Manley Labs Stereo Variable Mu Limiter Compressor with T-Bar Mod Option

If you're seeking a professional, high-quality, and reliable audio equipment, look no further than the Stereo Variable Mu Limiter Compressor with T-Bar Mod from Manley Labs. This innovative product is a dynamic signal processor that uses two single-pentodes tubes wired in triode for peak reduction and compression.

The tube circuit of this durable audio device is constantly re-biased by the vacuum tube rectified side-chain control voltages, resulting in a smooth change in gain. The T-Bar Mod offers the sound of the original Variable Mu, providing versatility and control in the recording process.

This product features Manley input and output transformers with nickel laminations in mu-metal cases, ensuring a flat frequency response from 20Hz-25KHz. It boasts fully differential ALL-TUBE circuitry using one each 5670, 5751 (or 12Ax7), 7044 (or 5687) & 12AL5 per channel.

The Stereo Variable Mu Limiter Compressor is equipped with independently regulated B+ and Heater supplies, a hard-wire BYPASS switch, and a stepped switch INPUT attenuator. It also features large illuminated Sifam meters and a stereo link switch.

This product is factory set for 100V, 120V, or 220-240VAC operation for the original destination country's mains voltage. It can be adjusted for operating mains voltage changeable with power transformer changeover switch and fuse value change.

The Manley Variable Mu Limiter Compressor is a trusted standard in mastering studios and has contributed to most hit records over the last decade. The unique 5670 dual triode is at the center of the peak-reducing and compression action, constantly being re-biased by the vacuum tube rectified side-chain control voltages.

The COMPRESS mode is soft-knee 1.5 to 1 ratio while the sharper knee LIMIT mode starts at 4 to 1 and moves to a more dramatic ratio of 20 to 1 when limiting over 12dB. The knee actually softens as more limiting is used.

The High Pass Side Chain mod comes stock on all Manley Variable Mu limiter/compressors since 12/2009, on both regular and mastering versions. This mod adds two switches to the front panel, one for each channel, so that when engaged, the side chain will not respond to frequencies lower than 100Hz.

The T-Bar Mod uses a pair of 6BA6 pentodes wired as single triodes to replace each dual triode 5670 (or 6386). This mod is the preferred system to use in the Manley Variable Mu for its ability to perfectly match each phase-halve section and each stereo set, and for its ability to select for low-noise and low-microphonic sets at a low cost.

In conclusion, the Stereo Variable Mu Limiter Compressor with T-Bar Mod from Manley Labs is a versatile, high-quality, and reliable choice for audio recording and production.