May 2018
M T W T F S S
« Apr    
 123456
78910111213
14151617181920
21222324252627
28293031  
>> Breadcrumb :/Tag:Bob Levi

Zesto Audio Andros Allasso Step Up Transformer

By | December 14th, 2017|Categories: Positive Feedback|Tags: , , , , |

Zesto Andros Allasso Step Up Transformer

The Zesto Audio Andros Allasso Step Up Transformer

Once upon a time, full-featured preamplifiers like the ARC SP-3 ruled the audio scene and contained a phono stage. Phono cartridges were high output MM or MI, and so the preamps of the day had only about 40 dBs of gain, max. Then along came the low output MC cartridge, and so was born the “Step-Up Transformer.” Most of them sucked (noisy) or were quite limited in impedance choices. All were expensive for the period.… Read the full article

Comments Off on Zesto Audio Andros Allasso Step Up Transformer

Premier Review of the Grado Epoch Mono Cartridge

By | November 27th, 2017|Categories: Positive Feedback|Tags: , , , , |

All components in BOLD are loaned; all components in standard face are owned by me.

LOUDSPEAKERS

Marten Bird Loudspeakers, Marten Duke 2 Loudspeakers, and REL Stadium III subwoofer.

ELECTRONICS

E.A.R. 324 phono preamplifier, two E.A.R. 890 amplifiers (ran as monos), E.A.R. 534 stereo amplifier, E.A.R. 912 Professional preamplifier, E.A.R. 834L tube line stage, E.A.R. HP4 headphone amplifier, Grado Battery headphone amplifier, and KingRex headphone amplifier.

SOURCES

Analog: E.A.R. Disk Master Turntable with two Helius Omega Tonearms.

Cartridges: Koetsu Rosewood Signature, London Reference and Grado Statement1.… Read the full article

Comments Off on Premier Review of the Grado Epoch Mono Cartridge

Unique Innovation Technology Perfect Music Purifier USB Digital Cable

By | November 27th, 2017|Categories: Positive Feedback|Tags: , , , , , |

All components in BOLD are loaned; all components in standard face are owned by me.

LOUDSPEAKERS

Marten Bird Loudspeakers, Marten Duke 2 Loudspeakers, and REL Stadium III subwoofer.

ELECTRONICS

E.A.R. 324 phono preamplifier, two E.A.R. 890 amplifiers (ran as monos), E.A.R. 534 stereo amplifier, E.A.R. 912 Professional preamplifier, E.A.R. 834L tube line stage, E.A.R. HP4 headphone amplifier, Grado Battery headphone amplifier, and KingRex headphone amplifier.

SOURCES

Analog: E.A.R. Disk Master Turntable with two Helius Omega Tonearms.

Cartridges: Koetsu Rosewood Signature, London Reference and Grado Statement1.… Read the full article

Comments Off on Unique Innovation Technology Perfect Music Purifier USB Digital Cable

Premier Review of the Kubala-Sosna Sensation Interconnects 

By | November 27th, 2017|Categories: Positive Feedback|Tags: , , , , |

All components in BOLD are loaned; all components in standard face are owned by me.

LOUDSPEAKERS

Marten Bird Loudspeakers, Marten Duke 2 Loudspeakers, and REL Stadium III subwoofer.

ELECTRONICS

E.A.R. 324 phono preamplifier, two E.A.R. 890 amplifiers (ran as monos), E.A.R. 534 stereo amplifier, E.A.R. 912 Professional preamplifier, E.A.R. 834L tube line stage, E.A.R. HP4 headphone amplifier, Grado Battery headphone amplifier, and KingRex headphone amplifier.

SOURCES

Analog: E.A.R. Disk Master Turntable with two Helius Omega Tonearms.

Cartridges: Koetsu Rosewood Signature, London Reference and Grado Statement1.… Read the full article

Comments Off on Premier Review of the Kubala-Sosna Sensation Interconnects 

Bob Levi Quickies: Bybee, UIT, and Pro-Ject

By | November 19th, 2017|Categories: Positive Feedback|Tags: , , , , , |

Plug-In Speaker Bullets (Crystal Series)

The very cool looking Bybee Bullets, handmade to perfection of aluminum, gold, and other special metals, are Jack Bybee’s best efforts and thinking in decades. Easy to install by just attaching the wire spade to the bullet, the integrated banana plug then fits securely into the speaker post. Jack Bybee feels that banana plugs are the best connection device out there, with the lowest distortion. He also thinks that that spades are the worst! 

The Bybee’s clean up Y= 1/F distortion.… Read the full article

Comments Off on Bob Levi Quickies: Bybee, UIT, and Pro-Ject

Grado Labs Prestige Black2 Phono Cartridge: A World Premier Review

By | November 3rd, 2017|Categories: Positive Feedback|Tags: , , , , , |

All components in BOLD are loaned; all components in standard face are owned by me.

LOUDSPEAKERS

Marten Bird Loudspeakers, Marten Duke 2 Loudspeakers, and REL Stadium III subwoofer.

ELECTRONICS

E.A.R. 324 phono preamplifier, two E.A.R. 890 amplifiers (ran as monos), E.A.R. 534 stereo amplifier, E.A.R. 912 Professional preamplifier, E.A.R. 834L tube line stage, E.A.R. HP4 headphone amplifier, Grado Battery headphone amplifier, and KingRex headphone amplifier.

SOURCES

Analog: E.A.R. Disk Master Turntable with two Helius Omega Tonearms.

Cartridges: Koetsu Rosewood Signature, London Reference and Grado Statement1.… Read the full article

Comments Off on Grado Labs Prestige Black2 Phono Cartridge: A World Premier Review

Parasound Halo JC 3 Jr. Phono Preamplifier by John Curl:  Premier Review

By | October 23rd, 2017|Categories: Positive Feedback|Tags: , , , , , , |

All components in BOLD are loaned; all components in standard face are owned by me.

LOUDSPEAKERS

Marten Bird Loudspeakers, Marten Duke 2 Loudspeakers, and REL Stadium III subwoofer.

ELECTRONICS

E.A.R. 324 phono preamplifier, two E.A.R. 890 amplifiers (ran as monos), E.A.R. 534 stereo amplifier, E.A.R. 912 Professional preamplifier, E.A.R. 834L tube line stage, E.A.R. HP4 headphone amplifier, Grado Battery headphone amplifier, and KingRex headphone amplifier.

SOURCES

Analog: E.A.R. Disk Master Turntable with two Helius Omega Tonearms.

Cartridges: Koetsu Rosewood Signature, London Reference and Grado Statement1.… Read the full article

Comments Off on Parasound Halo JC 3 Jr. Phono Preamplifier by John Curl:  Premier Review

Premier Review: Yuko Mabuchi Trio Live Concert Recording from Yarlung Records

By | October 6th, 2017|Categories: Positive Feedback|Tags: , , , , , , , |

All components in BOLD are loaned; all components in standard face are owned by me.

LOUDSPEAKERS

Marten Bird Loudspeakers, Marten Duke 2 Loudspeakers, and REL Stadium III subwoofer.

ELECTRONICS

E.A.R. 324 phono preamplifier, two E.A.R. 890 amplifiers (ran as monos), E.A.R. 534 stereo amplifier, E.A.R. 912 Professional preamplifier, E.A.R. 834L tube line stage, E.A.R. HP4 headphone amplifier, Grado Battery headphone amplifier, and KingRex headphone amplifier.

SOURCES

Analog: E.A.R. Disk Master Turntable with two Helius Omega Tonearms.

Cartridges: Koetsu Rosewood Signature, London Reference and Grado Statement1.… Read the full article

Comments Off on Premier Review: Yuko Mabuchi Trio Live Concert Recording from Yarlung Records

Unique Innovation Technology (UIT) Perfect Music Purifier (PMP) Interconnect Series: A Postscript

By | September 28th, 2017|Categories: Positive Feedback|Tags: , , , , , , |

Unique Innovation Technology Interconnect

Many of our readers will have read my earlier rave review of the Unique Innovation Technology (UIT) interconnects back in Positive Feedback Issue 92.

With some 18 meters of UIT Interconnect included in my two systems, I can now further report on the extraordinary performance of this under-$1000 per meter  interconnect development for audiophiles and music lovers. I found only two applications where I cannot recommend the UIT, while in all other significant applications UIT cables scored from excellent to superior.… Read the full article

Comments Off on Unique Innovation Technology (UIT) Perfect Music Purifier (PMP) Interconnect Series: A Postscript

Special Report: iQSE Disks from BybeeTech

By | September 24th, 2017|Categories: Positive Feedback|Tags: , , , , , , , , , , |

All components in BOLD are loaned; all components in standard face are owned by me.

LOUDSPEAKERS

Marten Bird Loudspeakers, Marten Duke 2 Loudspeakers, and REL Stadium III subwoofer.

ELECTRONICS

E.A.R. 324 phono preamplifier, two E.A.R. 890 amplifiers (ran as monos), E.A.R. 534 stereo amplifier, E.A.R. 912 Professional preamplifier, E.A.R. 834L tube line stage, E.A.R. HP4 headphone amplifier, Grado Battery headphone amplifier, and KingRex headphone amplifier.

SOURCES

Analog: E.A.R. Disk Master Turntable with two Helius Omega Tonearms.

Cartridges: Koetsu Rosewood Signature, London Reference and Grado Statement1.… Read the full article

Comments Off on Special Report: iQSE Disks from BybeeTech