Vocal Master VA302E
Shure; Chicago,: Vocal Master VA302E [Ampl/Mixer] ID = 1821612 1400x839
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| Year: 1970 | Category: Audio Amplifier or -mixer | ||||
| Semiconductors (the count is only for transistors) | 38: |
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| Main principle | Audio-Amplification |
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| Wave bands | - without |
| Details | |
| Power type and voltage | Alternating Current supply (AC) / 240 Volt |
| Loudspeaker | - This model requires external speaker(s). |
| Power out | 100 W (undistorted) |
| from Radiomuseum.org | Model: Vocal Master VA302E - Shure; Chicago, Evanston, |
| Material | Metal case |
| Shape | Miscellaneous shapes - described under notes. |
| Dimensions (WHD) | 640 x 205 x 380 mm / 25.2 x 8.1 x 15 inch |
| Notes | Portable Gesangsanlage (Suffix E = Europa-Version), bestehend aus dem Steuergerät und zwei Lautsprechersäulen VA300S; 6 Eingänge, Federhall, Rückkopplungsfilter und Endstufe mit max. 300W Leistung. Gehäuse: 19-Zoll-Einschub (schräg) im Transporteinschub mit Griffmulden.
Amplifier Type : All silicon transistor mixer/power amplifier
Power Output : I00 watts continuous '(RMs); (to 8 ohm load, see Figure 3, Page 7)
Voltage Gain : 80 db Input Attenuator "Out" (8 ohm load)
65 db lnput Attenuator "In" (8 ohm load)
Frequency Response : k2 db 40 Hz. to 20,000 Hz. (typical)
Input Impedance : 20 ohms lnput Attenuator "Out" 500 ohms lnput Attenuator "In"
Distortion : 5% maximum at rated output at 1 KHz.
Hum and Noise : 60 db below rated output
Speaker Load lmpedance Nominal 8 ohms; operational 5.3 ohms minimum
Input Clipping Level :Greater than 25 Mv. Input Attenuator "Out" Greater than 150 Mv. lnput Attenuator "In"
Bass Control Action : t13 db at 100 Hz. with respect to "flat" setting
Treble Control Action : i10 db at 10,000 Hz. with respect to "flat" setting
"Aux. Hi-Level" Output Jack : Impedance 5,000 ohms; Output 19 db below speaker
output (to 8 ohm load); nominal - 2 V at 50 watts to speakers, Clipping Level 4 V.
"Mic. Level" Output : Hi-Z: impedance 1,000 ohms; Output 30 db below auxiliary output;
nominal 60 Mv. Clipping Level 120 Mv.
Lo-Z: impedance 36 ohms; Output 52 db below auxiliary output; nominal 5 Mv. Clipping Level 10 Mv.
Echo-"To Input" Jack (Output To External Echo Unit) :Impedance 10,000 ohms;
Output 20 db above microphone inputs with individual volumes at "10"; Clipping Level 3 V.
Echo-"To Output" Jack (Input From External Echo Unit) : Impedance 40,000 ohms;
Sensitivity 200 Mv. for rated amplifier output with "Echo Gain" Control and
"Master Volume" Control at maximum settings; Clipping Level 2 V. with maximum
setting of "Echo Gain" control. Clipping level increases with reduced
setting of "Echo Gain" control.
"Reverb Switch" Jack :D.C. switching (no audio), parallels the Master Reverb
In-Out Switch. Any cable with a resistance of less than 5,000 ohms may be used.
Center Notch Frequencies of "Anti-Feedback" Filters : Filter "A" 5,000 Hz.
Filter "B" 2,200 Hz.
Filter "C" 1,000 Hz.
Filter "D" 155 Hz
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| Net weight (2.2 lb = 1 kg) | 18.2 kg / 40 lb 1.4 oz (40.088 lb) |
| Mentioned in | Funkschau (FS 1970 Heft 24 S. 838) |
Model page created by Günther Stabe † 19.8.20. See "Data change" for further contributors.
All listed radios etc. from Shure; Chicago, Evanston, Niles (IL)
Here you find 122 models, 116 with images and 44 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
