[valveman]

I have had this pair of headphones for a few years now. Bought them at a thrift store and am quite impressed with the fit and sound. Not terribly bassy but mids and highs are very nice.

I should say I own several other headphones:
Sony MDR-7506 MDR-V600
Fostex T-7
Grado SR-80
Sennheiser HD-201 and others so I won't say these are as good or as bad as the aformetioned. I own so many headphones cause each pair has its own character.

My question to the group is:
Anyone know anything about the Sony DR-45 Headphones?
I can't find any info anywhere.

Thanks for any help,
Robert

 

[kramer5150]

A lot of mid-late 90s sony cans kind of fit that description... ."not too bassy but smooth mids & highs". MDR-F1, MDR-CD870, MDR-CD580 come to mind off the top of my head.

Never heard of that model # though... can you post pics?

thanks,
Garrett

 

[valveman]

Hi Kramer5150
Here is a pic of the Sony DR-45. These are ultra comfortable and instead of having donut earpads, these are covered. I like how these are very well built. Last a lifetime.

Robert

 

[ueyteuor]

they are kind of built like beyers.. (did beyer copy sony?)

 

[valveman]

They sound very good.
I can wear these for hours.
I have a home studio and sometimes use these to clean-up tracks.
Seems impossible to find out any info.
Perhaps these were not sold in NorthAmerica.

Robert

 

[potatotron]

From an aesthetics standpoint, those look stellar. I'd proudly rock them.

 

[kramer5150]

Thanks for the pics, those look interesting. What is their impedance? Most (if not all) of that headphones from that time-period are very high impedance and benefit a great deal from a proper amp circuit. So the lack of bass you hear might be the result of under-amping.

Just speculating though...

 

[valveman]

Unfortunately the impedance is not written on them and I didn't take apart the phones to see if it is written on the drivers. I'm guessing maybe 32ohms because my ipod drives them nicely at 2/3rds where they are quite loud.

I designed a headphone amp that I use with all my headphones and these certainly do not require much persuation. Still not real bassy like my Sennheisers but I find at times the sens to be too bassy and have to EQ them depending on the material I'm listening to.

At the thrift store I paid about $6.00 for them and I'm sure these were quite a lot in the day. Whenever that was. I'm guessing mid to late 80s.

Robert

 

[Serge44]

Sony DR-45
It's version for german market. It was in production in 1976/77, 1978 and 1979 years.
In that time Sony manufactured 3 headphones:
electret headphones ECR-400 with its own headphone amp, DR-45 and DR-35 (his little brother).
I'm not sure about DR-45 impedance.
Sony designed new line of monitoring headphones DR-S after success of DR series in 1979-81 years. DR-S7 wich is, I only guess, successor of DR-45 has 14 Ohm impedance.

 

[blastcraft]

[size=xx-large]DR-45[/size]
 ■ 5,900 price \ 
■ Model dynamic open-air type 
40 mm dome-shaped diaphragm ■ 
■ impedance 25 ohms 
■ Play frequency band 20-20,000 Hz 
■ permissible input 250mW 
sensitivity 104dB/mW ■ 
■ code 2m 
■ Weight 370g (including code) 
Release ■ 1975 
1978 Discontinued ■ 

■ Remarks 
 
Find this on some japanese site. Might be helpfull !!