Page 1
PROTECTIONLEDCOMESONWHENTHEAMPLIFIERISPOWEREDUP.
Checkforshortsonspeakerleads.
Checkthatvolumecontrolontheheadunitisturneddownlow.
Removespeakerleads,andresettheamplifier.IftheProtectionLEDstillcomeson,
thentheamplifierisfaulty.
Theamplifierwillshutdownautomaticallywhentheunitstemperaturegoesupto80C
Thiswillprotecttheunitsfromdamage.
`
T
ROUBLESHOOTING
Beforeremovingyouramplifier,refertothelistbelowandfollowthe
suggestedprocedures.Alwaystestthespeakersandtheirwiresfirst.
Checkforgoodgroundconnection.
CheckthatremoteDCterminalhasatleast7VDC.
Checkthatthereisbatterypoweronthe+terminal.
CheckallFUSES.
CheckthatProtectionLEDisnotlit.Ifitislit,shutoffamplifierbrieflyandthen
repowerit.
DisconnectallRCAinputstotheamplifier,ifhiss/noisedisappears,then
pluginthecomponentdrivingtheamplifierandunplugitsinputs.Ifhiss/
noisedisappears,goonuntilthefaulty/noisycomponentisfound.
Itisbesttosettheamplifierinputlevelasinsensitiveaspossible.Thebest
subjectiveS/Nratioisobtainablethisway.Trytodriveashighasignallevel
fromtheheadunitaspossible.
AMPLIFIERWILLNOTPOWERUP.
HIGHHISSORENGINENOISE(ALTERNATORWHINE)INSPEAKERS.
Checkthattheminimumspeakerimpedanceforthatmodeliscorrect.
Checkforspeakershorts.
Checkthatthereisgoodairflowaroundtheamplifier.Insomeapplications,
anexternalcoolingfanmayberequired.
CheckthattheLevelcontrol`sissettomatchthesignalleveloftheheadunit.
Checkthatallcrossoverfrequencieshavebeenproperlyset.
Checkforshortsonthespeakerleads.
ThisisalwayscausedbyapoorlygroundedRCApatchcord.
AMPLIFIERSGETSVERYHOT.
DISTORTEDSOUND.
HIGHSQUEALNOISEFROMSPEAKERS.
`
PDF 文件使用 "pdfFactory" 试用版本创建 ÿ ÿ www.fineprint.com.cn
Page 2
3
1
2
4
5
6
7
8
9
9
10
8
10
PDF 文件使用 "pdfFactory" 试用版本创建 ÿ www.fineprint.com.cn
Page 3
SPECIFICATIONS
BB2
CrossoverNetwork
Sub-wooferFilter40Hz~200Hz
Model
Sub-woofer@2Ohms430W
SpeakerImpedance2Ohm
THDDistortion<0.08%
IMDDistortion<0.08%
FrequencyResponse40Hz~200Hz
InputSensitivity200mV~2V
InputImpedance15K
Signal-to-NoiseRatio90dB
Protection(Short,Temperature)yes
FuseRating2x30A
SizeLxWxH349x195x53mm
InputSensitivity2V~20V
PDF 文件使用 "pdfFactory" 试用版本创建 3 3 www.fineprint.com.cn
Loading...