Connection Best BT4 550 5.5m 18 ft 4 Channel Car RCA Amp Cable Lead
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The Connection Best BT4 550 is a 4-channel, competition-grade RCA interconnect cable, 5.5 m (18 ft) long, from the Connection by Audison BT series. It connects a head unit or processor to a car amplifier, with double aluminium shielding, twisted pair conductors and over 100 dB noise rejection.
This listing is the 5.5 m version. The BT4 is also available in 2.5 m (8.2 ft).
Key specifications
- Model: Connection Best BT4 550
- Channels: 4
- Length: 5.5 m / 18 ft
- Noise rejection: over 100 dB
- Shielding: 110% twisted Mylar and double aluminium (CDAS™)
- Conductors: WTP™ winding twisted pair, balanced
- Remote: built-in extended remote turn-on wire
- Contacts: platinum satin ABS™ style machined metal
BT4 550
A competition-grade 4-channel RCA cable from Connection by Audison, designed for clean, noise-free signal transfer in demanding car audio installations. If you need more channels at this length, the BT6 550 is the 6-channel version.
Connection by Audison — "BT" series high-efficiency signal cables
- SOFT TOUCH™ matt black jacket — extremely flexible.
- POLYAMIDE POLYMER inner jacket protects the conductors.
- 110% TWISTED MYLAR AND DOUBLE ALUMINIUM shield rejects RFI and EMI.
- WTP™ (Winding Twisted Pair) balanced conductors reject low-frequency electromagnetic fields.
- CDAS™ (Cascaded Dual Aluminium Shield) eliminates radiated interference for noise-free signal transfer.
- OVER 100 dB noise rejection.
- PLATINUM SATIN ABS™ style machined metal contacts.
- EXTENDED REMOTE TURN ON WIRE — built-in remote conductor for easier installation.
- TUG-PROOF sealed internal connection for maximum reliability.
- MOULDED Y BLOCK protects conductors at the split point.
- "COMPETITION GRADE" performance.
Explore the full range in Connection RCA Cables.
Specification
| Type | Wiring |
|---|---|
| Series | Best |
| Article Number | BT4 550 |
| Country of Manufacture | China |
More specs
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What's Included
- Best BT4 550 5,5 m/18 ft.
Connection
About the Connection BT4 550
From our tech experts at CEN
The Connection Best BT4 550 is a 4-channel, competition-grade RCA interconnect cable, 5.5 m (18 ft) long, from the Connection by Audison BT series. It connects a head unit or processor to a car amplifier with over 100 dB noise rejection, CDAS™ cascaded double aluminium shielding, and WTP™ balanced twisted pair conductors. A built-in extended remote turn-on wire and tug-proof sealed connections are included.
Who it suits
This cable suits demanding car audio builds that require clean, noise-free signal transfer across four channels — for example, separate front, rear and subwoofer amplifier feeds. The 5.5 m length works well for most boot-mounted installations. For a shorter run, the BT4 250 (2.5 m) is available, or step up to the BT6 550 for six channels at the same length.
Our tech experts advise
Measure the full cable run from your head unit to the amplifier before ordering. The CDAS™ double aluminium shield is effective at rejecting RFI and EMI from modern vehicle electronics. Car audio installation is priced per vehicle; visit our car audio installation page for details.
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Frequently Asked Questions
Q: How long is the Connection BT4 550 RCA cable?
A: The BT4 550 is 5.5 m (18 ft) long.
Q: How many channels does the BT4 550 have?
A: It has 4 channels (four RCA connections at each end), suitable for four channels, for example front and rear pairs to a 4-channel amplifier.
Q: Does the BT4 550 include a remote turn-on wire?
A: Yes. It has an extended remote turn-on wire built into the cable, so you do not need to run a separate remote lead to the amplifier.
