Stee-Z Posted August 14, 2013 Report Share Posted August 14, 2013 Just had the 10k running or the first time , it's scopes clean around 1/2 gain but it hums until you turn it down a little above 1/4 gain. I don't get what it could be . Any suggestions? Input voltage is 2.5v Quote (4)DD 9918's (2)DC 10k 8 6.5" focals 2 DD SS4 mid amps Audison Bit One processor Jl-cl-rlc line driver iPad in dash Dual Irragi 320a alts 8 batcaps 4000's Second Skin sound deadened Link to comment Share on other sites More sharing options...
Stee-Z Posted August 14, 2013 Author Report Share Posted August 14, 2013 Sorry for the quick bump, wanna figure this out Quote (4)DD 9918's (2)DC 10k 8 6.5" focals 2 DD SS4 mid amps Audison Bit One processor Jl-cl-rlc line driver iPad in dash Dual Irragi 320a alts 8 batcaps 4000's Second Skin sound deadened Link to comment Share on other sites More sharing options...
08tahoe Posted August 14, 2013 Report Share Posted August 14, 2013 It's normal, don't worry about it. Quote Link to comment Share on other sites More sharing options...
Amart88 Posted August 14, 2013 Report Share Posted August 14, 2013 (edited) A lot of amps will do this. My old 2100's and new 3500's all do this but not quite that extreme. If the DD-1 or scope shows distortion, the amp will hum and still hum a bit below that level. IIRC there was some sort of parts in the amp that make the noise and it is perfectly fine. I'm no expert though. Maybe someone from DC will chime in. Edited August 14, 2013 by Amart88 Quote My 2005 s10 blazer build. 4 zcon 18's walled. Link to comment Share on other sites More sharing options...
Raptorman Posted August 14, 2013 Report Share Posted August 14, 2013 Some Class D amps hum when they are clipping. It's basically an easy way to set your gains LOL. Quote 1996 GMC Sonoma Four Fi BTL Neo 18's In 2:1 6th Order Bandpass 2 Ampere 5k's @ .5 TEAM FI TEAM #LITHIUMCANTDEMO On 10/20/2013 at 0:37 AM, KillaCam said: Fucking with a Prius driver is like making fun of a disabled kid. Pussies. Link to comment Share on other sites More sharing options...
08tahoe Posted August 14, 2013 Report Share Posted August 14, 2013 A lot of amps will do this. My old 2100's and new 3500's all do this but not quite that extreme. If the DD-1 or scope shows distortion, the amp will hum and still hum a bit below that level. IIRC there was some sort of parts in the amp that make the noise and it is perfectly fine. I'm no expert though. Maybe someone from DC will chime in. Tony said it was "mostly the giant output inductors they all have". Quote Link to comment Share on other sites More sharing options...
08tahoe Posted August 14, 2013 Report Share Posted August 14, 2013 Some Class D amps hum when they are clipping. It's basically an easy way to set your gains LOL. My 9k starts to hum right at clipping when i set with -5db tone. Quote Link to comment Share on other sites More sharing options...
Stee-Z Posted August 14, 2013 Author Report Share Posted August 14, 2013 So is it alright to leave it where it shows an in lipped signal even if it hums? Otherwise humming stops at a little over 1/4 gain which doesn't seem right Quote (4)DD 9918's (2)DC 10k 8 6.5" focals 2 DD SS4 mid amps Audison Bit One processor Jl-cl-rlc line driver iPad in dash Dual Irragi 320a alts 8 batcaps 4000's Second Skin sound deadened Link to comment Share on other sites More sharing options...
hdorre Posted August 14, 2013 Report Share Posted August 14, 2013 My 4 channel and t1500-1bdCP both hummed when theyre clipping when I was setting my gains. Quote On 5/8/2011 at 7:38 PM, Kranny said: On 5/8/2011 at 7:35 PM, 'Maxim' said: It hurts me inside when I read stuff like this and remember you're 15 LMFAO so true Mitsubishi 3000GT (Old Build) Headunit: Pioneer 80PRS Frontstage: (2) McLaren Audio MLT-2 Tweeters & (4) PRV Audio MR Series Neo 6.5" Mids Substage: 4 15" Hybrid Subs - Tantric Motors & Sundown Softies Amps: Banda 2.4D Amp (Tweets), American Bass VFL 350.4 (Mids), and (2) Ampere 3800s Electrical :Singer 260A Alt & JY Power Lithium 2005 Chevy Colorado Ext Cab Headunit: Pioneer 80PRS Frontstage: 4 PRV 700Ti Tweets & 6 10" Delta Mids on 3000wrms Substage: 6 Fi BTL 18s in a 4th Order Walkthrough on 3 Wolfram 4500s Electrical: Singer "390" and JY Power My Official Feedback Thread Link to comment Share on other sites More sharing options...
08tahoe Posted August 14, 2013 Report Share Posted August 14, 2013 If i use the -5db tone and i set with my dd-1 as soon as the distortion light comes on my amp starts to hum. Right now i have it set with -10db tone so when i set the gain it is at humming level. I haven't had any problems with my amp and I'm sure you shouldn't either as long as your setting your gains with an o-scope or dd-1. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.