I have a 30 wpc tube amp driving 88dB sensitivity speakers. It seems to be able to drive them fine as far as I can tell... When I really crank it, it sounds pretty good still but I notice my volt meter on the amp starting to max out/red line at dynamic parts in music BUT the volume knob still has PLENTY to go.... So don't understand? Can you crank the volume up all the way or should you avoid "red lining" the volt meter?
Other thought I had was when it maxes out, thats where "clipping??" occurs?
I attached a pic of the volt meter.
That does seem a bit underpowered. In theory, 30 watts will get your 88 dB speaks a little over 100 dB @ 1 meter in front of each speaker. But also, bass needs power, and 30 isn't a lot, especially for somewhat inefficient spks.
My speakers are 83 dB @ 1 watt/1 meter, but they are bipolar, so ~86 dB in real world. I am running them with about 400 watts each. When I tried amps of around 100 wpc, they didn't really do it.
As others said, crank it and you will overdrive it. Although every volume control on a preamp/receiver is different, your typical 7-5 (on a clock) volume control, max output (before clipping anyway) is somewhere between 12 and 2.
EDIT: Just followed the link on that integrated amp, very nice. If the preamp section is passive, full volume will be @ 5 o'clock, but it probably has gain. I just ventured into tubes myself, with w/a Schiit Freya Tube preamp, and upgraded the tubes. I like it a lot.