


Connection Best BT4 250 2.5m 8.2 ft 4 Channel Car RCA Amp Cable Lead
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The Connection Best BT4 250 is a 4-channel, competition-grade RCA interconnect cable, 2.5 m (8.2 ft) long, from the Connection by Audison BT series. It connects a head unit or processor to a car amplifier, with double aluminium shielding and twisted pair conductors delivering over 100 dB noise rejection.
This listing is the 2.5 m version. The BT4 is also available in 5.5 m (18 ft).
Key specifications
- Model: Connection Best BT4 250
- Channels: 4
- Length: 2.5 m / 8.2 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 250
A competition-grade 4-channel RCA interconnect from Connection by Audison, designed to deliver clean, interference-free signal from your head unit to your amplifier. Length: 2.5 m (8.2 ft). Also available as the 6-channel BT6 250 at the same length.
Connection by Audison
"BT" series high efficiency signal cables
- SOFT TOUCH™ matt black jacket for a highly flexible cable.
- 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 with built-in remote conductor for easy 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 250 |
| Country of Manufacture | China |
More specs
| |
What's Included
- Best BT4 250 2.5 m/8.2 ft.
Connection
About the Connection BT4 250
From our tech experts at CEN
The Connection Best BT4 250 is a competition-grade 4-channel RCA interconnect cable from Connection by Audison, 2.5m (8.2ft) long. It connects a head unit or processor to a car amplifier, with CDAS™ double aluminium shielding and WTP™ twisted pair conductors delivering over 100dB noise rejection. Platinum satin machined metal contacts and a tug-proof sealed internal connection add reliability.
Who it suits
This cable suits anyone fitting a 4-channel amplifier who wants interference-free signal. For longer cable runs, the Connection Best BT4 550 offers 5.5m of reach. If you need 6 channels at 2.5m, consider the Connection Best BT6 250.
Our tech experts advise
Measure your cable run from head unit to amplifier before ordering; 2.5m suits most compact and medium-sized cars. The built-in remote turn-on wire saves running a separate conductor during installation. Car audio fitting is priced per vehicle — contact us about installation in Nottingham.
Explore the full Connection range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Connection
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Frequently Asked Questions
Q: How long is the Connection BT4 250 RCA cable?
A: The BT4 250 is 2.5 m (8.2 ft) long.
Q: How many channels does the BT4 250 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 250 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.



























