM/FM
- Meter · Signal
- Meter · Tuning
- Indicator · Speaker A
- Indicator · Speaker B
- Indicator · Speaker C
- Indicator · Stereo
- Indicator · AM
- Indicator · FM
- Indicator · Phono 1
- Indicator · Phono 2
- Indicator · Aux
|
| Notes | General export model with FM de-emphasis selector switch (25μs/50μs/75μs). |
