Can I Bridge???

[Intrepid90]

ok, so i have:

2-12 JVC CS-GS5120

Sony XM-ZR604 Xplod 4 Channel 600 watt Car Amplifier

The Subs are in a profesinal built dual seperated box

im wondering if i should drill a hole through the seperating wall and bridge the speakers and if so can someone give me some instructions on how to bridge thnx for your time guys

Don ps i had posted the urls with specs on these items but it wouldent let me post with urls so you can use the model numbers to get the specs if youd be so kind thnx

Click to read more...

 

[Intrepid90]

110W x 4 Max Power into 4 Ohms

150W x 2 (at 2 Ohms) + 300W x1 (at 4 Ohms) Max Power

60W x 2 RMS into 4 Ohms

65W x 4 RMS into 2 Ohms

High Level Sensing Power On

80Hz High Pass filter with -12dB/Octave Slope

80Hz Low Pass Filter with -18dB/Octave Slope

MOSFET Power Supply

RCA & speaker level inputs

Line level thru-put

CEA-2006 Power Compliant

Output Power:

CEA Rating: 60W x 4

DIN 45500 Rating (@ 14 V, THD 0.5 %)

4 ohm: 4 x 60W

2 ohm: 4 x 65W

Rated/THD (@ 14.4 V, 20 Hz - 20 kHz)

4 ohm: 4 x 60W / 1.0% (14.4V, 20 - 20kHz)

2 ohm: 4 x 65W / 0.1% (14.4V, 20 - 20kHz)

Maximum (@ 14.4 V)

4 ohm: 4 x 110W

2 ohm: 4 x 150W

Input:

Low Pass Filter: 80Hz

LPF Roll Off Rate: -18dB/oct

Subsonic High Pass Filter :: 80Hz

Input sensitivity: 0.3 - 6Volts

Output:

Frequency Response: 5Hz - 50kHz

Tolerance: +0 / -3dB

Total Harmonic Distortion (@1 kHz): 0.005%

CEA SN Ratio: 97dB

Min Load Impedance/Ch: 2 ohm

General:

Current drain (@ Rated Power - 4?): 33 Amps (at 4 ohm)

Weight (approx.)(kg): 3.1

Dimensions (WxHxD in mm) approx: 396x55x256

Speaker specs

Subwoofer CS-GS5120

Cone Size 30 cm (12")

Cone Type

Hybrid Fiber Olefin Diaphragm Yes

Frame Stamped Steel / Polish Silver

Surround High Density Foam

Terminals Gold-Plated Screw

Frequency Response 25 - 2,000Hz

Power Handling Capacity (Max. music power) 800W

Power Handling Capacity (RMS power) 250W

Impedance (ohms) 4

Sound Pressure Level 88dB

Weight

Mass 3,900g (8.6lbs)

Magnet Mass 1,106g (2.5lbs)

Mounting Rear/Box

Mounting Depth 140.6 cm (5-9/16")

12" SubwooferMax. Music Power: 800W250 Watts RMS PowerHigh Density Foam EdgeGold-Plated Screw Terminals39 Oz. Strontium MagnetImpedance: 4 Ohms

 

[keep_hope_alive Premium Member]

Thanks for the specs.

To bridge, follow the instructions on the amp owners manual. Bridge channels 1&2 to the first sub, gives you 300W at 4 ohms. Bridge channels 3&4 to the second sub, gives you another 300W at 4 ohms. You do not want to put a hole in the divider between the subs.

Note that you may need all four RCA inout to be filled on the amp, a y-adapter can let you do this.

 

[Intrepid90]

thnx for the response , i checked my ownsers manual and it dosent sayanything about bridging, so i buy 2 y splitters once for each end of the rca ables i have right, and if i dont drill a hole how am i ganna connect the wire.................. im loist plz help

 

[audioholic 5,000+ posts]

thnx for the response , i checked my ownsers manual and it dosent sayanything about bridging, so i buy 2 y splitters once for each end of the rca ables i have right, and if i dont drill a hole how am i ganna connect the wire.................. im loist plz help

Read what he said again. He told you to bridge channels 1 & 2 to one of the subs, and channels 3 & 4 to the other sub. You do not need to wire the subs together, no hole is necessary.

 

[keep_hope_alive Premium Member]

I recind my statement, that amp is 3-channel only. Not an amp for your two subs.

http://pdf.crse.com/manuals/3214760111.pdf

You can see bridging in speaker system 2. For that amp, you must wire the subs in stereo, on rear channels 3&4 only. Channels 1&2 are for your speakers. You'll be grossly under powering the subs. Don't expect much out of them.

Get a different amp, made for subs, class D preferably.

 

[Intrepid90]

What......... when i bought it it said 4channel amp how is it only 3.....

 

[audioholic 5,000+ posts]

What......... when i bought it it said 4channel amp how is it only 3.....

He's saying only two of the channels can be bridged (making it a 3-channel amp). Unlike keep_hope_alive, Im too lazy to look up the specs on your amp, so Im just the interpreter here.

 

[keep_hope_alive Premium Member]

lol. thanks. apparently i need an interpreter!

i've learned that entry level Sony amps are quite cheap and the manuals poorly written. They have tricked me before when I assumed they had basic features common to most amplifiers.

you have a 4 channel amplifier. you can bridge the rear channels to make it a 3-channel amp. i see nothing that says you can bridge both front and rear to make it a 2 channel amp. only two of the channels are designed to power subs due to the internal design limitations and LPF availability. the manual says nothing about the front channels being bridgeable, i don't know if they are.

I recommend you get a different amp to run your subs, preferably a Class D mono amp that is made for subs.

I do not recommend you drill a hole between dividers. have wire from each sub land on a speaker terminal for each side of the box. that way you can externally wire them as you see fit. If you do want to internally parallel the subs and have only one speaker wire terminal, you must make the hole as small as possible to fit the wire then seal the hole. if you use silicone or liquid nails, you cannot leave your subs installed for a few days as the fumes will eat away at the glues used in the sub. bad stuff. if you do internally parallel them, make the parallel connection at the speaker terminal - make sure all connections are solid and no internal shorting is possible - i.e. no bare copper strands are visible at any connection.