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Spinnergeoff

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  1. Further information: These were originally designed to run two large 15" three-way loudspeakers (4.7ohm) which were the business end of the USA made Allen church organs. They are 117V units so you'll need a dual step-down transformer. I have been running them quite happily on a 500w dual output GenPower ex ebay which sells for under $50. I've put them on a hardwood plinth with Cypress Pine dress panel to house the added binding posts. Each has an output level control, and I've been running them at about 4 out of ten! They are gutsy and very nice, second only in my collection of amplifiers to the vintage McIntosh 2100. I'll retain another pair of these for myself since I've managed to source some more! Freight is at buyer's cost and risk, ask about this - or any other questions you may have. Photos: PLEASE READ If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you don't include photographs of the actual item being sold, your ad will not be approved You understand that upon successful sale of your item it is expected you pay Seller's Fees. - if you have previously sold items and not made a contribution, your advertisement may not be approved.
  2. Further information: Affordable top end from Marantz. Smooth performer, 60w x 2 into 8 ohms, very heavily built (15Kg) and utterly charming presentation with glowing temperature gauge and gold remote. Has MM/MC phono stage and can also be used as pre-amp or use the pre-out for a subwoofer, or to bi-amp. Freight at buyer's cost and risk, ask about this. Photos: PLEASE READ If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you don't include photographs of the actual item being sold, your ad will not be approved You understand that upon successful sale of your item it is expected you pay Seller's Fees. - if you have previously sold items and not made a contribution, your advertisement may not be approved.
  3. The endless repetition of this LP vs. Digital argument might stop one day. Why CDs May Actually Sound Better Than Vinyl - LA Weekly
  4. Thanks Fred, that looks to be exactly what I need - and I got the English version of the page up and printed! Loved this bit: "In conclusion, it must be stated that OA-6 Type 2 is a very imaginative creation with a lot of the famous "bumblebee escape" - you simply can not do that, but it still plays. For the true Carlsson nerd, it is thus the most eccentric Carlsson you can have. Most daring, innovative and against the current. Reluctantly, I must admit that you can also listen to music in it, for a long time and with pleasure."
  5. When I got these they were water damaged and the electronics were a no-go area. If anyone knows how to fix those "energisers" (a sort of amplifier) let me know, but they were a unique design and I haven't been able to find a circuit diagram despite lots of searching. It's not a common model, although the basic driver components were fairly normal for that era at Sonab. The top one I've swapped out for a foster! Anyway, I've made them useful - see the article at my website for the full story, and photos. Home Entertainment
  6. I have a pair of Mk.1 Dragon crossovers, but of course they were different drivers. The main thing to do is decide how far up the scale you want the woofers to go, and perhaps wire them in parallel with a feed from a .22mH inductor , and stick a 3uf capacitor on the tweeter. It's simple but should work until you get the full formula. I just did something similar with some twin 8" boxes with a centrally located horn loaded metal dome tweeter and they sound excellent. Cheers, Geoff
  7. Back in 2016 I bought this pair in need of work. They must have been a project of the AWA Engineering staff, perhaps in a similar way to the KEF's remake of the 105/2 advertised here recently in the shape of the PL301. The AWAa consisted of one downward firing tweeter with a cone for dispersion, a down-firing 8" bass at the bottom of the big box, and four oval midranges, two at the front and one on each side. The tweeters and bass drivers were all stuffed and the crossovers looked a fright with a mix of large inductors and trim pots, as well as the usual capacitors. I simplified the crossovers and found adequate replacement tweeters and woofers. At the end of the process I found them quite enjoyable to listen to, but looming rather large in the room! They had to be moved on, and they sold to someone in Melbourne. Packaging was a bit of a challenge, but was achieved, and the buyer seemed very pleased to get them. A unique project for me - if anyone has further info on them or has even seen another pair anywhere, do let us know.
  8. Further information: These are a unique design in my experience, having both forward and rear firing woofers, although one is biased more towards midrange. The Concert Series are probably best known for the Concert VII which had two 8” woofers and allegedly went down to 24Hz. The smaller Concert V has some audible output at 30Hz, which is remarkable for a speaker of this size and configuration, however I have altered the specs I picked up online to say 35Hz. Very solidly built and weighing in at 17kg, cute magnetic grilles (a few hardly noticeable holes in fabric) and this pair is generally in very good condition. Being a DIY speaker guy I had to fix a tweeter issue: one of the original SEAS metal domes was way down on output. I replaced both tweeters with a similar SEAS tweeter that fits exactly, but has a soft dome instead of the metal of the original. Sonically this is hardly noticeable, perhaps a little bit softer in texture, which many will prefer. I will include both original tweeters in the deal, for what that’s worth. Given the frequency range they operate over, and the 88dB rating for the Concert VII (no figure in the specs for the V that I found online), I’m guessing that these are also at or below 90dB efficient and will prefer a bit more than the basic 40w per channel of your average amp or receiver. They will work off those commonplace amps though, just may not have as much oomph in the bass and overall dynamics. If you can muster 60w or upwards, so much the better. Sound: certainly not the thin sound one online video suggests, but a smooth and easy listening presentation coupled to nice bass extension. Strangely there isn’t much info about them online. (The size won’t scare the wife, often a factor in speaker choices.) UPDATE: I'll withdraw these for the time being. I want to try them out in a few more locations. Specifications: System: 3-way, double chamber bass reflex Woofer: 1 × 6.6 inch compound mounted Midrange: 167mm (6 1/2") Dome Tweeter: 25mm (1") Rated Power: 110 W (160 W music) IEC Input Power: 55 W Frequency Range: 35-20,000 Hz Crossover Frequency: 150/4,000 Hz Impedance: 6 ohm Weight: 17 kg Dimensions (H x W x D): 920 x 286 x 313 mm Photos: PLEASE READ If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you don't include photographs of the actual item being sold, your ad will not be approved You understand that upon successful sale of your item it is expected you pay Seller's Fees. - if you have previously sold items and not made a contribution, your advertisement may not be approved.
  9. Julian "Cannonball" Adderley was one of the greats, it goes without saying. But I learned from the sleeve notes that his nickname originated in his youth and was actually Cannibal, owing to his huge appetite.
  10. Further information: A bit out there, but will suit someone. These were the power behind the Allen (USA) church organ speakers. They drove the 15" three way monster speakers (now sold) to high levels and across a full frequency range. They were said to be working at the time of removal from the church, but I have not tested them. They will need a solid, (two sockets) power down converter such as the Genpower sold on ebay for about $60 to 85 (depending on capacity) which convert 240V to 120. There are two power transistors in each amplifier labelled MJ4502, but I don't know the actual power output. I will be talking to the local Allen rep and may find out soon. Sold as-is for this low price; any further work and cabling I have to do would see that price double. I have included photos of the underside so the state of the circuitry can be seen - looks pretty good for 1970s vintage gear. Note added: I have the original step-down transformer which the buyer can have, but it does need rewiring - new input lead, and perhaps a power board to take these leads, which incidentally are still USA type. Photos:
  11. Further information: Nice and compact power amp, can be bridged but only if internal switches are set, not a job for first-timers perhaps. Rated at 70w x 2 into 8 ohms. Some mottling on top but cosmetics not bad. Ask about postage etc. Photos:
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