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  #31  
Old 04-10-2021, 08:09 PM
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JayBee1404 JayBee1404 is offline
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Orchid Acoustic Pre-amp in the first list - input-Z should be 1 Megohm, and Phantom Power should be ‘Yes’ (48v Phantom Power is the only source of power for this unit).
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  #32  
Old 04-10-2021, 09:47 PM
jamison162 jamison162 is offline
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Originally Posted by JayBee1404 View Post
Orchid Acoustic Pre-amp in the first list - input-Z should be 1 Megohm, and Phantom Power should be ‘Yes’ (48v Phantom Power is the only source of power for this unit).
I knew this would become an issue as well. There's a difference in what "phantom power" really means and can vary per preamp. For the most part, Cuki's list is referring to preamps that can supply power to a signal source. Some low voltage to power a small electret mic, some full 48v to power regular condenser mics.

Then theres some units that can be powered by 48v phantom power ( i.e. Baggs PADI) rather than a battery or other power supply.

I think the Orchid can operate off of 48v phantom power from a mixer, but does not supply power for a signal source.

Hope this helps clarify.
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  #33  
Old 04-10-2021, 10:44 PM
M Hayden M Hayden is offline
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The ART Tube MP/C is a nice tube preamp/DI with a nice soft knee compressor.
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  #34  
Old 04-10-2021, 11:18 PM
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Wow ... awesome job Cuki! Very useful!!
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  #35  
Old 04-11-2021, 12:10 AM
phcorrigan phcorrigan is offline
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Quote:
Originally Posted by M Hayden View Post
The ART Tube MP/C is a nice tube preamp/DI with a nice soft knee compressor.
I have an ART Tube MP Studio Series, similar to the above but without compressor, and it's a nice, inexpensive tube compressor for either instrument or mic. Here are the specs:

Specifications:
Frequency Response 10Hz to 40kHz, +/-1 dB (typical)
Total Harmonic Distortion <0.05% (typical)
CMRR > 60dB (typical)
Dynamic Range > 100dB (20Hz to 20kHz)
Equivalent Input Noise <-130dB (XLR to XLR A-weighted)
Input Impedance Switchable, 4.7k Ω / 600 Ω (XLR)
Input/Output Connections Input: 1/4″ TRS unbalanced (1meg Ω), XLR female balanced. Output: 1/4″ TRS unbalanced (600 Ω), XLR male balanced (<300 Ω)
Maximum Gain 70dB (XLR – XLR), +50dB (1/4″ – XLR)
Input Gain Pad Switchable, 20dB
Maximum Input Level +17dBu (1/4″), +16dBu (XLR)
Maximum Output Level +20dBu (1/4″), +26dBu (XLR)
Low Cut Filter Switchable, -3dB @ 40Hz
Output Phase Switchable, Normal/Invert
Output Limiter Type Switchable, Fast & Musical FET Limiter, > 20dB limit range
Phantom Power Switchable, +48V DC, filtered, current limited
Signal Metering Precice LED array with a fast attack and moderate release
Chassis Type Aluminum Anodized with integral/stackable rubber sides
Power Requirements 10VAC @ 700mA (typ)
Tube Type 12AX7A hand selected
Dimensions 6.5″D x 5.9″ W x 1.75″ H (165mm x 150mm x 44.5mm)
Weight 2.5 lbs (1.14 kg)

Here's a link: https://artproaudio.com/product/tube-mp-project-series/
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  #36  
Old 04-11-2021, 01:56 AM
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Quote:
Originally Posted by jamison162 View Post
I think the Orchid can operate off of 48v phantom power from a mixer, but does not supply power for a signal source.
That’s correct - in fact, as I said in my post, 48v phantom power is the only power source for the Orchid Acoustic Pre-amp. No batteries, no 9v, just 48v phantom power.

Apologies for muddying the water, but the OP’s tables didn’t make it clear what the ‘ph PoW’ ’ column actually represented or, if it did, I failed to understand. It happens! Now I look further across the table I can see that he has ‘phantom’ indicated in the ‘Power’ column, which makes sense of course.
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  #37  
Old 04-11-2021, 03:25 AM
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Quote:
Originally Posted by phcorrigan View Post
Input Impedance Switchable, 4.7k Ω / 600 Ω (XLR)
The website says 2k/840k input impedance

https://artproaudio.com/product/tube-mp-studio/#specs
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  #38  
Old 04-11-2021, 04:47 AM
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Quote:
Originally Posted by M Hayden View Post
The ART Tube MP/C is a nice tube preamp/DI with a nice soft knee compressor.
Added the two ART tube preamps but with the specs from ART website
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  #39  
Old 04-11-2021, 04:48 AM
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Quote:
Originally Posted by JayBee1404 View Post
but the OP’s tables didn’t make it clear what the ‘ph PoW’ ’ column actually represented
I added a disambiguation line on the second post (must save room on the 1st one which is close to the character number limit).
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  #40  
Old 04-11-2021, 04:49 AM
Cuki79 Cuki79 is offline
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Quote:
Originally Posted by sdelsolray View Post
Missing from the single channel list:
Pendulum Audio HZ-10SE
Pendulum Audio SPS-1
Rane AP13
they are added.
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  #41  
Old 04-11-2021, 09:12 AM
phcorrigan phcorrigan is offline
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Quote:
Originally Posted by Cuki79 View Post
The website says 2k/840k input impedance[/URL]
That's a different preamp. That's the Studio, not the Project Series. The link in my message is for the Project Series.
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  #42  
Old 04-11-2021, 10:02 AM
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Thanks phcorrigan,

I was mistaken by this sentence
Quote:
Originally Posted by phcorrigan View Post
I have an ART Tube MP Studio Series,
I added the Project unit. It's actually the most interesting one since it allows to have 1M impedance on the jack input.
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  #43  
Old 04-11-2021, 10:39 AM
phcorrigan phcorrigan is offline
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Quote:
Originally Posted by Cuki79 View Post
Thanks phcorrigan,

I was mistaken by this sentence


I added the Project unit. It's actually the most interesting one since it allows to have 1M impedance on the jack input.
My mistake. I don't know how I did that.
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  #44  
Old 04-11-2021, 01:16 PM
Cuki79 Cuki79 is offline
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Quote:
Originally Posted by jamison162 View Post
the Pigtronics states "yes" but actually supplies 48v which would blow up the K&K mic, for example.
Some simple mod in order to not "blow up" your K&K mic:



One can change the diode voltage according to the mic capsule
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