hello all- I am very happy with my new 3805, but am wondering if anyone knows how to calibrate the db level per channel on the OSD. I can go anywhere from +6 to -6 per channel. Now, I left it at 0 (default) for each channel, but I am disappointed by how loud it will play. Would setting their db levels to - 6 db get more loudness potential from my speakers? Thanks!
I have the 3805. The easiest way to do this is to get the calibration microphone ($60 at crutchfield) and let the 3805 calibrate itself in the auto setup mode.
If you want to do it manually, measure your listening distance from each speaker, put that into your setup mode, then use an SPL meter ($30 at radio shack) and measure the actual sound level using the 3805's built in test tones is the same for each channel. You may want your center channel set about -2dB from your Left and Right Front. And you would want to set you dB level to +6, not -6 to increase your sound. I have mine L&r set at +2 for the left and +3 for the right because the right is about .5 ft farther away. Hope that helps.
BTW - what speakers do you have and what are you listening to that you can't get it loud enough? What volume level are you at? My 3805 would blow the back wall of the house off if I'm not careful!
Thanks! I will get one of those mics eventually. I really wanted to learn how it works as well. I am probably playing them too low as I have seen the OSD speakers set to -4 db today. I was playing Twister the movie when I was disappointed about the volume leve. Whil I did not have the sound all the way up for more than a second for testeing.. ( so it needs to be set more at the +3 range to get more out of the speakers?)
below are the full stats of my 5.1 set up. Thanks for the advice and any more that you might have: Subwoofer
Velodyne CHT-10 Frequency Response:28Hz-120Hz High Pass Crossover:Passive 85Hz Low pass crossover: 40Hz-120Hz SPECIFICATIONS CHT-10 Cabinet (H,W,D) 16.25" x 15" x 21" Frequency Response 28Hz-120Hz (±3 dB) High Pass Crossover Passive 85Hz (6 dB/octave slope) Low Pass Crossover 40Hz -120Hz (12 dB/octave, 24 dB ultimate) Amplifier 375 watts (Class A/B) 150 watts RMS power Woofer 10" forward firing Magnet 40 oz. Voice Coil 2" four-layer copper Inputs Line-level and speaker-level Outputs Line-level and speaker-level Warranty Two years (parts and labor) Weight 53 lbs. (approx.) ------------------------------------------------------------ Center Channel LCR60 S3
Description 2½-way vented-box system with magnetic shielding Dimensions Height: 175mm (6.9in) Width: 460mm (18.1in) Depth: 305mm (12.2in)
Net Weight 9.0kg / 19.8lb Freq. Response 70Hz - 22kHz ± 3dB on reference axis Freq. Range -6dB at 55Hz and 42kHz Sensitivity 88dB spl (2.83V 1m) Normal Impedance 8 ohms (minimum 3.0 ohms) Power Handling 25W - 120W into 8 ohms on unclipped programme Drive Units Unit 1: 1x 25mm (1in) metal dome high-frequency Unit 2: 1x 130mm (5½-in) woven Kevlar cone bass/midrange Unit 3: 1x 130mm (5½-in) woven Kevlar cone bass
Finish Cabinet: Black Ash or Sorrento (light oak) vinyl Grille: Black Cloth Dispersion Description: Within 2dB of response on reference axis Horizontal: over 20° arc Vertical: over 40° arc (Units horizontally in line)
Frequency Response (±3dB): 48Hz - 22kHz Recommended Power Amplifier Range: 15 - 150 watts Sensitivity: 88dB Impedance: 8 ohms Crossover Frequency: 2800Hz; 24dB/octave Dimensions (H x W x D): 36" x 8-1/2" x 8-3/4" (91.4cm x 21.6cm x 22.2cm) Weight: 34 lb each, 15.5kg each ------------------------------------------------------------
Surround Speakers RT28i Electrical Overall Frequency Response 49Hz-27kHz Lower -3dB Limit 59Hz Upper -3dB Limit 26kHz Nominal Impedance 8 ohms Recommended Amplifier Power 20-125 w/channel Efficiency 89 dB Crossover 2.35kHz between mid-bass drivers and tweeter; 2nd order HP/LP complement. Mylar bypass capacitor in HP section. Inputs 5-way binding posts
You should be hearing some loud sound based on your speakers.
Yes, try setting you front Left and right at about +3.
The mike is easy. You plug it into the receiver, sit in your primary listening location, go to OSD and press Auto Setup and let the 3805 do its thing. Check out audioholics.com for a detailed review of the 3805.
Great! I appreciate it and I will look up the link. Just for the sake of relationships between db's and speakers,I have a question for you: How far away are your 2 surround speakers and what db levels have you set them?
The surrounds are about 4 feet an 10 feet from my primary listening position. The auto calibration wants them set at 0 and +4, but I have overriden that and set them both to 0.