[Arcrux]

WTS: TRU Technology C-7.4T Copper Tube Amp Hybrid - VERY RARE!

Email: [email protected]

IF YOU"RE INTERESTED PLEASE EMAIL ME, IT IS THE BEST WAY TO REACH ME!


- Alright guys, this is the one! VERY RARE Tru/Abyss Copper Hybrid Tube Amp. If you're looking at this then you already know how unique this amp is and how few of them are in existence.
- Hand-made American Amp with tube pre-amp and solid state amplification stage, best of both worlds.
- Extremely rare, these are very hard to come by! Chance to own a RARE piece of art!
- Everything works 100% and I have taken very good care of it (see pictures).


- I will ONLY ACCEPT PAYPAL as a payment method for online.
- If you are in the Southern California area and want to buy it from me in person, I will ONLY ACCEPT CASH.
- I am NOT interested in any trades. Thanks!

Condition of all items:
9.5/10


Total Price: :
$2000 USD


Shipping Terms: :
I will include UPS shipping to anywhere in the WORLD w/ tracking.


SPECIFICATIONS:

Model: C-7.4T
Channels: 4 CH
Frequency Response: 20Hz ~ 20KHz ±1dB
Rated Power: 14.4 Volts DC
T.H.D.: < 0.01%
Pre-Amp Tube: 12 AT7 x 2
Driver Tube: 2 BH7 x 2
4 Ohm RMS: 100W x 4
2 Ohm RMS: 150W x 4
S/N Ratio: > 105dB
CH Separation: > 70dB
Input Sensitivity: 1 ~ 10 Volts
Turn-On Time: Approx. 10 sec.
Fuse Requirement: 100 Amp External
Tube Power Supply: 250 Volts
Power Supply: 11 ~ 16 Volts DC
External Cap Input: No
Dimensions: (L x W x H): 21 5/8" x 10 13/32" x 2 1/16"
Weight: 19 1/2 lbs. / 8.9 Kg

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[xxx_busa]

Very Nice Amp in fact its beautiful !

Great Seller !

 

[Victor_inox]

can you open tube compartment and tell me what type of tubes are they?

 

[Arcrux]

Thanks busa!

It's a great amp, I'm sad to see it go!

 

[DBlevel]

Must resist.............

 

[Victor_inox]

can you open tube compartment and tell me what type of tubes are they?

Just ignoring me?

 

[Victor_inox]

Must resist.............

Why, you know you want it.

 

[Arcrux]

Sorry for late reply, I've had a busy day at work today.

Victor, the tubes should be "12 AT7" model. Or at least that's what TRU has on the specs for the amp, and its all original. So as long as the manufacturer spec is correct, that's what kind of tubes they are.

I'd rather not take it apart if I dont have to. But if you're interesting in buying then I can at least take the front plate off and take some pictures and put them up here

 

[DBlevel]

Why, you know you want it.

I do

 

[Victor_inox]

Sorry for late reply, I've had a busy day at work today.

Victor, the tubes should be "12 AT7" model. Or at least that's what TRU has on the specs for the amp, and its all original. So as long as the manufacturer spec is correct, that's what kind of tubes they are.

I'd rather not take it apart if I dont have to. But if you're interesting in buying then I can at least take the front plate off and take some pictures and put them up here

tha`s fine, manual info is sufficient. BTW there is no taking apart to see/roll tubes, just a little window covering them.
12at7 is popular tube with tons of substitutes available both old stock and current production.
if anything this info should help to sell it quicker .
Now I want it, damn. I have a few absolutely crazy good 12au7.
Ohh BTW tubes socketed so replacements would be a breeze 20 seconds.
Another positive moment.

 

[shell.shock]

Factory equipped with Groove tubes.
PreAmp Tube: 2x 12AT7
Driver Tube: 2x 2BH7

 

[Victor_inox]

must be 12BH7not 2BH7, can be substituted successfully with 12AU7 . two tubes on the left is 12BH7, they taller than the rest of 12XX7 family. I use 12BH7 in place of 12AU7 often with great results.

 

[Arcrux]

tha`s fine, manual info is sufficient. BTW there is no taking apart to see/roll tubes, just a little window covering them.
12at7 is popular tube with tons of substitutes available both old stock and current production.
if anything this info should help to sell it quicker .
Now I want it, damn. I have a few absolutely crazy good 12au7.
Ohh BTW tubes socketed so replacements would be a breeze 20 seconds.
Another positive moment.

Ah I see, thanks for the info! I've heard of some people swapping the tubes on this, or other amps before, but on this particular copper with great results. I haven't tried it myself, but sounds worthwhile.

Good to know they can be easily changed, I haven't looked into that, but that's a pretty awesome design, maybe I'll try that on my other one sometime.

Anyways, thanks again for the info victor.

Another plus of this amp, it has easily upgrade-able tubes!

 

[2010hummerguy]

WOW don't think I've seen one of these since the ECA days.

Victor, which tubes in your collection would you install?

 

[Victor_inox]

WOW don't think I've seen one of these since the ECA days.

Victor, which tubes in your collection would you install?

I`d try them all since it`s such an easy proposition.
most likely RCA 12BH7 or Clear tops 12au7 for driver tubes and amperex bugle boy or telefunken for preamp tubes.
I`m still a bit confused about topography of that amp though.
4ch means that every triode section in double triode tubes used for each ch.
therefore all section of each tube works as preamp not driver.
most likely just marketing mumbo-jumbo. Unless tubes were selected that way specifically for active setup and tweeter get one type of tube while midbass use another.
Where information on tubes came from? Tru manual?

 

[casey]

I do

I approve this purchase

 

[Victor_inox]

Isn`t that funny how we push it to another member just not to buy it ourselves?

I want it but I have absolutely no use for it unlike DBLevel.

 

[WestCo]

Beautiful!

 

[Arcrux]

Well I think everyone should buy it! If 2 people buy it, I'll give you a both a 25% discount, and then you can share the tube awesomeness!

 

[Arcrux]

bump