Description
Tube stereo preamplifier. Generally marked 'Electronic Industries'
Introduced
1969/1970 ?
Discontinued
?
Revisions
SP-2VT
SP-2SS (FET)
SP-2A
SP-2B (?)
SP-2C
Options
-
MSRP (US new retail)
$395 (SP-2VT)
$495 (SP-2SS)
$550 (SP-2C)
Specifications
| Frequency response | Aux and tuner inputs: ±1 dB 20 Hz to 20 kHz |
|---|---|
| Magnetic phono input: ±1 dB of RIAA curve | |
| Magnetic tape input: ±1 dB of Ampex Playback curve | |
| Distortion (THD) | Less than .01% at 5 Volts RMS output 1 kHz on either aux or magnetic phono input, gain max, high impedance. |
| Impulse distortion: Essentially none, 30 Hz to 15 kHz | |
| Noise & hum | Aux: 90 dB below 1 Volt input |
| Mag: 60 dB below 10 mVolt input | |
| Gain | Aux: 20 dB (voltage gain of 10X) |
| Mag: 54 dB (voltage gain of 500X) | |
| Input impedance | Aux: 500 kOhms |
| Mag: 50 kOhms | |
| Output impedance | |
| Output polarity | |
| Maximum inputs | Aux: 50 Volts RMS @ 1 kHz |
| Mag: 750 mVolts RMS @ 1 kHz | |
| Rated outputs | Maximum output level: At least 30 Volts RMS 1 kHz into high impedance. |
| Power supplies | |
| Tube complement | (10) 12AX7 |
| Power requirements | 117V 50/60Hz approximately 30 watts |
| Other | Output load: Up tp 2000pF and down to 10 kOhm for 5 Volts RMS output. Tone control range: ±15 dB at 20 Hz and 10 kHz |
| Dimensions | Panel: 15 5/8" W x 5" H, overall depth 14 1/2" Panel mounting cutout: 4 3/4" H x 15 1/4" W Depth behind panel: 14" (includes cable clearance) Knob and panel clearance: 1 1/4" |
| Weight | 16 lbs. Net, 19 lbs. Shipping |
Reviews
Pictures
Electronic Industries SP-2:
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SP-2:
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SP-2A:
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SP-2C:
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