럭스만 중급기 CL-350 프리엠프와 M-1600 파워엠프 입니다.(ending)

럭스만사의 명기 프리파워 CL-350 M-1600 입니다. 보기드믄 기종 으로서 파워엠프와 프리 엠프 모두 만듬세 완성도 충실한 기기부품 탑재등 시대별 기기의 완벽함을 자랑하며 소리 역시 기본에 충실하며 부드러운 찰랑찰랑한 음색을 강조하여 대역폭이 적절해 듣기또한 아주좋습니다. 파워엠프의 게인조정이 가능하여 원하시는 증폭대애 맞춰서 사용하시는 편리함을 강조하였으며 프리엠프 역시 라인단마다 라인게인 조정단자가 지원되 원하시는 게인에 맞게 조정하여 사용할수 있습니다.  프리아웃이 2개 지원되며 5개의 하이레벨 조정 버튼 지원 밎 포노단 과 억스가 각각 2개 3개씩 지원됩니다. 개인적으로 350 프리엠프를 상당히 좋아하는 편이라 펌프질을 하자면. 300B나 KT88 6550등과 같이 중,저역대가 풍성하게 나오는 파워에 매칭하시면 부족한 고음부가 강화되며. 트렌지스터 프리엠프지만 매칭이 순조롭게 훌륭한 소리로 보답해줍니다. 파워엠프의 경우는 레벨메터 가 나름대로 크기에 비하여 큼직하게 달려있어 보는눈에 만족을 시켜주며  우드케이스와 은은한 실버판넬의 조합역시 고풍스럽 습니다. 외모와는 달리 뎀핑능력 이 좋으며 켄TR출력석을 사용 하여 음색역시 감칠맛나는 소리를 들려줍니다. 70~80년대 JBL 스피커나 탄노이 계열과도 매칭이 좋습니다. 전원 220V 이며  임피던스 8옴 파워엠프 체널당80w 스피커 2조지원가능 합니다. 보기드믄 잘만들어진 기종입니다. 우드케이스 의 생활감은 묻어있지만 그외의 전체적인 외관밎 내부 상태는 아주좋습니다.

LUXMAN   vintage audio

Luxman CL-350 control amplifier

General:

This pre-amplifier or control amplifier as Luxman decided to call it was built during the late 70’s. It was designed to match the M150 power amplifier and the similarly styled T-300 tuner. Its main features were the elaborate tone controls and its ability to connect to a variety of equipment. The specifications were not particularly awesome, even not in 1978. What you got for the money was a well-built piece of equipment.

Special futures:

Compared to modern equipment the CL350 has a couple of advantages that makes it quite unique. The amplifier has a very interesting back panel owing to the number of RCA connectors available. It supports two record players, three auxiliary inputs, two tape monitor sets, one microphone input and two sets of output terminals. And this was well before bi-amping became a trend!

Besides the RCA connectors the amplifier provides a DIN input/output connector for the first tape monitor channel and large jacks for the microphone input.

It is also a very practical instrument to use. There is a tape copy switch that allows copying between the two tape monitor circuits, in both directions, while listening to another input. There is also a "tone defeat" switch that bypasses the tone controls. The tone controls for bass and treble each have three selectable operating frequencies; the three frequencies are one octave apart. It provides 150, 300 and 600 Hz for the bass control and 1.5, 3 and 6 kHz for the treble control. The control knobs are split so they may be set separately for the left and right channels.

The amplifier also provides low and high cut-off frequencies. In an era of rumbling turntables and noisy cassette decks those controls were quite useful indeed.

Perhaps the neatest feature is the contour switch that is located on the top of the amplifier case itself; it is hidden from view by the wooden enclosure. This switch provides 0.6 dB gain, linear mode or 0.6 dB attenuation at 250 Hz. This is a very subtle control to adapt speaker behavior to the acoustical properties of the room.

Schematic:

Modifications:

The CL350 came out of the box with its mains power cord hardwired to the transformer. We lived in a house with noisy mains at that time and the pops and clicks were a nuisance. The power cord fed into the back of the amplifier through a cutout in the form of a standard mains connector. The cutout was blanked with a small piece of metal, with a hole to accommodate the cord. That was replaced with the smallest noise filter available.

During a check-up in 1989 two resistors in the power supply were replaced. That and the power indicator lamp were the only parts that have been replaced so far. The amplifier is in the same state as it left the factory.

Sound:

The CL350 is connected to a Quad 405 power amplifier. Some reports note that the 405 sounds dull; well it doesn’t when connected to the CL350. It is a lively combination well suited for classical music (e.g. chamber) at any level, while Pink Floyd requires (a lot) more power.

The small built-in phones amplifier (80 mW) is of good quality and easily drives modern headphones.

Hans Vlems  Netherlands