| Form Factor | Standard Width |
| Signal Path | Analog Hardware |
| Dimensions | 45 × 14.5 × 36 cm (W × H × D) |
| Weight | 17.6lbs |
| Power | 120VAC, 60Hz 120W (Max) |
| Frequency Response | 15Hz-30kHz ±1dB |
| Output Power (20Hz-20kHz, 1% THD, 8Ω) | 13W |
| Output Power (1kHz, Both Channels Driven, 8/4Ω | 17/21W |
| Output Power (1kHz, Single Channel Driven, 8/4Ω) | 20/26W |
| Output Power (Music, IHF, 8/4Ω) | 52/72W |
| THD (Continuous Power Output) | 1% |
| THD (8Ω, 10W) | 0.05% |
| IMD (Continuous Power Output) | 1% |
| IMD (8Ω, 10W) | 0.2% |
| Power Bandwidth (IHF, 8Ω, 1% THD) | 10Hz-45kHz |
| Damping Factor (8Ω, 1kHz) | 40 |
| Input Sensitivity (Phono, Mag) | 2.7mV |
| Input Impedance (Phono, Mag) | 50kΩ |
| Input Sensitivity (Mic) | 6mV |
| Input Impedance (Mic) | 100kΩ |
| Input Sensitivity (Aux) | 200mV |
| Input Impedance (Aux) | 70kΩ |
| Input Sensitivity (Tape) | 200mV |
| Input Impedance (Tape) | 70kΩ |
| Output Voltage (Tape) | 200mV |
| Output Voltage (Tape DIN) | 30mV |
| SNR (Phono) | 75dB |
| SNR (Aux) | 85dB |
| Tuning Range (FM) | 88MHz-108MHz |
| Usable Sensitivity (FM, IHF) | 2.2µV |
| Capture Ratio (IHF) | 3dB |
| Selectivity (FM, IHF) | 45dB |
| Image Rejection (FM, 98MHz) | 50dB |
| IF Rejection (FM, 90MHz) | 80dB |
| Spurious Rejection (98MHz) | 80dB |
| AM Suppression | 50dB |
| SNR (FM) | 65dB |
| THD (Mono) | 0.6% |
| THD (Stereo) | 0.8% |
| Stereo Separation (1kHz) | 40dB |
| Sub-Carrier Suppression | 40dB |
| Tuning Range (AM) | 525kHz-1605kHz |
| Usable Sensitivity (AM, IHF) | 15µV |
| Selectivity (AM, IHF) | 22dB |
| Image Rejection (AM, 1000kHz) | 45dB |
| IF Rejection (AM) | 35dB |
| SNR (AM) | 50dB |
| MSRP (1973) | $259.95 |
| Channels | 2 Channel |
| Connections | - Phono In · RCA (Phono, Cinch)
- Auxilaury In · RCA (Phono, Cinch)
- Tape 1 Monitor · RCA (Phono, Cinch)
- Tape 1 Record · RCA (Phono, Cinch)
- Tape 2 Monitor · RCA (Phono, Cinch)
- Tape 2 Record · RCA (Phono, Cinch)
- Ground · Binding Post
- Tape 1 Rec/PB · DIN
- Speaker x 4 · Other
- Microphone In · 1/4" Phone Jack (6.35mm)
- AC Outlet · Other
- AC Outlet (Switching) · Other
|
| Controls | - Speakers/Power · Rotary Switch · Power Off - Speaker A - Speaker Off - Speaker B - Speaker A+B
- Bass · Rotary Switch · Min - Flat - Max
- Treble · Rotary Switch · Min - Flat - Max
- Balance · Rotary Pot · Left - Norm. - Right
- Volume · Rotary Pot
- Loudness · Latching Push Switch
- FM Muting · Latching Push Switch
- Tape Monitor 1 · Latching Push Switch
- Tape Monitor 2 · Latching Push Switch
- Mono/Stereo · Latching Push Switch
|
| Notes | CSA approved (Canada) variant.
In 1972 Pioneer introduced the SX-525 and continued production up until around 1974. The SX-525 is a low to medium powered receiver designed for those on a budget. Pioneer's advertising language at the time stated:
Stereo on a budget can have a lot of the power and a lot of the frills of very expensive stereo, as this superlative new AM/FM receiver from Pioneer so amply proves. |
