Specifications - Kenwood RX-28 Service Manual

RX-28
54
SPECIFICATIONS
(For U.K. and Europe)
Receiver unit
(Amplifier section]
Rated power output
(IEC / NF) From 63 Hz to 12,500 Hz, 0.7% T.H.D.
(DIN) «1 KHz at 8 QQ wi. cccceccssesteecsececncees 30W+30W
Total harmonic distortion
sereeeee 0.09% (40 Hz ~ 20 kHz, 1/2 Rated power, 8 Q)
cagasivuanbsoveadenseese 0.06% (1 kHz, 1/2 Rated power, 8 Q)
Frequency response
BX. oisstivctecstsstsssiesszvcestee 20 Hz ~ 40 kHz, + 0 dB, -3 dB
Signal to noise ratio
PHONO (MM) ........c0ece0ee 95 dB(IHF'66) / 80 dB(IHF'78)
BUX sss ecisssicssetatesesssececase 105 dB(IHF'66) / 90 dB(IHF'78)
PHONO (MM) ..........ccseccees 95 dB(DIN 500 mW output)
BUX, sacisssescsessecdtivcseseassins 105 dB(DIN 500 mW output)
Input sensitivity / Impedance
PHONO (MIM) .....cssssssesescecssccerseveeroonees 2.5 mV / 47 kQ
PLUK aasiiaeds ihcisnncs cucsiaveccevisvesisnsvacesveeseedesses 200 mV / 47 kQ
[Tuner section]
FM section
Tuning frequency range ..............0. 87.5 MHz ~ 108 MHz
Antenna impedance ..........cccssssssccesssees 75 Q unbalanced
Sensitivity (DIN at 75 Q)
MIONO wiicssssstessnssdeakcsdescetescessvet eeteseacenets 0.8 :.V / 10.8 dBf
STEREO....... 25 pV / 38.8 dBE
Total harmonic distortion (DIN at 1 kHz, 65.2 dBf input)
MONO secsssassivetasces snes sddesteccegedsscatansascessesaevaduseveaeaseses 0.3%
STEREO vives csssssecvesessenionseosssessuassettvessidnasestevsccozssastesd 0.5%
Signal to noise ratio
(DIN weighted at 1 kHz, 65.2 dBf input)
MONO 'wcsssscstcces vasencesscscescssasasensvesotansasonsessssoosensoasseonene 70 dB
STEREO vessciecicestesdescaccesacscsscsstvarccosrsaceonessavenesossssescase 64 dB
Selectivity (DIN £300 KHZ) .........sssssssccscssecsersscessenes 64 dB
Stereo separation (DIN at 1 KHZ) ......... cc .ccsessoereeeees 40 dB
Frequency reSPponse ..........ccscccessssescsssees 30 Hz ~ 15 kHz
+0.5 dB, -2.5 dB
Note:
MW section
Tuning frequency range ............06 $31 kHz ~ 1,602 kHz
Usable sensitivity ............ccccccsseseeeeee 14 pV / (500 pV/m])
Total harmonic distortion ...........sccccsescsssssssscssserssessees 0.5%
Signal to noise ratio... escsesscseseessssccseseerenes 49 dE
LW section
Tuning frequency range .........cssee 153 kHz ~ 281 kHa
Usable sensitivity ..............ssscsscssssseesscrsesessscsseseeseens 20 pV
Total harmonic distortion ..........seccescccseecasseeerenecescees 0.6%
Signal to noise ratio ............csccsscecsesscssnsserescecssenees 47 dE
[Cassette section]
TY Pe siistcssedsccacssvtissvccevvsescete ceases 4-track, 2-channel sterec
Heads
Playback / Record head ..........cscscccsresrectsaceee 1 (B deck'
Playback head............cssssscsssessrsscessesseesrsecsseeae 1 (A deck;
Erasing head ..........cccescescessscrseescenesssssmeesatess 1 (B deck'
Motes: ssessestiecSccisssisecestitecaleseasessssivecsateverssereds 1 (each deck:
Fast winding time .iu.....ccuscsessssecees Approx. 110 seconds
with C-60 tape
Frequency response (B deck)
Normal tape .........ccccsssseeeseee 30 Hz to 16,000 Hz +3 dE
CrO2 tape ....csecsccecscerescesseees 30 Hz to 17,000 Hz +3 dE
Signal to noise ratio
Dolby NR OWN... ceessceseseecseeeee 64 dB (Normal tape.
Dolby NR OFF uu... .essesesesseseeeeees 54 dB (Normal tape
Wow and flutter... ecscssssseeseeee 0.08% (W.R.M.S.
[General]
Power CONSUMPTION 2.0.0... cs sesccscceseeceeeeessaeseseesenenee 130 W
Dimensions .......cccssccecesesceseenesseeee W: 360 mm (14-3/16"
H: 319 mm (12-9/16"
D: 309 mm (12-3/16"
Weight (met) ............cscccssssccsscssteversesencee cones 7.0 kg (15.4 Ib
KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice,