Photo: Provided by Anders Eriksson, LTS
As all Carlsson fans know, the OA-52 is the top model in the 50-series. It is an upgraded version OA-52.2 and was Stig Carlssons favourite model in the long row of models. It was the speaker he worked with for half a decade in order to improve and refine it. Now it is time to present the model in its very best and perhaps final version, the further enhanced and upgraded OA-52.3, which was started to be manufactured in March 2003 in the Carlssonfabriken in Skillingaryd.
Here is a closer presentation of the new model:
NEWS
The new OA-52.3 includes a number of news compared to the previous model:
1. New finish. The new series is produced with wooden veneer with the following materials: beech, cherry, mahogany and black veneer.
2. New tweeter. The newly developed silk dome tweeter, Carlsson T11-oa is of course mounted on the OA-52.3. For a closer presentation of this element, please refer to the CarlssonPlanet News letter no. 20 on the site (Swedish only).
3. New filter. Internally rather extensive revisions of Stig Carlssons classical simple filter for OA-52.2 has been made. This has been done in order to give the speakers an even flatter frequency response and better phase linearity than its predecessor. At the same time the filters are equipped with even better components than earlier. Large expensive and well sounding capacitors in paper and oil from the Danish company Jensen. Also new exclusive copper foiled coils from Jensen. The Jensen capacitors are partly connected in parallel with the polypropylene based SCR/MKP capacitors, the outmost well sounding kind recommended by CarlssonPlanet.
4. New bass port. The edges of the bass ports are rounded, which in an elegant manner solved the chuffing noise distortion due to the heavy air movement in the bass tunnel. A very welcome modification for the enthusiasts!
SOUND
This is how the chairman of SSC, Lars Bäcklund describes the new OA-52.3: “You can play the OA-52.3 very loud. It provides, as few other speakers, an exciting feeling of live performance. It also provides an acoustical establishment as few other. OA-52.3 is a true Carlsson speaker in the highest class and the choice for many musicians.”
RESTORATION KITS
It is of course already possible to order restoration kits, transforming an older OA-52 pair to the new exquisite OA-52.3 model. The following kits are available:
- upgrading from OA-52 (the 1980’s model) with new Scan Speak bass 18W8545, new Carlsson T-11oa tweeter and new cross over filters Jensen paper based oil capacitors, Jensen copper foil coils and Teflon isolated solid core cabling. In addition special calibrated SD feet, wooden and aluminium details and damping blanket.
Price: 8.700 SEK
- upgrading from OA-52.2 with new T-11oa tweeters and new filter.
Price: 2.000SEK
CarlssonPlanet can guarantee that the latest upgrade “.3” is the best sounding OA-52. If you love your Carlsson speakers then this upgrade is the natural choice.
VENEERING OA-52-SERIES
The wooden veneer on older pairs of OA-52/.2 may today be more or less damaged. In association to the new upgrade kits for the 50-series, Carlssonfabriken has as an additional service decided to offer the owners the possibility to mount new veneer on their old worn out cabinets. It is however not for free, but for those hesitating there are some photographs available on the site, showing how nice it looks. What about the pictures on this page? It is a really good looking speaker.
VENEERING PRICES:
Re-veneering a pair of OA-52/.2:
Price: 5000 SEK
If you upgrade your speakers at the Carlssonfabriken and also want to upgrade the rear terminals, with the filter mounted according today’s production and repositioning of the box, the additional price would be: Price: 2500 SEK
All questions and orders regarding veneering should be directed to:
Carlssonfabriken/Larsen HiFi at
Telephone +46 370-70 900
larsen.hifi@telia.com
Photo: Provided by Anders Eriksson, LTS
TECHNICAL DATA CARLSSON OA-52.3
Principle: 2-way omni-directional bass reflex
Positioning: On the floor against a wall with damped floor and reflecting ceiling
Inner volume: 20 litres
Total volume: 32 litres
Bass tuning: 30 Hz
Measures: (B x H x D) 53 x 41 x 37 cm
Bass/midrange element: 7 inch/170 mm elements with carbon fibre treated paper cone, short-circuit (Scan-Speak 18W/8545)
Tweeter: New designed 25 mm silk dome (Carlsson T11-oa)
Filter: High-end-components like Jensen copper foil coils and Jensen paper oil capacitors
Internal cabling: Teflon insulated solid core acid free copper wire
Sensitivity: 89 dB
Impedance: 8 ohm
Crossover frequency: 2500 Hz
Manufactured in pairs with a left-hand and right-hand speaker,
With specially cali
brated vibration absorbing SD-feets, individual to each corner
Other: The loudspeaker is designed to reduce early room reflexes, and to provide a wide sound distribution characteristic including using the rooms bass boost to get a flat tone curve.
Finish: Book, cherry tree, mahogany and black veneer. May be specially ordered veneered or in selected colour.
Price year 2005: 18.000SEK
Per Gulbrandsen - Lead Editor
This page was last edited 2008-07-14 00:09:10 by Per