All systems go !
All systems go !
DRIVE UNITS BY MANUFACTURER:
XT25BG60-04
UK STOCK ITEM
Peerless version of: Scanspeak R2604/833000
This 25 mm dual ring radiator with centre phase plug has a low distortion response curve that extends effortlessly to above 40kHz. A double magnet system with tuned rear chamber yields an exceptionally low resonant frequency of just 589 Hz, which is a long way below the recommended crossover frequency - this tweeter is easy to use. The specially profiled 104mm diameter faceplate features recessed mounting holes for minimal reflection.
A full datasheet can be downloaded from the bottom of this page.
Resonant frequency (fs) | 589 Hz | Nominal impedance (Zn) | 4Ω |
Effective diaphragm diameter | 25 mm | DC resistance (Re) | 2.99Ω |
Ferrofluid ? Y/N | No | RMS power handling | 100 W |
Recommended crossover | 2.5 kHz 12dB | Faceplate diameter | 104mm |
Sensitivity (2.83V/1m) | 88.6dB | Cutout hole diameter | 74mm |
Peerless by Tymphany
I was looking for something to pair with the Monacor SPH6M that I got from Willys HiFi as while back.
These tweeters are very very nice. Not the prettiest to look at (matter of opinion) but sonically superb. Very easy to work with crossover wise and because the the low FS you can get away with crossing these pretty low (1.2K) with a third order filter, this helps a lot with off axis response.
I ended up with probably one of the flattest responses I've seen for a while and a speaker that is very accurate (response / phase wise).
The top end these tweeters provide is clear, crisp and detailed without ever getting aggressive or fatiguing, although that could just be the way I 'voiced' them. Either way, I have to say I prefer these to the Scanspeak D2606 or the Vifa D26NC which have always been be my go to tweeters.
Pairing with the SPH6M you end up with what could be a pretty good studio monitor.
If anyone is looking to do a DIY build with a tweeter that is easy to work with, this could be it.
Note: It's great to have a UK supplier providing good quality parts rather than having to go 'across the pond' to source stuff.
Thank you Willy's Hi Fi.
Thanks for the fantastic review !
Will & Caroline
Friendly technical support
40+ years in the trade
UK family run business
Excellent customer service
Quick dispatch
Has fixed the slight grainy sound on my old Mission 771s. The tweeter had a stain on the back suggesting the fluid had escaped. Make sure you release(unsolder) the coil wires before splitting the tweeter. Audax have replacement tweeters TM025C1 albeit 8 ohm which is another way to go.
Couldn’t be happier, more detail, more clarity. Vocals massively improved and less harsh sounding. Thanks Willys hifi.
Very flexible and easy to work with cable. Made up 6.5m cables shielded with some faraday tape and added PET cable sleeving outer and terminations of ChordOhmic bananas . After about 25hr ‘burn in’ compared with my NAC A5. IMO a better sounding cable, definitely better soundstage.
1990 Linn Index II LS120 Crossover and wiring upgrade.
Truly Outstanding performance upgrade flying in the face of conventional wisdom.
The resistor value is increased from 2.2 to 2.7 and is an official Linn Service 'performance' upgrade.
HF
C1 3.9uF Jantzen Superior z-cap
C3 1uF Mundorf MCap EVO Aluminium Oil
R1 Mundorf M-Resist 5W 2.7 Ohm 2% MOX
LF
C2 5.1 uF split
3.3 uF Mundorf MCap EVO Aluminium Oil
1.8 uF Jantzen Superior z-cap
Carded lambswool replacing original poly wadding. Increased weight replacing 132g ea. for 215g ea. This was weighed out in stages and determined by sonic performance.
Small amount approx 15cm sq of Bitumen foam panel placed in two pieces in base of cab. (leftovers from another project.)
Jantzen solid core speaker cable AWG 17/ 1.15mm stripped of PVC outer sheath to leave only high performance PE insulation. Doubled and twisted Star-Quad. 2.3mm
x2 400mm lengths ea.
Replace binding post steel nuts and locking nuts on back of PCB with copper nuts x8 and locktight. (steel nuts in signal path???= Nuts)
Remove all Plastic front panels and rubber securing bungs. Seal air holes in front baffle sockets. (Holes!)
Total cost £190.00.
Worth every penny! The cost of replicating this level of performance will be many, MANY times this amount. This understanding determined my budget. Happy to spend £200 upgrading on a gamble for the knowledge and experience. The results are very serious for this money.
I purchased these new in 1990 and paid £220.00. They were never highly regarded but always delivered a satisfying sound I never bored of even though Bass is not a strong point in this sealed design. Proximity to rear wall is everything here.
No previous experience with crossover upgrades. Never built a PCB. Very limited knowledge of electronics A beginner !
Every sonic element is vastly improved. Detail everywhere, Soundstage opened up. Depth, Clarity, Definition, Truly remarkable the level of performance these 'nothing special' loudspeakers are now delivering. They are being driven by Oppo 105 upgraded, John Sampson upgraded Musical Fidelity A1. All solid core power/interconnect/speaker cables.
This project was only completed 'confidently' with the kind, generous help and insights from Willys HIFI who supplied all the excellent Mundorf components.
Cannot thank Will enough for his patience and knowledge. My lack of knowledge and understanding was never a barrier to success only because Will was so helpful, enthusiastic and interested in my enquiries. Will cautioned against my extravagant choice of caps. The results could not be predicted and so a more responsible and cost efficient choice was Will's sagely recommendation. Trustworthy, Knowledgeable and Approachable. How refreshing. My choice was a gamble to push the limits and the budget, the results are beyond my hopes and expectations.
Highly commendable service and support. Outstanding in the Audio/HiFi marketplace.
Thank you Will.
John.
1990 Linn Index II LS120 Crossover and wiring upgrade.
Truly Outstanding performance upgrade flying in the face of conventional wisdom.
The resistor value is increased from 2.2 to 2.7 and is an official Linn Service 'performance' upgrade.
HF
C1 3.9uF Jantzen Superior z-cap
C3 1uF Mundorf MCap EVO Aluminium Oil
R1 Mundorf M-Resist 5W 2.7 Ohm 2% MOX
LF
C2 5.1 uF split
3.3 uF Mundorf MCap EVO Aluminium Oil
1.8 uF Jantzen Superior z-cap
Carded lambswool replacing original poly wadding. Increased weight replacing 132g ea. for 215g ea. This was weighed out in stages and determined by sonic performance.
Small amount approx 15cm sq of Bitumen foam panel placed in two pieces in base of cab. (leftovers from another project.)
Jantzen solid core speaker cable AWG 17/ 1.15mm stripped of PVC outer sheath to leave only high performance PE insulation. Doubled and twisted Star-Quad. 2.3mm
x2 400mm lengths ea.
Replace binding post steel nuts and locking nuts on back of PCB with copper nuts x8 and locktight. (steel nuts in signal path???= Nuts)
Remove all Plastic front panels and rubber securing bungs. Seal air holes in front baffle sockets. (Holes!)
Total cost £190.00.
Worth every penny! The cost of replicating this level of performance will be many, MANY times this amount. This understanding determined my budget. Happy to spend £200 upgrading on a gamble for the knowledge and experience. The results are very serious for this money.
I purchased these new in 1990 and paid £220.00. They were never highly regarded but always delivered a satisfying sound I never bored of even though Bass is not a strong point in this sealed design. Proximity to rear wall is everything here.
No previous experience with crossover upgrades. Never built a PCB. Very limited knowledge of electronics A beginner !
Every sonic element is vastly improved. Detail everywhere, Soundstage opened up. Depth, Clarity, Definition, Truly remarkable the level of performance these 'nothing special' loudspeakers are now delivering. They are being driven by Oppo 105 upgraded, John Sampson upgraded Musical Fidelity A1. All solid core power/interconnect/speaker cables.
This project was only completed 'confidently' with the kind, generous help and insights from Willys HIFI who supplied all the excellent Mundorf components.
Cannot thank Will enough for his patience and knowledge. My lack of knowledge and understanding was never a barrier to success only because Will was so helpful, enthusiastic and interested in my enquiries. Will cautioned against my extravagant choice of caps. The results could not be predicted and so a more responsible and cost efficient choice was Will's sagely recommendation. Trustworthy, Knowledgeable and Approachable. How refreshing. My choice was a gamble to push the limits and the budget, the results are beyond my hopes and expectations.
Highly commendable service and support. Outstanding in the Audio/HiFi marketplace.
Thank you Will.
John.