Rogers Cadet III (Mk3) - which input to use?

cr0wl3y · 17th September 2009, 09:57 AM

Hi there,

Could someone please advise which input is the best to use in a Rogers Cadet Mk3? I should mention that I am a DJ and am using a DJ mixer instead of pre-amp for my turntables, and the output of that is around 1V. Is the radio or tape input a better bet?

Thanks!

gingertube · 11:06 PM

Radio input is via the ECC807 preamp tubes - 2 triode stages with a tight feedback loop around them.
Tape input (Via the DIN Plug) bypasses the preamp. They have near identical sensitivity.
I tried both for an input from an FM Tuner and found I actually like the Radio Input with the extra "processing" of the sound.
Both will work OK for you - try both to see which you prefer.
Cheers,
Ian

Shoog · 18th September 2009, 11:41 AM

If you can try bypassing the preamp stage.

Shoog

cr0wl3y · 7th October 2009, 06:18 PM

Update for people that stumble into this looking for info:

Having looked through the schematics for the amp and pre-amp, seems that using the tape input bypasses part (but not all) of the the pre-amp circuit (bypasses the two of the three valves). Volume and tone controls still affect the sound but the balance doesn't. Obviously the sound is very different. Volume is a lot lower than through the radio input. This also confirms test data from here:

http://www.bassboy.com.au/getreel/cl...adet3/test.htm

Agree with Ian in preferring the sound through the radio input.

wicked1 · 7th October 2009, 07:58 PM

I tired listening to records w/ my dj mixer, and its horrible! Even the near $1000.00 pioneer sounds like shi_... It's fine when you're blasting the levels at a club, but for fine listening through a set and horns, it's just awful. Also, for me, club = techno/house where as listening through my tubes at home is usually jazz. UGH it's horrible sound.

Im building a phono amp now to get the dj mixer OUT of the mix!!!!!!

cr0wl3y · 3rd November 2009, 05:17 PM

Agree, mixer is not ideal but I'm a DJ and need to mix. Long term plan is to build a "box" with two volume controllable phono stages that go into a simple summing circuit and then that into my amp. Undecided over having EQ or not, so I'll probably add a by-passable send-return for that.

As for club=techno/house, well, I play disco, funk, rare groove, brazilian, jazz as well as italo, synth pop and the ocassional house and electro tune. All sounds much better through my valve amp and horns than most bog-standard club or studio monitoring systems!

17th September 2009, 09:57 AM	#1
cr0wl3y diyAudio Member Join Date: Sep 2009	Rogers Cadet III (Mk3) - which input to use? Hi there, Could someone please advise which input is the best to use in a Rogers Cadet Mk3? I should mention that I am a DJ and am using a DJ mixer instead of pre-amp for my turntables, and the output of that is around 1V. Is the radio or tape input a better bet? Thanks!

17th September 2009, 11:04 PM	#2
gingertube diyAudio Member Join Date: Oct 2004 Location: Adelaide South Oz	Radio input is via the ECC807 preamp tubes - 2 triode stages with a tight feedback loop around them. Tape input (Via the DIN Plug) bypasses the preamp. They have near identical sensitivity. I tried both for an input from an FM Tuner and found I actually like the Radio Input with the extra "processing" of the sound. Both will work OK for you - try both to see which you prefer. Cheers, Ian Last edited by gingertube; 17th September 2009 at 11:06 PM.

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18th September 2009, 11:41 AM	#3
Shoog diyAudio Member Join Date: Aug 2002 Location: Eire	If you can try bypassing the preamp stage. Shoog

7th October 2009, 06:18 PM	#4
cr0wl3y diyAudio Member Join Date: Sep 2009	Update for people that stumble into this looking for info: Having looked through the schematics for the amp and pre-amp, seems that using the tape input bypasses part (but not all) of the the pre-amp circuit (bypasses the two of the three valves). Volume and tone controls still affect the sound but the balance doesn't. Obviously the sound is very different. Volume is a lot lower than through the radio input. This also confirms test data from here: http://www.bassboy.com.au/getreel/cl...adet3/test.htm Agree with Ian in preferring the sound through the radio input.

7th October 2009, 07:58 PM	#5
wicked1 diyAudio Member Join Date: Jan 2008	I tired listening to records w/ my dj mixer, and its horrible! Even the near $1000.00 pioneer sounds like shi_... It's fine when you're blasting the levels at a club, but for fine listening through a set and horns, it's just awful. Also, for me, club = techno/house where as listening through my tubes at home is usually jazz. UGH it's horrible sound. Im building a phono amp now to get the dj mixer OUT of the mix!!!!!!

3rd November 2009, 05:17 PM	#6
cr0wl3y diyAudio Member Join Date: Sep 2009	Agree, mixer is not ideal but I'm a DJ and need to mix. Long term plan is to build a "box" with two volume controllable phono stages that go into a simple summing circuit and then that into my amp. Undecided over having EQ or not, so I'll probably add a by-passable send-return for that. As for club=techno/house, well, I play disco, funk, rare groove, brazilian, jazz as well as italo, synth pop and the ocassional house and electro tune. All sounds much better through my valve amp and horns than most bog-standard club or studio monitoring systems!

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