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Convertor & Drivers
Signal Hi to low Convertor
HLC-01 is a high end hi-low signal convertor, which achieves optimal signal transmission by converting the speaker output signal from a head unit or another power amplifier into pure RCA signal, and then transmits it to the RCA input of the power amplifier (-10dB) without any distortion or other disturbances.
If the head unit is equipped with a BTL constituted power amplifier, the RCA signal converted by the HLC-01 will be transmitted as a balance line signal to the power amplifier.
HLC-01 High to low convertor  Connecting way No.1       Connecting way No.2
Input level (Max): 20 dB (25W/4ohm)
Output level: 0 dB
Size (WXLXH mm): 121.1X79.6X37.5
Blance line drivers
BLD-T451 is a very unique products for combining a source unit with RE 2 or RE 2.65 amplifier for the balance signal transmission in the car. It can directly convert the speaker out put signal into the balance line signal without using Hi-low convertor. Now when it has been impossible to convert a original head unit to another audio source unit for upgrading, BLD-T451 can easily accomplish the optimal sound circumstances without any distorsions and noises.

BLD-T451 specification

Max. input level: 20 dB ( 25W / 4 ohm )

Transmission impedance: 10 ohm

Balance line cable length:  5 m

Size WxHxDwithout terminals: 121.1 x 37.5 x 79.6 mm


BLD-T451 Connecting way 

BLD-A2142, T103 & T601 
There are 3 types BLD drivers available, two transformer types and one amplifier type. For its transformer a high end grade one is used for high quality signal transmission far beyond the grade of car audio. While, the amplifier type used also high end grade electric parts on its precise PCB can realize the optlmal signal converting and transmission.
BLD-A2142 is a high end balance line driver with a precision amplifier. It converts an RCA to the Balance line. Output balance signal can be transmitted through long distant cable without any distortions and noises. As the output terminal D-sub female connector is used on the end of balance line cable, and it can be inserted into the D-sub socket on the RE amplifier easily.
BLD-A2142 surely realizes the optimal signal transmission in the car inferior circumstances.
Note; BLD can be combined with only RE 2 and RE 2.65 which have the balance line input.
BLD-A2142 for RE 2
Input sensitivity: -18dBV (0.13V)
Max input level: +10dB (3.2V)
Signal cable length: 5~100m
Size (WXLXH mm): 121.1X79.6X37.5
BLD-A2142 for RE 2.65
Input sensitivity: -4dBV (0.6V)
Max input level: +12dB (4V)
Signal cable length* 5~100m
Size (WXLXH mm): 121.1X79.6X37.5



BLD-T601 & T103


BLD-T601 & T103 are high end balance line drivers with originally developed transformers. They convert an RCA line level signal to a balanced line level signal, able to be transmitted over long distances without any distortions, noises or signal loss. As the ouput terminal D-sub female connector is used on the end of balanced line cable. It can be easily inserted into the D-sub socket on the amplifier.


BLD-T601 and T103 ensure the original audio signal is optimally transmitted to power amplifiers in the car.


Note; BLD-T601 can be used only with RE 2, T103 can be used only with RE 2.65 balanced line amplifiers.


BLD-T601 for RE 2

Input sensitivity: +2dBV (1.2V)
Max input level: +15dB (4.5V)
Signal cable length: 5~100m
Transmission impedance: 600ohm
Size (WXLXH mm): 121.1X79.6X37.5
BLD-T103 for RE 2.65
Input sensitivity: +3.5dBV (1.5V)
Max input level: +20dB (10V)
Signal cable length: 5~100m
Transmission impedance: 10Kohm
Size (WXLXH mm): 121.1X79.6X37.5


BLD Connecting way (PDF)