Popping from my Lsi9s

LaNcE

I just watched a movie on my new setup. The movie was sounding good until there was the scene where the fish were in the mouth of the whale. THis scene had a lot of deep base. I started to notice some popping coming from the rear channels (Lsi9). The receiver I am using is a Denon AVR-5803. The volume was set to -20 db. I don't have my subwoofer yet, so the speakers are set to full range. Could I possibly be overpowering these speakers? I know the Lsi9's are rated for 200 watts @ 4 ohms. The 5803 produces 170 @ 8 ohms and 200 @ 6 ohms. But they don't indicate the power @ 4 ohms. THX ultra 2 spec and the manual indicate that they can power 4 ohm speakers. Does anyone have any suggestions?

F1nut

Set it for small, turn it down and buy that sub for "BASS". It would seem that you bottomed out the drivers, if you're lucky you didn't damage them permanently.

LaNcE

What is the best way I can tell if there is permanent damage?

LaNcE

Oh. By the way I was going to say the movie was, "Finding Nemo" FYI for anyone who is interested. (That scene has some deep base)

F1nut

Just play them at normal levels, if they sound ok, you're probably alright. Just one other thing, when you talking audio or musical instruments it's BASS, not base. Base is something like the base of a pole or the base of a mountain.

LaNcE

Sorry. I know that. I'm half asleep right now. It's hard to keep my eyes open. I guess I made a typo. (I can't believe I did it twice.)

F1nut

BTW, Welcome to the forum!

LaNcE

Thanks.

The strange thing about this whole situation is that -20 db under thx reference levels is not that loud. But I assume since this scene has some very low 'bass' (can I get it right this time?) the power output of the receiver probably jumps up closer to its dynamic peak of ~300 watts. @ 4ohms. Does this make sense? I'm just wondering when I do get my sub will I be able to keep the volumes closer to the THX levels. I personally think that 0 db in the standard is overly loud, but -20db is a good range for a close to theatre reproduction in a smaller area. Afterall if I wanted to just listen to low volumes I could just use my tv speakers. Albeit a non surround experience. What are your thoughts.

Frank Z

The issue here is not just the volume you were at but also the frequencies that were being sent to the speaker it self. My LsiFX's and 7's will do the same thing as your 9's if I hit them with a full range signal at a slightly elevated volume. F1 nailed it for ya, set those speakers to small and you'll be fine. The 9's are not a full range (20-20khz) speaker.

Once you add a sub you'll be able to to play your system at volumes that will make your ears bleed. The Lsi9's will be able to perform much better if they are not trying to handle the lower frequencies.

mantis

With a nice system like that you should buy a sub right away.Use a hi quality sub to match your system

scottvamp

Awesome setup Lance - buy a quality sub like the rest of your system and set to SMALL.

Jeffrey_B

Ditto. I have the LSiC, FX, and 9's and an SVS 20-39 PC+ sub. Set your speakers to SMALL and let the sub do the work. Then, the LSi's will sound great! JEFF

Dr. Spec

This just goes to show you how DVDs are all mixed differently.

Some DVDs only use the LFE channel for strong bass.

Other DVDs use ALL channels for full range signals. Like U-571 and (apparently) Finding Nemo - which BTW has brutally strong and aggressive bass.

Those of us with subs and surrounds set to small don't know the difference (and don't really care).

But those of us running large on all channels will get a rude awakening when a brute like the 5803 sends a full range high amplitude bass signal to the rear surround channels and you are running a speaker like the LSi9.

A good sub, small, and 80 Hz will fix you up straight away, and will also improve the overall sound of the system.

scottvamp

Where did Lance go???????????
Buying a quality sub I hope............;)
Lesson one
*Set Speakers to small
*Buy a quality subwoofer;)

stevecramer2

I have a Pioneer Elite VSX-55TXi (receiver). I think I understand the concept of the Large/Small settings in speaker bass response.

But moving this idea from the page to my setup is difficult. Don't really know which switch, button or knob to turn to get the 'Large - Small' setting?

Help, help!

SC2


Decoding:

Dual Motorola 150 MIP / 48-Bit DSP Engine
DTS-ES Discrete 6.1
DTS NEO 6: Music & Movie
DTS 96/24
Dolby Digital-EX
Dolby Pro Logic II Music & Movie


Processing:

Super Audio CD (SACD) Direct Mode
Hi-Bit Audio Scaler converts digital sources to 96kHz/24-Bit Resolution
96kHz/24-Bit A/D Conversion (2 Ch.)
192kHz/24-Bit DAC
Auto MCACC (Multi-Channel Acoustic Calibration) with Microphone
Air Studios Sound Tuning
Front Speaker all Alignment
Manual EQ Adjust (5-band x 7)
THX Select Post Processing
7-D Theater
7 Channel Stereo
6 Cinema Modes
6 Concert Modes
Digital Noise Reduction
Midnight Mode
Multi-Channel Multi-Band EQ
Loudness

Power:

THX Select Certification /Air Studios Sound Tuning
Advanced Direct Energy MOS FET Amplification
Wide Band Frequency Response (5Hz -100kHz)
100 watts x 2 Stereo
100 Watts x 7 Multi-Channel
Component Video On-Screen Display
Front Panel Jog Control for all On-Screen Menu Functions
Function Rename
30 Tuner Preset
Command Macro
MR/MS w/ Front Panel Control
Surround Back to MR/MS Amplifier Re-Configuration
12v Trigger
Illuminated Smart LCD Remote
DVD, DSS, DTV, Multi-CD Control

polkatese

Steve,
not knowing your receiver, I would venture it's in the setup On Screen Display menu, under speaker setup. Good luck!