Reply
 
LinkBack Thread Tools Display Modes
Old 10-30-2006   #1
 
FoxPro5's Avatar
 
Banned
Join Date: Feb 2006
Location: Now
Posts: 3,903

Rep Power: 0 FoxPro5 will become famous soon enoughFoxPro5 will become famous soon enoughFoxPro5 will become famous soon enoughFoxPro5 will become famous soon enoughFoxPro5 will become famous soon enoughFoxPro5 will become famous soon enough


iTrader: (30)



Default Eclipse Balanced Line Adaptor (BLA)

Here is my experience using the BLA with the 8053 HU.

As it stands, the 8053 is capable of putting out a balanced 16v signal. It does so by utilizing both positive and negative analog outputs for each channel. Since it has 3 channels (Front, Rear, and Non-Fader) it has two RCA outs for each, or 6 pairs of RCA preouts. One pair is positive, one pair is negative. Ideally this HU (and also the 8061) would be used with amps that accept analog balanced inputs. But, since most amps don't accept balanced imputs the Eclipse engineers created the BLA. Some amps that do accept balanced inputs via a 6-pin din input are Soundstream, Zapco, Coustic, Kenwood and others.

In terms of votage, the BLA produces 10v max (see specs). I know this is kind of difficult to understand, so let me explain it to the best of my knowledge. Since most amps don't accept balanced inputs, the BLA actually takes the balanced 16v input from the HU and converts it into an UNBALANCED 10v output to the amplifier. If you just run your standard RCA's off the HU preouts, then you get an 8v UNBALANCED signal. So, you might be asking yourself, why would I even run the BLA just to get two more volts??

The answer to that question is noise cancellation. Since cars tend to be noisey and have long RCA runs from the HU back to the amps, the Eclipse engineers brought high votage balanced outputs that can be found in high-end home audio arena to car audio. The BLA uses a circut that polarizes the singnal and in doing so sends nice and clear music to the amps (see the notes from the manual).

So, by the time the signal gets to the amp - after the BLA magic - you have a noise free signal (accoring to Eclipse!). And you also get an addtional 2v over what you'd normally get from the HU alone. Since Eclipse decks use low output impedance in their head units, the BLA helps magnify the effect of all three facets of a clean signal: balanced, high votage, and low impedance. It's all about preventing the signal from degenerating on it's way to your speakers.

Personal comments
I really like having the high voltage signal. Some may argue that it doesn't matter if your HU puts out 2v or 20v....the amplifier's gain sensitivity can make up for it. In my experience the strong signal is a major benefit to my sound system.

Since installing the BLA, I have not had to set the gains on any amp I've used so far (about 10 of them or so). It's nice to be able to turn the volume all the way up (80/80) and not hear distortion. Now I've never put my system on a scope, so I don't know if it is clipping or not at max volume, but I've heard that it won't clip. To my ears, it's not.

So basically the way I set my gains is by using either the HU itself or my processor to level match the drivers. I've done it by playing sine waves and measuring voltage with a DMM, but I've found my ear works just as well. I don't beat the crap out of my system, so I think I'm on the safe side. I've never blown a driver yet [knock on wood].

Pros
- Improved S/N ratio
-Clean, high voltage signal
-Having the back of your HU essentially 6" away from your amps.
-No need for RCA's between the BLA ouputs and the amp (if you can get the it close enough)...except for the non-fader channel.

Cons
-Running 6 pairs of RCA's to the BLA I suggest you find very thin RCA cable for this job!!
-The Front and Rear ouputs come off the unit and are the standard male RCA plug. The Non-fader output is on the other side of the unit and you have to have a pair of male-male RCA's for it. Never understood this.
- You have to provide B+, grnd, and remote turn on leads. Kind of a PITA.
- The 10v output could possibly clip some amps. You never really get 10v on a consistant basis as that number is in reference to max.

Summary
Aside from being a PITA to set up, it's really nice to have virtually noise free delicious SQ from the 8053 piping hot for your favorite amp! If your system is noise free to begin with, consider yourself lucky and don't buy this piece of equipment.

Here are the specs for the BLA (37601):
Supply Voltage: 13.8V DC (10.8 ~ 15.6V)
Current Consumption Approx: 0.25A max
Frequency Response: 20 ~30.000Hz, ±2dB
Distortion: 0.005% (1Hz, 1V)
S/N Ratio: 106dB (IHF-A network)
Input Impedance: 12kΩ
Output Impedance: 220Ω
Max. Output Voltage: 10V (1kHz)
Common Mode Rejection: 60dB (1kHz)
Dimensions (W × H × D): 6.14˝ × 1.50˝ × 1.97˝ (156 × 38 × 50mm)
Weight: 0.72lbs (0.33kg)

From the manual:
In professional audio the preferred method ofsending an audio signal from one component to another is balanced audio delivery. Balanced line outputs virtually eliminate the possibility of noise in an audio system. “Noise” is defined as electrostatic interference, usually radiated from
wires and cables or other components which can filter into a sound system and degrade audio quality. Compared to standard audio cable, which
carries noise along with the audio signal to the amplifier, a balanced output uses two oppositely polarized wires to carry the audio signal. If noise is introduced into the system, it will appear on both audio signals. At the receiving end is a special “Balanced Line Adapter.” This “Balanced Line
Adapter” effectively cancels out the noise and sends only the audio signal to the amplifier.

Last edited by FoxPro5; 10-31-2006 at 08:16 AM..
FoxPro5 is offline   Reply With Quote
Old 11-06-2006   #2
 
DIYMA freshman
Join Date: Oct 2006
Location: Tx
Age: 31
Posts: 10

Rep Power: 0 nablis will become famous soon enoughnablis will become famous soon enoughnablis will become famous soon enoughnablis will become famous soon enoughnablis will become famous soon enoughnablis will become famous soon enough


iTrader: (0)



Default Re: Eclipse Balanced Line Adaptor (BLA)

Im going to be using this with my 8053 when I move my system to my new car. Thanks for the review.
nablis is offline   Reply With Quote
Old 11-14-2006   #3
Guy
Upgrade Your Membership!
 
Guy's Avatar
 
DIYMA Novice
Join Date: Feb 2006
Location: Wet or Dry
Posts: 385

Rep Power: 110 Guy will become famous soon enoughGuy will become famous soon enoughGuy will become famous soon enoughGuy will become famous soon enoughGuy will become famous soon enoughGuy will become famous soon enough


iTrader: (26)



Default Re: Eclipse Balanced Line Adaptor (BLA)

Thank you for an excellent write-up.
If you have some input to help me understand the balanced signal mysteries, feel free to respond in my thread in General Discussion.
I am a big Eclipse fan, and I agree with your high voltage signal experiences.
Guy is online now   Reply With Quote
Old 11-15-2006   #4
DIYMA 500 Club
 
cvjoint's Avatar
 
DIYMA Addict
Join Date: Mar 2006
Location: Californication
Posts: 4,329

Rep Power: 149 cvjoint will become famous soon enoughcvjoint will become famous soon enoughcvjoint will become famous soon enoughcvjoint will become famous soon enoughcvjoint will become famous soon enoughcvjoint will become famous soon enough


iTrader: (16)



Default Re: Eclipse Balanced Line Adaptor (BLA)

I guess they really did a half-assed job on my cd7000. I would trade that stupid gps for balanced any day.

2001 Honda S2000
Head: Pioneer P99 + Samsung Note 3
Amplifiers: 3,000w+ Zeff class G/H power
MMT 2-way: Aurum Cantus AST2560 Air Motion Transformers, dual Scan Speak Revelator 12M, dual Tympany LAT700
cvjoint is offline   Reply With Quote
Old 12-01-2006   #5
 
DIYMA Novice
Join Date: Apr 2006
Location: Ohio
Age: 39
Posts: 449

Rep Power: 109 Oak244 will become famous soon enoughOak244 will become famous soon enoughOak244 will become famous soon enoughOak244 will become famous soon enoughOak244 will become famous soon enoughOak244 will become famous soon enough


iTrader: (1)



Default Re: Eclipse Balanced Line Adaptor (BLA)

GRRR thanks for this write up. I have the BLA to go with my 8053 that I have yet to install. Wouldn't you know I just installed my new RCA cables tonight. Now I see I am 3 short lol Guess I better order right away so I can finally get my car back in one piece. At least with the 3 I have I can mount everything, and just add the last 3 later. I had planned to have this all wired by Sunday lol oops.

System was stolen!
Oak244 is offline   Reply With Quote
Old 12-01-2006   #6
 
FoxPro5's Avatar
 
Banned
Join Date: Feb 2006
Location: Now
Posts: 3,903

Rep Power: 0 FoxPro5 will become famous soon enoughFoxPro5 will become famous soon enoughFoxPro5 will become famous soon enoughFoxPro5 will become famous soon enoughFoxPro5 will become famous soon enoughFoxPro5 will become famous soon enough


iTrader: (30)



Default Re: Eclipse Balanced Line Adaptor (BLA)

You also need two pairs of female-female barrel connectors for the Front and Rear outputs if the BLA can't reach the amps. And in this case you need 3 more pairs of RCA's to go from the BLA to the amp. If you can reach, than you still need another pair of RCA's for the Non-fader output.

PITA but worth it I guess?
FoxPro5 is offline   Reply With Quote
Old 12-01-2006   #7
 
DIYMA Novice
Join Date: Apr 2006
Location: Ohio
Age: 39
Posts: 449

Rep Power: 109 Oak244 will become famous soon enoughOak244 will become famous soon enoughOak244 will become famous soon enoughOak244 will become famous soon enoughOak244 will become famous soon enoughOak244 will become famous soon enough


iTrader: (1)



Default Re: Eclipse Balanced Line Adaptor (BLA)

Quote:
Originally Posted by B-Squad
You also need two pairs of female-female barrel connectors for the Front and Rear outputs if the BLA can't reach the amps. And in this case you need 3 more pairs of RCA's to go from the BLA to the amp. If you can reach, than you still need another pair of RCA's for the Non-fader output.

PITA but worth it I guess?
Yes I already have all that. I just missed that the object here was to have balanced RCA's lol ooops

System was stolen!
Oak244 is offline   Reply With Quote
Old 09-07-2011   #8
KP
Bulk Sales Pass
Upgrade Your Membership!
 
KP's Avatar
 
DIYMA Regular
Join Date: Nov 2005
Location: Ala-BAMA
Posts: 935

Rep Power: 119 KP will become famous soon enoughKP will become famous soon enoughKP will become famous soon enoughKP will become famous soon enoughKP will become famous soon enoughKP will become famous soon enough

Send a message via AIM to KP

iTrader: (37)



Default Re: Eclipse Balanced Line Adaptor (BLA)

Back from the dead...........

So if someone wanted to run this deck balanced into a processor with XLR in's, how would you do that?
KP is offline   Reply With Quote
Old 04-25-2012   #9
 
DIYMA freshman
Join Date: Mar 2012
Location: Pittsburgh, PA
Posts: 17

Rep Power: 0 XtantFreak will become famous soon enoughXtantFreak will become famous soon enoughXtantFreak will become famous soon enoughXtantFreak will become famous soon enoughXtantFreak will become famous soon enoughXtantFreak will become famous soon enough


iTrader: (0)



Default Re: Eclipse Balanced Line Adaptor (BLA)

Anyone have a BLA, 37601, available or know where I can find one?
XtantFreak is offline   Reply With Quote
Old 04-25-2012   #10
 
DIYMA freshman
Join Date: Feb 2009
Location: Chicago
Posts: 164

Rep Power: 71 dogsbark26 will become famous soon enoughdogsbark26 will become famous soon enoughdogsbark26 will become famous soon enoughdogsbark26 will become famous soon enoughdogsbark26 will become famous soon enoughdogsbark26 will become famous soon enough


iTrader: (0)



Default Re: Eclipse Balanced Line Adaptor (BLA)

This conversation took place in 2006 Mr. Freak.

Welcome to the forum.

'89 BMW 325iX | Focal 130CVX Polyglass

Trying to figure out CD43 head unit and ESX 120.4/475.1 Lukebox install
dogsbark26 is offline   Reply With Quote
Old 05-13-2012   #11
 
DIYMA freshman
Join Date: Dec 2008
Location: CA
Posts: 4

Rep Power: 0 Lexluther will become famous soon enoughLexluther will become famous soon enoughLexluther will become famous soon enoughLexluther will become famous soon enoughLexluther will become famous soon enoughLexluther will become famous soon enough


iTrader: (2)



Default Re: Eclipse Balanced Line Adaptor (BLA)

Quote:
Originally Posted by XtantFreak View Post
Anyone have a BLA, 37601, available or know where I can find one?

I was just gonna put mine up for sale with an CD8053 both BNIB from my closet collection of rare new audio gear.
Lexluther is offline   Reply With Quote
Old 05-14-2012   #12
 
nitrofish72's Avatar
 
DIYMA freshman
Join Date: Jul 2009
Location: Bay Area, Ca
Age: 42
Posts: 100

Rep Power: 66 nitrofish72 will become famous soon enoughnitrofish72 will become famous soon enoughnitrofish72 will become famous soon enoughnitrofish72 will become famous soon enoughnitrofish72 will become famous soon enoughnitrofish72 will become famous soon enough


iTrader: (28)



Default Re: Eclipse Balanced Line Adaptor (BLA)

Love the Eclipse 8053. I think the 37601 is a waste of $.
nitrofish72 is offline   Reply With Quote
Old 05-28-2012   #13
 
DIYMA freshman
Join Date: Mar 2012
Location: Pittsburgh, PA
Posts: 17

Rep Power: 0 XtantFreak will become famous soon enoughXtantFreak will become famous soon enoughXtantFreak will become famous soon enoughXtantFreak will become famous soon enoughXtantFreak will become famous soon enoughXtantFreak will become famous soon enough


iTrader: (0)



Default Re: Eclipse Balanced Line Adaptor (BLA)



Lexluther. Email sent
XtantFreak is offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Alpine 9831, Pioneer P880, Eclipse 8053 ArcL100 Member Reviews & Product Comparisons 10 10-11-2009 02:15 PM
FS: Eclipse Balanced Line Adaptor (BLA) for 8053 HU FoxPro5 Car Audio Classifieds 4 01-18-2007 02:08 PM
Balanced signal processing Guy Technical & Advanced Car Audio Discussion 51 11-25-2006 10:58 AM
F/S and WTT: My System Eclipse Arc Peerless MBQuart LiquidClen Car Audio Classifieds 10 09-20-2006 10:30 PM
FS: Mint Eclipse 8053, Knob Remote. demon2091tb Car Audio Classifieds 5 08-14-2006 01:28 PM

» Amps
A/d/s/
Advent
Alphasonik
Alpine
American Bass
ARC Audio
Atomic
Audio Art
Audio Gods
Audiobahn
Audiocontrol
Audiopipe
Audison
Aura
Autotek
Avionixx
Bazooka
Beyma
Blaupunkt
Boss
Boston Acoustics
Bravox
Cadence
Cascade (CAE)
CDT Audio
Cerwin Vega
Clarion
Clif Designs
Concept
Coustic
Critical Mass
Crossfire
Crunch
DB Drive
DC Audio
DC Power
DEI
Denon
Diabolo
Diamond
Digital Designs
Directed
DLS
Dual
DYnamat
Dynaudio
Earthquake
Eclipse
Elemental Designs
ESX
Eton
Farenheit
Fi Car Audio
Focal
Fusion
Genesis
Ground Zero
Hafler
Helix
Hertz
Hifonics
Hushmat
Image Dynamics
Infinity
Interfire
JBL
Jensen
JL Audio
JVC
Kenwood
Kicker
Knu Konceptz
Kole Audio
Kove Audio
Lanzar
Lightning Audio
Linear Power
MA Audio
Magnat
Marantz
Massive Audio
MB Quart
McIntosh
Memphis
Metra
Milbert
MMATS
Mobile Authority
Morel
MTX
Nakamichi
Niche Audio
O2 Audio
Ohio Generator
Optima
Orion
Oxygen Audio
OZ Audio
PG Audio
Phase Linear
Phoenix Gold
Pioneer
Polk
Power Acoustik
Powerbass
Powermaster
Precision Power
Profile
Pyle
Pyramid
RadioShack
Rainbow
Rampage
RE AUdio
Rockford Fosgate
Scanspeak
Scosche
Seas
Sony
soundstream
Sparkomatic
SPL Dynamics
Stinger
Sundown Audio
Swiss Audio
Targa
TC Sounds
TREO Engineering
TRU
Tsunami
Ultimate
US Acoustics
US Amps
Velodyne
Vifa
Viper
Visonik
Xtant
Zapco
Zed Audio
Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 10:39 AM.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Powered by vBadvanced CMPS v3.2.3

Ad Management by RedTyger

Meet Our Team | Forum | Privacy and Rules | Advertise | Archive | Search | Contact Us

Home | User CP | Members List | New Posts | ITrader | Faq | Post Spy