2. amps-preamps
  3. 1379280405

How hard is this on a tube pre amp?

I have an audio research ref2 mkII going in to a proceed hpa2. You know those low signal channels, the ones that sometimes you record awesome live shows from? Well.... I feel kinda uneasy cranking the pre past 12 to 1:00 on the dial, but 3 sounds prett dang sweet.. Am I driving the crap out of the tubes?

It's gotten better, ( louder signal ) since going balanced from the oppo 105. But still, some things really have to be cranked.
no_money
no_money OP
638 posts
 
Czarivey, oppo list the output at 2.1 SE and 4.2 balanced.

Analog Audio Characteristics** Frequency Response: (RCA) 20Hz – 20kHz: ± 0.2dB, 20Hz – 96kHz: -1.5dB. (XLR) 20Hz –
20kHz: ± 0.3dB, 20Hz 96kHz: -1.5dB
Signal-to-Noise Ratio: >130dB (A-weighted, auto-mute), >115dB (A-weighted, no auto-mute)
THD+N: <0.0003% or -110dB (1kHz at 48k/24b, 0dBFS, 20kHz LPF), <0.0017% or -96dB
(1kHz at 44.1k/16b, 0dBFS, 20kHz LPF)
Output Level: 2.1 Vrms (RCA) or 4.2 Vrms (XLR) at 0dBFS
Dynamic Range: >110dBV
Channel Separation: >110dB
no_money OP
638 posts
 
And speakers are martin logan ascents. Not the most efficient speaker around, but not terrible.
no_money OP
638 posts
 
It's a live show from PBS... The levels are just crazy low. The funny part is the interviews shown between the live set are Normal, which is loud as heck at the volume needed for the music.
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