I just got lucky, a mistake I made had no consequence, but it certainly could have.
I researched a lot of vintage preamps, I needed shallow depth to sit on top of a bookcase. Luxman stood out.
ALL the Vintage Luxman Tube Preamps had pre-out/main-in and/or a tape/processor loop. Then I crossed path with a very good deal on a current Luxman Tube Integrated Amp: SQ-N150. It has both MM and MC stages built in, oh boy!
Only 10 wpc, and the Wharfedale bookshelf speakers are only 87 efficiency: that’s both the lowest power and lowest efficiency speaker I ever tried.
Solution: pre-out to Velodyne self-powered sub, remove the need to amplify low bass. Both the Luxman 10 wpc and bookcase speakers would have a much easier job.
Offer accepted, delivered in 2 days!
Arrived, cables in hand. NO pre-out/main-in. No tape out/in or processor loop, just in/speaker wires out. Oh you dummy, how the hell could you miss this?
Some Luck: Sub allows line in/out OR what I am doing: speaker wires in/out. Amp still amplifies low bass, the bookcase speakers only get a break, the sub does the low bass.
I had the Luxman hooked up downstairs with my very efficient horns and 15" woofers. Very nice, but would never play loud live levels down there.
The REAL LUCK: 10 wpc is enough volume in this small office with no clipping occurring.
Whew! I actually printed the circuit diagram, was considering having Audio Classics add a pre-out/main-in loop. Goodbye 3 Year Warranty!
a lesson for the future, IF I can remember.
I researched a lot of vintage preamps, I needed shallow depth to sit on top of a bookcase. Luxman stood out.
ALL the Vintage Luxman Tube Preamps had pre-out/main-in and/or a tape/processor loop. Then I crossed path with a very good deal on a current Luxman Tube Integrated Amp: SQ-N150. It has both MM and MC stages built in, oh boy!
Only 10 wpc, and the Wharfedale bookshelf speakers are only 87 efficiency: that’s both the lowest power and lowest efficiency speaker I ever tried.
Solution: pre-out to Velodyne self-powered sub, remove the need to amplify low bass. Both the Luxman 10 wpc and bookcase speakers would have a much easier job.
Offer accepted, delivered in 2 days!
Arrived, cables in hand. NO pre-out/main-in. No tape out/in or processor loop, just in/speaker wires out. Oh you dummy, how the hell could you miss this?
Some Luck: Sub allows line in/out OR what I am doing: speaker wires in/out. Amp still amplifies low bass, the bookcase speakers only get a break, the sub does the low bass.
I had the Luxman hooked up downstairs with my very efficient horns and 15" woofers. Very nice, but would never play loud live levels down there.
The REAL LUCK: 10 wpc is enough volume in this small office with no clipping occurring.
Whew! I actually printed the circuit diagram, was considering having Audio Classics add a pre-out/main-in loop. Goodbye 3 Year Warranty!
a lesson for the future, IF I can remember.