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Proton 520B stereo amplifier - dark grey :

Features :
1984 vintage 20W amplifier

No remote control

Low profile stereo amplifier with similar appearance to NAD equipment

Proton are a 45+ year old Taiwanese worldwide OEM electronics producer who also manufactured NAD equipment,
Proton components in general, use superior quality components

Matching analogue Proton 420 tuner now listed

Well tested prior to listing, really good on headphones output

Controls cleaned and phono preamp tested with good results

No tone controls : this is where the NAD minimalist designs started, only better

Specifications :
Vintage : 1984 model
Power : 20W RMS at 8 ohms with THD distortion 0.015%
Clipping power : at 8/4/2ohms : 26W / 35W / 39W
Dynamic headroom : at 8ohms/4ohms/2ohms : 46W / 78W / 100W
Damping factor : >300
Phono : MM moving magnet preamplifier
Frequency response : 20 to 20kHz ±0.2dB
Power bandwidth at THD 0.1% : 10Hz to 60kHz
High level input resistance / capacitance : 15kOhm / 220pF
Line input sensitivity : VIDEO / tape play: 150mV, phono MM: 2.5mV
Residual noise : 0.3mV
Channel crosstalk [1kHz] : 65dB
Signal to noise [A-weighted] : Tape / Aux: 96dB, Phono MM: 87dB
Phono input resistance [MM] : 47kohm
Phono overload [MM] at [20Hz / 1kHz / 20kHz] : 20mV / 200mV / 2.0V
Phono THD at 4.5V output [MM] : 0.03%
RIAA response accuracy [MM] : ±0.2dB
Speaker outputs : A only
Tone controls : none
Dimensions [ W x H x D ]: 420 x 87 x 280mm
Weight : 5.2kg - packed weight ~ 7kg Please click here to ask a question
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  • Seller location: Whangarei, Northland, NZ

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