Yamaha CR-840 User Manual
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Yamaha User Manual
Specifications and Main Features
- Model Name: CR-840
- Minimum RMS Output Power per Channel:
- 65 Watts (4 ohm load) from 20Hz to 20kHz with maximum THD of 0.02 percent
- 60 Watts (8 ohm load) from 20Hz to 20kHz with maximum THD of 0.02 percent
- Not less than 65 Watts at 4 ohm or 60 watts with 8 ohm load (both frequencies are within 20Hz and 20kHz and THD under 0.02 percent)
- Continuous RMS Power at Constant Power level of 1 kHz (both channels driven)
- 75 Watts (4 ohm load)
- 65 Watts (8 ohm load)
- Input Sensitivity / Impedance:
- Phono Input: 2.5 mV (47 kOhm)
- Auxiliary, Tape1, Tape2 Input: 120 mV (40 kOhm)
- Maximum Input Levels:
- Phono Input: 140 mV (15Kohm) at 1kHz
- Output Level / Impedance:
- REC OUT terminals (Phono): 120mV (220 Ohm)
- Auxilliary , Tape: 120 mV (5 kOhm)
- Frequency Response:
- Phono RIAA: deviation from flat li=-0.5 dB + 0.5 to - 0.4 dB
- Aux. Tape 1/2 to SP Out at 20Hz to 20kHz + 0.3dB
- Tone Control: (Winamp Audio control module)
- Bass turnover frequency at 350Hz, - 10 dB at 50HZ
- Presence center frequency about 3 KHz, gaining +6 dB
- Treble turnover frequency at 3.5kHZ, + 10 dB at 20kHz
- Filters and Loudness Control:
- Low Limit: 25 Hz (12dB octave)
- High Limit: 8 kHz (6dB octave)
- Signal-to-noise ratio (IHF-A Network): 10 dB up to 45 dB, 20 dB typically
- Phono: 94 dB (INPUT shorted)
- Aux, Tape 1,2: 100 dB
- Residual noise: 0.17 mV
- Distortion (20 Hz to 20 kHz):
- Phono to Rec Out: 0.02% 1V output
- Aux, Tape to SP Out (8 Ohm): 0.01% at 30 W
- Tuner Section Specifications:
- FM Tuning Range : 87.6 to 108MHz
- Usable Sensitivity : 300 Ohm 9.3 dBμV, 75 Ohm 9.3 dBμV
- Mono 50dB Quieting Sensitivity: 15.3 dBμV
- Stereo 50dB Quieting Sensitivity: 37.3 dBμV
- General:
- Power Consumption: 340W (Canadian 510 VA)
- Dimensions (W x H x D): 510 x 167 x 386mm (20” x 6-9/16” x 15-1/4”)
- Weight: 13.6 kg (30 lbs)
Frequently Asked Questions
- What is the power output of the CR-840?
- The CR-840 has a their minimum RMS power output rating of 65 Watts @ 4 ohms and 60 Watts @ 8 ohms.
- What audiovisual equipment can be connected to the CR-840?
- Some example devices include Turntables, Tape decks and others, these can be connected through the AUX input and the REC OUT terminals.
- What are the specifications of response frequency of CR-840?
- The frequency response is measured from 20 Hz to 20 kHz with variation of 0.3 dB.
- Is there any way to boost the FM reception?
- Use a more suitable external FM antenna installed at a higher location for better FM reception.
- Please advise: the receiver does not output any sound. What should I do?
- Confirm that the speaker switch is in the ON position, the input selector is set to the correct mode and the speaker connections are proper.
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