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Install any combination of speakers independently on all 4 channels being careful not 
to load any single channel below 2 ohm stereo. For typical 6” x 9” or 6.5” or component 
speaker installs, set the Crossover Mode Switch to Full Range.

When bridging the four channel amplifier, make sure that your final woofer impedance on each bridged 
channel  is  no  lower  than  4  ohms.  Set  the  Crossover  Mode  Switch  to  Low  Pass  and  begin  by  setting  the  
crossover frequency control to 100Hz and tuning from there. The dashboard bass remote control works only 
on channels set to Low Pass.

Basic 4 Channel Configuration

4 Channel Amplifier Bridged to 2 Channels

CROSSOVER MODES SWITCH IN
FULL RANGE POSITION

LEFT SPEAKER

2-4 OHM

RIGHT SPEAKER
2-4 OHM

LEFT SPEAKER

2-4 OHM

RIGHT SPEAKER
2-4 OHM

CH 1-2
CROSSOVER MODE SWITCH
IN LOW PASS POSITION 

CH 3-4
CROSSOVER MODE SWITCH
IN LOW PASS POSITION 

RIGHT SUBWOOFER
MINIMUM IMPEDANCE
4 OHMS

LEFT SUBWOOFER
MINIMUM IMPEDANCE
4 OHMS

FRONT SPEAKERS

REMOTE SUBWOOFER

LEVEL CONTROL 

REAR SPEAKERS

Содержание United Boston

Страница 1: ......

Страница 2: ...omatically and protecting it from dangerous conditions The 2 LED s located on the side of the amplifier provide indication of the amplifier status the Power LED will light when the amplifier is receiving proper power ground and remote voltages and the IC monitoring sequence indicates the amp is functional In case the amplifier encounters a diagnostic condition as listed below the second LED will l...

Страница 3: ... cables from your sound source to the inputs of the amplifier We suggest the use of high quality shielded RCA patch cords to help reduce and eliminate unwanted electrical noise to your system Be sure to run the RCA cables on the opposite side of the vehicle that you used to carry the power and ground leads of the amplifier USINGTHE BUILT IN LOW PASS ELECTRONIC CROSSOVER All the United Series ampli...

Страница 4: ...ies from 40Hz to 150Hz A frequent mistake made is setting the low pass frequency too low especially when using vented sub woofer enclosures We recommend that for most installations you do not set the frequency knob lower than 100Hz the 12 o clock position When using the amplifiers for component speakers or coaxial you will want to set the CROSSOVER MODE switch to HIGH PASS The FREQUENCY control kn...

Страница 5: ...sition The pre amp circuitry will not mix any signals thereby preserving full Left to Right Balance and Front to Rear fader control Should your head unit have an additional subwooferRCAoutput thattypicallyneeds to be attached to a separate subwoofer amplifier When configuring a 4 channel amplifier to a 3 channel system you can use an RCA Y adaptor to send the subwoofer preamp signaltochannels3and4...

Страница 6: ... Pass and begin by setting the crossover frequency control to 100Hz and tuning from there The dashboard bass remote control works only on channels set to Low Pass Basic 4 Channel Configuration 4 Channel Amplifier Bridged to 2 Channels CROSSOVER MODES SWITCH IN FULL RANGE POSITION LEFT SPEAKER 2 4 OHM RIGHT SPEAKER 2 4 OHM LEFT SPEAKER 2 4 OHM RIGHT SPEAKER 2 4 OHM CH 1 2 CROSSOVER MODE SWITCH IN L...

Страница 7: ...en wiring a 3 channel system 4 Channel Amplifier in 3 Channel Mode 4 Channel with Mixed Mono LEFT SPEAKER 2 4 OHM RIGHT SPEAKER 2 4 OHM SUBWOOFER MINIMUM IMPEDANCE 4 OHMS CH 1 2 CROSSOVER MODE SWITCH IN HIGH PASS POSITION CH 1 2 CROSSOVER MODE SWITCH IN HIGH PASS POSITION CH 3 4 CROSSOVER MODE SWITCH IN LOW PASS POSITION CH 3 4 CROSSOVER MODE SWITCH IN LOW PASS POSITION REMOTE SUBWOOFER LEVEL CONT...

Страница 8: ...ut jacks Rear Left and Rear RightintoamplifiersChannels3and4inputjacks Subwoofer output in to Channel 5 If your head unit has only a single subwoofer output use a Y adaptor to feed both Channel 5 inputs Set the Input Mode Switch to 5Ch The amplifiers preamp circuitry will automatically mix all the channels and output will occur on all 5 channels There will beLeftandRightbalance FronttoRearFaderwit...

Страница 9: ... should not fall below 2 ohms Please see page 26 and 27 for various speaker impedance configurations INPUT MODE SETTO 5 CHANNEL SUBWOOFER MINIMUM IMPEDANCE 2 4 OHMS COMPONENT SPEAKERS MINIMUM IMPEDANCE 2 4 OHMS DVC 4 OHM SUBWOOFER IN PARELLEL 2 OHM LOAD 4 OHM SUBWOOFER 4 OHM SUBWOOFER 2 OHM MINIMUM LOAD OR COMPONENT SPEAKERS MINIMUM IMPEDANCE 2 4 OHMS Boston 5 Channel Amplifier Speaker Wiring Mono...

Страница 10: ... are 1 ohm mono block Class D amplifiers No matter how many woofers you choose to wire up to this amplifier the final impedance load should not fall below 1 ohm Please see pages 26 and 27 for various speaker impedance configurations Class D Mono Block 1 Ohm Amplifier Dakota Olympia Speaker Configuration Dakota Olympia Vegas DVC 4 OHM SUBWOOFER IN PARELLEL 1 OHM LOAD 2 OHM SUBWOOFER 2 OHM SUBWOOFER...

Страница 11: ...els There is no need to gain match the two amplifiers it will occur automatically The remote dash bass control should be plugged in to the Master amplifier and it will control both amplifiers Make sure to use the supplied DATA CABLE for linking of the amplifiers and not the dash board bass remote cable or any other phone jack cable If you misplace your cable contact Cadence or your local dealer to...

Страница 12: ...al of the Slave amplifier Please see diagram on previous page for a detailed drawing When daisy chaining two amplifiers for independent woofers wire up the the woofers as you would typically wire them when installing individual systems even down to 1 ohm By using the Master Slave input configuration you gain the advantage of having one amplifiers preamp section control both amplifiers eliminating ...

Страница 13: ...tput Phase Control Switch High Speed MOSFET Power Supply Studio Grade Bipolar Output StageTransistors Fully Adjustable 12dB Octave Crossover Low Pass 50Hz 150Hz Subsonic Filter 10Hz 50Hz Fully Adjustable Bass EQ Boost Control Mute and Delay Soft Start System Full IC Controlled Protection Circuitry Fully Adjustable Subsonic Filter Adjustable Bass Focus Control with Rumble Dashboard Bass Remote Cont...

Страница 14: ... 8 OHM TO AMPLIFIER 4 4 OHM 4 OHM TO AMPLIFIER 2 2 OHM 2 OHM TO AMPLIFIER 1 1 OHM 2 OHM TO AMPLIFIER 2 OHM TO AMPLIFIER 4 4 OHM 2 2 OHM 2 2 OHM Please note that the minimum impedance load for single Cadence United Amplifiers is 2 ohm stereo and 4 ohm mono bridged Lower impedance loads will cause overheating and may damage the amplifiers Do not mix different impedance speakers in series and or para...

Страница 15: ...ements these specifications are subject to change without notice Though we tried our best to insure that this manual is free and clear of errors please don t hold us responsible for printing errors Copyright by Cadence Acoustics LTD ...

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